Function generatePIDOpts

pkg/cmd/container/run_linux.go:176–223

(ctx context.Context, client *containerd.Client, pid string)

}

func generatePIDOpts(ctx context.Context, client *containerd.Client, pid string) ([]oci.SpecOpts, string, error) {
	opts := make([]oci.SpecOpts, 0)
	pid = strings.ToLower(pid)
	var pidInternalLabel string

	switch pid {
	case "":
		// do nothing
	case "host":
		opts = append(opts, oci.WithHostNamespace(specs.PIDNamespace))
		if rootlessutil.IsRootless() {
			opts = append(opts, containerutil.WithBindMountHostProcfs)
		}
	default: // container:<id|name>
		parsed := strings.Split(pid, ":")
		if len(parsed) < 2 || parsed[0] != "container" {
			return nil, "", fmt.Errorf("invalid pid namespace. Set --pid=[host|container:<name|id>")
		}

		containerName := parsed[1]
		walker := &containerwalker.ContainerWalker{
			Client: client,
			OnFound: func(ctx context.Context, found containerwalker.Found) error {
				if found.MatchCount > 1 {
					return fmt.Errorf("multiple IDs found with provided prefix: %s", found.Req)
				}

				o, err := containerutil.GenerateSharingPIDOpts(ctx, found.Container)
				if err != nil {
					return err
				}
				opts = append(opts, o...)
				pidInternalLabel = found.Container.ID()

				return nil
			},
		}
		matchedCount, err := walker.Walk(ctx, containerName)
		if err != nil {
			return nil, "", err
		}
		if matchedCount < 1 {
			return nil, "", fmt.Errorf("no such container: %s", containerName)
		}
	}

	return opts, pidInternalLabel, nil
}

func setOOMScoreAdj(opts []oci.SpecOpts, oomScoreAdjChanged bool, oomScoreAdj int) ([]oci.SpecOpts, error) {
	if !oomScoreAdjChanged {