Fresh dep ensure

vendor/k8s.io/kubernetes/pkg/kubectl/cmd/logs/BUILD

@@ -0,0 +1,50 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["logs.go"],
+    importpath = "k8s.io/kubernetes/pkg/kubectl/cmd/logs",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//pkg/kubectl/cmd/util:go_default_library",
+        "//pkg/kubectl/polymorphichelpers:go_default_library",
+        "//pkg/kubectl/scheme:go_default_library",
+        "//pkg/kubectl/util:go_default_library",
+        "//pkg/kubectl/util/i18n:go_default_library",
+        "//pkg/kubectl/util/templates: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/runtime:go_default_library",
+        "//staging/src/k8s.io/cli-runtime/pkg/genericclioptions:go_default_library",
+        "//staging/src/k8s.io/client-go/rest:go_default_library",
+        "//vendor/github.com/spf13/cobra:go_default_library",
+    ],
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["logs_test.go"],
+    embed = [":go_default_library"],
+    deps = [
+        "//pkg/kubectl/cmd/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/runtime:go_default_library",
+        "//staging/src/k8s.io/cli-runtime/pkg/genericclioptions:go_default_library",
+        "//staging/src/k8s.io/client-go/rest: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"],
+)

vendor/k8s.io/kubernetes/pkg/kubectl/cmd/logs/logs.go

@@ -0,0 +1,319 @@
+/*
+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 logs
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"time"
+
+	"github.com/spf13/cobra"
+
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/cli-runtime/pkg/genericclioptions"
+	"k8s.io/client-go/rest"
+	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
+	"k8s.io/kubernetes/pkg/kubectl/polymorphichelpers"
+	"k8s.io/kubernetes/pkg/kubectl/scheme"
+	"k8s.io/kubernetes/pkg/kubectl/util"
+	"k8s.io/kubernetes/pkg/kubectl/util/i18n"
+	"k8s.io/kubernetes/pkg/kubectl/util/templates"
+)
+
+const (
+	logsUsageStr = "logs [-f] [-p] (POD | TYPE/NAME) [-c CONTAINER]"
+)
+
+var (
+	logsExample = templates.Examples(i18n.T(`
+		# Return snapshot logs from pod nginx with only one container
+		kubectl logs nginx
+
+		# Return snapshot logs from pod nginx with multi containers
+		kubectl logs nginx --all-containers=true
+
+		# Return snapshot logs from all containers in pods defined by label app=nginx
+		kubectl logs -lapp=nginx --all-containers=true
+
+		# Return snapshot of previous terminated ruby container logs from pod web-1
+		kubectl logs -p -c ruby web-1
+
+		# Begin streaming the logs of the ruby container in pod web-1
+		kubectl logs -f -c ruby web-1
+
+		# Display only the most recent 20 lines of output in pod nginx
+		kubectl logs --tail=20 nginx
+
+		# Show all logs from pod nginx written in the last hour
+		kubectl logs --since=1h nginx
+
+		# Return snapshot logs from first container of a job named hello
+		kubectl logs job/hello
+
+		# Return snapshot logs from container nginx-1 of a deployment named nginx
+		kubectl logs deployment/nginx -c nginx-1`))
+
+	selectorTail    int64 = 10
+	logsUsageErrStr       = fmt.Sprintf("expected '%s'.\nPOD or TYPE/NAME is a required argument for the logs command", logsUsageStr)
+)
+
+const (
+	defaultPodLogsTimeout = 20 * time.Second
+)
+
+type LogsOptions struct {
+	Namespace     string
+	ResourceArg   string
+	AllContainers bool
+	Options       runtime.Object
+	Resources     []string
+
+	ConsumeRequestFn func(*rest.Request, io.Writer) error
+
+	// PodLogOptions
+	SinceTime    string
+	SinceSeconds time.Duration
+	Follow       bool
+	Previous     bool
+	Timestamps   bool
+	LimitBytes   int64
+	Tail         int64
+	Container    string
+
+	// whether or not a container name was given via --container
+	ContainerNameSpecified bool
+	Selector               string
+
+	Object           runtime.Object
+	GetPodTimeout    time.Duration
+	RESTClientGetter genericclioptions.RESTClientGetter
+	LogsForObject    polymorphichelpers.LogsForObjectFunc
+
+	genericclioptions.IOStreams
+}
+
+func NewLogsOptions(streams genericclioptions.IOStreams, allContainers bool) *LogsOptions {
+	return &LogsOptions{
+		IOStreams:     streams,
+		AllContainers: allContainers,
+		Tail:          -1,
+	}
+}
+
+// NewCmdLogs creates a new pod logs command
+func NewCmdLogs(f cmdutil.Factory, streams genericclioptions.IOStreams) *cobra.Command {
+	o := NewLogsOptions(streams, false)
+
+	cmd := &cobra.Command{
+		Use:                   logsUsageStr,
+		DisableFlagsInUseLine: true,
+		Short:                 i18n.T("Print the logs for a container in a pod"),
+		Long:                  "Print the logs for a container in a pod or specified resource. If the pod has only one container, the container name is optional.",
+		Example:               logsExample,
+		PreRun: func(cmd *cobra.Command, args []string) {
+			if len(os.Args) > 1 && os.Args[1] == "log" {
+				fmt.Fprintf(o.ErrOut, "%s is DEPRECATED and will be removed in a future version. Use %s instead.\n", "log", "logs")
+			}
+		},
+		Run: func(cmd *cobra.Command, args []string) {
+			cmdutil.CheckErr(o.Complete(f, cmd, args))
+			cmdutil.CheckErr(o.Validate())
+			cmdutil.CheckErr(o.RunLogs())
+		},
+		Aliases: []string{"log"},
+	}
+	cmd.Flags().BoolVar(&o.AllContainers, "all-containers", o.AllContainers, "Get all containers's logs in the pod(s).")
+	cmd.Flags().BoolVarP(&o.Follow, "follow", "f", o.Follow, "Specify if the logs should be streamed.")
+	cmd.Flags().BoolVar(&o.Timestamps, "timestamps", o.Timestamps, "Include timestamps on each line in the log output")
+	cmd.Flags().Int64Var(&o.LimitBytes, "limit-bytes", o.LimitBytes, "Maximum bytes of logs to return. Defaults to no limit.")
+	cmd.Flags().BoolVarP(&o.Previous, "previous", "p", o.Previous, "If true, print the logs for the previous instance of the container in a pod if it exists.")
+	cmd.Flags().Int64Var(&o.Tail, "tail", o.Tail, "Lines of recent log file to display. Defaults to -1 with no selector, showing all log lines otherwise 10, if a selector is provided.")
+	cmd.Flags().StringVar(&o.SinceTime, "since-time", o.SinceTime, i18n.T("Only return logs after a specific date (RFC3339). Defaults to all logs. Only one of since-time / since may be used."))
+	cmd.Flags().DurationVar(&o.SinceSeconds, "since", o.SinceSeconds, "Only return logs newer than a relative duration like 5s, 2m, or 3h. Defaults to all logs. Only one of since-time / since may be used.")
+	cmd.Flags().StringVarP(&o.Container, "container", "c", o.Container, "Print the logs of this container")
+	cmdutil.AddPodRunningTimeoutFlag(cmd, defaultPodLogsTimeout)
+	cmd.Flags().StringVarP(&o.Selector, "selector", "l", o.Selector, "Selector (label query) to filter on.")
+	return cmd
+}
+
+func (o *LogsOptions) ToLogOptions() (*corev1.PodLogOptions, error) {
+	logOptions := &corev1.PodLogOptions{
+		Container:  o.Container,
+		Follow:     o.Follow,
+		Previous:   o.Previous,
+		Timestamps: o.Timestamps,
+	}
+
+	if len(o.SinceTime) > 0 {
+		t, err := util.ParseRFC3339(o.SinceTime, metav1.Now)
+		if err != nil {
+			return nil, err
+		}
+
+		logOptions.SinceTime = &t
+	}
+
+	if o.LimitBytes != 0 {
+		logOptions.LimitBytes = &o.LimitBytes
+	}
+
+	if o.SinceSeconds != 0 {
+		// round up to the nearest second
+		sec := int64(o.SinceSeconds.Round(time.Second).Seconds())
+		logOptions.SinceSeconds = &sec
+	}
+
+	if len(o.Selector) > 0 && o.Tail == -1 {
+		logOptions.TailLines = &selectorTail
+	} else if o.Tail != -1 {
+		logOptions.TailLines = &o.Tail
+	}
+
+	return logOptions, nil
+}
+
+func (o *LogsOptions) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
+	o.ContainerNameSpecified = cmd.Flag("container").Changed
+	o.Resources = args
+
+	switch len(args) {
+	case 0:
+		if len(o.Selector) == 0 {
+			return cmdutil.UsageErrorf(cmd, "%s", logsUsageErrStr)
+		}
+	case 1:
+		o.ResourceArg = args[0]
+		if len(o.Selector) != 0 {
+			return cmdutil.UsageErrorf(cmd, "only a selector (-l) or a POD name is allowed")
+		}
+	case 2:
+		o.ResourceArg = args[0]
+		o.Container = args[1]
+	default:
+		return cmdutil.UsageErrorf(cmd, "%s", logsUsageErrStr)
+	}
+	var err error
+	o.Namespace, _, err = f.ToRawKubeConfigLoader().Namespace()
+	if err != nil {
+		return err
+	}
+
+	o.ConsumeRequestFn = DefaultConsumeRequest
+
+	o.GetPodTimeout, err = cmdutil.GetPodRunningTimeoutFlag(cmd)
+	if err != nil {
+		return err
+	}
+
+	o.Options, err = o.ToLogOptions()
+	if err != nil {
+		return err
+	}
+
+	o.RESTClientGetter = f
+	o.LogsForObject = polymorphichelpers.LogsForObjectFn
+
+	if o.Object == nil {
+		builder := f.NewBuilder().
+			WithScheme(scheme.Scheme, scheme.Scheme.PrioritizedVersionsAllGroups()...).
+			NamespaceParam(o.Namespace).DefaultNamespace().
+			SingleResourceType()
+		if o.ResourceArg != "" {
+			builder.ResourceNames("pods", o.ResourceArg)
+		}
+		if o.Selector != "" {
+			builder.ResourceTypes("pods").LabelSelectorParam(o.Selector)
+		}
+		infos, err := builder.Do().Infos()
+		if err != nil {
+			return err
+		}
+		if o.Selector == "" && len(infos) != 1 {
+			return errors.New("expected a resource")
+		}
+		o.Object = infos[0].Object
+	}
+
+	return nil
+}
+
+func (o LogsOptions) Validate() error {
+	if o.Follow && len(o.Selector) > 0 {
+		return fmt.Errorf("only one of follow (-f) or selector (-l) is allowed")
+	}
+
+	if len(o.SinceTime) > 0 && o.SinceSeconds != 0 {
+		return fmt.Errorf("at most one of `sinceTime` or `sinceSeconds` may be specified")
+	}
+
+	logsOptions, ok := o.Options.(*corev1.PodLogOptions)
+	if !ok {
+		return errors.New("unexpected logs options object")
+	}
+	if o.AllContainers && len(logsOptions.Container) > 0 {
+		return fmt.Errorf("--all-containers=true should not be specified with container name %s", logsOptions.Container)
+	}
+
+	if o.ContainerNameSpecified && len(o.Resources) == 2 {
+		return fmt.Errorf("only one of -c or an inline [CONTAINER] arg is allowed")
+	}
+
+	if o.LimitBytes < 0 {
+		return fmt.Errorf("--limit-bytes must be greater than 0")
+	}
+
+	if logsOptions.SinceSeconds != nil && *logsOptions.SinceSeconds < int64(0) {
+		return fmt.Errorf("--since must be greater than 0")
+	}
+
+	if logsOptions.TailLines != nil && *logsOptions.TailLines < 0 {
+		return fmt.Errorf("TailLines must be greater than or equal to 0")
+	}
+
+	return nil
+}
+
+// RunLogs retrieves a pod log
+func (o LogsOptions) RunLogs() error {
+	requests, err := o.LogsForObject(o.RESTClientGetter, o.Object, o.Options, o.GetPodTimeout, o.AllContainers)
+	if err != nil {
+		return err
+	}
+
+	for _, request := range requests {
+		if err := o.ConsumeRequestFn(request, o.Out); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func DefaultConsumeRequest(request *rest.Request, out io.Writer) error {
+	readCloser, err := request.Stream()
+	if err != nil {
+		return err
+	}
+	defer readCloser.Close()
+
+	_, err = io.Copy(out, readCloser)
+	return err
+}

vendor/k8s.io/kubernetes/pkg/kubectl/cmd/logs/logs_test.go

@@ -0,0 +1,298 @@
+/*
+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 logs
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"strings"
+	"testing"
+	"time"
+
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/cli-runtime/pkg/genericclioptions"
+	restclient "k8s.io/client-go/rest"
+	cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing"
+)
+
+func TestLog(t *testing.T) {
+	tests := []struct {
+		name, version, podPath, logPath string
+		pod                             *corev1.Pod
+	}{
+		{
+			name: "v1 - pod log",
+			pod:  testPod(),
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			logContent := "test log content"
+			tf := cmdtesting.NewTestFactory().WithNamespace("test")
+			defer tf.Cleanup()
+
+			streams, _, buf, _ := genericclioptions.NewTestIOStreams()
+
+			mock := &logTestMock{
+				logsContent: logContent,
+			}
+
+			opts := NewLogsOptions(streams, false)
+			opts.Namespace = "test"
+			opts.Object = test.pod
+			opts.Options = &corev1.PodLogOptions{}
+			opts.LogsForObject = mock.mockLogsForObject
+			opts.ConsumeRequestFn = mock.mockConsumeRequest
+			opts.RunLogs()
+
+			if buf.String() != logContent {
+				t.Errorf("%s: did not get expected log content. Got: %s", test.name, buf.String())
+			}
+		})
+	}
+}
+
+func testPod() *corev1.Pod {
+	return &corev1.Pod{
+		ObjectMeta: metav1.ObjectMeta{Name: "foo", Namespace: "test", ResourceVersion: "10"},
+		Spec: corev1.PodSpec{
+			RestartPolicy: corev1.RestartPolicyAlways,
+			DNSPolicy:     corev1.DNSClusterFirst,
+			Containers: []corev1.Container{
+				{
+					Name: "bar",
+				},
+			},
+		},
+	}
+}
+
+func TestValidateLogOptions(t *testing.T) {
+	f := cmdtesting.NewTestFactory()
+	defer f.Cleanup()
+	f.WithNamespace("")
+
+	tests := []struct {
+		name     string
+		args     []string
+		opts     func(genericclioptions.IOStreams) *LogsOptions
+		expected string
+	}{
+		{
+			name: "since & since-time",
+			opts: func(streams genericclioptions.IOStreams) *LogsOptions {
+				o := NewLogsOptions(streams, false)
+				o.SinceSeconds = time.Hour
+				o.SinceTime = "2006-01-02T15:04:05Z"
+
+				var err error
+				o.Options, err = o.ToLogOptions()
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+
+				return o
+			},
+			args:     []string{"foo"},
+			expected: "at most one of `sinceTime` or `sinceSeconds` may be specified",
+		},
+		{
+			name: "negative since-time",
+			opts: func(streams genericclioptions.IOStreams) *LogsOptions {
+				o := NewLogsOptions(streams, false)
+				o.SinceSeconds = -1 * time.Second
+
+				var err error
+				o.Options, err = o.ToLogOptions()
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+
+				return o
+			},
+			args:     []string{"foo"},
+			expected: "must be greater than 0",
+		},
+		{
+			name: "negative limit-bytes",
+			opts: func(streams genericclioptions.IOStreams) *LogsOptions {
+				o := NewLogsOptions(streams, false)
+				o.LimitBytes = -100
+
+				var err error
+				o.Options, err = o.ToLogOptions()
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+
+				return o
+			},
+			args:     []string{"foo"},
+			expected: "must be greater than 0",
+		},
+		{
+			name: "negative tail",
+			opts: func(streams genericclioptions.IOStreams) *LogsOptions {
+				o := NewLogsOptions(streams, false)
+				o.Tail = -100
+
+				var err error
+				o.Options, err = o.ToLogOptions()
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+
+				return o
+			},
+			args:     []string{"foo"},
+			expected: "must be greater than or equal to 0",
+		},
+		{
+			name: "container name combined with --all-containers",
+			opts: func(streams genericclioptions.IOStreams) *LogsOptions {
+				o := NewLogsOptions(streams, true)
+				o.Container = "my-container"
+
+				var err error
+				o.Options, err = o.ToLogOptions()
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+
+				return o
+			},
+			args:     []string{"my-pod", "my-container"},
+			expected: "--all-containers=true should not be specified with container",
+		},
+		{
+			name: "container name combined with second argument",
+			opts: func(streams genericclioptions.IOStreams) *LogsOptions {
+				o := NewLogsOptions(streams, false)
+				o.Container = "my-container"
+				o.ContainerNameSpecified = true
+
+				var err error
+				o.Options, err = o.ToLogOptions()
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+
+				return o
+			},
+			args:     []string{"my-pod", "my-container"},
+			expected: "only one of -c or an inline",
+		},
+		{
+			name: "follow and selector conflict",
+			opts: func(streams genericclioptions.IOStreams) *LogsOptions {
+				o := NewLogsOptions(streams, false)
+				o.Selector = "foo"
+				o.Follow = true
+
+				var err error
+				o.Options, err = o.ToLogOptions()
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+
+				return o
+			},
+			expected: "only one of follow (-f) or selector (-l) is allowed",
+		},
+	}
+	for _, test := range tests {
+		streams := genericclioptions.NewTestIOStreamsDiscard()
+
+		o := test.opts(streams)
+		o.Resources = test.args
+
+		err := o.Validate()
+		if err == nil {
+			t.Fatalf("expected error %q, got none", test.expected)
+		}
+
+		if !strings.Contains(err.Error(), test.expected) {
+			t.Errorf("%s: expected to find:\n\t%s\nfound:\n\t%s\n", test.name, test.expected, err.Error())
+		}
+	}
+}
+
+func TestLogComplete(t *testing.T) {
+	f := cmdtesting.NewTestFactory()
+	defer f.Cleanup()
+
+	tests := []struct {
+		name     string
+		args     []string
+		opts     func(genericclioptions.IOStreams) *LogsOptions
+		expected string
+	}{
+		{
+			name: "One args case",
+			args: []string{"foo"},
+			opts: func(streams genericclioptions.IOStreams) *LogsOptions {
+				o := NewLogsOptions(streams, false)
+				o.Selector = "foo"
+				return o
+			},
+			expected: "only a selector (-l) or a POD name is allowed",
+		},
+	}
+	for _, test := range tests {
+		cmd := NewCmdLogs(f, genericclioptions.NewTestIOStreamsDiscard())
+		out := ""
+
+		// checkErr breaks tests in case of errors, plus we just
+		// need to check errors returned by the command validation
+		o := test.opts(genericclioptions.NewTestIOStreamsDiscard())
+		err := o.Complete(f, cmd, test.args)
+		if err == nil {
+			t.Fatalf("expected error %q, got none", test.expected)
+		}
+
+		out = err.Error()
+		if !strings.Contains(out, test.expected) {
+			t.Errorf("%s: expected to find:\n\t%s\nfound:\n\t%s\n", test.name, test.expected, out)
+		}
+	}
+}
+
+type logTestMock struct {
+	logsContent string
+}
+
+func (l *logTestMock) mockConsumeRequest(req *restclient.Request, out io.Writer) error {
+	fmt.Fprintf(out, l.logsContent)
+	return nil
+}
+
+func (l *logTestMock) mockLogsForObject(restClientGetter genericclioptions.RESTClientGetter, object, options runtime.Object, timeout time.Duration, allContainers bool) ([]*restclient.Request, error) {
+	switch object.(type) {
+	case *corev1.Pod:
+		_, ok := options.(*corev1.PodLogOptions)
+		if !ok {
+			return nil, errors.New("provided options object is not a PodLogOptions")
+		}
+
+		return []*restclient.Request{{}}, nil
+	default:
+		return nil, fmt.Errorf("cannot get the logs from %T", object)
+	}
+}