Function generateNamespaceOpts

pkg/cmd/container/run_linux.go:121–155

generateNamespaceOpts help to validate the namespace options exposed via run and return the correct opts.

(
	ctx context.Context,
	client *containerd.Client,
	uts string,
	internalLabels *internalLabels,
	options types.ContainerCreateOptions,
)

// generateNamespaceOpts help to validate the namespace options exposed via run and return the correct opts.
func generateNamespaceOpts(
	ctx context.Context,
	client *containerd.Client,
	uts string,
	internalLabels *internalLabels,
	options types.ContainerCreateOptions,
) ([]oci.SpecOpts, error) {
	var opts []oci.SpecOpts

	switch uts {
	case "host":
		opts = append(opts, oci.WithHostNamespace(specs.UTSNamespace))
	case "":
		// Default, do nothing. Every container gets its own UTS ns by default.
	default:
		return nil, fmt.Errorf("unknown uts value. valid value(s) are 'host', got: %q", uts)
	}

	stateDir := internalLabels.stateDir
	ipcOpts, ipcLabel, err := generateIPCOpts(ctx, client, options.IPC, options.ShmSize, stateDir)
	if err != nil {
		return nil, err
	}
	internalLabels.ipc = ipcLabel
	opts = append(opts, ipcOpts...)

	pidOpts, pidLabel, err := generatePIDOpts(ctx, client, options.Pid)
	if err != nil {
		return nil, err
	}
	internalLabels.pidContainer = pidLabel
	opts = append(opts, pidOpts...)

	return opts, nil
}

func generateIPCOpts(ctx context.Context, client *containerd.Client, ipcFlag string, shmSize string, stateDir string) ([]oci.SpecOpts, string, error) {
	ipcFlag = strings.ToLower(ipcFlag)