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rebase: update kubernetes to v1.20.0

Browse Source 
updated kubernetes packages to latest
release.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna
2020-12-17 17:58:29 +05:30
committed by mergify[bot]
parent 4abe128bd8
commit 83559144b1
1624 changed files with 247222 additions and 160270 deletions
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45
vendor/k8s.io/kubernetes/pkg/kubelet/apis/BUILD generated vendored
View File

@ -1,45 +0,0 @@
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
)
go_library(
name = "go_default_library",
srcs = [
"well_known_annotations.go",
"well_known_annotations_windows.go",
"well_known_labels.go",
],
importpath = "k8s.io/kubernetes/pkg/kubelet/apis",
deps = [
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
] + select({
"@io_bazel_rules_go//go/platform:windows": [
"//pkg/features:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
],
"//conditions:default": [],
}),
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [
":package-srcs",
"//pkg/kubelet/apis/config:all-srcs",
"//pkg/kubelet/apis/podresources:all-srcs",
"//pkg/kubelet/apis/resourcemetrics/v1alpha1:all-srcs",
"//pkg/kubelet/apis/stats/v1alpha1:all-srcs",
],
tags = ["automanaged"],
)

10
vendor/k8s.io/kubernetes/pkg/kubelet/apis/config/BUILD generated vendored
View File

@ -21,6 +21,7 @@ go_library(
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
"//staging/src/k8s.io/component-base/config:go_default_library",
],
)
@ -37,6 +38,7 @@ filegroup(
":package-srcs",
"//pkg/kubelet/apis/config/fuzzer:all-srcs",
"//pkg/kubelet/apis/config/scheme:all-srcs",
"//pkg/kubelet/apis/config/v1alpha1:all-srcs",
"//pkg/kubelet/apis/config/v1beta1:all-srcs",
"//pkg/kubelet/apis/config/validation:all-srcs",
],
@ -45,10 +47,16 @@ filegroup(
go_test(
name = "go_default_test",
srcs = ["helpers_test.go"],
srcs = [
"helpers_test.go",
"register_test.go",
],
embed = [":go_default_library"],
deps = [
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/validation/field:go_default_library",
"//staging/src/k8s.io/component-base/config/testing:go_default_library",
],
)

7
vendor/k8s.io/kubernetes/pkg/kubelet/apis/config/OWNERS generated vendored
View File

@ -1,6 +1,9 @@
# See the OWNERS docs at https://go.k8s.io/owners
# Disable inheritance as this is an api owners file
options:
no_parent_owners: true
approvers:
- mtaufen
- api-approvers
reviewers:
- sig-node-reviewers
- sig-node-api-reviewers

1
vendor/k8s.io/kubernetes/pkg/kubelet/apis/config/helpers.go generated vendored
View File

@ -26,5 +26,6 @@ func KubeletConfigurationPathRefs(kc *KubeletConfiguration) []*string {
paths = append(paths, &kc.TLSCertFile)
paths = append(paths, &kc.TLSPrivateKeyFile)
paths = append(paths, &kc.ResolverConfig)
paths = append(paths, &kc.VolumePluginDir)
return paths
}

1
vendor/k8s.io/kubernetes/pkg/kubelet/apis/config/register.go generated vendored
View File

@ -39,6 +39,7 @@ func addKnownTypes(scheme *runtime.Scheme) error {
scheme.AddKnownTypes(SchemeGroupVersion,
&KubeletConfiguration{},
&SerializedNodeConfigSource{},
&CredentialProviderConfig{},
)
return nil
}

129
vendor/k8s.io/kubernetes/pkg/kubelet/apis/config/types.go generated vendored
View File

@ -19,6 +19,7 @@ package config
import (
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
componentbaseconfig "k8s.io/component-base/config"
)
// HairpinMode denotes how the kubelet should configure networking to handle
@ -60,12 +61,18 @@ const (
// BestEffortTopologyManagerPolicy is a mode in which kubelet will favour
// pods with NUMA alignment of CPU and device resources.
BestEffortTopologyManagerPolicy = "best-effort"
// NoneTopologyManager Policy is a mode in which kubelet has no knowledge
// NoneTopologyManagerPolicy is a mode in which kubelet has no knowledge
// of NUMA alignment of a pod's CPU and device resources.
NoneTopologyManagerPolicy = "none"
// SingleNumaNodeTopologyManager Policy iis a mode in which kubelet only allows
// SingleNumaNodeTopologyManagerPolicy is a mode in which kubelet only allows
// pods with a single NUMA alignment of CPU and device resources.
SingleNumaNodeTopologyManager = "single-numa-node"
SingleNumaNodeTopologyManagerPolicy = "single-numa-node"
// ContainerTopologyManagerScope represents that
// topology policy is applied on a per-container basis.
ContainerTopologyManagerScope = "container"
// PodTopologyManagerScope represents that
// topology policy is applied on a per-pod basis.
PodTopologyManagerScope = "pod"
)
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
@ -74,6 +81,9 @@ const (
type KubeletConfiguration struct {
metav1.TypeMeta
// enableServer enables Kubelet's secured server.
// Note: Kubelet's insecure port is controlled by the readOnlyPort option.
EnableServer bool
// staticPodPath is the path to the directory containing local (static) pods to
// run, or the path to a single static pod file.
StaticPodPath string
@ -97,6 +107,12 @@ type KubeletConfiguration struct {
// readOnlyPort is the read-only port for the Kubelet to serve on with
// no authentication/authorization (set to 0 to disable)
ReadOnlyPort int32
// volumePluginDir is the full path of the directory in which to search
// for additional third party volume plugins.
VolumePluginDir string
// providerID, if set, sets the unique id of the instance that an external provider (i.e. cloudprovider)
// can use to identify a specific node
ProviderID string
// tlsCertFile is the file containing x509 Certificate for HTTPS. (CA cert,
// if any, concatenated after server cert). If tlsCertFile and
// tlsPrivateKeyFile are not provided, a self-signed certificate
@ -113,8 +129,7 @@ type KubeletConfiguration struct {
TLSMinVersion string
// rotateCertificates enables client certificate rotation. The Kubelet will request a
// new certificate from the certificates.k8s.io API. This requires an approver to approve the
// certificate signing requests. The RotateKubeletClientCertificate feature
// must be enabled.
// certificate signing requests.
RotateCertificates bool
// serverTLSBootstrap enables server certificate bootstrap. Instead of self
// signing a serving certificate, the Kubelet will request a certificate from
@ -212,6 +227,12 @@ type KubeletConfiguration struct {
// TopologyManagerPolicy is the name of the policy to use.
// Policies other than "none" require the TopologyManager feature gate to be enabled.
TopologyManagerPolicy string
// TopologyManagerScope represents the scope of topology hint generation
// that topology manager requests and hint providers generate.
// "pod" scope requires the TopologyManager feature gate to be enabled.
// Default: "container"
// +optional
TopologyManagerScope string
// Map of QoS resource reservation percentages (memory only for now).
// Requires the QOSReserved feature gate to be enabled.
QOSReserved map[string]string
@ -238,6 +259,9 @@ type KubeletConfiguration struct {
// ResolverConfig is the resolver configuration file used as the basis
// for the container DNS resolution configuration.
ResolverConfig string
// RunOnce causes the Kubelet to check the API server once for pods,
// run those in addition to the pods specified by static pod files, and exit.
RunOnce bool
// cpuCFSQuota enables CPU CFS quota enforcement for containers that
// specify CPU limits
CPUCFSQuota bool
@ -245,6 +269,8 @@ type KubeletConfiguration struct {
CPUCFSQuotaPeriod metav1.Duration
// maxOpenFiles is Number of files that can be opened by Kubelet process.
MaxOpenFiles int64
// nodeStatusMaxImages caps the number of images reported in Node.Status.Images.
NodeStatusMaxImages int32
// contentType is contentType of requests sent to apiserver.
ContentType string
// kubeAPIQPS is the QPS to use while talking with kubernetes apiserver
@ -308,6 +334,9 @@ type KubeletConfiguration struct {
// These sysctls are namespaced but not allowed by default. For example: "kernel.msg*,net.ipv4.route.min_pmtu"
// +optional
AllowedUnsafeSysctls []string
// kernelMemcgNotification if enabled, the kubelet will integrate with the kernel memcg
// notification to determine if memory eviction thresholds are crossed rather than polling.
KernelMemcgNotification bool
/* the following fields are meant for Node Allocatable */
@ -341,6 +370,18 @@ type KubeletConfiguration struct {
// The purpose of this format is make sure you have the opportunity to notice if the next release hides additional metrics,
// rather than being surprised when they are permanently removed in the release after that.
ShowHiddenMetricsForVersion string
// Logging specifies the options of logging.
// Refer [Logs Options](https://github.com/kubernetes/component-base/blob/master/logs/options.go) for more information.
Logging componentbaseconfig.LoggingConfiguration
// EnableSystemLogHandler enables /logs handler.
EnableSystemLogHandler bool
// ShutdownGracePeriod specifies the total duration that the node should delay the shutdown and total grace period for pod termination during a node shutdown.
// Defaults to 30 seconds, requires GracefulNodeShutdown feature gate to be enabled.
ShutdownGracePeriod metav1.Duration
// ShutdownGracePeriodCriticalPods specifies the duration used to terminate critical pods during a node shutdown. This should be less than ShutdownGracePeriod.
// Defaults to 10 seconds, requires GracefulNodeShutdown feature gate to be enabled.
// For example, if ShutdownGracePeriod=30s, and ShutdownGracePeriodCriticalPods=10s, during a node shutdown the first 20 seconds would be reserved for gracefully terminating normal pods, and the last 10 seconds would be reserved for terminating critical pods.
ShutdownGracePeriodCriticalPods metav1.Duration
}
// KubeletAuthorizationMode denotes the authorization mode for the kubelet
@ -399,7 +440,7 @@ type KubeletWebhookAuthentication struct {
CacheTTL metav1.Duration
}
// KubeletAnonymousAuthentication enables anonymous requests to the kubetlet server.
// KubeletAnonymousAuthentication enables anonymous requests to the kubelet server.
type KubeletAnonymousAuthentication struct {
// enabled allows anonymous requests to the kubelet server.
// Requests that are not rejected by another authentication method are treated as anonymous requests.
@ -418,3 +459,79 @@ type SerializedNodeConfigSource struct {
// +optional
Source v1.NodeConfigSource
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// CredentialProviderConfig is the configuration containing information about
// each exec credential provider. Kubelet reads this configuration from disk and enables
// each provider as specified by the CredentialProvider type.
type CredentialProviderConfig struct {
metav1.TypeMeta
// providers is a list of credential provider plugins that will be enabled by the kubelet.
// Multiple providers may match against a single image, in which case credentials
// from all providers will be returned to the kubelet. If multiple providers are called
// for a single image, the results are combined. If providers return overlapping
// auth keys, the value from the provider earlier in this list is used.
Providers []CredentialProvider
}
// CredentialProvider represents an exec plugin to be invoked by the kubelet. The plugin is only
// invoked when an image being pulled matches the images handled by the plugin (see matchImages).
type CredentialProvider struct {
// name is the required name of the credential provider. It must match the name of the
// provider executable as seen by the kubelet. The executable must be in the kubelet's
// bin directory (set by the --credential-provider-bin-dir flag).
Name string
// matchImages is a required list of strings used to match against images in order to
// determine if this provider should be invoked. If one of the strings matches the
// requested image from the kubelet, the plugin will be invoked and given a chance
// to provide credentials. Images are expected to contain the registry domain
// and URL path.
//
// Each entry in matchImages is a pattern which can optionally contain a port and a path.
// Globs can be used in the domain, but not in the port or the path. Globs are supported
// as subdomains like '*.k8s.io' or 'k8s.*.io', and top-level-domains such as 'k8s.*'.
// Matching partial subdomains like 'app*.k8s.io' is also supported. Each glob can only match
// a single subdomain segment, so *.io does not match *.k8s.io.
//
// A match exists between an image and a matchImage when all of the below are true:
// - Both contain the same number of domain parts and each part matches.
// - The URL path of an imageMatch must be a prefix of the target image URL path.
// - If the imageMatch contains a port, then the port must match in the image as well.
//
// Example values of matchImages:
// - 123456789.dkr.ecr.us-east-1.amazonaws.com
// - *.azurecr.io
// - gcr.io
// - *.*.registry.io
// - registry.io:8080/path
MatchImages []string
// defaultCacheDuration is the default duration the plugin will cache credentials in-memory
// if a cache duration is not provided in the plugin response. This field is required.
DefaultCacheDuration *metav1.Duration
// Required input version of the exec CredentialProviderRequest. The returned CredentialProviderResponse
// MUST use the same encoding version as the input. Current supported values are:
// - credentialprovider.kubelet.k8s.io/v1alpha1
APIVersion string
// Arguments to pass to the command when executing it.
// +optional
Args []string
// Env defines additional environment variables to expose to the process. These
// are unioned with the host's environment, as well as variables client-go uses
// to pass argument to the plugin.
// +optional
Env []ExecEnvVar
}
// ExecEnvVar is used for setting environment variables when executing an exec-based
// credential plugin.
type ExecEnvVar struct {
Name string
Value string
}

88
vendor/k8s.io/kubernetes/pkg/kubelet/apis/config/zz_generated.deepcopy.go generated vendored
View File

@ -21,9 +21,94 @@ limitations under the License.
package config
import (
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
runtime "k8s.io/apimachinery/pkg/runtime"
)
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *CredentialProvider) DeepCopyInto(out *CredentialProvider) {
*out = *in
if in.MatchImages != nil {
in, out := &in.MatchImages, &out.MatchImages
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.DefaultCacheDuration != nil {
in, out := &in.DefaultCacheDuration, &out.DefaultCacheDuration
*out = new(v1.Duration)
**out = **in
}
if in.Args != nil {
in, out := &in.Args, &out.Args
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.Env != nil {
in, out := &in.Env, &out.Env
*out = make([]ExecEnvVar, len(*in))
copy(*out, *in)
}
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new CredentialProvider.
func (in *CredentialProvider) DeepCopy() *CredentialProvider {
if in == nil {
return nil
}
out := new(CredentialProvider)
in.DeepCopyInto(out)
return out
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *CredentialProviderConfig) DeepCopyInto(out *CredentialProviderConfig) {
*out = *in
out.TypeMeta = in.TypeMeta
if in.Providers != nil {
in, out := &in.Providers, &out.Providers
*out = make([]CredentialProvider, len(*in))
for i := range *in {
(*in)[i].DeepCopyInto(&(*out)[i])
}
}
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new CredentialProviderConfig.
func (in *CredentialProviderConfig) DeepCopy() *CredentialProviderConfig {
if in == nil {
return nil
}
out := new(CredentialProviderConfig)
in.DeepCopyInto(out)
return out
}
// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
func (in *CredentialProviderConfig) DeepCopyObject() runtime.Object {
if c := in.DeepCopy(); c != nil {
return c
}
return nil
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *ExecEnvVar) DeepCopyInto(out *ExecEnvVar) {
*out = *in
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExecEnvVar.
func (in *ExecEnvVar) DeepCopy() *ExecEnvVar {
if in == nil {
return nil
}
out := new(ExecEnvVar)
in.DeepCopyInto(out)
return out
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *KubeletAnonymousAuthentication) DeepCopyInto(out *KubeletAnonymousAuthentication) {
*out = *in
@ -185,6 +270,9 @@ func (in *KubeletConfiguration) DeepCopyInto(out *KubeletConfiguration) {
*out = make([]string, len(*in))
copy(*out, *in)
}
out.Logging = in.Logging
out.ShutdownGracePeriod = in.ShutdownGracePeriod
out.ShutdownGracePeriodCriticalPods = in.ShutdownGracePeriodCriticalPods
return
}

26
vendor/k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1/BUILD generated vendored
View File

@ -1,26 +0,0 @@
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
)
go_library(
name = "go_default_library",
srcs = ["types.go"],
importpath = "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1",
deps = ["//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library"],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)

335
vendor/k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1/types.go generated vendored
View File

@ -1,335 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package v1alpha1
import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// Summary is a top-level container for holding NodeStats and PodStats.
type Summary struct {
// Overall node stats.
Node NodeStats `json:"node"`
// Per-pod stats.
Pods []PodStats `json:"pods"`
}
// NodeStats holds node-level unprocessed sample stats.
type NodeStats struct {
// Reference to the measured Node.
NodeName string `json:"nodeName"`
// Stats of system daemons tracked as raw containers.
// The system containers are named according to the SystemContainer* constants.
// +optional
// +patchMergeKey=name
// +patchStrategy=merge
SystemContainers []ContainerStats `json:"systemContainers,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
// The time at which data collection for the node-scoped (i.e. aggregate) stats was (re)started.
StartTime metav1.Time `json:"startTime"`
// Stats pertaining to CPU resources.
// +optional
CPU *CPUStats `json:"cpu,omitempty"`
// Stats pertaining to memory (RAM) resources.
// +optional
Memory *MemoryStats `json:"memory,omitempty"`
// Stats pertaining to network resources.
// +optional
Network *NetworkStats `json:"network,omitempty"`
// Stats pertaining to total usage of filesystem resources on the rootfs used by node k8s components.
// NodeFs.Used is the total bytes used on the filesystem.
// +optional
Fs *FsStats `json:"fs,omitempty"`
// Stats about the underlying container runtime.
// +optional
Runtime *RuntimeStats `json:"runtime,omitempty"`
// Stats about the rlimit of system.
// +optional
Rlimit *RlimitStats `json:"rlimit,omitempty"`
}
// RlimitStats are stats rlimit of OS.
type RlimitStats struct {
Time metav1.Time `json:"time"`
// The max PID of OS.
MaxPID *int64 `json:"maxpid,omitempty"`
// The number of running process in the OS.
NumOfRunningProcesses *int64 `json:"curproc,omitempty"`
}
// RuntimeStats are stats pertaining to the underlying container runtime.
type RuntimeStats struct {
// Stats about the underlying filesystem where container images are stored.
// This filesystem could be the same as the primary (root) filesystem.
// Usage here refers to the total number of bytes occupied by images on the filesystem.
// +optional
ImageFs *FsStats `json:"imageFs,omitempty"`
}
const (
// SystemContainerKubelet is the container name for the system container tracking Kubelet usage.
SystemContainerKubelet = "kubelet"
// SystemContainerRuntime is the container name for the system container tracking the runtime (e.g. docker) usage.
SystemContainerRuntime = "runtime"
// SystemContainerMisc is the container name for the system container tracking non-kubernetes processes.
SystemContainerMisc = "misc"
// SystemContainerPods is the container name for the system container tracking user pods.
SystemContainerPods = "pods"
)
// PodStats holds pod-level unprocessed sample stats.
type PodStats struct {
// Reference to the measured Pod.
PodRef PodReference `json:"podRef"`
// The time at which data collection for the pod-scoped (e.g. network) stats was (re)started.
StartTime metav1.Time `json:"startTime"`
// Stats of containers in the measured pod.
// +patchMergeKey=name
// +patchStrategy=merge
Containers []ContainerStats `json:"containers" patchStrategy:"merge" patchMergeKey:"name"`
// Stats pertaining to CPU resources consumed by pod cgroup (which includes all containers' resource usage and pod overhead).
// +optional
CPU *CPUStats `json:"cpu,omitempty"`
// Stats pertaining to memory (RAM) resources consumed by pod cgroup (which includes all containers' resource usage and pod overhead).
// +optional
Memory *MemoryStats `json:"memory,omitempty"`
// Stats pertaining to network resources.
// +optional
Network *NetworkStats `json:"network,omitempty"`
// Stats pertaining to volume usage of filesystem resources.
// VolumeStats.UsedBytes is the number of bytes used by the Volume
// +optional
// +patchMergeKey=name
// +patchStrategy=merge
VolumeStats []VolumeStats `json:"volume,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
// EphemeralStorage reports the total filesystem usage for the containers and emptyDir-backed volumes in the measured Pod.
// +optional
EphemeralStorage *FsStats `json:"ephemeral-storage,omitempty"`
}
// ContainerStats holds container-level unprocessed sample stats.
type ContainerStats struct {
// Reference to the measured container.
Name string `json:"name"`
// The time at which data collection for this container was (re)started.
StartTime metav1.Time `json:"startTime"`
// Stats pertaining to CPU resources.
// +optional
CPU *CPUStats `json:"cpu,omitempty"`
// Stats pertaining to memory (RAM) resources.
// +optional
Memory *MemoryStats `json:"memory,omitempty"`
// Metrics for Accelerators. Each Accelerator corresponds to one element in the array.
Accelerators []AcceleratorStats `json:"accelerators,omitempty"`
// Stats pertaining to container rootfs usage of filesystem resources.
// Rootfs.UsedBytes is the number of bytes used for the container write layer.
// +optional
Rootfs *FsStats `json:"rootfs,omitempty"`
// Stats pertaining to container logs usage of filesystem resources.
// Logs.UsedBytes is the number of bytes used for the container logs.
// +optional
Logs *FsStats `json:"logs,omitempty"`
// User defined metrics that are exposed by containers in the pod. Typically, we expect only one container in the pod to be exposing user defined metrics. In the event of multiple containers exposing metrics, they will be combined here.
// +patchMergeKey=name
// +patchStrategy=merge
UserDefinedMetrics []UserDefinedMetric `json:"userDefinedMetrics,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
}
// PodReference contains enough information to locate the referenced pod.
type PodReference struct {
Name string `json:"name"`
Namespace string `json:"namespace"`
UID string `json:"uid"`
}
// InterfaceStats contains resource value data about interface.
type InterfaceStats struct {
// The name of the interface
Name string `json:"name"`
// Cumulative count of bytes received.
// +optional
RxBytes *uint64 `json:"rxBytes,omitempty"`
// Cumulative count of receive errors encountered.
// +optional
RxErrors *uint64 `json:"rxErrors,omitempty"`
// Cumulative count of bytes transmitted.
// +optional
TxBytes *uint64 `json:"txBytes,omitempty"`
// Cumulative count of transmit errors encountered.
// +optional
TxErrors *uint64 `json:"txErrors,omitempty"`
}
// NetworkStats contains data about network resources.
type NetworkStats struct {
// The time at which these stats were updated.
Time metav1.Time `json:"time"`
// Stats for the default interface, if found
InterfaceStats `json:",inline"`
Interfaces []InterfaceStats `json:"interfaces,omitempty"`
}
// CPUStats contains data about CPU usage.
type CPUStats struct {
// The time at which these stats were updated.
Time metav1.Time `json:"time"`
// Total CPU usage (sum of all cores) averaged over the sample window.
// The "core" unit can be interpreted as CPU core-nanoseconds per second.
// +optional
UsageNanoCores *uint64 `json:"usageNanoCores,omitempty"`
// Cumulative CPU usage (sum of all cores) since object creation.
// +optional
UsageCoreNanoSeconds *uint64 `json:"usageCoreNanoSeconds,omitempty"`
}
// MemoryStats contains data about memory usage.
type MemoryStats struct {
// The time at which these stats were updated.
Time metav1.Time `json:"time"`
// Available memory for use. This is defined as the memory limit - workingSetBytes.
// If memory limit is undefined, the available bytes is omitted.
// +optional
AvailableBytes *uint64 `json:"availableBytes,omitempty"`
// Total memory in use. This includes all memory regardless of when it was accessed.
// +optional
UsageBytes *uint64 `json:"usageBytes,omitempty"`
// The amount of working set memory. This includes recently accessed memory,
// dirty memory, and kernel memory. WorkingSetBytes is <= UsageBytes
// +optional
WorkingSetBytes *uint64 `json:"workingSetBytes,omitempty"`
// The amount of anonymous and swap cache memory (includes transparent
// hugepages).
// +optional
RSSBytes *uint64 `json:"rssBytes,omitempty"`
// Cumulative number of minor page faults.
// +optional
PageFaults *uint64 `json:"pageFaults,omitempty"`
// Cumulative number of major page faults.
// +optional
MajorPageFaults *uint64 `json:"majorPageFaults,omitempty"`
}
// AcceleratorStats contains stats for accelerators attached to the container.
type AcceleratorStats struct {
// Make of the accelerator (nvidia, amd, google etc.)
Make string `json:"make"`
// Model of the accelerator (tesla-p100, tesla-k80 etc.)
Model string `json:"model"`
// ID of the accelerator.
ID string `json:"id"`
// Total accelerator memory.
// unit: bytes
MemoryTotal uint64 `json:"memoryTotal"`
// Total accelerator memory allocated.
// unit: bytes
MemoryUsed uint64 `json:"memoryUsed"`
// Percent of time over the past sample period (10s) during which
// the accelerator was actively processing.
DutyCycle uint64 `json:"dutyCycle"`
}
// VolumeStats contains data about Volume filesystem usage.
type VolumeStats struct {
// Embedded FsStats
FsStats
// Name is the name given to the Volume
// +optional
Name string `json:"name,omitempty"`
// Reference to the PVC, if one exists
// +optional
PVCRef *PVCReference `json:"pvcRef,omitempty"`
}
// PVCReference contains enough information to describe the referenced PVC.
type PVCReference struct {
Name string `json:"name"`
Namespace string `json:"namespace"`
}
// FsStats contains data about filesystem usage.
type FsStats struct {
// The time at which these stats were updated.
Time metav1.Time `json:"time"`
// AvailableBytes represents the storage space available (bytes) for the filesystem.
// +optional
AvailableBytes *uint64 `json:"availableBytes,omitempty"`
// CapacityBytes represents the total capacity (bytes) of the filesystems underlying storage.
// +optional
CapacityBytes *uint64 `json:"capacityBytes,omitempty"`
// UsedBytes represents the bytes used for a specific task on the filesystem.
// This may differ from the total bytes used on the filesystem and may not equal CapacityBytes - AvailableBytes.
// e.g. For ContainerStats.Rootfs this is the bytes used by the container rootfs on the filesystem.
// +optional
UsedBytes *uint64 `json:"usedBytes,omitempty"`
// InodesFree represents the free inodes in the filesystem.
// +optional
InodesFree *uint64 `json:"inodesFree,omitempty"`
// Inodes represents the total inodes in the filesystem.
// +optional
Inodes *uint64 `json:"inodes,omitempty"`
// InodesUsed represents the inodes used by the filesystem
// This may not equal Inodes - InodesFree because this filesystem may share inodes with other "filesystems"
// e.g. For ContainerStats.Rootfs, this is the inodes used only by that container, and does not count inodes used by other containers.
InodesUsed *uint64 `json:"inodesUsed,omitempty"`
}
// UserDefinedMetricType defines how the metric should be interpreted by the user.
type UserDefinedMetricType string
const (
// MetricGauge is an instantaneous value. May increase or decrease.
MetricGauge UserDefinedMetricType = "gauge"
// MetricCumulative is a counter-like value that is only expected to increase.
MetricCumulative UserDefinedMetricType = "cumulative"
// MetricDelta is a rate over a time period.
MetricDelta UserDefinedMetricType = "delta"
)
// UserDefinedMetricDescriptor contains metadata that describes a user defined metric.
type UserDefinedMetricDescriptor struct {
// The name of the metric.
Name string `json:"name"`
// Type of the metric.
Type UserDefinedMetricType `json:"type"`
// Display Units for the stats.
Units string `json:"units"`
// Metadata labels associated with this metric.
// +optional
Labels map[string]string `json:"labels,omitempty"`
}
// UserDefinedMetric represents a metric defined and generated by users.
type UserDefinedMetric struct {
UserDefinedMetricDescriptor `json:",inline"`
// The time at which these stats were updated.
Time metav1.Time `json:"time"`
// Value of the metric. Float64s have 53 bit precision.
// We do not foresee any metrics exceeding that value.
Value float64 `json:"value"`
}

26
vendor/k8s.io/kubernetes/pkg/kubelet/apis/well_known_annotations.go generated vendored
View File

@ -1,26 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package apis
const (
// AnnotationProvidedIPAddr is a node IP annotation set by the "external" cloud provider.
// When kubelet is started with the "external" cloud provider, then
// it sets this annotation on the node to denote an ip address set from the
// cmd line flag (--node-ip). This ip is verified with the cloudprovider as valid by
// the cloud-controller-manager
AnnotationProvidedIPAddr = "alpha.kubernetes.io/provided-node-ip"
)

43
vendor/k8s.io/kubernetes/pkg/kubelet/apis/well_known_annotations_windows.go generated vendored
View File

@ -1,43 +0,0 @@
// +build windows
/*
Copyright 2018 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package apis
import (
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/kubernetes/pkg/features"
)
const (
// HypervIsolationAnnotationKey is used to run windows containers with hyperv isolation.
// Refer https://aka.ms/hyperv-container.
HypervIsolationAnnotationKey = "experimental.windows.kubernetes.io/isolation-type"
// HypervIsolationValue is used to run windows containers with hyperv isolation.
// Refer https://aka.ms/hyperv-container.
HypervIsolationValue = "hyperv"
)
// ShouldIsolatedByHyperV returns true if a windows container should be run with hyperv isolation.
func ShouldIsolatedByHyperV(annotations map[string]string) bool {
if !utilfeature.DefaultFeatureGate.Enabled(features.HyperVContainer) {
return false
}
v, ok := annotations[HypervIsolationAnnotationKey]
return ok && v == HypervIsolationValue
}

91
vendor/k8s.io/kubernetes/pkg/kubelet/apis/well_known_labels.go generated vendored
View File

@ -1,91 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package apis
import (
"strings"
"k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/util/sets"
)
const (
// LabelOS is a label to indicate the operating system of the node.
// The OS labels are promoted to GA in 1.14. kubelet applies both beta
// and GA labels to ensure backward compatibility.
// TODO: stop applying the beta OS labels in Kubernetes 1.18.
LabelOS = "beta.kubernetes.io/os"
// LabelArch is a label to indicate the architecture of the node.
// The Arch labels are promoted to GA in 1.14. kubelet applies both beta
// and GA labels to ensure backward compatibility.
// TODO: stop applying the beta Arch labels in Kubernetes 1.18.
LabelArch = "beta.kubernetes.io/arch"
)
var kubeletLabels = sets.NewString(
v1.LabelHostname,
v1.LabelZoneFailureDomainStable,
v1.LabelZoneRegionStable,
v1.LabelZoneFailureDomain,
v1.LabelZoneRegion,
v1.LabelInstanceType,
v1.LabelInstanceTypeStable,
v1.LabelOSStable,
v1.LabelArchStable,
LabelOS,
LabelArch,
)
var kubeletLabelNamespaces = sets.NewString(
v1.LabelNamespaceSuffixKubelet,
v1.LabelNamespaceSuffixNode,
)
// KubeletLabels returns the list of label keys kubelets are allowed to set on their own Node objects
func KubeletLabels() []string {
return kubeletLabels.List()
}
// KubeletLabelNamespaces returns the list of label key namespaces kubelets are allowed to set on their own Node objects
func KubeletLabelNamespaces() []string {
return kubeletLabelNamespaces.List()
}
// IsKubeletLabel returns true if the label key is one that kubelets are allowed to set on their own Node object.
// This checks if the key is in the KubeletLabels() list, or has a namespace in the KubeletLabelNamespaces() list.
func IsKubeletLabel(key string) bool {
if kubeletLabels.Has(key) {
return true
}
namespace := getLabelNamespace(key)
for allowedNamespace := range kubeletLabelNamespaces {
if namespace == allowedNamespace || strings.HasSuffix(namespace, "."+allowedNamespace) {
return true
}
}
return false
}
func getLabelNamespace(key string) string {
if parts := strings.SplitN(key, "/", 2); len(parts) == 2 {
return parts[0]
}
return ""
}

85
vendor/k8s.io/kubernetes/pkg/kubelet/container/BUILD generated vendored
View File

@ -1,85 +0,0 @@
load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
go_library(
name = "go_default_library",
srcs = [
"cache.go",
"container_gc.go",
"container_reference_manager.go",
"helpers.go",
"os.go",
"ref.go",
"resize.go",
"runtime.go",
"runtime_cache.go",
"runtime_cache_fake.go",
"sync_result.go",
],
importpath = "k8s.io/kubernetes/pkg/kubelet/container",
visibility = ["//visibility:public"],
deps = [
"//pkg/api/legacyscheme:go_default_library",
"//pkg/api/v1/pod:go_default_library",
"//pkg/features:go_default_library",
"//pkg/kubelet/util/format:go_default_library",
"//pkg/util/hash:go_default_library",
"//pkg/volume:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/errors:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/runtime:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
"//staging/src/k8s.io/client-go/tools/record:go_default_library",
"//staging/src/k8s.io/client-go/tools/reference:go_default_library",
"//staging/src/k8s.io/client-go/tools/remotecommand:go_default_library",
"//staging/src/k8s.io/client-go/util/flowcontrol:go_default_library",
"//staging/src/k8s.io/cri-api/pkg/apis/runtime/v1alpha2:go_default_library",
"//third_party/forked/golang/expansion:go_default_library",
"//vendor/k8s.io/klog:go_default_library",
"//vendor/k8s.io/utils/net:go_default_library",
],
)
go_test(
name = "go_default_test",
srcs = [
"cache_test.go",
"container_hash_test.go",
"helpers_test.go",
"ref_test.go",
"runtime_cache_test.go",
"sync_result_test.go",
],
embed = [":go_default_library"],
deps = [
"//pkg/apis/core/install:go_default_library",
"//pkg/features:go_default_library",
"//pkg/kubelet/container/testing:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
"//staging/src/k8s.io/component-base/featuregate/testing:go_default_library",
"//vendor/github.com/google/go-cmp/cmp:go_default_library",
"//vendor/github.com/stretchr/testify/assert:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [
":package-srcs",
"//pkg/kubelet/container/testing:all-srcs",
],
tags = ["automanaged"],
visibility = ["//visibility:public"],
)

199
vendor/k8s.io/kubernetes/pkg/kubelet/container/cache.go generated vendored
View File

@ -1,199 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"sync"
"time"
"k8s.io/apimachinery/pkg/types"
)
// Cache stores the PodStatus for the pods. It represents *all* the visible
// pods/containers in the container runtime. All cache entries are at least as
// new or newer than the global timestamp (set by UpdateTime()), while
// individual entries may be slightly newer than the global timestamp. If a pod
// has no states known by the runtime, Cache returns an empty PodStatus object
// with ID populated.
//
// Cache provides two methods to retrieve the PodStatus: the non-blocking Get()
// and the blocking GetNewerThan() method. The component responsible for
// populating the cache is expected to call Delete() to explicitly free the
// cache entries.
type Cache interface {
Get(types.UID) (*PodStatus, error)
Set(types.UID, *PodStatus, error, time.Time)
// GetNewerThan is a blocking call that only returns the status
// when it is newer than the given time.
GetNewerThan(types.UID, time.Time) (*PodStatus, error)
Delete(types.UID)
UpdateTime(time.Time)
}
type data struct {
// Status of the pod.
status *PodStatus
// Error got when trying to inspect the pod.
err error
// Time when the data was last modified.
modified time.Time
}
type subRecord struct {
time time.Time
ch chan *data
}
// cache implements Cache.
type cache struct {
// Lock which guards all internal data structures.
lock sync.RWMutex
// Map that stores the pod statuses.
pods map[types.UID]*data
// A global timestamp represents how fresh the cached data is. All
// cache content is at the least newer than this timestamp. Note that the
// timestamp is nil after initialization, and will only become non-nil when
// it is ready to serve the cached statuses.
timestamp *time.Time
// Map that stores the subscriber records.
subscribers map[types.UID][]*subRecord
}
// NewCache creates a pod cache.
func NewCache() Cache {
return &cache{pods: map[types.UID]*data{}, subscribers: map[types.UID][]*subRecord{}}
}
// Get returns the PodStatus for the pod; callers are expected not to
// modify the objects returned.
func (c *cache) Get(id types.UID) (*PodStatus, error) {
c.lock.RLock()
defer c.lock.RUnlock()
d := c.get(id)
return d.status, d.err
}
func (c *cache) GetNewerThan(id types.UID, minTime time.Time) (*PodStatus, error) {
ch := c.subscribe(id, minTime)
d := <-ch
return d.status, d.err
}
// Set sets the PodStatus for the pod.
func (c *cache) Set(id types.UID, status *PodStatus, err error, timestamp time.Time) {
c.lock.Lock()
defer c.lock.Unlock()
defer c.notify(id, timestamp)
c.pods[id] = &data{status: status, err: err, modified: timestamp}
}
// Delete removes the entry of the pod.
func (c *cache) Delete(id types.UID) {
c.lock.Lock()
defer c.lock.Unlock()
delete(c.pods, id)
}
// UpdateTime modifies the global timestamp of the cache and notify
// subscribers if needed.
func (c *cache) UpdateTime(timestamp time.Time) {
c.lock.Lock()
defer c.lock.Unlock()
c.timestamp = &timestamp
// Notify all the subscribers if the condition is met.
for id := range c.subscribers {
c.notify(id, *c.timestamp)
}
}
func makeDefaultData(id types.UID) *data {
return &data{status: &PodStatus{ID: id}, err: nil}
}
func (c *cache) get(id types.UID) *data {
d, ok := c.pods[id]
if !ok {
// Cache should store *all* pod/container information known by the
// container runtime. A cache miss indicates that there are no states
// regarding the pod last time we queried the container runtime.
// What this *really* means is that there are no visible pod/containers
// associated with this pod. Simply return an default (mostly empty)
// PodStatus to reflect this.
return makeDefaultData(id)
}
return d
}
// getIfNewerThan returns the data it is newer than the given time.
// Otherwise, it returns nil. The caller should acquire the lock.
func (c *cache) getIfNewerThan(id types.UID, minTime time.Time) *data {
d, ok := c.pods[id]
globalTimestampIsNewer := (c.timestamp != nil && c.timestamp.After(minTime))
if !ok && globalTimestampIsNewer {
// Status is not cached, but the global timestamp is newer than
// minTime, return the default status.
return makeDefaultData(id)
}
if ok && (d.modified.After(minTime) || globalTimestampIsNewer) {
// Status is cached, return status if either of the following is true.
// * status was modified after minTime
// * the global timestamp of the cache is newer than minTime.
return d
}
// The pod status is not ready.
return nil
}
// notify sends notifications for pod with the given id, if the requirements
// are met. Note that the caller should acquire the lock.
func (c *cache) notify(id types.UID, timestamp time.Time) {
list, ok := c.subscribers[id]
if !ok {
// No one to notify.
return
}
newList := []*subRecord{}
for i, r := range list {
if timestamp.Before(r.time) {
// Doesn't meet the time requirement; keep the record.
newList = append(newList, list[i])
continue
}
r.ch <- c.get(id)
close(r.ch)
}
if len(newList) == 0 {
delete(c.subscribers, id)
} else {
c.subscribers[id] = newList
}
}
func (c *cache) subscribe(id types.UID, timestamp time.Time) chan *data {
ch := make(chan *data, 1)
c.lock.Lock()
defer c.lock.Unlock()
d := c.getIfNewerThan(id, timestamp)
if d != nil {
// If the cache entry is ready, send the data and return immediately.
ch <- d
return ch
}
// Add the subscription record.
c.subscribers[id] = append(c.subscribers[id], &subRecord{time: timestamp, ch: ch})
return ch
}

87
vendor/k8s.io/kubernetes/pkg/kubelet/container/container_gc.go generated vendored
View File

@ -1,87 +0,0 @@
/*
Copyright 2014 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"fmt"
"time"
"k8s.io/klog"
)
// Specified a policy for garbage collecting containers.
type ContainerGCPolicy struct {
// Minimum age at which a container can be garbage collected, zero for no limit.
MinAge time.Duration
// Max number of dead containers any single pod (UID, container name) pair is
// allowed to have, less than zero for no limit.
MaxPerPodContainer int
// Max number of total dead containers, less than zero for no limit.
MaxContainers int
}
// Manages garbage collection of dead containers.
//
// Implementation is thread-compatible.
type ContainerGC interface {
// Garbage collect containers.
GarbageCollect() error
// Deletes all unused containers, including containers belonging to pods that are terminated but not deleted
DeleteAllUnusedContainers() error
}
// SourcesReadyProvider knows how to determine if configuration sources are ready
type SourcesReadyProvider interface {
// AllReady returns true if the currently configured sources have all been seen.
AllReady() bool
}
// TODO(vmarmol): Preferentially remove pod infra containers.
type realContainerGC struct {
// Container runtime
runtime Runtime
// Policy for garbage collection.
policy ContainerGCPolicy
// sourcesReadyProvider provides the readiness of kubelet configuration sources.
sourcesReadyProvider SourcesReadyProvider
}
// New ContainerGC instance with the specified policy.
func NewContainerGC(runtime Runtime, policy ContainerGCPolicy, sourcesReadyProvider SourcesReadyProvider) (ContainerGC, error) {
if policy.MinAge < 0 {
return nil, fmt.Errorf("invalid minimum garbage collection age: %v", policy.MinAge)
}
return &realContainerGC{
runtime: runtime,
policy: policy,
sourcesReadyProvider: sourcesReadyProvider,
}, nil
}
func (cgc *realContainerGC) GarbageCollect() error {
return cgc.runtime.GarbageCollect(cgc.policy, cgc.sourcesReadyProvider.AllReady(), false)
}
func (cgc *realContainerGC) DeleteAllUnusedContainers() error {
klog.Infof("attempting to delete unused containers")
return cgc.runtime.GarbageCollect(cgc.policy, cgc.sourcesReadyProvider.AllReady(), true)
}

60
vendor/k8s.io/kubernetes/pkg/kubelet/container/container_reference_manager.go generated vendored
View File

@ -1,60 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"sync"
"k8s.io/api/core/v1"
)
// RefManager manages the references for the containers.
// The references are used for reporting events such as creation,
// failure, etc. This manager is thread-safe, no locks are necessary
// for the caller.
type RefManager struct {
sync.RWMutex
containerIDToRef map[ContainerID]*v1.ObjectReference
}
// NewRefManager creates and returns a container reference manager
// with empty contents.
func NewRefManager() *RefManager {
return &RefManager{containerIDToRef: make(map[ContainerID]*v1.ObjectReference)}
}
// SetRef stores a reference to a pod's container, associating it with the given container ID.
func (c *RefManager) SetRef(id ContainerID, ref *v1.ObjectReference) {
c.Lock()
defer c.Unlock()
c.containerIDToRef[id] = ref
}
// ClearRef forgets the given container id and its associated container reference.
func (c *RefManager) ClearRef(id ContainerID) {
c.Lock()
defer c.Unlock()
delete(c.containerIDToRef, id)
}
// GetRef returns the container reference of the given ID, or (nil, false) if none is stored.
func (c *RefManager) GetRef(id ContainerID) (ref *v1.ObjectReference, ok bool) {
c.RLock()
defer c.RUnlock()
ref, ok = c.containerIDToRef[id]
return ref, ok
}

350
vendor/k8s.io/kubernetes/pkg/kubelet/container/helpers.go generated vendored
View File

@ -1,350 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"encoding/json"
"fmt"
"hash/fnv"
"strings"
"k8s.io/klog"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/client-go/tools/record"
runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
podutil "k8s.io/kubernetes/pkg/api/v1/pod"
"k8s.io/kubernetes/pkg/kubelet/util/format"
hashutil "k8s.io/kubernetes/pkg/util/hash"
"k8s.io/kubernetes/third_party/forked/golang/expansion"
utilsnet "k8s.io/utils/net"
)
// HandlerRunner runs a lifecycle handler for a container.
type HandlerRunner interface {
Run(containerID ContainerID, pod *v1.Pod, container *v1.Container, handler *v1.Handler) (string, error)
}
// RuntimeHelper wraps kubelet to make container runtime
// able to get necessary informations like the RunContainerOptions, DNS settings, Host IP.
type RuntimeHelper interface {
GenerateRunContainerOptions(pod *v1.Pod, container *v1.Container, podIP string, podIPs []string) (contOpts *RunContainerOptions, cleanupAction func(), err error)
GetPodDNS(pod *v1.Pod) (dnsConfig *runtimeapi.DNSConfig, err error)
// GetPodCgroupParent returns the CgroupName identifier, and its literal cgroupfs form on the host
// of a pod.
GetPodCgroupParent(pod *v1.Pod) string
GetPodDir(podUID types.UID) string
GeneratePodHostNameAndDomain(pod *v1.Pod) (hostname string, hostDomain string, err error)
// GetExtraSupplementalGroupsForPod returns a list of the extra
// supplemental groups for the Pod. These extra supplemental groups come
// from annotations on persistent volumes that the pod depends on.
GetExtraSupplementalGroupsForPod(pod *v1.Pod) []int64
}
// ShouldContainerBeRestarted checks whether a container needs to be restarted.
// TODO(yifan): Think about how to refactor this.
func ShouldContainerBeRestarted(container *v1.Container, pod *v1.Pod, podStatus *PodStatus) bool {
// Once a pod has been marked deleted, it should not be restarted
if pod.DeletionTimestamp != nil {
return false
}
// Get latest container status.
status := podStatus.FindContainerStatusByName(container.Name)
// If the container was never started before, we should start it.
// NOTE(random-liu): If all historical containers were GC'd, we'll also return true here.
if status == nil {
return true
}
// Check whether container is running
if status.State == ContainerStateRunning {
return false
}
// Always restart container in the unknown, or in the created state.
if status.State == ContainerStateUnknown || status.State == ContainerStateCreated {
return true
}
// Check RestartPolicy for dead container
if pod.Spec.RestartPolicy == v1.RestartPolicyNever {
klog.V(4).Infof("Already ran container %q of pod %q, do nothing", container.Name, format.Pod(pod))
return false
}
if pod.Spec.RestartPolicy == v1.RestartPolicyOnFailure {
// Check the exit code.
if status.ExitCode == 0 {
klog.V(4).Infof("Already successfully ran container %q of pod %q, do nothing", container.Name, format.Pod(pod))
return false
}
}
return true
}
// HashContainer returns the hash of the container. It is used to compare
// the running container with its desired spec.
// Note: remember to update hashValues in container_hash_test.go as well.
func HashContainer(container *v1.Container) uint64 {
hash := fnv.New32a()
// Omit nil or empty field when calculating hash value
// Please see https://github.com/kubernetes/kubernetes/issues/53644
containerJson, _ := json.Marshal(container)
hashutil.DeepHashObject(hash, containerJson)
return uint64(hash.Sum32())
}
// EnvVarsToMap constructs a map of environment name to value from a slice
// of env vars.
func EnvVarsToMap(envs []EnvVar) map[string]string {
result := map[string]string{}
for _, env := range envs {
result[env.Name] = env.Value
}
return result
}
// V1EnvVarsToMap constructs a map of environment name to value from a slice
// of env vars.
func V1EnvVarsToMap(envs []v1.EnvVar) map[string]string {
result := map[string]string{}
for _, env := range envs {
result[env.Name] = env.Value
}
return result
}
// ExpandContainerCommandOnlyStatic substitutes only static environment variable values from the
// container environment definitions. This does *not* include valueFrom substitutions.
// TODO: callers should use ExpandContainerCommandAndArgs with a fully resolved list of environment.
func ExpandContainerCommandOnlyStatic(containerCommand []string, envs []v1.EnvVar) (command []string) {
mapping := expansion.MappingFuncFor(V1EnvVarsToMap(envs))
if len(containerCommand) != 0 {
for _, cmd := range containerCommand {
command = append(command, expansion.Expand(cmd, mapping))
}
}
return command
}
func ExpandContainerVolumeMounts(mount v1.VolumeMount, envs []EnvVar) (string, error) {
envmap := EnvVarsToMap(envs)
missingKeys := sets.NewString()
expanded := expansion.Expand(mount.SubPathExpr, func(key string) string {
value, ok := envmap[key]
if !ok || len(value) == 0 {
missingKeys.Insert(key)
}
return value
})
if len(missingKeys) > 0 {
return "", fmt.Errorf("missing value for %s", strings.Join(missingKeys.List(), ", "))
}
return expanded, nil
}
func ExpandContainerCommandAndArgs(container *v1.Container, envs []EnvVar) (command []string, args []string) {
mapping := expansion.MappingFuncFor(EnvVarsToMap(envs))
if len(container.Command) != 0 {
for _, cmd := range container.Command {
command = append(command, expansion.Expand(cmd, mapping))
}
}
if len(container.Args) != 0 {
for _, arg := range container.Args {
args = append(args, expansion.Expand(arg, mapping))
}
}
return command, args
}
// Create an event recorder to record object's event except implicitly required container's, like infra container.
func FilterEventRecorder(recorder record.EventRecorder) record.EventRecorder {
return &innerEventRecorder{
recorder: recorder,
}
}
type innerEventRecorder struct {
recorder record.EventRecorder
}
func (irecorder *innerEventRecorder) shouldRecordEvent(object runtime.Object) (*v1.ObjectReference, bool) {
if object == nil {
return nil, false
}
if ref, ok := object.(*v1.ObjectReference); ok {
if !strings.HasPrefix(ref.FieldPath, ImplicitContainerPrefix) {
return ref, true
}
}
return nil, false
}
func (irecorder *innerEventRecorder) Event(object runtime.Object, eventtype, reason, message string) {
if ref, ok := irecorder.shouldRecordEvent(object); ok {
irecorder.recorder.Event(ref, eventtype, reason, message)
}
}
func (irecorder *innerEventRecorder) Eventf(object runtime.Object, eventtype, reason, messageFmt string, args ...interface{}) {
if ref, ok := irecorder.shouldRecordEvent(object); ok {
irecorder.recorder.Eventf(ref, eventtype, reason, messageFmt, args...)
}
}
func (irecorder *innerEventRecorder) AnnotatedEventf(object runtime.Object, annotations map[string]string, eventtype, reason, messageFmt string, args ...interface{}) {
if ref, ok := irecorder.shouldRecordEvent(object); ok {
irecorder.recorder.AnnotatedEventf(ref, annotations, eventtype, reason, messageFmt, args...)
}
}
// Pod must not be nil.
func IsHostNetworkPod(pod *v1.Pod) bool {
return pod.Spec.HostNetwork
}
// TODO(random-liu): Convert PodStatus to running Pod, should be deprecated soon
func ConvertPodStatusToRunningPod(runtimeName string, podStatus *PodStatus) Pod {
runningPod := Pod{
ID: podStatus.ID,
Name: podStatus.Name,
Namespace: podStatus.Namespace,
}
for _, containerStatus := range podStatus.ContainerStatuses {
if containerStatus.State != ContainerStateRunning {
continue
}
container := &Container{
ID: containerStatus.ID,
Name: containerStatus.Name,
Image: containerStatus.Image,
ImageID: containerStatus.ImageID,
Hash: containerStatus.Hash,
State: containerStatus.State,
}
runningPod.Containers = append(runningPod.Containers, container)
}
// Populate sandboxes in kubecontainer.Pod
for _, sandbox := range podStatus.SandboxStatuses {
runningPod.Sandboxes = append(runningPod.Sandboxes, &Container{
ID: ContainerID{Type: runtimeName, ID: sandbox.Id},
State: SandboxToContainerState(sandbox.State),
})
}
return runningPod
}
// SandboxToContainerState converts runtimeapi.PodSandboxState to
// kubecontainer.ContainerState.
// This is only needed because we need to return sandboxes as if they were
// kubecontainer.Containers to avoid substantial changes to PLEG.
// TODO: Remove this once it becomes obsolete.
func SandboxToContainerState(state runtimeapi.PodSandboxState) ContainerState {
switch state {
case runtimeapi.PodSandboxState_SANDBOX_READY:
return ContainerStateRunning
case runtimeapi.PodSandboxState_SANDBOX_NOTREADY:
return ContainerStateExited
}
return ContainerStateUnknown
}
// FormatPod returns a string representing a pod in a human readable format,
// with pod UID as part of the string.
func FormatPod(pod *Pod) string {
// Use underscore as the delimiter because it is not allowed in pod name
// (DNS subdomain format), while allowed in the container name format.
return fmt.Sprintf("%s_%s(%s)", pod.Name, pod.Namespace, pod.ID)
}
// GetContainerSpec gets the container spec by containerName.
func GetContainerSpec(pod *v1.Pod, containerName string) *v1.Container {
var containerSpec *v1.Container
podutil.VisitContainers(&pod.Spec, func(c *v1.Container) bool {
if containerName == c.Name {
containerSpec = c
return false
}
return true
})
return containerSpec
}
// HasPrivilegedContainer returns true if any of the containers in the pod are privileged.
func HasPrivilegedContainer(pod *v1.Pod) bool {
var hasPrivileged bool
podutil.VisitContainers(&pod.Spec, func(c *v1.Container) bool {
if c.SecurityContext != nil && c.SecurityContext.Privileged != nil && *c.SecurityContext.Privileged {
hasPrivileged = true
return false
}
return true
})
return hasPrivileged
}
// MakePortMappings creates internal port mapping from api port mapping.
func MakePortMappings(container *v1.Container) (ports []PortMapping) {
names := make(map[string]struct{})
for _, p := range container.Ports {
pm := PortMapping{
HostPort: int(p.HostPort),
ContainerPort: int(p.ContainerPort),
Protocol: p.Protocol,
HostIP: p.HostIP,
}
// We need to determine the address family this entry applies to. We do this to ensure
// duplicate containerPort / protocol rules work across different address families.
// https://github.com/kubernetes/kubernetes/issues/82373
family := "any"
if p.HostIP != "" {
if utilsnet.IsIPv6String(p.HostIP) {
family = "v6"
} else {
family = "v4"
}
}
// We need to create some default port name if it's not specified, since
// this is necessary for the dockershim CNI driver.
// https://github.com/kubernetes/kubernetes/pull/82374#issuecomment-529496888
if p.Name == "" {
pm.Name = fmt.Sprintf("%s-%s-%s:%d", container.Name, family, p.Protocol, p.ContainerPort)
} else {
pm.Name = fmt.Sprintf("%s-%s", container.Name, p.Name)
}
// Protect against a port name being used more than once in a container.
if _, ok := names[pm.Name]; ok {
klog.Warningf("Port name conflicted, %q is defined more than once", pm.Name)
continue
}
ports = append(ports, pm)
names[pm.Name] = struct{}{}
}
return
}

107
vendor/k8s.io/kubernetes/pkg/kubelet/container/os.go generated vendored
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@ -1,107 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"io/ioutil"
"os"
"path/filepath"
"time"
)
// OSInterface collects system level operations that need to be mocked out
// during tests.
type OSInterface interface {
MkdirAll(path string, perm os.FileMode) error
Symlink(oldname string, newname string) error
Stat(path string) (os.FileInfo, error)
Remove(path string) error
RemoveAll(path string) error
Create(path string) (*os.File, error)
Chmod(path string, perm os.FileMode) error
Hostname() (name string, err error)
Chtimes(path string, atime time.Time, mtime time.Time) error
Pipe() (r *os.File, w *os.File, err error)
ReadDir(dirname string) ([]os.FileInfo, error)
Glob(pattern string) ([]string, error)
}
// RealOS is used to dispatch the real system level operations.
type RealOS struct{}
// MkdirAll will call os.MkdirAll to create a directory.
func (RealOS) MkdirAll(path string, perm os.FileMode) error {
return os.MkdirAll(path, perm)
}
// Symlink will call os.Symlink to create a symbolic link.
func (RealOS) Symlink(oldname string, newname string) error {
return os.Symlink(oldname, newname)
}
// Stat will call os.Stat to get the FileInfo for a given path
func (RealOS) Stat(path string) (os.FileInfo, error) {
return os.Stat(path)
}
// Remove will call os.Remove to remove the path.
func (RealOS) Remove(path string) error {
return os.Remove(path)
}
// RemoveAll will call os.RemoveAll to remove the path and its children.
func (RealOS) RemoveAll(path string) error {
return os.RemoveAll(path)
}
// Create will call os.Create to create and return a file
// at path.
func (RealOS) Create(path string) (*os.File, error) {
return os.Create(path)
}
// Chmod will change the permissions on the specified path or return
// an error.
func (RealOS) Chmod(path string, perm os.FileMode) error {
return os.Chmod(path, perm)
}
// Hostname will call os.Hostname to return the hostname.
func (RealOS) Hostname() (name string, err error) {
return os.Hostname()
}
// Chtimes will call os.Chtimes to change the atime and mtime of the path
func (RealOS) Chtimes(path string, atime time.Time, mtime time.Time) error {
return os.Chtimes(path, atime, mtime)
}
// Pipe will call os.Pipe to return a connected pair of pipe.
func (RealOS) Pipe() (r *os.File, w *os.File, err error) {
return os.Pipe()
}
// ReadDir will call ioutil.ReadDir to return the files under the directory.
func (RealOS) ReadDir(dirname string) ([]os.FileInfo, error) {
return ioutil.ReadDir(dirname)
}
// Glob will call filepath.Glob to return the names of all files matching
// pattern.
func (RealOS) Glob(pattern string) ([]string, error) {
return filepath.Glob(pattern)
}

84
vendor/k8s.io/kubernetes/pkg/kubelet/container/ref.go generated vendored
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@ -1,84 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"fmt"
"k8s.io/api/core/v1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
ref "k8s.io/client-go/tools/reference"
"k8s.io/kubernetes/pkg/api/legacyscheme"
"k8s.io/kubernetes/pkg/features"
)
var ImplicitContainerPrefix string = "implicitly required container "
// GenerateContainerRef returns an *v1.ObjectReference which references the given container
// within the given pod. Returns an error if the reference can't be constructed or the
// container doesn't actually belong to the pod.
//
// This function will return an error if the provided Pod does not have a selfLink,
// but we expect selfLink to be populated at all call sites for the function.
func GenerateContainerRef(pod *v1.Pod, container *v1.Container) (*v1.ObjectReference, error) {
fieldPath, err := fieldPath(pod, container)
if err != nil {
// TODO: figure out intelligent way to refer to containers that we implicitly
// start (like the pod infra container). This is not a good way, ugh.
fieldPath = ImplicitContainerPrefix + container.Name
}
ref, err := ref.GetPartialReference(legacyscheme.Scheme, pod, fieldPath)
if err != nil {
return nil, err
}
return ref, nil
}
// fieldPath returns a fieldPath locating container within pod.
// Returns an error if the container isn't part of the pod.
func fieldPath(pod *v1.Pod, container *v1.Container) (string, error) {
for i := range pod.Spec.Containers {
here := &pod.Spec.Containers[i]
if here.Name == container.Name {
if here.Name == "" {
return fmt.Sprintf("spec.containers[%d]", i), nil
}
return fmt.Sprintf("spec.containers{%s}", here.Name), nil
}
}
for i := range pod.Spec.InitContainers {
here := &pod.Spec.InitContainers[i]
if here.Name == container.Name {
if here.Name == "" {
return fmt.Sprintf("spec.initContainers[%d]", i), nil
}
return fmt.Sprintf("spec.initContainers{%s}", here.Name), nil
}
}
if utilfeature.DefaultFeatureGate.Enabled(features.EphemeralContainers) {
for i := range pod.Spec.EphemeralContainers {
here := &pod.Spec.EphemeralContainers[i]
if here.Name == container.Name {
if here.Name == "" {
return fmt.Sprintf("spec.ephemeralContainers[%d]", i), nil
}
return fmt.Sprintf("spec.ephemeralContainers{%s}", here.Name), nil
}
}
}
return "", fmt.Errorf("container %q not found in pod %s/%s", container.Name, pod.Namespace, pod.Name)
}

42
vendor/k8s.io/kubernetes/pkg/kubelet/container/resize.go generated vendored
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@ -1,42 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"k8s.io/apimachinery/pkg/util/runtime"
"k8s.io/client-go/tools/remotecommand"
)
// handleResizing spawns a goroutine that processes the resize channel, calling resizeFunc for each
// remotecommand.TerminalSize received from the channel. The resize channel must be closed elsewhere to stop the
// goroutine.
func HandleResizing(resize <-chan remotecommand.TerminalSize, resizeFunc func(size remotecommand.TerminalSize)) {
if resize == nil {
return
}
go func() {
defer runtime.HandleCrash()
for size := range resize {
if size.Height < 1 || size.Width < 1 {
continue
}
resizeFunc(size)
}
}()
}

639
vendor/k8s.io/kubernetes/pkg/kubelet/container/runtime.go generated vendored
View File

@ -1,639 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"context"
"fmt"
"io"
"net/url"
"reflect"
"strings"
"time"
"k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/tools/remotecommand"
"k8s.io/client-go/util/flowcontrol"
runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
"k8s.io/klog"
"k8s.io/kubernetes/pkg/volume"
)
type Version interface {
// Compare compares two versions of the runtime. On success it returns -1
// if the version is less than the other, 1 if it is greater than the other,
// or 0 if they are equal.
Compare(other string) (int, error)
// String returns a string that represents the version.
String() string
}
// ImageSpec is an internal representation of an image. Currently, it wraps the
// value of a Container's Image field, but in the future it will include more detailed
// information about the different image types.
type ImageSpec struct {
Image string
}
// ImageStats contains statistics about all the images currently available.
type ImageStats struct {
// Total amount of storage consumed by existing images.
TotalStorageBytes uint64
}
// Runtime interface defines the interfaces that should be implemented
// by a container runtime.
// Thread safety is required from implementations of this interface.
type Runtime interface {
// Type returns the type of the container runtime.
Type() string
//SupportsSingleFileMapping returns whether the container runtime supports single file mappings or not.
SupportsSingleFileMapping() bool
// Version returns the version information of the container runtime.
Version() (Version, error)
// APIVersion returns the cached API version information of the container
// runtime. Implementation is expected to update this cache periodically.
// This may be different from the runtime engine's version.
// TODO(random-liu): We should fold this into Version()
APIVersion() (Version, error)
// Status returns the status of the runtime. An error is returned if the Status
// function itself fails, nil otherwise.
Status() (*RuntimeStatus, error)
// GetPods returns a list of containers grouped by pods. The boolean parameter
// specifies whether the runtime returns all containers including those already
// exited and dead containers (used for garbage collection).
GetPods(all bool) ([]*Pod, error)
// GarbageCollect removes dead containers using the specified container gc policy
// If allSourcesReady is not true, it means that kubelet doesn't have the
// complete list of pods from all avialble sources (e.g., apiserver, http,
// file). In this case, garbage collector should refrain itself from aggressive
// behavior such as removing all containers of unrecognized pods (yet).
// If evictNonDeletedPods is set to true, containers and sandboxes belonging to pods
// that are terminated, but not deleted will be evicted. Otherwise, only deleted pods will be GC'd.
// TODO: Revisit this method and make it cleaner.
GarbageCollect(gcPolicy ContainerGCPolicy, allSourcesReady bool, evictNonDeletedPods bool) error
// Syncs the running pod into the desired pod.
SyncPod(pod *v1.Pod, podStatus *PodStatus, pullSecrets []v1.Secret, backOff *flowcontrol.Backoff) PodSyncResult
// KillPod kills all the containers of a pod. Pod may be nil, running pod must not be.
// TODO(random-liu): Return PodSyncResult in KillPod.
// gracePeriodOverride if specified allows the caller to override the pod default grace period.
// only hard kill paths are allowed to specify a gracePeriodOverride in the kubelet in order to not corrupt user data.
// it is useful when doing SIGKILL for hard eviction scenarios, or max grace period during soft eviction scenarios.
KillPod(pod *v1.Pod, runningPod Pod, gracePeriodOverride *int64) error
// GetPodStatus retrieves the status of the pod, including the
// information of all containers in the pod that are visible in Runtime.
GetPodStatus(uid types.UID, name, namespace string) (*PodStatus, error)
// TODO(vmarmol): Unify pod and containerID args.
// GetContainerLogs returns logs of a specific container. By
// default, it returns a snapshot of the container log. Set 'follow' to true to
// stream the log. Set 'follow' to false and specify the number of lines (e.g.
// "100" or "all") to tail the log.
GetContainerLogs(ctx context.Context, pod *v1.Pod, containerID ContainerID, logOptions *v1.PodLogOptions, stdout, stderr io.Writer) (err error)
// Delete a container. If the container is still running, an error is returned.
DeleteContainer(containerID ContainerID) error
// ImageService provides methods to image-related methods.
ImageService
// UpdatePodCIDR sends a new podCIDR to the runtime.
// This method just proxies a new runtimeConfig with the updated
// CIDR value down to the runtime shim.
UpdatePodCIDR(podCIDR string) error
}
// StreamingRuntime is the interface implemented by runtimes that handle the serving of the
// streaming calls (exec/attach/port-forward) themselves. In this case, Kubelet should redirect to
// the runtime server.
type StreamingRuntime interface {
GetExec(id ContainerID, cmd []string, stdin, stdout, stderr, tty bool) (*url.URL, error)
GetAttach(id ContainerID, stdin, stdout, stderr, tty bool) (*url.URL, error)
GetPortForward(podName, podNamespace string, podUID types.UID, ports []int32) (*url.URL, error)
}
type ImageService interface {
// PullImage pulls an image from the network to local storage using the supplied
// secrets if necessary. It returns a reference (digest or ID) to the pulled image.
PullImage(image ImageSpec, pullSecrets []v1.Secret, podSandboxConfig *runtimeapi.PodSandboxConfig) (string, error)
// GetImageRef gets the reference (digest or ID) of the image which has already been in
// the local storage. It returns ("", nil) if the image isn't in the local storage.
GetImageRef(image ImageSpec) (string, error)
// Gets all images currently on the machine.
ListImages() ([]Image, error)
// Removes the specified image.
RemoveImage(image ImageSpec) error
// Returns Image statistics.
ImageStats() (*ImageStats, error)
}
type ContainerAttacher interface {
AttachContainer(id ContainerID, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool, resize <-chan remotecommand.TerminalSize) (err error)
}
type ContainerCommandRunner interface {
// RunInContainer synchronously executes the command in the container, and returns the output.
// If the command completes with a non-0 exit code, a k8s.io/utils/exec.ExitError will be returned.
RunInContainer(id ContainerID, cmd []string, timeout time.Duration) ([]byte, error)
}
// Pod is a group of containers.
type Pod struct {
// The ID of the pod, which can be used to retrieve a particular pod
// from the pod list returned by GetPods().
ID types.UID
// The name and namespace of the pod, which is readable by human.
Name string
Namespace string
// List of containers that belongs to this pod. It may contain only
// running containers, or mixed with dead ones (when GetPods(true)).
Containers []*Container
// List of sandboxes associated with this pod. The sandboxes are converted
// to Container temporariliy to avoid substantial changes to other
// components. This is only populated by kuberuntime.
// TODO: use the runtimeApi.PodSandbox type directly.
Sandboxes []*Container
}
// PodPair contains both runtime#Pod and api#Pod
type PodPair struct {
// APIPod is the v1.Pod
APIPod *v1.Pod
// RunningPod is the pod defined in pkg/kubelet/container/runtime#Pod
RunningPod *Pod
}
// ContainerID is a type that identifies a container.
type ContainerID struct {
// The type of the container runtime. e.g. 'docker'.
Type string
// The identification of the container, this is comsumable by
// the underlying container runtime. (Note that the container
// runtime interface still takes the whole struct as input).
ID string
}
func BuildContainerID(typ, ID string) ContainerID {
return ContainerID{Type: typ, ID: ID}
}
// Convenience method for creating a ContainerID from an ID string.
func ParseContainerID(containerID string) ContainerID {
var id ContainerID
if err := id.ParseString(containerID); err != nil {
klog.Error(err)
}
return id
}
func (c *ContainerID) ParseString(data string) error {
// Trim the quotes and split the type and ID.
parts := strings.Split(strings.Trim(data, "\""), "://")
if len(parts) != 2 {
return fmt.Errorf("invalid container ID: %q", data)
}
c.Type, c.ID = parts[0], parts[1]
return nil
}
func (c *ContainerID) String() string {
return fmt.Sprintf("%s://%s", c.Type, c.ID)
}
func (c *ContainerID) IsEmpty() bool {
return *c == ContainerID{}
}
func (c *ContainerID) MarshalJSON() ([]byte, error) {
return []byte(fmt.Sprintf("%q", c.String())), nil
}
func (c *ContainerID) UnmarshalJSON(data []byte) error {
return c.ParseString(string(data))
}
// DockerID is an ID of docker container. It is a type to make it clear when we're working with docker container Ids
type DockerID string
func (id DockerID) ContainerID() ContainerID {
return ContainerID{
Type: "docker",
ID: string(id),
}
}
type ContainerState string
const (
ContainerStateCreated ContainerState = "created"
ContainerStateRunning ContainerState = "running"
ContainerStateExited ContainerState = "exited"
// This unknown encompasses all the states that we currently don't care.
ContainerStateUnknown ContainerState = "unknown"
)
// Container provides the runtime information for a container, such as ID, hash,
// state of the container.
type Container struct {
// The ID of the container, used by the container runtime to identify
// a container.
ID ContainerID
// The name of the container, which should be the same as specified by
// v1.Container.
Name string
// The image name of the container, this also includes the tag of the image,
// the expected form is "NAME:TAG".
Image string
// The id of the image used by the container.
ImageID string
// Hash of the container, used for comparison. Optional for containers
// not managed by kubelet.
Hash uint64
// State is the state of the container.
State ContainerState
}
// PodStatus represents the status of the pod and its containers.
// v1.PodStatus can be derived from examining PodStatus and v1.Pod.
type PodStatus struct {
// ID of the pod.
ID types.UID
// Name of the pod.
Name string
// Namespace of the pod.
Namespace string
// All IPs assigned to this pod
IPs []string
// Status of containers in the pod.
ContainerStatuses []*ContainerStatus
// Status of the pod sandbox.
// Only for kuberuntime now, other runtime may keep it nil.
SandboxStatuses []*runtimeapi.PodSandboxStatus
}
// ContainerStatus represents the status of a container.
type ContainerStatus struct {
// ID of the container.
ID ContainerID
// Name of the container.
Name string
// Status of the container.
State ContainerState
// Creation time of the container.
CreatedAt time.Time
// Start time of the container.
StartedAt time.Time
// Finish time of the container.
FinishedAt time.Time
// Exit code of the container.
ExitCode int
// Name of the image, this also includes the tag of the image,
// the expected form is "NAME:TAG".
Image string
// ID of the image.
ImageID string
// Hash of the container, used for comparison.
Hash uint64
// Number of times that the container has been restarted.
RestartCount int
// A string explains why container is in such a status.
Reason string
// Message written by the container before exiting (stored in
// TerminationMessagePath).
Message string
}
// FindContainerStatusByName returns container status in the pod status with the given name.
// When there are multiple containers' statuses with the same name, the first match will be returned.
func (podStatus *PodStatus) FindContainerStatusByName(containerName string) *ContainerStatus {
for _, containerStatus := range podStatus.ContainerStatuses {
if containerStatus.Name == containerName {
return containerStatus
}
}
return nil
}
// Get container status of all the running containers in a pod
func (podStatus *PodStatus) GetRunningContainerStatuses() []*ContainerStatus {
runningContainerStatuses := []*ContainerStatus{}
for _, containerStatus := range podStatus.ContainerStatuses {
if containerStatus.State == ContainerStateRunning {
runningContainerStatuses = append(runningContainerStatuses, containerStatus)
}
}
return runningContainerStatuses
}
// Basic information about a container image.
type Image struct {
// ID of the image.
ID string
// Other names by which this image is known.
RepoTags []string
// Digests by which this image is known.
RepoDigests []string
// The size of the image in bytes.
Size int64
}
type EnvVar struct {
Name string
Value string
}
type Annotation struct {
Name string
Value string
}
type Mount struct {
// Name of the volume mount.
// TODO(yifan): Remove this field, as this is not representing the unique name of the mount,
// but the volume name only.
Name string
// Path of the mount within the container.
ContainerPath string
// Path of the mount on the host.
HostPath string
// Whether the mount is read-only.
ReadOnly bool
// Whether the mount needs SELinux relabeling
SELinuxRelabel bool
// Requested propagation mode
Propagation runtimeapi.MountPropagation
}
type PortMapping struct {
// Name of the port mapping
Name string
// Protocol of the port mapping.
Protocol v1.Protocol
// The port number within the container.
ContainerPort int
// The port number on the host.
HostPort int
// The host IP.
HostIP string
}
type DeviceInfo struct {
// Path on host for mapping
PathOnHost string
// Path in Container to map
PathInContainer string
// Cgroup permissions
Permissions string
}
// RunContainerOptions specify the options which are necessary for running containers
type RunContainerOptions struct {
// The environment variables list.
Envs []EnvVar
// The mounts for the containers.
Mounts []Mount
// The host devices mapped into the containers.
Devices []DeviceInfo
// The port mappings for the containers.
PortMappings []PortMapping
// The annotations for the container
// These annotations are generated by other components (i.e.,
// not users). Currently, only device plugins populate the annotations.
Annotations []Annotation
// If the container has specified the TerminationMessagePath, then
// this directory will be used to create and mount the log file to
// container.TerminationMessagePath
PodContainerDir string
// The type of container rootfs
ReadOnly bool
// hostname for pod containers
Hostname string
// EnableHostUserNamespace sets userns=host when users request host namespaces (pid, ipc, net),
// are using non-namespaced capabilities (mknod, sys_time, sys_module), the pod contains a privileged container,
// or using host path volumes.
// This should only be enabled when the container runtime is performing user remapping AND if the
// experimental behavior is desired.
EnableHostUserNamespace bool
}
// VolumeInfo contains information about the volume.
type VolumeInfo struct {
// Mounter is the volume's mounter
Mounter volume.Mounter
// BlockVolumeMapper is the Block volume's mapper
BlockVolumeMapper volume.BlockVolumeMapper
// SELinuxLabeled indicates whether this volume has had the
// pod's SELinux label applied to it or not
SELinuxLabeled bool
// Whether the volume permission is set to read-only or not
// This value is passed from volume.spec
ReadOnly bool
// Inner volume spec name, which is the PV name if used, otherwise
// it is the same as the outer volume spec name.
InnerVolumeSpecName string
}
type VolumeMap map[string]VolumeInfo
// RuntimeConditionType is the types of required runtime conditions.
type RuntimeConditionType string
const (
// RuntimeReady means the runtime is up and ready to accept basic containers.
RuntimeReady RuntimeConditionType = "RuntimeReady"
// NetworkReady means the runtime network is up and ready to accept containers which require network.
NetworkReady RuntimeConditionType = "NetworkReady"
)
// RuntimeStatus contains the status of the runtime.
type RuntimeStatus struct {
// Conditions is an array of current observed runtime conditions.
Conditions []RuntimeCondition
}
// GetRuntimeCondition gets a specified runtime condition from the runtime status.
func (r *RuntimeStatus) GetRuntimeCondition(t RuntimeConditionType) *RuntimeCondition {
for i := range r.Conditions {
c := &r.Conditions[i]
if c.Type == t {
return c
}
}
return nil
}
// String formats the runtime status into human readable string.
func (s *RuntimeStatus) String() string {
var ss []string
for _, c := range s.Conditions {
ss = append(ss, c.String())
}
return fmt.Sprintf("Runtime Conditions: %s", strings.Join(ss, ", "))
}
// RuntimeCondition contains condition information for the runtime.
type RuntimeCondition struct {
// Type of runtime condition.
Type RuntimeConditionType
// Status of the condition, one of true/false.
Status bool
// Reason is brief reason for the condition's last transition.
Reason string
// Message is human readable message indicating details about last transition.
Message string
}
// String formats the runtime condition into human readable string.
func (c *RuntimeCondition) String() string {
return fmt.Sprintf("%s=%t reason:%s message:%s", c.Type, c.Status, c.Reason, c.Message)
}
type Pods []*Pod
// FindPodByID finds and returns a pod in the pod list by UID. It will return an empty pod
// if not found.
func (p Pods) FindPodByID(podUID types.UID) Pod {
for i := range p {
if p[i].ID == podUID {
return *p[i]
}
}
return Pod{}
}
// FindPodByFullName finds and returns a pod in the pod list by the full name.
// It will return an empty pod if not found.
func (p Pods) FindPodByFullName(podFullName string) Pod {
for i := range p {
if BuildPodFullName(p[i].Name, p[i].Namespace) == podFullName {
return *p[i]
}
}
return Pod{}
}
// FindPod combines FindPodByID and FindPodByFullName, it finds and returns a pod in the
// pod list either by the full name or the pod ID. It will return an empty pod
// if not found.
func (p Pods) FindPod(podFullName string, podUID types.UID) Pod {
if len(podFullName) > 0 {
return p.FindPodByFullName(podFullName)
}
return p.FindPodByID(podUID)
}
// FindContainerByName returns a container in the pod with the given name.
// When there are multiple containers with the same name, the first match will
// be returned.
func (p *Pod) FindContainerByName(containerName string) *Container {
for _, c := range p.Containers {
if c.Name == containerName {
return c
}
}
return nil
}
func (p *Pod) FindContainerByID(id ContainerID) *Container {
for _, c := range p.Containers {
if c.ID == id {
return c
}
}
return nil
}
func (p *Pod) FindSandboxByID(id ContainerID) *Container {
for _, c := range p.Sandboxes {
if c.ID == id {
return c
}
}
return nil
}
// ToAPIPod converts Pod to v1.Pod. Note that if a field in v1.Pod has no
// corresponding field in Pod, the field would not be populated.
func (p *Pod) ToAPIPod() *v1.Pod {
var pod v1.Pod
pod.UID = p.ID
pod.Name = p.Name
pod.Namespace = p.Namespace
for _, c := range p.Containers {
var container v1.Container
container.Name = c.Name
container.Image = c.Image
pod.Spec.Containers = append(pod.Spec.Containers, container)
}
return &pod
}
// IsEmpty returns true if the pod is empty.
func (p *Pod) IsEmpty() bool {
return reflect.DeepEqual(p, &Pod{})
}
// GetPodFullName returns a name that uniquely identifies a pod.
func GetPodFullName(pod *v1.Pod) string {
// Use underscore as the delimiter because it is not allowed in pod name
// (DNS subdomain format), while allowed in the container name format.
return pod.Name + "_" + pod.Namespace
}
// Build the pod full name from pod name and namespace.
func BuildPodFullName(name, namespace string) string {
return name + "_" + namespace
}
// Parse the pod full name.
func ParsePodFullName(podFullName string) (string, string, error) {
parts := strings.Split(podFullName, "_")
if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
return "", "", fmt.Errorf("failed to parse the pod full name %q", podFullName)
}
return parts[0], parts[1], nil
}
// Option is a functional option type for Runtime, useful for
// completely optional settings.
type Option func(Runtime)
// Sort the container statuses by creation time.
type SortContainerStatusesByCreationTime []*ContainerStatus
func (s SortContainerStatusesByCreationTime) Len() int { return len(s) }
func (s SortContainerStatusesByCreationTime) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
func (s SortContainerStatusesByCreationTime) Less(i, j int) bool {
return s[i].CreatedAt.Before(s[j].CreatedAt)
}
const (
// MaxPodTerminationMessageLogLength is the maximum bytes any one pod may have written
// as termination message output across all containers. Containers will be evenly truncated
// until output is below this limit.
MaxPodTerminationMessageLogLength = 1024 * 12
// MaxContainerTerminationMessageLength is the upper bound any one container may write to
// its termination message path. Contents above this length will be truncated.
MaxContainerTerminationMessageLength = 1024 * 4
// MaxContainerTerminationMessageLogLength is the maximum bytes any one container will
// have written to its termination message when the message is read from the logs.
MaxContainerTerminationMessageLogLength = 1024 * 2
// MaxContainerTerminationMessageLogLines is the maximum number of previous lines of
// log output that the termination message can contain.
MaxContainerTerminationMessageLogLines = 80
)

96
vendor/k8s.io/kubernetes/pkg/kubelet/container/runtime_cache.go generated vendored
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@ -1,96 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"sync"
"time"
)
var (
// TODO(yifan): Maybe set the them as parameters for NewCache().
defaultCachePeriod = time.Second * 2
)
type RuntimeCache interface {
GetPods() ([]*Pod, error)
ForceUpdateIfOlder(time.Time) error
}
type podsGetter interface {
GetPods(bool) ([]*Pod, error)
}
// NewRuntimeCache creates a container runtime cache.
func NewRuntimeCache(getter podsGetter) (RuntimeCache, error) {
return &runtimeCache{
getter: getter,
}, nil
}
// runtimeCache caches a list of pods. It records a timestamp (cacheTime) right
// before updating the pods, so the timestamp is at most as new as the pods
// (and can be slightly older). The timestamp always moves forward. Callers are
// expected not to modify the pods returned from GetPods.
type runtimeCache struct {
sync.Mutex
// The underlying container runtime used to update the cache.
getter podsGetter
// Last time when cache was updated.
cacheTime time.Time
// The content of the cache.
pods []*Pod
}
// GetPods returns the cached pods if they are not outdated; otherwise, it
// retrieves the latest pods and return them.
func (r *runtimeCache) GetPods() ([]*Pod, error) {
r.Lock()
defer r.Unlock()
if time.Since(r.cacheTime) > defaultCachePeriod {
if err := r.updateCache(); err != nil {
return nil, err
}
}
return r.pods, nil
}
func (r *runtimeCache) ForceUpdateIfOlder(minExpectedCacheTime time.Time) error {
r.Lock()
defer r.Unlock()
if r.cacheTime.Before(minExpectedCacheTime) {
return r.updateCache()
}
return nil
}
func (r *runtimeCache) updateCache() error {
pods, timestamp, err := r.getPodsWithTimestamp()
if err != nil {
return err
}
r.pods, r.cacheTime = pods, timestamp
return nil
}
// getPodsWithTimestamp records a timestamp and retrieves pods from the getter.
func (r *runtimeCache) getPodsWithTimestamp() ([]*Pod, time.Time, error) {
// Always record the timestamp before getting the pods to avoid stale pods.
timestamp := time.Now()
pods, err := r.getter.GetPods(false)
return pods, timestamp, err
}

45
vendor/k8s.io/kubernetes/pkg/kubelet/container/runtime_cache_fake.go generated vendored
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@ -1,45 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
// TestRunTimeCache embeds runtimeCache with some additional methods for testing.
// It must be declared in the container package to have visibility to runtimeCache.
// It cannot be in a "..._test.go" file in order for runtime_cache_test.go to have cross-package visibility to it.
// (cross-package declarations in test files cannot be used from dot imports if this package is vendored)
type TestRuntimeCache struct {
runtimeCache
}
func (r *TestRuntimeCache) UpdateCacheWithLock() error {
r.Lock()
defer r.Unlock()
return r.updateCache()
}
func (r *TestRuntimeCache) GetCachedPods() []*Pod {
r.Lock()
defer r.Unlock()
return r.pods
}
func NewTestRuntimeCache(getter podsGetter) *TestRuntimeCache {
return &TestRuntimeCache{
runtimeCache: runtimeCache{
getter: getter,
},
}
}

128
vendor/k8s.io/kubernetes/pkg/kubelet/container/sync_result.go generated vendored
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@ -1,128 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package container
import (
"errors"
"fmt"
utilerrors "k8s.io/apimachinery/pkg/util/errors"
)
// TODO(random-liu): We need to better organize runtime errors for introspection.
// Container Terminated and Kubelet is backing off the restart
var ErrCrashLoopBackOff = errors.New("CrashLoopBackOff")
var (
// ErrContainerNotFound returned when a container in the given pod with the
// given container name was not found, amongst those managed by the kubelet.
ErrContainerNotFound = errors.New("no matching container")
)
var (
ErrRunContainer = errors.New("RunContainerError")
ErrKillContainer = errors.New("KillContainerError")
ErrVerifyNonRoot = errors.New("VerifyNonRootError")
ErrRunInitContainer = errors.New("RunInitContainerError")
ErrCreatePodSandbox = errors.New("CreatePodSandboxError")
ErrConfigPodSandbox = errors.New("ConfigPodSandboxError")
ErrKillPodSandbox = errors.New("KillPodSandboxError")
)
var (
ErrSetupNetwork = errors.New("SetupNetworkError")
ErrTeardownNetwork = errors.New("TeardownNetworkError")
)
// SyncAction indicates different kind of actions in SyncPod() and KillPod(). Now there are only actions
// about start/kill container and setup/teardown network.
type SyncAction string
const (
StartContainer SyncAction = "StartContainer"
KillContainer SyncAction = "KillContainer"
SetupNetwork SyncAction = "SetupNetwork"
TeardownNetwork SyncAction = "TeardownNetwork"
InitContainer SyncAction = "InitContainer"
CreatePodSandbox SyncAction = "CreatePodSandbox"
ConfigPodSandbox SyncAction = "ConfigPodSandbox"
KillPodSandbox SyncAction = "KillPodSandbox"
)
// SyncResult is the result of sync action.
type SyncResult struct {
// The associated action of the result
Action SyncAction
// The target of the action, now the target can only be:
// * Container: Target should be container name
// * Network: Target is useless now, we just set it as pod full name now
Target interface{}
// Brief error reason
Error error
// Human readable error reason
Message string
}
// NewSyncResult generates new SyncResult with specific Action and Target
func NewSyncResult(action SyncAction, target interface{}) *SyncResult {
return &SyncResult{Action: action, Target: target}
}
// Fail fails the SyncResult with specific error and message
func (r *SyncResult) Fail(err error, msg string) {
r.Error, r.Message = err, msg
}
// PodSyncResult is the summary result of SyncPod() and KillPod()
type PodSyncResult struct {
// Result of different sync actions
SyncResults []*SyncResult
// Error encountered in SyncPod() and KillPod() that is not already included in SyncResults
SyncError error
}
// AddSyncResult adds multiple SyncResult to current PodSyncResult
func (p *PodSyncResult) AddSyncResult(result ...*SyncResult) {
p.SyncResults = append(p.SyncResults, result...)
}
// AddPodSyncResult merges a PodSyncResult to current one
func (p *PodSyncResult) AddPodSyncResult(result PodSyncResult) {
p.AddSyncResult(result.SyncResults...)
p.SyncError = result.SyncError
}
// Fail fails the PodSyncResult with an error occurred in SyncPod() and KillPod() itself
func (p *PodSyncResult) Fail(err error) {
p.SyncError = err
}
// Error returns an error summarizing all the errors in PodSyncResult
func (p *PodSyncResult) Error() error {
errlist := []error{}
if p.SyncError != nil {
errlist = append(errlist, fmt.Errorf("failed to SyncPod: %v", p.SyncError))
}
for _, result := range p.SyncResults {
if result.Error != nil {
errlist = append(errlist, fmt.Errorf("failed to %q for %q with %v: %q", result.Action, result.Target,
result.Error, result.Message))
}
}
return utilerrors.NewAggregate(errlist)
}

26
vendor/k8s.io/kubernetes/pkg/kubelet/dockershim/metrics/BUILD generated vendored
View File

@ -1,26 +0,0 @@
load("@io_bazel_rules_go//go:def.bzl", "go_library")
go_library(
name = "go_default_library",
srcs = ["metrics.go"],
importpath = "k8s.io/kubernetes/pkg/kubelet/dockershim/metrics",
visibility = ["//visibility:public"],
deps = [
"//staging/src/k8s.io/component-base/metrics:go_default_library",
"//staging/src/k8s.io/component-base/metrics/legacyregistry:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
visibility = ["//visibility:public"],
)

102
vendor/k8s.io/kubernetes/pkg/kubelet/dockershim/metrics/metrics.go generated vendored
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@ -1,102 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package metrics
import (
"sync"
"time"
"k8s.io/component-base/metrics"
"k8s.io/component-base/metrics/legacyregistry"
)
const (
// DockerOperationsKey is the key for docker operation metrics.
DockerOperationsKey = "docker_operations_total"
// DockerOperationsLatencyKey is the key for the operation latency metrics.
DockerOperationsLatencyKey = "docker_operations_duration_seconds"
// DockerOperationsErrorsKey is the key for the operation error metrics.
DockerOperationsErrorsKey = "docker_operations_errors_total"
// DockerOperationsTimeoutKey is the key for the operation timeout metrics.
DockerOperationsTimeoutKey = "docker_operations_timeout_total"
// Keep the "kubelet" subsystem for backward compatibility.
kubeletSubsystem = "kubelet"
)
var (
// DockerOperationsLatency collects operation latency numbers by operation
// type.
DockerOperationsLatency = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: kubeletSubsystem,
Name: DockerOperationsLatencyKey,
Help: "Latency in seconds of Docker operations. Broken down by operation type.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
// DockerOperations collects operation counts by operation type.
DockerOperations = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: kubeletSubsystem,
Name: DockerOperationsKey,
Help: "Cumulative number of Docker operations by operation type.",
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
// DockerOperationsErrors collects operation errors by operation
// type.
DockerOperationsErrors = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: kubeletSubsystem,
Name: DockerOperationsErrorsKey,
Help: "Cumulative number of Docker operation errors by operation type.",
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
// DockerOperationsTimeout collects operation timeouts by operation type.
DockerOperationsTimeout = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: kubeletSubsystem,
Name: DockerOperationsTimeoutKey,
Help: "Cumulative number of Docker operation timeout by operation type.",
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
)
var registerMetrics sync.Once
// Register all metrics.
func Register() {
registerMetrics.Do(func() {
legacyregistry.MustRegister(DockerOperationsLatency)
legacyregistry.MustRegister(DockerOperations)
legacyregistry.MustRegister(DockerOperationsErrors)
legacyregistry.MustRegister(DockerOperationsTimeout)
})
}
// SinceInSeconds gets the time since the specified start in seconds.
func SinceInSeconds(start time.Time) float64 {
return time.Since(start).Seconds()
}

25
vendor/k8s.io/kubernetes/pkg/kubelet/events/BUILD generated vendored
View File

@ -1,25 +0,0 @@
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
)
go_library(
name = "go_default_library",
srcs = ["event.go"],
importpath = "k8s.io/kubernetes/pkg/kubelet/events",
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)

104
vendor/k8s.io/kubernetes/pkg/kubelet/events/event.go generated vendored
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@ -1,104 +0,0 @@
/*
Copyright 2014 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package events
// Container event reason list
const (
CreatedContainer = "Created"
StartedContainer = "Started"
FailedToCreateContainer = "Failed"
FailedToStartContainer = "Failed"
KillingContainer = "Killing"
PreemptContainer = "Preempting"
BackOffStartContainer = "BackOff"
ExceededGracePeriod = "ExceededGracePeriod"
)
// Pod event reason list
const (
FailedToKillPod = "FailedKillPod"
FailedToCreatePodContainer = "FailedCreatePodContainer"
FailedToMakePodDataDirectories = "Failed"
NetworkNotReady = "NetworkNotReady"
)
// Image event reason list
const (
PullingImage = "Pulling"
PulledImage = "Pulled"
FailedToPullImage = "Failed"
FailedToInspectImage = "InspectFailed"
ErrImageNeverPullPolicy = "ErrImageNeverPull"
BackOffPullImage = "BackOff"
)
// kubelet event reason list
const (
NodeReady = "NodeReady"
NodeNotReady = "NodeNotReady"
NodeSchedulable = "NodeSchedulable"
NodeNotSchedulable = "NodeNotSchedulable"
StartingKubelet = "Starting"
KubeletSetupFailed = "KubeletSetupFailed"
FailedAttachVolume = "FailedAttachVolume"
FailedMountVolume = "FailedMount"
VolumeResizeFailed = "VolumeResizeFailed"
VolumeResizeSuccess = "VolumeResizeSuccessful"
FileSystemResizeFailed = "FileSystemResizeFailed"
FileSystemResizeSuccess = "FileSystemResizeSuccessful"
FailedMapVolume = "FailedMapVolume"
WarnAlreadyMountedVolume = "AlreadyMountedVolume"
SuccessfulAttachVolume = "SuccessfulAttachVolume"
SuccessfulMountVolume = "SuccessfulMountVolume"
NodeRebooted = "Rebooted"
ContainerGCFailed = "ContainerGCFailed"
ImageGCFailed = "ImageGCFailed"
FailedNodeAllocatableEnforcement = "FailedNodeAllocatableEnforcement"
SuccessfulNodeAllocatableEnforcement = "NodeAllocatableEnforced"
SandboxChanged = "SandboxChanged"
FailedCreatePodSandBox = "FailedCreatePodSandBox"
FailedStatusPodSandBox = "FailedPodSandBoxStatus"
FailedMountOnFilesystemMismatch = "FailedMountOnFilesystemMismatch"
)
// Image manager event reason list
const (
InvalidDiskCapacity = "InvalidDiskCapacity"
FreeDiskSpaceFailed = "FreeDiskSpaceFailed"
)
// Probe event reason list
const (
ContainerUnhealthy = "Unhealthy"
ContainerProbeWarning = "ProbeWarning"
)
// Pod worker event reason list
const (
FailedSync = "FailedSync"
)
// Config event reason list
const (
FailedValidation = "FailedValidation"
)
// Lifecycle hooks
const (
FailedPostStartHook = "FailedPostStartHook"
FailedPreStopHook = "FailedPreStopHook"
)

71
vendor/k8s.io/kubernetes/pkg/kubelet/lifecycle/BUILD generated vendored
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@ -1,71 +0,0 @@
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_library(
name = "go_default_library",
srcs = [
"admission_failure_handler_stub.go",
"doc.go",
"handlers.go",
"interfaces.go",
"predicate.go",
],
importpath = "k8s.io/kubernetes/pkg/kubelet/lifecycle",
deps = [
"//pkg/apis/core/v1/helper:go_default_library",
"//pkg/kubelet/container:go_default_library",
"//pkg/kubelet/types:go_default_library",
"//pkg/kubelet/util/format:go_default_library",
"//pkg/scheduler/framework/plugins/helper:go_default_library",
"//pkg/scheduler/framework/plugins/nodeaffinity:go_default_library",
"//pkg/scheduler/framework/plugins/nodename:go_default_library",
"//pkg/scheduler/framework/plugins/nodeports:go_default_library",
"//pkg/scheduler/framework/plugins/noderesources:go_default_library",
"//pkg/scheduler/nodeinfo:go_default_library",
"//pkg/security/apparmor:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/intstr:go_default_library",
"//vendor/k8s.io/klog:go_default_library",
"//vendor/k8s.io/utils/io:go_default_library",
],
)
go_test(
name = "go_default_test",
srcs = [
"handlers_test.go",
"predicate_test.go",
],
embed = [":go_default_library"],
deps = [
"//pkg/apis/core/v1/helper:go_default_library",
"//pkg/kubelet/container:go_default_library",
"//pkg/kubelet/util/format:go_default_library",
"//pkg/scheduler/framework/plugins/nodename:go_default_library",
"//pkg/scheduler/framework/plugins/nodeports:go_default_library",
"//pkg/scheduler/nodeinfo:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/intstr:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)

35
vendor/k8s.io/kubernetes/pkg/kubelet/lifecycle/admission_failure_handler_stub.go generated vendored
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@ -1,35 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package lifecycle
import (
"k8s.io/api/core/v1"
)
// AdmissionFailureHandlerStub is an AdmissionFailureHandler that does not perform any handling of admission failure.
// It simply passes the failure on.
type AdmissionFailureHandlerStub struct{}
var _ AdmissionFailureHandler = &AdmissionFailureHandlerStub{}
func NewAdmissionFailureHandlerStub() *AdmissionFailureHandlerStub {
return &AdmissionFailureHandlerStub{}
}
func (n *AdmissionFailureHandlerStub) HandleAdmissionFailure(admitPod *v1.Pod, failureReasons []PredicateFailureReason) ([]PredicateFailureReason, error) {
return failureReasons, nil
}

19
vendor/k8s.io/kubernetes/pkg/kubelet/lifecycle/doc.go generated vendored
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@ -1,19 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// Handlers for pod lifecycle events and interfaces to integrate
// with kubelet admission, synchronization, and eviction of pods.
package lifecycle // import "k8s.io/kubernetes/pkg/kubelet/lifecycle"

307
vendor/k8s.io/kubernetes/pkg/kubelet/lifecycle/handlers.go generated vendored
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@ -1,307 +0,0 @@
/*
Copyright 2014 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package lifecycle
import (
"fmt"
"net"
"net/http"
"strconv"
"k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/klog"
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
"k8s.io/kubernetes/pkg/kubelet/util/format"
"k8s.io/kubernetes/pkg/security/apparmor"
utilio "k8s.io/utils/io"
)
const (
maxRespBodyLength = 10 * 1 << 10 // 10KB
)
type HandlerRunner struct {
httpGetter kubetypes.HTTPGetter
commandRunner kubecontainer.ContainerCommandRunner
containerManager podStatusProvider
}
type podStatusProvider interface {
GetPodStatus(uid types.UID, name, namespace string) (*kubecontainer.PodStatus, error)
}
func NewHandlerRunner(httpGetter kubetypes.HTTPGetter, commandRunner kubecontainer.ContainerCommandRunner, containerManager podStatusProvider) kubecontainer.HandlerRunner {
return &HandlerRunner{
httpGetter: httpGetter,
commandRunner: commandRunner,
containerManager: containerManager,
}
}
func (hr *HandlerRunner) Run(containerID kubecontainer.ContainerID, pod *v1.Pod, container *v1.Container, handler *v1.Handler) (string, error) {
switch {
case handler.Exec != nil:
var msg string
// TODO(tallclair): Pass a proper timeout value.
output, err := hr.commandRunner.RunInContainer(containerID, handler.Exec.Command, 0)
if err != nil {
msg = fmt.Sprintf("Exec lifecycle hook (%v) for Container %q in Pod %q failed - error: %v, message: %q", handler.Exec.Command, container.Name, format.Pod(pod), err, string(output))
klog.V(1).Infof(msg)
}
return msg, err
case handler.HTTPGet != nil:
msg, err := hr.runHTTPHandler(pod, container, handler)
if err != nil {
msg = fmt.Sprintf("Http lifecycle hook (%s) for Container %q in Pod %q failed - error: %v, message: %q", handler.HTTPGet.Path, container.Name, format.Pod(pod), err, msg)
klog.V(1).Infof(msg)
}
return msg, err
default:
err := fmt.Errorf("invalid handler: %v", handler)
msg := fmt.Sprintf("Cannot run handler: %v", err)
klog.Errorf(msg)
return msg, err
}
}
// resolvePort attempts to turn an IntOrString port reference into a concrete port number.
// If portReference has an int value, it is treated as a literal, and simply returns that value.
// If portReference is a string, an attempt is first made to parse it as an integer. If that fails,
// an attempt is made to find a port with the same name in the container spec.
// If a port with the same name is found, it's ContainerPort value is returned. If no matching
// port is found, an error is returned.
func resolvePort(portReference intstr.IntOrString, container *v1.Container) (int, error) {
if portReference.Type == intstr.Int {
return portReference.IntValue(), nil
}
portName := portReference.StrVal
port, err := strconv.Atoi(portName)
if err == nil {
return port, nil
}
for _, portSpec := range container.Ports {
if portSpec.Name == portName {
return int(portSpec.ContainerPort), nil
}
}
return -1, fmt.Errorf("couldn't find port: %v in %v", portReference, container)
}
func (hr *HandlerRunner) runHTTPHandler(pod *v1.Pod, container *v1.Container, handler *v1.Handler) (string, error) {
host := handler.HTTPGet.Host
if len(host) == 0 {
status, err := hr.containerManager.GetPodStatus(pod.UID, pod.Name, pod.Namespace)
if err != nil {
klog.Errorf("Unable to get pod info, event handlers may be invalid.")
return "", err
}
if len(status.IPs) == 0 {
return "", fmt.Errorf("failed to find networking container: %v", status)
}
host = status.IPs[0]
}
var port int
if handler.HTTPGet.Port.Type == intstr.String && len(handler.HTTPGet.Port.StrVal) == 0 {
port = 80
} else {
var err error
port, err = resolvePort(handler.HTTPGet.Port, container)
if err != nil {
return "", err
}
}
url := fmt.Sprintf("http://%s/%s", net.JoinHostPort(host, strconv.Itoa(port)), handler.HTTPGet.Path)
resp, err := hr.httpGetter.Get(url)
return getHttpRespBody(resp), err
}
func getHttpRespBody(resp *http.Response) string {
if resp == nil {
return ""
}
defer resp.Body.Close()
bytes, err := utilio.ReadAtMost(resp.Body, maxRespBodyLength)
if err == nil || err == utilio.ErrLimitReached {
return string(bytes)
}
return ""
}
func NewAppArmorAdmitHandler(validator apparmor.Validator) PodAdmitHandler {
return &appArmorAdmitHandler{
Validator: validator,
}
}
type appArmorAdmitHandler struct {
apparmor.Validator
}
func (a *appArmorAdmitHandler) Admit(attrs *PodAdmitAttributes) PodAdmitResult {
// If the pod is already running or terminated, no need to recheck AppArmor.
if attrs.Pod.Status.Phase != v1.PodPending {
return PodAdmitResult{Admit: true}
}
err := a.Validate(attrs.Pod)
if err == nil {
return PodAdmitResult{Admit: true}
}
return PodAdmitResult{
Admit: false,
Reason: "AppArmor",
Message: fmt.Sprintf("Cannot enforce AppArmor: %v", err),
}
}
func NewNoNewPrivsAdmitHandler(runtime kubecontainer.Runtime) PodAdmitHandler {
return &noNewPrivsAdmitHandler{
Runtime: runtime,
}
}
type noNewPrivsAdmitHandler struct {
kubecontainer.Runtime
}
func (a *noNewPrivsAdmitHandler) Admit(attrs *PodAdmitAttributes) PodAdmitResult {
// If the pod is already running or terminated, no need to recheck NoNewPrivs.
if attrs.Pod.Status.Phase != v1.PodPending {
return PodAdmitResult{Admit: true}
}
// If the containers in a pod do not require no-new-privs, admit it.
if !noNewPrivsRequired(attrs.Pod) {
return PodAdmitResult{Admit: true}
}
// Always admit runtimes except docker.
if a.Runtime.Type() != kubetypes.DockerContainerRuntime {
return PodAdmitResult{Admit: true}
}
// Make sure docker api version is valid.
rversion, err := a.Runtime.APIVersion()
if err != nil {
return PodAdmitResult{
Admit: false,
Reason: "NoNewPrivs",
Message: fmt.Sprintf("Cannot enforce NoNewPrivs: %v", err),
}
}
v, err := rversion.Compare("1.23.0")
if err != nil {
return PodAdmitResult{
Admit: false,
Reason: "NoNewPrivs",
Message: fmt.Sprintf("Cannot enforce NoNewPrivs: %v", err),
}
}
// If the version is less than 1.23 it will return -1 above.
if v == -1 {
return PodAdmitResult{
Admit: false,
Reason: "NoNewPrivs",
Message: fmt.Sprintf("Cannot enforce NoNewPrivs: docker runtime API version %q must be greater than or equal to 1.23", rversion.String()),
}
}
return PodAdmitResult{Admit: true}
}
func noNewPrivsRequired(pod *v1.Pod) bool {
// Iterate over pod containers and check if we added no-new-privs.
for _, c := range pod.Spec.Containers {
if c.SecurityContext != nil && c.SecurityContext.AllowPrivilegeEscalation != nil && !*c.SecurityContext.AllowPrivilegeEscalation {
return true
}
}
return false
}
func NewProcMountAdmitHandler(runtime kubecontainer.Runtime) PodAdmitHandler {
return &procMountAdmitHandler{
Runtime: runtime,
}
}
type procMountAdmitHandler struct {
kubecontainer.Runtime
}
func (a *procMountAdmitHandler) Admit(attrs *PodAdmitAttributes) PodAdmitResult {
// If the pod is already running or terminated, no need to recheck NoNewPrivs.
if attrs.Pod.Status.Phase != v1.PodPending {
return PodAdmitResult{Admit: true}
}
// If the containers in a pod only need the default ProcMountType, admit it.
if procMountIsDefault(attrs.Pod) {
return PodAdmitResult{Admit: true}
}
// Always admit runtimes except docker.
if a.Runtime.Type() != kubetypes.DockerContainerRuntime {
return PodAdmitResult{Admit: true}
}
// Make sure docker api version is valid.
// Merged in https://github.com/moby/moby/pull/36644
rversion, err := a.Runtime.APIVersion()
if err != nil {
return PodAdmitResult{
Admit: false,
Reason: "ProcMount",
Message: fmt.Sprintf("Cannot enforce ProcMount: %v", err),
}
}
v, err := rversion.Compare("1.38.0")
if err != nil {
return PodAdmitResult{
Admit: false,
Reason: "ProcMount",
Message: fmt.Sprintf("Cannot enforce ProcMount: %v", err),
}
}
// If the version is less than 1.38 it will return -1 above.
if v == -1 {
return PodAdmitResult{
Admit: false,
Reason: "ProcMount",
Message: fmt.Sprintf("Cannot enforce ProcMount: docker runtime API version %q must be greater than or equal to 1.38", rversion.String()),
}
}
return PodAdmitResult{Admit: true}
}
func procMountIsDefault(pod *v1.Pod) bool {
// Iterate over pod containers and check if we are using the DefaultProcMountType
// for all containers.
for _, c := range pod.Spec.Containers {
if c.SecurityContext != nil {
if c.SecurityContext.ProcMount != nil && *c.SecurityContext.ProcMount != v1.DefaultProcMount {
return false
}
}
}
return true
}

122
vendor/k8s.io/kubernetes/pkg/kubelet/lifecycle/interfaces.go generated vendored
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@ -1,122 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package lifecycle
import "k8s.io/api/core/v1"
// PodAdmitAttributes is the context for a pod admission decision.
// The member fields of this struct should never be mutated.
type PodAdmitAttributes struct {
// the pod to evaluate for admission
Pod *v1.Pod
// all pods bound to the kubelet excluding the pod being evaluated
OtherPods []*v1.Pod
}
// PodAdmitResult provides the result of a pod admission decision.
type PodAdmitResult struct {
// if true, the pod should be admitted.
Admit bool
// a brief single-word reason why the pod could not be admitted.
Reason string
// a brief message explaining why the pod could not be admitted.
Message string
}
// PodAdmitHandler is notified during pod admission.
type PodAdmitHandler interface {
// Admit evaluates if a pod can be admitted.
Admit(attrs *PodAdmitAttributes) PodAdmitResult
}
// PodAdmitTarget maintains a list of handlers to invoke.
type PodAdmitTarget interface {
// AddPodAdmitHandler adds the specified handler.
AddPodAdmitHandler(a PodAdmitHandler)
}
// PodSyncLoopHandler is invoked during each sync loop iteration.
type PodSyncLoopHandler interface {
// ShouldSync returns true if the pod needs to be synced.
// This operation must return immediately as its called for each pod.
// The provided pod should never be modified.
ShouldSync(pod *v1.Pod) bool
}
// PodSyncLoopTarget maintains a list of handlers to pod sync loop.
type PodSyncLoopTarget interface {
// AddPodSyncLoopHandler adds the specified handler.
AddPodSyncLoopHandler(a PodSyncLoopHandler)
}
// ShouldEvictResponse provides the result of a should evict request.
type ShouldEvictResponse struct {
// if true, the pod should be evicted.
Evict bool
// a brief CamelCase reason why the pod should be evicted.
Reason string
// a brief message why the pod should be evicted.
Message string
}
// PodSyncHandler is invoked during each sync pod operation.
type PodSyncHandler interface {
// ShouldEvict is invoked during each sync pod operation to determine
// if the pod should be evicted from the kubelet. If so, the pod status
// is updated to mark its phase as failed with the provided reason and message,
// and the pod is immediately killed.
// This operation must return immediately as its called for each sync pod.
// The provided pod should never be modified.
ShouldEvict(pod *v1.Pod) ShouldEvictResponse
}
// PodSyncTarget maintains a list of handlers to pod sync.
type PodSyncTarget interface {
// AddPodSyncHandler adds the specified handler
AddPodSyncHandler(a PodSyncHandler)
}
// PodLifecycleTarget groups a set of lifecycle interfaces for convenience.
type PodLifecycleTarget interface {
PodAdmitTarget
PodSyncLoopTarget
PodSyncTarget
}
// PodAdmitHandlers maintains a list of handlers to pod admission.
type PodAdmitHandlers []PodAdmitHandler
// AddPodAdmitHandler adds the specified observer.
func (handlers *PodAdmitHandlers) AddPodAdmitHandler(a PodAdmitHandler) {
*handlers = append(*handlers, a)
}
// PodSyncLoopHandlers maintains a list of handlers to pod sync loop.
type PodSyncLoopHandlers []PodSyncLoopHandler
// AddPodSyncLoopHandler adds the specified observer.
func (handlers *PodSyncLoopHandlers) AddPodSyncLoopHandler(a PodSyncLoopHandler) {
*handlers = append(*handlers, a)
}
// PodSyncHandlers maintains a list of handlers to pod sync.
type PodSyncHandlers []PodSyncHandler
// AddPodSyncHandler adds the specified handler.
func (handlers *PodSyncHandlers) AddPodSyncHandler(a PodSyncHandler) {
*handlers = append(*handlers, a)
}

249
vendor/k8s.io/kubernetes/pkg/kubelet/lifecycle/predicate.go generated vendored
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@ -1,249 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package lifecycle
import (
"fmt"
"k8s.io/klog"
pluginhelper "k8s.io/kubernetes/pkg/scheduler/framework/plugins/helper"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodeaffinity"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodename"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodeports"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/noderesources"
"k8s.io/api/core/v1"
v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
"k8s.io/kubernetes/pkg/kubelet/util/format"
schedulernodeinfo "k8s.io/kubernetes/pkg/scheduler/nodeinfo"
)
type getNodeAnyWayFuncType func() (*v1.Node, error)
type pluginResourceUpdateFuncType func(*schedulernodeinfo.NodeInfo, *PodAdmitAttributes) error
// AdmissionFailureHandler is an interface which defines how to deal with a failure to admit a pod.
// This allows for the graceful handling of pod admission failure.
type AdmissionFailureHandler interface {
HandleAdmissionFailure(admitPod *v1.Pod, failureReasons []PredicateFailureReason) ([]PredicateFailureReason, error)
}
type predicateAdmitHandler struct {
getNodeAnyWayFunc getNodeAnyWayFuncType
pluginResourceUpdateFunc pluginResourceUpdateFuncType
admissionFailureHandler AdmissionFailureHandler
}
var _ PodAdmitHandler = &predicateAdmitHandler{}
func NewPredicateAdmitHandler(getNodeAnyWayFunc getNodeAnyWayFuncType, admissionFailureHandler AdmissionFailureHandler, pluginResourceUpdateFunc pluginResourceUpdateFuncType) *predicateAdmitHandler {
return &predicateAdmitHandler{
getNodeAnyWayFunc,
pluginResourceUpdateFunc,
admissionFailureHandler,
}
}
func (w *predicateAdmitHandler) Admit(attrs *PodAdmitAttributes) PodAdmitResult {
node, err := w.getNodeAnyWayFunc()
if err != nil {
klog.Errorf("Cannot get Node info: %v", err)
return PodAdmitResult{
Admit: false,
Reason: "InvalidNodeInfo",
Message: "Kubelet cannot get node info.",
}
}
admitPod := attrs.Pod
pods := attrs.OtherPods
nodeInfo := schedulernodeinfo.NewNodeInfo(pods...)
nodeInfo.SetNode(node)
// ensure the node has enough plugin resources for that required in pods
if err = w.pluginResourceUpdateFunc(nodeInfo, attrs); err != nil {
message := fmt.Sprintf("Update plugin resources failed due to %v, which is unexpected.", err)
klog.Warningf("Failed to admit pod %v - %s", format.Pod(admitPod), message)
return PodAdmitResult{
Admit: false,
Reason: "UnexpectedAdmissionError",
Message: message,
}
}
// Remove the requests of the extended resources that are missing in the
// node info. This is required to support cluster-level resources, which
// are extended resources unknown to nodes.
//
// Caveat: If a pod was manually bound to a node (e.g., static pod) where a
// node-level extended resource it requires is not found, then kubelet will
// not fail admission while it should. This issue will be addressed with
// the Resource Class API in the future.
podWithoutMissingExtendedResources := removeMissingExtendedResources(admitPod, nodeInfo)
reasons, err := GeneralPredicates(podWithoutMissingExtendedResources, nodeInfo)
fit := len(reasons) == 0 && err == nil
if err != nil {
message := fmt.Sprintf("GeneralPredicates failed due to %v, which is unexpected.", err)
klog.Warningf("Failed to admit pod %v - %s", format.Pod(admitPod), message)
return PodAdmitResult{
Admit: fit,
Reason: "UnexpectedAdmissionError",
Message: message,
}
}
if !fit {
reasons, err = w.admissionFailureHandler.HandleAdmissionFailure(admitPod, reasons)
fit = len(reasons) == 0 && err == nil
if err != nil {
message := fmt.Sprintf("Unexpected error while attempting to recover from admission failure: %v", err)
klog.Warningf("Failed to admit pod %v - %s", format.Pod(admitPod), message)
return PodAdmitResult{
Admit: fit,
Reason: "UnexpectedAdmissionError",
Message: message,
}
}
}
if !fit {
var reason string
var message string
if len(reasons) == 0 {
message = fmt.Sprint("GeneralPredicates failed due to unknown reason, which is unexpected.")
klog.Warningf("Failed to admit pod %v - %s", format.Pod(admitPod), message)
return PodAdmitResult{
Admit: fit,
Reason: "UnknownReason",
Message: message,
}
}
// If there are failed predicates, we only return the first one as a reason.
r := reasons[0]
switch re := r.(type) {
case *PredicateFailureError:
reason = re.PredicateName
message = re.Error()
klog.V(2).Infof("Predicate failed on Pod: %v, for reason: %v", format.Pod(admitPod), message)
case *InsufficientResourceError:
reason = fmt.Sprintf("OutOf%s", re.ResourceName)
message = re.Error()
klog.V(2).Infof("Predicate failed on Pod: %v, for reason: %v", format.Pod(admitPod), message)
default:
reason = "UnexpectedPredicateFailureType"
message = fmt.Sprintf("GeneralPredicates failed due to %v, which is unexpected.", r)
klog.Warningf("Failed to admit pod %v - %s", format.Pod(admitPod), message)
}
return PodAdmitResult{
Admit: fit,
Reason: reason,
Message: message,
}
}
return PodAdmitResult{
Admit: true,
}
}
func removeMissingExtendedResources(pod *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *v1.Pod {
podCopy := pod.DeepCopy()
for i, c := range pod.Spec.Containers {
// We only handle requests in Requests but not Limits because the
// PodFitsResources predicate, to which the result pod will be passed,
// does not use Limits.
podCopy.Spec.Containers[i].Resources.Requests = make(v1.ResourceList)
for rName, rQuant := range c.Resources.Requests {
if v1helper.IsExtendedResourceName(rName) {
if _, found := nodeInfo.AllocatableResource().ScalarResources[rName]; !found {
continue
}
}
podCopy.Spec.Containers[i].Resources.Requests[rName] = rQuant
}
}
return podCopy
}
// InsufficientResourceError is an error type that indicates what kind of resource limit is
// hit and caused the unfitting failure.
type InsufficientResourceError struct {
ResourceName v1.ResourceName
Requested int64
Used int64
Capacity int64
}
func (e *InsufficientResourceError) Error() string {
return fmt.Sprintf("Node didn't have enough resource: %s, requested: %d, used: %d, capacity: %d",
e.ResourceName, e.Requested, e.Used, e.Capacity)
}
// PredicateFailureReason interface represents the failure reason of a predicate.
type PredicateFailureReason interface {
GetReason() string
}
// GetReason returns the reason of the InsufficientResourceError.
func (e *InsufficientResourceError) GetReason() string {
return fmt.Sprintf("Insufficient %v", e.ResourceName)
}
// GetInsufficientAmount returns the amount of the insufficient resource of the error.
func (e *InsufficientResourceError) GetInsufficientAmount() int64 {
return e.Requested - (e.Capacity - e.Used)
}
// PredicateFailureError describes a failure error of predicate.
type PredicateFailureError struct {
PredicateName string
PredicateDesc string
}
func (e *PredicateFailureError) Error() string {
return fmt.Sprintf("Predicate %s failed", e.PredicateName)
}
// GetReason returns the reason of the PredicateFailureError.
func (e *PredicateFailureError) GetReason() string {
return e.PredicateDesc
}
// GeneralPredicates checks a group of predicates that the kubelet cares about.
func GeneralPredicates(pod *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) ([]PredicateFailureReason, error) {
if nodeInfo.Node() == nil {
return nil, fmt.Errorf("node not found")
}
var reasons []PredicateFailureReason
for _, r := range noderesources.Fits(pod, nodeInfo, nil) {
reasons = append(reasons, &InsufficientResourceError{
ResourceName: r.ResourceName,
Requested: r.Requested,
Used: r.Used,
Capacity: r.Capacity,
})
}
if !pluginhelper.PodMatchesNodeSelectorAndAffinityTerms(pod, nodeInfo.Node()) {
reasons = append(reasons, &PredicateFailureError{nodeaffinity.Name, nodeaffinity.ErrReason})
}
if !nodename.Fits(pod, nodeInfo) {
reasons = append(reasons, &PredicateFailureError{nodename.Name, nodename.ErrReason})
}
if !nodeports.Fits(pod, nodeInfo) {
reasons = append(reasons, &PredicateFailureError{nodeports.Name, nodeports.ErrReason})
}
return reasons, nil
}

38
vendor/k8s.io/kubernetes/pkg/kubelet/metrics/BUILD generated vendored
View File

@ -1,38 +0,0 @@
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
)
go_library(
name = "go_default_library",
srcs = ["metrics.go"],
importpath = "k8s.io/kubernetes/pkg/kubelet/metrics",
deps = [
"//pkg/features:go_default_library",
"//pkg/kubelet/container:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
"//staging/src/k8s.io/component-base/metrics:go_default_library",
"//staging/src/k8s.io/component-base/metrics/legacyregistry:go_default_library",
"//vendor/k8s.io/klog:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [
":package-srcs",
"//pkg/kubelet/metrics/collectors:all-srcs",
],
tags = ["automanaged"],
)

5
vendor/k8s.io/kubernetes/pkg/kubelet/metrics/OWNERS generated vendored
View File

@ -1,5 +0,0 @@
# See the OWNERS docs at https://go.k8s.io/owners
approvers:
- dashpole
- sjenning

520
vendor/k8s.io/kubernetes/pkg/kubelet/metrics/metrics.go generated vendored
View File

@ -1,520 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package metrics
import (
"fmt"
"sync"
"time"
"k8s.io/component-base/metrics"
"k8s.io/component-base/metrics/legacyregistry"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/klog"
"k8s.io/kubernetes/pkg/features"
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
)
// This const block defines the metric names for the kubelet metrics.
const (
KubeletSubsystem = "kubelet"
NodeNameKey = "node_name"
NodeLabelKey = "node"
PodWorkerDurationKey = "pod_worker_duration_seconds"
PodStartDurationKey = "pod_start_duration_seconds"
CgroupManagerOperationsKey = "cgroup_manager_duration_seconds"
PodWorkerStartDurationKey = "pod_worker_start_duration_seconds"
PLEGRelistDurationKey = "pleg_relist_duration_seconds"
PLEGDiscardEventsKey = "pleg_discard_events"
PLEGRelistIntervalKey = "pleg_relist_interval_seconds"
PLEGLastSeenKey = "pleg_last_seen_seconds"
EvictionsKey = "evictions"
EvictionStatsAgeKey = "eviction_stats_age_seconds"
PreemptionsKey = "preemptions"
VolumeStatsCapacityBytesKey = "volume_stats_capacity_bytes"
VolumeStatsAvailableBytesKey = "volume_stats_available_bytes"
VolumeStatsUsedBytesKey = "volume_stats_used_bytes"
VolumeStatsInodesKey = "volume_stats_inodes"
VolumeStatsInodesFreeKey = "volume_stats_inodes_free"
VolumeStatsInodesUsedKey = "volume_stats_inodes_used"
// Metrics keys of remote runtime operations
RuntimeOperationsKey = "runtime_operations_total"
RuntimeOperationsDurationKey = "runtime_operations_duration_seconds"
RuntimeOperationsErrorsKey = "runtime_operations_errors_total"
// Metrics keys of device plugin operations
DevicePluginRegistrationCountKey = "device_plugin_registration_total"
DevicePluginAllocationDurationKey = "device_plugin_alloc_duration_seconds"
// Metric keys for node config
AssignedConfigKey = "node_config_assigned"
ActiveConfigKey = "node_config_active"
LastKnownGoodConfigKey = "node_config_last_known_good"
ConfigErrorKey = "node_config_error"
ConfigSourceLabelKey = "node_config_source"
ConfigSourceLabelValueLocal = "local"
ConfigUIDLabelKey = "node_config_uid"
ConfigResourceVersionLabelKey = "node_config_resource_version"
KubeletConfigKeyLabelKey = "node_config_kubelet_key"
// Metrics keys for RuntimeClass
RunPodSandboxDurationKey = "run_podsandbox_duration_seconds"
RunPodSandboxErrorsKey = "run_podsandbox_errors_total"
)
var (
// NodeName is a Gauge that tracks the ode's name. The count is always 1.
NodeName = metrics.NewGaugeVec(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: NodeNameKey,
Help: "The node's name. The count is always 1.",
StabilityLevel: metrics.ALPHA,
},
[]string{NodeLabelKey},
)
// ContainersPerPodCount is a Counter that tracks the number of containers per pod.
ContainersPerPodCount = metrics.NewHistogram(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: "containers_per_pod_count",
Help: "The number of containers per pod.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
)
// PodWorkerDuration is a Histogram that tracks the duration (in seconds) in takes to sync a single pod.
// Broken down by the operation type.
PodWorkerDuration = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: PodWorkerDurationKey,
Help: "Duration in seconds to sync a single pod. Broken down by operation type: create, update, or sync",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
// PodStartDuration is a Histogram that tracks the duration (in seconds) it takes for a single pod to go from pending to running.
PodStartDuration = metrics.NewHistogram(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: PodStartDurationKey,
Help: "Duration in seconds for a single pod to go from pending to running.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
)
// CgroupManagerDuration is a Histogram that tracks the duration (in seconds) it takes for cgroup manager operations to complete.
// Broken down by method.
CgroupManagerDuration = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: CgroupManagerOperationsKey,
Help: "Duration in seconds for cgroup manager operations. Broken down by method.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
// PodWorkerStartDuration is a Histogram that tracks the duration (in seconds) it takes from seeing a pod to starting a worker.
PodWorkerStartDuration = metrics.NewHistogram(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: PodWorkerStartDurationKey,
Help: "Duration in seconds from seeing a pod to starting a worker.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
)
// PLEGRelistDuration is a Histogram that tracks the duration (in seconds) it takes for relisting pods in the Kubelet's
// Pod Lifecycle Event Generator (PLEG).
PLEGRelistDuration = metrics.NewHistogram(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: PLEGRelistDurationKey,
Help: "Duration in seconds for relisting pods in PLEG.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
)
// PLEGDiscardEvents is a Counter that tracks the number of discarding events in the Kubelet's Pod Lifecycle Event Generator (PLEG).
PLEGDiscardEvents = metrics.NewCounter(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: PLEGDiscardEventsKey,
Help: "The number of discard events in PLEG.",
StabilityLevel: metrics.ALPHA,
},
)
// PLEGRelistInterval is a Histogram that tracks the intervals (in seconds) between relisting in the Kubelet's
// Pod Lifecycle Event Generator (PLEG).
PLEGRelistInterval = metrics.NewHistogram(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: PLEGRelistIntervalKey,
Help: "Interval in seconds between relisting in PLEG.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
)
// PLEGLastSeen is a Gauge giving the Unix timestamp when the Kubelet's
// Pod Lifecycle Event Generator (PLEG) was last seen active.
PLEGLastSeen = metrics.NewGauge(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: PLEGLastSeenKey,
Help: "Timestamp in seconds when PLEG was last seen active.",
StabilityLevel: metrics.ALPHA,
},
)
// RuntimeOperations is a Counter that tracks the cumulative number of remote runtime operations.
// Broken down by operation type.
RuntimeOperations = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: RuntimeOperationsKey,
Help: "Cumulative number of runtime operations by operation type.",
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
// RuntimeOperationsDuration is a Histogram that tracks the duration (in seconds) for remote runtime operations to complete.
// Broken down by operation type.
RuntimeOperationsDuration = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: RuntimeOperationsDurationKey,
Help: "Duration in seconds of runtime operations. Broken down by operation type.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
// RuntimeOperationsErrors is a Counter that tracks the cumulative number of remote runtime operations errors.
// Broken down by operation type.
RuntimeOperationsErrors = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: RuntimeOperationsErrorsKey,
Help: "Cumulative number of runtime operation errors by operation type.",
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
// Evictions is a Counter that tracks the cumulative number of pod evictions initiated by the kubelet.
// Broken down by eviction signal.
Evictions = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: EvictionsKey,
Help: "Cumulative number of pod evictions by eviction signal",
StabilityLevel: metrics.ALPHA,
},
[]string{"eviction_signal"},
)
// EvictionStatsAge is a Histogram that tracks the time (in seconds) between when stats are collected and when a pod is evicted
// based on those stats. Broken down by eviction signal.
EvictionStatsAge = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: EvictionStatsAgeKey,
Help: "Time between when stats are collected, and when pod is evicted based on those stats by eviction signal",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
[]string{"eviction_signal"},
)
// Preemptions is a Counter that tracks the cumulative number of pod preemptions initiated by the kubelet.
// Broken down by preemption signal. A preemption is only recorded for one resource, the sum of all signals
// is the number of preemptions on the given node.
Preemptions = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: PreemptionsKey,
Help: "Cumulative number of pod preemptions by preemption resource",
StabilityLevel: metrics.ALPHA,
},
[]string{"preemption_signal"},
)
// DevicePluginRegistrationCount is a Counter that tracks the cumulative number of device plugin registrations.
// Broken down by resource name.
DevicePluginRegistrationCount = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: DevicePluginRegistrationCountKey,
Help: "Cumulative number of device plugin registrations. Broken down by resource name.",
StabilityLevel: metrics.ALPHA,
},
[]string{"resource_name"},
)
// DevicePluginAllocationDuration is a Histogram that tracks the duration (in seconds) to serve a device plugin allocation request.
// Broken down by resource name.
DevicePluginAllocationDuration = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: DevicePluginAllocationDurationKey,
Help: "Duration in seconds to serve a device plugin Allocation request. Broken down by resource name.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
[]string{"resource_name"},
)
// Metrics for node config
// AssignedConfig is a Gauge that is set 1 if the Kubelet has a NodeConfig assigned.
AssignedConfig = metrics.NewGaugeVec(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: AssignedConfigKey,
Help: "The node's understanding of intended config. The count is always 1.",
StabilityLevel: metrics.ALPHA,
},
[]string{ConfigSourceLabelKey, ConfigUIDLabelKey, ConfigResourceVersionLabelKey, KubeletConfigKeyLabelKey},
)
// ActiveConfig is a Gauge that is set to 1 if the Kubelet has an active NodeConfig.
ActiveConfig = metrics.NewGaugeVec(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: ActiveConfigKey,
Help: "The config source the node is actively using. The count is always 1.",
StabilityLevel: metrics.ALPHA,
},
[]string{ConfigSourceLabelKey, ConfigUIDLabelKey, ConfigResourceVersionLabelKey, KubeletConfigKeyLabelKey},
)
// LastKnownGoodConfig is a Gauge that is set to 1 if the Kubelet has a NodeConfig it can fall back to if there
// are certain errors.
LastKnownGoodConfig = metrics.NewGaugeVec(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: LastKnownGoodConfigKey,
Help: "The config source the node will fall back to when it encounters certain errors. The count is always 1.",
StabilityLevel: metrics.ALPHA,
},
[]string{ConfigSourceLabelKey, ConfigUIDLabelKey, ConfigResourceVersionLabelKey, KubeletConfigKeyLabelKey},
)
// ConfigError is a Gauge that is set to 1 if the node is experiencing a configuration-related error.
ConfigError = metrics.NewGauge(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: ConfigErrorKey,
Help: "This metric is true (1) if the node is experiencing a configuration-related error, false (0) otherwise.",
StabilityLevel: metrics.ALPHA,
},
)
// RunPodSandboxDuration is a Histogram that tracks the duration (in seconds) it takes to run Pod Sandbox operations.
// Broken down by RuntimeClass.Handler.
RunPodSandboxDuration = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: RunPodSandboxDurationKey,
Help: "Duration in seconds of the run_podsandbox operations. Broken down by RuntimeClass.Handler.",
// Use DefBuckets for now, will customize the buckets if necessary.
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
[]string{"runtime_handler"},
)
// RunPodSandboxErrors is a Counter that tracks the cumulative number of Pod Sandbox operations errors.
// Broken down by RuntimeClass.Handler.
RunPodSandboxErrors = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: RunPodSandboxErrorsKey,
Help: "Cumulative number of the run_podsandbox operation errors by RuntimeClass.Handler.",
StabilityLevel: metrics.ALPHA,
},
[]string{"runtime_handler"},
)
// RunningPodCount is a gauge that tracks the number of Pods currently running
RunningPodCount = metrics.NewGauge(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: "running_pod_count",
Help: "Number of pods currently running",
StabilityLevel: metrics.ALPHA,
},
)
// RunningContainerCount is a gauge that tracks the number of containers currently running
RunningContainerCount = metrics.NewGaugeVec(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: "running_container_count",
Help: "Number of containers currently running",
StabilityLevel: metrics.ALPHA,
},
[]string{"container_state"},
)
)
var registerMetrics sync.Once
// Register registers all metrics.
func Register(containerCache kubecontainer.RuntimeCache, collectors ...metrics.StableCollector) {
// Register the metrics.
registerMetrics.Do(func() {
legacyregistry.MustRegister(NodeName)
legacyregistry.MustRegister(PodWorkerDuration)
legacyregistry.MustRegister(PodStartDuration)
legacyregistry.MustRegister(CgroupManagerDuration)
legacyregistry.MustRegister(PodWorkerStartDuration)
legacyregistry.MustRegister(ContainersPerPodCount)
legacyregistry.MustRegister(PLEGRelistDuration)
legacyregistry.MustRegister(PLEGDiscardEvents)
legacyregistry.MustRegister(PLEGRelistInterval)
legacyregistry.MustRegister(PLEGLastSeen)
legacyregistry.MustRegister(RuntimeOperations)
legacyregistry.MustRegister(RuntimeOperationsDuration)
legacyregistry.MustRegister(RuntimeOperationsErrors)
legacyregistry.MustRegister(Evictions)
legacyregistry.MustRegister(EvictionStatsAge)
legacyregistry.MustRegister(Preemptions)
legacyregistry.MustRegister(DevicePluginRegistrationCount)
legacyregistry.MustRegister(DevicePluginAllocationDuration)
legacyregistry.MustRegister(RunningContainerCount)
legacyregistry.MustRegister(RunningPodCount)
legacyregistry.MustRegister(RunPodSandboxDuration)
legacyregistry.MustRegister(RunPodSandboxErrors)
if utilfeature.DefaultFeatureGate.Enabled(features.DynamicKubeletConfig) {
legacyregistry.MustRegister(AssignedConfig)
legacyregistry.MustRegister(ActiveConfig)
legacyregistry.MustRegister(LastKnownGoodConfig)
legacyregistry.MustRegister(ConfigError)
}
for _, collector := range collectors {
legacyregistry.CustomMustRegister(collector)
}
})
}
// GetGather returns the gatherer. It used by test case outside current package.
func GetGather() metrics.Gatherer {
return legacyregistry.DefaultGatherer
}
// SinceInSeconds gets the time since the specified start in seconds.
func SinceInSeconds(start time.Time) float64 {
return time.Since(start).Seconds()
}
const configMapAPIPathFmt = "/api/v1/namespaces/%s/configmaps/%s"
func configLabels(source *corev1.NodeConfigSource) (map[string]string, error) {
if source == nil {
return map[string]string{
// prometheus requires all of the labels that can be set on the metric
ConfigSourceLabelKey: "local",
ConfigUIDLabelKey: "",
ConfigResourceVersionLabelKey: "",
KubeletConfigKeyLabelKey: "",
}, nil
}
if source.ConfigMap != nil {
return map[string]string{
ConfigSourceLabelKey: fmt.Sprintf(configMapAPIPathFmt, source.ConfigMap.Namespace, source.ConfigMap.Name),
ConfigUIDLabelKey: string(source.ConfigMap.UID),
ConfigResourceVersionLabelKey: source.ConfigMap.ResourceVersion,
KubeletConfigKeyLabelKey: source.ConfigMap.KubeletConfigKey,
}, nil
}
return nil, fmt.Errorf("unrecognized config source type, all source subfields were nil")
}
// track labels across metric updates, so we can delete old label sets and prevent leaks
var assignedConfigLabels map[string]string
// SetAssignedConfig tracks labels according to the assigned NodeConfig. It also tracks labels
// across metric updates so old labels can be safely deleted.
func SetAssignedConfig(source *corev1.NodeConfigSource) error {
// compute the timeseries labels from the source
labels, err := configLabels(source)
if err != nil {
return err
}
// clean up the old timeseries (WithLabelValues creates a new one for each distinct label set)
if !AssignedConfig.Delete(assignedConfigLabels) {
klog.Warningf("Failed to delete metric for labels %v. This may result in ambiguity from multiple metrics concurrently indicating different assigned configs.", assignedConfigLabels)
}
// record the new timeseries
assignedConfigLabels = labels
// expose the new timeseries with a constant count of 1
AssignedConfig.With(assignedConfigLabels).Set(1)
return nil
}
// track labels across metric updates, so we can delete old label sets and prevent leaks
var activeConfigLabels map[string]string
// SetActiveConfig tracks labels according to the NodeConfig that is currently used by the Kubelet.
// It also tracks labels across metric updates so old labels can be safely deleted.
func SetActiveConfig(source *corev1.NodeConfigSource) error {
// compute the timeseries labels from the source
labels, err := configLabels(source)
if err != nil {
return err
}
// clean up the old timeseries (WithLabelValues creates a new one for each distinct label set)
if !ActiveConfig.Delete(activeConfigLabels) {
klog.Warningf("Failed to delete metric for labels %v. This may result in ambiguity from multiple metrics concurrently indicating different active configs.", activeConfigLabels)
}
// record the new timeseries
activeConfigLabels = labels
// expose the new timeseries with a constant count of 1
ActiveConfig.With(activeConfigLabels).Set(1)
return nil
}
// track labels across metric updates, so we can delete old label sets and prevent leaks
var lastKnownGoodConfigLabels map[string]string
// SetLastKnownGoodConfig tracks labels according to the NodeConfig that was successfully applied last.
// It also tracks labels across metric updates so old labels can be safely deleted.
func SetLastKnownGoodConfig(source *corev1.NodeConfigSource) error {
// compute the timeseries labels from the source
labels, err := configLabels(source)
if err != nil {
return err
}
// clean up the old timeseries (WithLabelValues creates a new one for each distinct label set)
if !LastKnownGoodConfig.Delete(lastKnownGoodConfigLabels) {
klog.Warningf("Failed to delete metric for labels %v. This may result in ambiguity from multiple metrics concurrently indicating different last known good configs.", lastKnownGoodConfigLabels)
}
// record the new timeseries
lastKnownGoodConfigLabels = labels
// expose the new timeseries with a constant count of 1
LastKnownGoodConfig.With(lastKnownGoodConfigLabels).Set(1)
return nil
}
// SetConfigError sets a the ConfigError metric to 1 in case any errors were encountered.
func SetConfigError(err bool) {
if err {
ConfigError.Set(1)
} else {
ConfigError.Set(0)
}
}
// SetNodeName sets the NodeName Gauge to 1.
func SetNodeName(name types.NodeName) {
NodeName.WithLabelValues(string(name)).Set(1)
}

44
vendor/k8s.io/kubernetes/pkg/kubelet/sysctl/BUILD generated vendored
View File

@ -1,44 +0,0 @@
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_library(
name = "go_default_library",
srcs = [
"namespace.go",
"whitelist.go",
],
importpath = "k8s.io/kubernetes/pkg/kubelet/sysctl",
deps = [
"//pkg/apis/core/validation:go_default_library",
"//pkg/apis/policy/validation:go_default_library",
"//pkg/kubelet/lifecycle:go_default_library",
],
)
go_test(
name = "go_default_test",
srcs = [
"namespace_test.go",
"whitelist_test.go",
],
embed = [":go_default_library"],
deps = ["//pkg/security/podsecuritypolicy/sysctl:go_default_library"],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)

60
vendor/k8s.io/kubernetes/pkg/kubelet/sysctl/namespace.go generated vendored
View File

@ -1,60 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package sysctl
import (
"strings"
)
// Namespace represents a kernel namespace name.
type Namespace string
const (
// the Linux IPC namespace
IpcNamespace = Namespace("ipc")
// the network namespace
NetNamespace = Namespace("net")
// the zero value if no namespace is known
UnknownNamespace = Namespace("")
)
var namespaces = map[string]Namespace{
"kernel.sem": IpcNamespace,
}
var prefixNamespaces = map[string]Namespace{
"kernel.shm": IpcNamespace,
"kernel.msg": IpcNamespace,
"fs.mqueue.": IpcNamespace,
"net.": NetNamespace,
}
// NamespacedBy returns the namespace of the Linux kernel for a sysctl, or
// UnknownNamespace if the sysctl is not known to be namespaced.
func NamespacedBy(val string) Namespace {
if ns, found := namespaces[val]; found {
return ns
}
for p, ns := range prefixNamespaces {
if strings.HasPrefix(val, p) {
return ns
}
}
return UnknownNamespace
}

136
vendor/k8s.io/kubernetes/pkg/kubelet/sysctl/whitelist.go generated vendored
View File

@ -1,136 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package sysctl
import (
"fmt"
"strings"
"k8s.io/kubernetes/pkg/apis/core/validation"
policyvalidation "k8s.io/kubernetes/pkg/apis/policy/validation"
"k8s.io/kubernetes/pkg/kubelet/lifecycle"
)
const (
AnnotationInvalidReason = "InvalidSysctlAnnotation"
ForbiddenReason = "SysctlForbidden"
)
// patternWhitelist takes a list of sysctls or sysctl patterns (ending in *) and
// checks validity via a sysctl and prefix map, rejecting those which are not known
// to be namespaced.
type patternWhitelist struct {
sysctls map[string]Namespace
prefixes map[string]Namespace
}
var _ lifecycle.PodAdmitHandler = &patternWhitelist{}
// NewWhitelist creates a new Whitelist from a list of sysctls and sysctl pattern (ending in *).
func NewWhitelist(patterns []string) (*patternWhitelist, error) {
w := &patternWhitelist{
sysctls: map[string]Namespace{},
prefixes: map[string]Namespace{},
}
for _, s := range patterns {
if !policyvalidation.IsValidSysctlPattern(s) {
return nil, fmt.Errorf("sysctl %q must have at most %d characters and match regex %s",
s,
validation.SysctlMaxLength,
policyvalidation.SysctlPatternFmt,
)
}
if strings.HasSuffix(s, "*") {
prefix := s[:len(s)-1]
ns := NamespacedBy(prefix)
if ns == UnknownNamespace {
return nil, fmt.Errorf("the sysctls %q are not known to be namespaced", s)
}
w.prefixes[prefix] = ns
} else {
ns := NamespacedBy(s)
if ns == UnknownNamespace {
return nil, fmt.Errorf("the sysctl %q are not known to be namespaced", s)
}
w.sysctls[s] = ns
}
}
return w, nil
}
// validateSysctl checks that a sysctl is whitelisted because it is known
// to be namespaced by the Linux kernel. Note that being whitelisted is required, but not
// sufficient: the container runtime might have a stricter check and refuse to launch a pod.
//
// The parameters hostNet and hostIPC are used to forbid sysctls for pod sharing the
// respective namespaces with the host. This check is only possible for sysctls on
// the static default whitelist, not those on the custom whitelist provided by the admin.
func (w *patternWhitelist) validateSysctl(sysctl string, hostNet, hostIPC bool) error {
nsErrorFmt := "%q not allowed with host %s enabled"
if ns, found := w.sysctls[sysctl]; found {
if ns == IpcNamespace && hostIPC {
return fmt.Errorf(nsErrorFmt, sysctl, ns)
}
if ns == NetNamespace && hostNet {
return fmt.Errorf(nsErrorFmt, sysctl, ns)
}
return nil
}
for p, ns := range w.prefixes {
if strings.HasPrefix(sysctl, p) {
if ns == IpcNamespace && hostIPC {
return fmt.Errorf(nsErrorFmt, sysctl, ns)
}
if ns == NetNamespace && hostNet {
return fmt.Errorf(nsErrorFmt, sysctl, ns)
}
return nil
}
}
return fmt.Errorf("%q not whitelisted", sysctl)
}
// Admit checks that all sysctls given in pod's security context
// are valid according to the whitelist.
func (w *patternWhitelist) Admit(attrs *lifecycle.PodAdmitAttributes) lifecycle.PodAdmitResult {
pod := attrs.Pod
if pod.Spec.SecurityContext == nil || len(pod.Spec.SecurityContext.Sysctls) == 0 {
return lifecycle.PodAdmitResult{
Admit: true,
}
}
var hostNet, hostIPC bool
if pod.Spec.SecurityContext != nil {
hostNet = pod.Spec.HostNetwork
hostIPC = pod.Spec.HostIPC
}
for _, s := range pod.Spec.SecurityContext.Sysctls {
if err := w.validateSysctl(s.Name, hostNet, hostIPC); err != nil {
return lifecycle.PodAdmitResult{
Admit: false,
Reason: ForbiddenReason,
Message: fmt.Sprintf("forbidden sysctl: %v", err),
}
}
}
return lifecycle.PodAdmitResult{
Admit: true,
}
}

2
vendor/k8s.io/kubernetes/pkg/kubelet/types/BUILD generated vendored
View File

@ -35,10 +35,10 @@ go_test(
],
embed = [":go_default_library"],
deps = [
"//pkg/apis/scheduling:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/github.com/stretchr/testify/assert:go_default_library",
"//vendor/github.com/stretchr/testify/require:go_default_library",
],
)

3
vendor/k8s.io/kubernetes/pkg/kubelet/types/pod_status.go generated vendored
View File

@ -17,7 +17,7 @@ limitations under the License.
package types
import (
"k8s.io/api/core/v1"
v1 "k8s.io/api/core/v1"
)
// PodConditionsByKubelet is the list of pod conditions owned by kubelet
@ -25,7 +25,6 @@ var PodConditionsByKubelet = []v1.PodConditionType{
v1.PodScheduled,
v1.PodReady,
v1.PodInitialized,
v1.PodReasonUnschedulable,
v1.ContainersReady,
}

2
vendor/k8s.io/kubernetes/pkg/kubelet/types/pod_update.go generated vendored
View File

@ -48,8 +48,6 @@ const (
// Pods with the given ids have unexpected status in this source,
// kubelet should reconcile status with this source
RECONCILE
// Pods with the given ids have been restored from a checkpoint.
RESTORE
// These constants identify the sources of pods
// Updates from a file

11
vendor/k8s.io/kubernetes/pkg/kubelet/types/types.go generated vendored
View File

@ -87,6 +87,17 @@ func SortInitContainerStatuses(p *v1.Pod, statuses []v1.ContainerStatus) {
}
}
func SortStatusesOfInitContainers(p *v1.Pod, statusMap map[string]*v1.ContainerStatus) []v1.ContainerStatus {
containers := p.Spec.InitContainers
statuses := []v1.ContainerStatus{}
for _, container := range containers {
if status, found := statusMap[container.Name]; found {
statuses = append(statuses, *status)
}
}
return statuses
}
// Reservation represents reserved resources for non-pod components.
type Reservation struct {
// System represents resources reserved for non-kubernetes components.

45
vendor/k8s.io/kubernetes/pkg/kubelet/util/format/BUILD generated vendored
View File

@ -1,45 +0,0 @@
load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
go_library(
name = "go_default_library",
srcs = [
"pod.go",
"resources.go",
],
importpath = "k8s.io/kubernetes/pkg/kubelet/util/format",
visibility = ["//visibility:public"],
deps = [
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
],
)
go_test(
name = "go_default_test",
srcs = [
"pod_test.go",
"resources_test.go",
],
embed = [":go_default_library"],
deps = [
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
"//vendor/github.com/stretchr/testify/assert:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
visibility = ["//visibility:public"],
)

72
vendor/k8s.io/kubernetes/pkg/kubelet/util/format/pod.go generated vendored
View File

@ -1,72 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package format
import (
"fmt"
"strings"
"time"
"k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
)
type podHandler func(*v1.Pod) string
// Pod returns a string representing a pod in a consistent human readable format,
// with pod UID as part of the string.
func Pod(pod *v1.Pod) string {
return PodDesc(pod.Name, pod.Namespace, pod.UID)
}
// PodDesc returns a string representing a pod in a consistent human readable format,
// with pod UID as part of the string.
func PodDesc(podName, podNamespace string, podUID types.UID) string {
// Use underscore as the delimiter because it is not allowed in pod name
// (DNS subdomain format), while allowed in the container name format.
return fmt.Sprintf("%s_%s(%s)", podName, podNamespace, podUID)
}
// PodWithDeletionTimestamp is the same as Pod. In addition, it prints the
// deletion timestamp of the pod if it's not nil.
func PodWithDeletionTimestamp(pod *v1.Pod) string {
var deletionTimestamp string
if pod.DeletionTimestamp != nil {
deletionTimestamp = ":DeletionTimestamp=" + pod.DeletionTimestamp.UTC().Format(time.RFC3339)
}
return Pod(pod) + deletionTimestamp
}
// Pods returns a string representation a list of pods in a human
// readable format.
func Pods(pods []*v1.Pod) string {
return aggregatePods(pods, Pod)
}
// PodsWithDeletionTimestamps is the same as Pods. In addition, it prints the
// deletion timestamps of the pods if they are not nil.
func PodsWithDeletionTimestamps(pods []*v1.Pod) string {
return aggregatePods(pods, PodWithDeletionTimestamp)
}
func aggregatePods(pods []*v1.Pod, handler podHandler) string {
podStrings := make([]string, 0, len(pods))
for _, pod := range pods {
podStrings = append(podStrings, handler(pod))
}
return strings.Join(podStrings, ", ")
}

36
vendor/k8s.io/kubernetes/pkg/kubelet/util/format/resources.go generated vendored
View File

@ -1,36 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package format
import (
"fmt"
"sort"
"strings"
"k8s.io/api/core/v1"
)
// ResourceList returns a string representation of a resource list in a human readable format.
func ResourceList(resources v1.ResourceList) string {
resourceStrings := make([]string, 0, len(resources))
for key, value := range resources {
resourceStrings = append(resourceStrings, fmt.Sprintf("%v=%v", key, value.String()))
}
// sort the results for consistent log output
sort.Strings(resourceStrings)
return strings.Join(resourceStrings, ",")
}