mirror of https://github.com/linkerd/linkerd2.git
95 lines
2.5 KiB
Go
95 lines
2.5 KiB
Go
package cmd
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import (
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"fmt"
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"os"
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pkgcmd "github.com/linkerd/linkerd2/pkg/cmd"
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"github.com/linkerd/linkerd2/pkg/k8s"
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pkgK8s "github.com/linkerd/linkerd2/pkg/k8s"
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vizLabels "github.com/linkerd/linkerd2/viz/pkg/labels"
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"github.com/spf13/cobra"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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type listOptions struct {
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namespace string
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allNamespaces bool
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}
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func newCmdList() *cobra.Command {
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var options listOptions
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cmd := &cobra.Command{
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Use: "list [flags]",
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Short: "Lists which pods can be tapped",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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k8sAPI, err := k8s.NewAPI(kubeconfigPath, kubeContext, impersonate, impersonateGroup, 0)
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if err != nil {
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return err
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}
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if options.namespace == "" {
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options.namespace = pkgcmd.GetDefaultNamespace(kubeconfigPath, kubeContext)
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}
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if options.allNamespaces {
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options.namespace = v1.NamespaceAll
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}
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pods, err := k8sAPI.CoreV1().Pods(options.namespace).List(cmd.Context(), metav1.ListOptions{})
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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var tapEnabled, tapDisabled, tapNotEnabled []v1.Pod
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for _, pod := range pods.Items {
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pod := pod
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if pkgK8s.IsMeshed(&pod, controlPlaneNamespace) {
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if vizLabels.IsTapDisabled(pod) {
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tapDisabled = append(tapDisabled, pod)
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} else if !vizLabels.IsTapEnabled(&pod) {
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tapNotEnabled = append(tapNotEnabled, pod)
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} else {
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tapEnabled = append(tapEnabled, pod)
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}
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}
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}
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if len(tapEnabled) > 0 {
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fmt.Println("Pods with tap enabled:")
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for _, pod := range tapEnabled {
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fmt.Printf("\t* %s/%s\n", pod.Namespace, pod.Name)
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}
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}
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if len(tapDisabled) > 0 {
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fmt.Println("Pods with tap disabled:")
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for _, pod := range tapDisabled {
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fmt.Printf("\t* %s/%s\n", pod.Namespace, pod.Name)
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}
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}
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if len(tapNotEnabled) > 0 {
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fmt.Println("Pods missing tap configuration (restart these pods to enable tap):")
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for _, pod := range tapNotEnabled {
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fmt.Printf("\t* %s/%s\n", pod.Namespace, pod.Name)
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}
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}
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if len(tapEnabled)+len(tapDisabled)+len(tapNotEnabled) == 0 {
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fmt.Println("No meshed pods found")
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}
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return nil
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},
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}
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cmd.Flags().StringVarP(&options.namespace, "namespace", "n", options.namespace, "The namespace to list pods in")
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cmd.Flags().BoolVarP(&options.allNamespaces, "all-namespaces", "A", options.allNamespaces, "If present, list pods across all namespaces")
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return cmd
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}
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