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This commit is contained in:
Serguei Bezverkhi
2018-03-06 17:33:18 -05:00
parent 4b3ebc171b
commit e9033989a0
5854 changed files with 248382 additions and 119809 deletions
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48
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/BUILD generated vendored
View File

@ -12,20 +12,19 @@ go_test(
"ipset_test.go",
"proxier_test.go",
],
importpath = "k8s.io/kubernetes/pkg/proxy/ipvs",
library = ":go_default_library",
embed = [":go_default_library"],
deps = [
"//pkg/apis/core:go_default_library",
"//pkg/proxy:go_default_library",
"//pkg/proxy/ipvs/testing:go_default_library",
"//pkg/proxy/util:go_default_library",
"//pkg/proxy/util/testing:go_default_library",
"//pkg/util/ipset:go_default_library",
"//pkg/util/ipset/testing:go_default_library",
"//pkg/util/iptables:go_default_library",
"//pkg/util/iptables/testing:go_default_library",
"//pkg/util/ipvs:go_default_library",
"//pkg/util/ipvs/testing:go_default_library",
"//vendor/github.com/davecgh/go-spew/spew:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/intstr:go_default_library",
@ -40,42 +39,69 @@ go_library(
srcs = [
"ipset.go",
"netlink.go",
"netlink_unsupported.go",
"proxier.go",
] + select({
"@io_bazel_rules_go//go/platform:linux_amd64": [
"@io_bazel_rules_go//go/platform:android": [
"netlink_unsupported.go",
],
"@io_bazel_rules_go//go/platform:darwin": [
"netlink_unsupported.go",
],
"@io_bazel_rules_go//go/platform:dragonfly": [
"netlink_unsupported.go",
],
"@io_bazel_rules_go//go/platform:freebsd": [
"netlink_unsupported.go",
],
"@io_bazel_rules_go//go/platform:linux": [
"netlink_linux.go",
],
"@io_bazel_rules_go//go/platform:nacl": [
"netlink_unsupported.go",
],
"@io_bazel_rules_go//go/platform:netbsd": [
"netlink_unsupported.go",
],
"@io_bazel_rules_go//go/platform:openbsd": [
"netlink_unsupported.go",
],
"@io_bazel_rules_go//go/platform:plan9": [
"netlink_unsupported.go",
],
"@io_bazel_rules_go//go/platform:solaris": [
"netlink_unsupported.go",
],
"@io_bazel_rules_go//go/platform:windows": [
"netlink_unsupported.go",
],
"//conditions:default": [],
}),
importpath = "k8s.io/kubernetes/pkg/proxy/ipvs",
deps = [
"//pkg/api/service:go_default_library",
"//pkg/apis/core:go_default_library",
"//pkg/apis/core/helper:go_default_library",
"//pkg/features:go_default_library",
"//pkg/proxy:go_default_library",
"//pkg/proxy/healthcheck:go_default_library",
"//pkg/proxy/metrics:go_default_library",
"//pkg/proxy/util:go_default_library",
"//pkg/util/async:go_default_library",
"//pkg/util/conntrack:go_default_library",
"//pkg/util/ipset:go_default_library",
"//pkg/util/iptables:go_default_library",
"//pkg/util/ipvs:go_default_library",
"//pkg/util/net:go_default_library",
"//pkg/util/sysctl:go_default_library",
"//pkg/util/version:go_default_library",
"//vendor/github.com/golang/glog:go_default_library",
"//vendor/k8s.io/api/core/v1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/runtime:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/wait:go_default_library",
"//vendor/k8s.io/apiserver/pkg/util/feature:go_default_library",
"//vendor/k8s.io/client-go/tools/record:go_default_library",
"//vendor/k8s.io/utils/exec:go_default_library",
] + select({
"@io_bazel_rules_go//go/platform:linux_amd64": [
"@io_bazel_rules_go//go/platform:linux": [
"//vendor/github.com/vishvananda/netlink:go_default_library",
"//vendor/golang.org/x/sys/unix:go_default_library",
],
"//conditions:default": [],
}),

8
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/OWNERS generated vendored Normal file
View File

@ -0,0 +1,8 @@
reviewers:
- thockin
- brendandburns
- m1093782566
approvers:
- thockin
- brendandburns
- m1093782566

75
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/README.md generated vendored
View File

@ -8,60 +8,41 @@ This document shows how to use kube-proxy ipvs mode.
Linux kernel.
IPVS runs on a host and acts as a load balancer in front of a cluster of real servers. IPVS can direct requests for TCP
and UDP-based services to the real servers, and make services of real servers appear as irtual services on a single IP address.
and UDP-based services to the real servers, and make services of real servers appear as virtual services on a single IP address.
## How to use
## Run kube-proxy in ipvs mode
#### Load IPVS kernel modules
Currently, local-up scripts and kubeadm support switching IPVS proxy mode via exporting environment variables or specifying flags.
Currently the IPVS kernel module can't be loaded automatically, so first we should use the following command to load IPVS kernel
modules manually.
```shell
modprobe ip_vs
modprobe ip_vs_rr
modprobe ip_vs_wrr
modprobe ip_vs_sh
modprobe nf_conntrack_ipv4
```
After that, use `lsmod | grep ip_vs` to make sure kernel modules are loaded.
#### Run kube-proxy in ipvs mode
#### Local UP Cluster
### Local UP Cluster
Kube-proxy will run in iptables mode by default in a [local-up cluster](https://github.com/kubernetes/community/blob/master/contributors/devel/running-locally.md).
Users should export the env `KUBEPROXY_MODE=ipvs` to specify the ipvs mode before deploying the cluster if want to run kube-proxy in ipvs mode.
Users should export the env `KUBE_PROXY_MODE=ipvs` to specify the ipvs mode before deploying the cluster if want to run kube-proxy in ipvs mode.
#### Cluster Created by Kubeadm
### Cluster Created by Kubeadm
Kube-proxy will run in iptables mode by default in a cluster deployed by [kubeadm](https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/).
Since IPVS mode is still feature-gated, users should add the flag `--feature-gates=SupportIPVSProxyMode=true` in `kubeadm init` command
```
kubeadm init --feature-gates=SupportIPVSProxyMode=true
```
to specify the ipvs mode before deploying the cluster if want to run kube-proxy in ipvs mode.
If you are using kubeadm with a configuration file, you can specify the ipvs mode adding `SupportIPVSProxyMode: true` below the `featureGates` field.
If you are using kubeadm with a [configuration file](https://kubernetes.io/docs/reference/setup-tools/kubeadm/kubeadm-init/#config-file), you can specify the ipvs mode adding `SupportIPVSProxyMode: true` below the `kubeProxy` field.
Then the configuration file is similar to:
```json
kind: MasterConfiguration
apiVersion: kubeadm.k8s.io/v1alpha1
...
featureGates:
SupportIPVSProxyMode: true
kubeProxy:
config:
featureGates: SupportIPVSProxyMode=true
mode: ipvs
...
```
#### Test
## Debug
Use `ipvsadm` tool to test whether the kube-proxy start succeed. By default we may get result like:
### Check IPVS proxy rules
People can use `ipvsadm` tool to check whether kube-proxy are maintaining IPVS rules correctly. For example, we may get IPVS proxy rules like:
```shell
# ipvsadm -ln
@ -73,3 +54,29 @@ TCP 10.0.0.1:443 rr persistent 10800
TCP 10.0.0.10:53 rr
UDP 10.0.0.10:53 rr
```
### Why kube-proxy can't start IPVS mode
People can do the following check list step by step:
**1. Enable IPVS feature gateway**
Currently IPVS-based kube-proxy is still in alpha phase, people need to enable `--feature-gates=SupportIPVSProxyMode=true` explicitly.
**2. Specify proxy-mode=ipvs**
Tell kube-proxy that proxy-mode=ipvs, please.
**3. Load ipvs required kernel modules**
The following kernel modules are required by IPVS-based kube-proxy:
```shell
ip_vs
ip_vs_rr
ip_vs_wrr
ip_vs_sh
nf_conntrack_ipv4
```
IPVS-based kube-proxy will load them automatically. If it fails to load them, please check whether they are compiled into your kernel.

10
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/ipset.go generated vendored
View File

@ -89,6 +89,10 @@ func NewIPSet(handle utilipset.Interface, name string, setType utilipset.Type, i
return set
}
func (set *IPSet) validateEntry(entry *utilipset.Entry) bool {
return entry.Validate(&set.IPSet)
}
func (set *IPSet) isEmpty() bool {
return len(set.activeEntries.UnsortedList()) == 0
}
@ -114,14 +118,16 @@ func (set *IPSet) syncIPSetEntries() {
// Clean legacy entries
for _, entry := range currentIPSetEntries.Difference(set.activeEntries).List() {
if err := set.handle.DelEntry(entry, set.Name); err != nil {
glog.Errorf("Failed to delete ip set entry: %s from ip set: %s, error: %v", entry, set.Name, err)
if !utilipset.IsNotFoundError(err) {
glog.Errorf("Failed to delete ip set entry: %s from ip set: %s, error: %v", entry, set.Name, err)
}
} else {
glog.V(3).Infof("Successfully delete legacy ip set entry: %s from ip set: %s", entry, set.Name)
}
}
// Create active entries
for _, entry := range set.activeEntries.Difference(currentIPSetEntries).List() {
if err := set.handle.AddEntry(entry, set.Name, true); err != nil {
if err := set.handle.AddEntry(entry, &set.IPSet, true); err != nil {
glog.Errorf("Failed to add entry: %v to ip set: %s, error: %v", entry, set.Name, err)
} else {
glog.V(3).Infof("Successfully add entry: %v to ip set: %s", entry, set.Name)

157
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/ipset_test.go generated vendored
View File

@ -18,6 +18,9 @@ package ipvs
import (
"testing"
utilipset "k8s.io/kubernetes/pkg/util/ipset"
fakeipset "k8s.io/kubernetes/pkg/util/ipset/testing"
)
func TestCheckIPSetVersion(t *testing.T) {
@ -47,3 +50,157 @@ func TestCheckIPSetVersion(t *testing.T) {
}
}
}
const testIPSetVersion = "v6.19"
func TestSyncIPSetEntries(t *testing.T) {
testCases := []struct {
set *utilipset.IPSet
setType utilipset.Type
ipv6 bool
activeEntries []string
currentEntries []string
expectedEntries []string
}{
{ // case 0
set: &utilipset.IPSet{
Name: "foo",
},
setType: utilipset.HashIPPort,
ipv6: false,
activeEntries: []string{"172.17.0.4,tcp:80"},
currentEntries: nil,
expectedEntries: []string{"172.17.0.4,tcp:80"},
},
{ // case 1
set: &utilipset.IPSet{
Name: "abz",
},
setType: utilipset.HashIPPort,
ipv6: true,
activeEntries: []string{"FE80::0202:B3FF:FE1E:8329,tcp:80"},
currentEntries: []string{"FE80::0202:B3FF:FE1E:8329,tcp:80"},
expectedEntries: []string{"FE80::0202:B3FF:FE1E:8329,tcp:80"},
},
{ // case 2
set: &utilipset.IPSet{
Name: "bca",
},
setType: utilipset.HashIPPort,
ipv6: false,
activeEntries: []string{"172.17.0.4,tcp:80", "172.17.0.5,tcp:80"},
currentEntries: []string{"172.17.0.5,udp:53"},
expectedEntries: []string{"172.17.0.4,tcp:80", "172.17.0.5,tcp:80"},
},
{ // case 3
set: &utilipset.IPSet{
Name: "bar",
},
setType: utilipset.HashIPPortIP,
ipv6: false,
activeEntries: []string{"172.17.0.4,tcp:80:172.17.0.4"},
currentEntries: []string{"172.17.0.4,tcp:80:172.17.0.4"},
expectedEntries: []string{"172.17.0.4,tcp:80:172.17.0.4"},
},
{ // case 4
set: &utilipset.IPSet{
Name: "baz",
},
setType: utilipset.HashIPPortIP,
ipv6: true,
activeEntries: []string{"FE80:0000:0000:0000:0202:B3FF:FE1E:8329,tcp:8080:FE80:0000:0000:0000:0202:B3FF:FE1E:8329"},
currentEntries: []string{"1111:0000:0000:0000:0202:B3FF:FE1E:8329,tcp:8081:1111:0000:0000:0000:0202:B3FF:FE1E:8329:8081"},
expectedEntries: []string{"FE80:0000:0000:0000:0202:B3FF:FE1E:8329,tcp:8080:FE80:0000:0000:0000:0202:B3FF:FE1E:8329"},
},
{ // case 5
set: &utilipset.IPSet{
Name: "NOPE",
},
setType: utilipset.HashIPPortIP,
ipv6: false,
activeEntries: []string{"172.17.0.4,tcp:80,172.17.0.9", "172.17.0.5,tcp:80,172.17.0.10"},
currentEntries: nil,
expectedEntries: []string{"172.17.0.4,tcp:80,172.17.0.9", "172.17.0.5,tcp:80,172.17.0.10"},
},
{ // case 6
set: &utilipset.IPSet{
Name: "ABC-DEF",
},
setType: utilipset.HashIPPortNet,
ipv6: false,
activeEntries: []string{"172.17.0.4,tcp:80,172.17.0.0/16", "172.17.0.5,tcp:80,172.17.0.0/16"},
currentEntries: nil,
expectedEntries: []string{"172.17.0.4,tcp:80,172.17.0.0/16", "172.17.0.5,tcp:80,172.17.0.0/16"},
},
{ // case 7
set: &utilipset.IPSet{
Name: "zar",
},
setType: utilipset.HashIPPortNet,
ipv6: true,
activeEntries: []string{"FE80::8329,tcp:8800,2001:db8::/32"},
currentEntries: []string{"FE80::8329,tcp:8800,2001:db8::/32"},
expectedEntries: []string{"FE80::8329,tcp:8800,2001:db8::/32"},
},
{ // case 8
set: &utilipset.IPSet{
Name: "bbb",
},
setType: utilipset.HashIPPortNet,
ipv6: true,
activeEntries: nil,
currentEntries: []string{"FE80::8329,udp:8801,2001:db8::/32"},
expectedEntries: nil,
},
{ // case 9
set: &utilipset.IPSet{
Name: "AAA",
},
setType: utilipset.BitmapPort,
activeEntries: nil,
currentEntries: []string{"80"},
expectedEntries: nil,
},
{ // case 10
set: &utilipset.IPSet{
Name: "c-c-c",
},
setType: utilipset.BitmapPort,
activeEntries: []string{"8080", "9090"},
currentEntries: []string{"80"},
expectedEntries: []string{"8080", "9090"},
},
{ // case 11
set: &utilipset.IPSet{
Name: "NODE-PORT",
},
setType: utilipset.BitmapPort,
activeEntries: []string{"8080"},
currentEntries: []string{"80", "9090", "8081", "8082"},
expectedEntries: []string{"8080"},
},
}
for i := range testCases {
set := NewIPSet(fakeipset.NewFake(testIPSetVersion), testCases[i].set.Name, testCases[i].setType, testCases[i].ipv6)
if err := set.handle.CreateSet(&set.IPSet, true); err != nil {
t.Errorf("Unexpected error: %v", err)
}
for _, entry := range testCases[i].expectedEntries {
set.handle.AddEntry(entry, testCases[i].set, true)
}
set.activeEntries.Insert(testCases[i].activeEntries...)
set.syncIPSetEntries()
for _, entry := range testCases[i].expectedEntries {
found, err := set.handle.TestEntry(entry, testCases[i].set.Name)
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
if !found {
t.Errorf("Unexpected entry 172.17.0.4,tcp:80 not found in set foo")
}
}
}
}

11
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/netlink.go generated vendored
View File

@ -16,14 +16,21 @@ limitations under the License.
package ipvs
import (
"k8s.io/apimachinery/pkg/util/sets"
)
// NetLinkHandle for revoke netlink interface
type NetLinkHandle interface {
// EnsureAddressBind checks if address is bound to the interface and, if not, binds it. If the address is already bound, return true.
// EnsureAddressBind checks if address is bound to the interface and, if not, binds it. If the address is already bound, return true.
EnsureAddressBind(address, devName string) (exist bool, err error)
// UnbindAddress unbind address from the interface
UnbindAddress(address, devName string) error
// EnsureDummyDevice checks if dummy device is exist and, if not, create one. If the dummy device is already exist, return true.
// EnsureDummyDevice checks if dummy device is exist and, if not, create one. If the dummy device is already exist, return true.
EnsureDummyDevice(devName string) (exist bool, err error)
// DeleteDummyDevice deletes the given dummy device by name.
DeleteDummyDevice(devName string) error
// GetLocalAddresses returns all unique local type IP addresses based on filter device interface. If filter device is not given,
// it will list all unique local type addresses.
GetLocalAddresses(filterDev string) (sets.String, error)
}

76
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/netlink_linux.go generated vendored
View File

@ -21,16 +21,18 @@ package ipvs
import (
"fmt"
"net"
"syscall"
"k8s.io/apimachinery/pkg/util/sets"
"github.com/vishvananda/netlink"
"golang.org/x/sys/unix"
)
type netlinkHandle struct {
netlink.Handle
}
// NewNetLinkHandle will crate a new netlinkHandle
// NewNetLinkHandle will crate a new NetLinkHandle
func NewNetLinkHandle() NetLinkHandle {
return &netlinkHandle{netlink.Handle{}}
}
@ -47,7 +49,7 @@ func (h *netlinkHandle) EnsureAddressBind(address, devName string) (exist bool,
}
if err := h.AddrAdd(dev, &netlink.Addr{IPNet: netlink.NewIPNet(addr)}); err != nil {
// "EEXIST" will be returned if the address is already bound to device
if err == syscall.Errno(syscall.EEXIST) {
if err == unix.EEXIST {
return true, nil
}
return false, fmt.Errorf("error bind address: %s to interface: %s, err: %v", address, devName, err)
@ -55,7 +57,7 @@ func (h *netlinkHandle) EnsureAddressBind(address, devName string) (exist bool,
return false, nil
}
// UnbindAddress unbind address from the interface
// UnbindAddress makes sure IP address is unbound from the network interface.
func (h *netlinkHandle) UnbindAddress(address, devName string) error {
dev, err := h.LinkByName(devName)
if err != nil {
@ -66,7 +68,9 @@ func (h *netlinkHandle) UnbindAddress(address, devName string) error {
return fmt.Errorf("error parse ip address: %s", address)
}
if err := h.AddrDel(dev, &netlink.Addr{IPNet: netlink.NewIPNet(addr)}); err != nil {
return fmt.Errorf("error unbind address: %s from interface: %s, err: %v", address, devName, err)
if err != unix.ENXIO {
return fmt.Errorf("error unbind address: %s from interface: %s, err: %v", address, devName, err)
}
}
return nil
}
@ -88,7 +92,11 @@ func (h *netlinkHandle) EnsureDummyDevice(devName string) (bool, error) {
func (h *netlinkHandle) DeleteDummyDevice(devName string) error {
link, err := h.LinkByName(devName)
if err != nil {
return fmt.Errorf("error deleting a non-exist dummy device: %s", devName)
_, ok := err.(netlink.LinkNotFoundError)
if ok {
return nil
}
return fmt.Errorf("error deleting a non-exist dummy device: %s, %v", devName, err)
}
dummy, ok := link.(*netlink.Dummy)
if !ok {
@ -96,3 +104,59 @@ func (h *netlinkHandle) DeleteDummyDevice(devName string) error {
}
return h.LinkDel(dummy)
}
// GetLocalAddresses lists all LOCAL type IP addresses from host based on filter device.
// If filter device is not specified, it's equivalent to exec:
// $ ip route show table local type local proto kernel
// 10.0.0.1 dev kube-ipvs0 scope host src 10.0.0.1
// 10.0.0.10 dev kube-ipvs0 scope host src 10.0.0.10
// 10.0.0.252 dev kube-ipvs0 scope host src 10.0.0.252
// 100.106.89.164 dev eth0 scope host src 100.106.89.164
// 127.0.0.0/8 dev lo scope host src 127.0.0.1
// 127.0.0.1 dev lo scope host src 127.0.0.1
// 172.17.0.1 dev docker0 scope host src 172.17.0.1
// 192.168.122.1 dev virbr0 scope host src 192.168.122.1
// Then cut the unique src IP fields,
// --> result set: [10.0.0.1, 10.0.0.10, 10.0.0.252, 100.106.89.164, 127.0.0.1, 192.168.122.1]
// If filter device is specified, it's equivalent to exec:
// $ ip route show table local type local proto kernel dev kube-ipvs0
// 10.0.0.1 scope host src 10.0.0.1
// 10.0.0.10 scope host src 10.0.0.10
// Then cut the unique src IP fields,
// --> result set: [10.0.0.1, 10.0.0.10]
func (h *netlinkHandle) GetLocalAddresses(filterDev string) (sets.String, error) {
linkIndex := -1
if len(filterDev) != 0 {
link, err := h.LinkByName(filterDev)
if err != nil {
return nil, fmt.Errorf("error get filter device %s, err: %v", filterDev, err)
}
linkIndex = link.Attrs().Index
}
routeFilter := &netlink.Route{
Table: unix.RT_TABLE_LOCAL,
Type: unix.RTN_LOCAL,
Protocol: unix.RTPROT_KERNEL,
}
filterMask := netlink.RT_FILTER_TABLE | netlink.RT_FILTER_TYPE | netlink.RT_FILTER_PROTOCOL
// find filter device
if linkIndex != -1 {
routeFilter.LinkIndex = linkIndex
filterMask |= netlink.RT_FILTER_OIF
}
routes, err := h.RouteListFiltered(netlink.FAMILY_ALL, routeFilter, filterMask)
if err != nil {
return nil, fmt.Errorf("error list route table, err: %v", err)
}
res := sets.NewString()
for _, route := range routes {
if route.Src != nil {
res.Insert(route.Src.String())
}
}
return res, nil
}

7
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/netlink_unsupported.go generated vendored
View File

@ -20,6 +20,8 @@ package ipvs
import (
"fmt"
"k8s.io/apimachinery/pkg/util/sets"
)
type emptyHandle struct {
@ -49,3 +51,8 @@ func (h *emptyHandle) EnsureDummyDevice(devName string) (bool, error) {
func (h *emptyHandle) DeleteDummyDevice(devName string) error {
return fmt.Errorf("netlink is not supported in this platform")
}
// GetLocalAddresses is part of interface.
func (h *emptyHandle) GetLocalAddresses(filterDev string) (sets.String, error) {
return nil, fmt.Errorf("netlink is not supported in this platform")
}

908
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/proxier.go generated vendored
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File diff suppressed because it is too large Load Diff

1019
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/proxier_test.go generated vendored
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File diff suppressed because it is too large Load Diff

9
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/testing/BUILD generated vendored
View File

@ -5,6 +5,7 @@ licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_library(
@ -12,6 +13,7 @@ go_library(
srcs = ["fake.go"],
importpath = "k8s.io/kubernetes/pkg/proxy/ipvs/testing",
tags = ["automanaged"],
deps = ["//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library"],
)
filegroup(
@ -26,3 +28,10 @@ filegroup(
srcs = [":package-srcs"],
tags = ["automanaged"],
)
go_test(
name = "go_default_test",
srcs = ["fake_test.go"],
embed = [":go_default_library"],
deps = ["//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library"],
)

55
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/testing/fake.go generated vendored
View File

@ -16,21 +16,33 @@ limitations under the License.
package testing
//FakeNetlinkHandle mock implementation of proxy NetlinkHandle
import (
"fmt"
"k8s.io/apimachinery/pkg/util/sets"
)
// FakeNetlinkHandle mock implementation of proxy NetlinkHandle
type FakeNetlinkHandle struct {
// localAddresses is a network interface name to all of its IP addresses map, e.g.
// eth0 -> [1.2.3.4, 10.20.30.40]
localAddresses map[string][]string
}
//NewFakeNetlinkHandle will create a new FakeNetlinkHandle
// NewFakeNetlinkHandle will create a new FakeNetlinkHandle
func NewFakeNetlinkHandle() *FakeNetlinkHandle {
return &FakeNetlinkHandle{}
fake := &FakeNetlinkHandle{
localAddresses: make(map[string][]string),
}
return fake
}
//EnsureAddressBind is a mock implementation
// EnsureAddressBind is a mock implementation
func (h *FakeNetlinkHandle) EnsureAddressBind(address, devName string) (exist bool, err error) {
return false, nil
}
//UnbindAddress is a mock implementation
// UnbindAddress is a mock implementation
func (h *FakeNetlinkHandle) UnbindAddress(address, devName string) error {
return nil
}
@ -44,3 +56,36 @@ func (h *FakeNetlinkHandle) EnsureDummyDevice(devName string) (bool, error) {
func (h *FakeNetlinkHandle) DeleteDummyDevice(devName string) error {
return nil
}
// GetLocalAddresses is a mock implementation
func (h *FakeNetlinkHandle) GetLocalAddresses(filterDev string) (sets.String, error) {
res := sets.NewString()
if len(filterDev) != 0 {
// list all addresses from a given network interface.
for _, addr := range h.localAddresses[filterDev] {
res.Insert(addr)
}
return res, nil
}
// If filterDev is not given, will list all addresses from all available network interface.
for linkName := range h.localAddresses {
// list all addresses from a given network interface.
for _, addr := range h.localAddresses[linkName] {
res.Insert(addr)
}
}
return res, nil
}
// SetLocalAddresses set IP addresses to the given interface device. It's not part of interface.
func (h *FakeNetlinkHandle) SetLocalAddresses(dev string, ips ...string) error {
if h.localAddresses == nil {
h.localAddresses = make(map[string][]string)
}
if len(dev) == 0 {
return fmt.Errorf("device name can't be empty")
}
h.localAddresses[dev] = make([]string, 0)
h.localAddresses[dev] = append(h.localAddresses[dev], ips...)
return nil
}

49
vendor/k8s.io/kubernetes/pkg/proxy/ipvs/testing/fake_test.go generated vendored Normal file
View File

@ -0,0 +1,49 @@
/*
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 testing
import (
"reflect"
"testing"
"k8s.io/apimachinery/pkg/util/sets"
)
func TestSetGetLocalAddresses(t *testing.T) {
fake := NewFakeNetlinkHandle()
fake.SetLocalAddresses("eth0", "1.2.3.4")
expected := sets.NewString("1.2.3.4")
addr, _ := fake.GetLocalAddresses("eth0")
if !reflect.DeepEqual(expected, addr) {
t.Errorf("Unexpected mismatch, expected: %v, got: %v", expected, addr)
}
list, _ := fake.GetLocalAddresses("")
if !reflect.DeepEqual(expected, list) {
t.Errorf("Unexpected mismatch, expected: %v, got: %v", expected, list)
}
fake.SetLocalAddresses("lo", "127.0.0.1")
expected = sets.NewString("127.0.0.1")
addr, _ = fake.GetLocalAddresses("lo")
if !reflect.DeepEqual(expected, addr) {
t.Errorf("Unexpected mismatch, expected: %v, got: %v", expected, addr)
}
list, _ = fake.GetLocalAddresses("")
expected = sets.NewString("1.2.3.4", "127.0.0.1")
if !reflect.DeepEqual(expected, list) {
t.Errorf("Unexpected mismatch, expected: %v, got: %v", expected, list)
}
}