92 lines
1.6 KiB
Go
92 lines
1.6 KiB
Go
package main
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import (
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"fmt"
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"os"
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"text/tabwriter"
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"github.com/containerd/containerd"
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"github.com/urfave/cli"
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)
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var containersCommand = cli.Command{
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Name: "containers",
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}
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var listCommand = cli.Command{
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Name: "list",
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Aliases: []string{"ls"},
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Usage: "list containers",
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Flags: []cli.Flag{
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cli.BoolFlag{
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Name: "quiet, q",
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Usage: "print only the container id",
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},
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},
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Action: func(context *cli.Context) error {
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var (
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quiet = context.Bool("quiet")
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ctx, cancel = appContext(context)
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)
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defer cancel()
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client, err := newClient(context)
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if err != nil {
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return err
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}
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containers, err := client.Containers(ctx)
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if err != nil {
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return err
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}
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if quiet {
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for _, c := range containers {
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fmt.Println(c.ID())
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}
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return nil
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}
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w := tabwriter.NewWriter(os.Stdout, 10, 1, 3, ' ', 0)
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fmt.Fprintln(w, "ID\tIMAGE\tPID\tSTATUS")
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for _, c := range containers {
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var imageName string
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if image, err := c.Image(ctx); err != nil {
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if err != containerd.ErrNoImage {
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return err
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}
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imageName = "-"
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} else {
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imageName = image.Name()
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}
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var (
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status string
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pid uint32
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)
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task, err := c.Task(ctx, nil)
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if err == nil {
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s, err := task.Status(ctx)
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if err != nil {
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return err
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}
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status = string(s)
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pid = task.Pid()
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} else {
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if err != containerd.ErrNoRunningTask {
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return err
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}
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status = string(containerd.Stopped)
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pid = 0
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}
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if _, err := fmt.Fprintf(w, "%s\t%s\t%d\t%s\n",
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c.ID(),
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imageName,
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pid,
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status,
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); err != nil {
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return err
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}
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}
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return w.Flush()
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},
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}
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