Method command

pkg/funclet/runtime/runc/runc.go:57–91

(args ...string)

)

func (r *RuncConfig) command(args ...string) error {
	command := r.Command
	if command == "" {
		command = DefaultCommand
	}
	cmd := exec.Command(command, args...)
	logs.V(9).Infof("start command %v", cmd.Args)
	if err := cmd.Start(); err != nil {
		if exErr, ok := err.(*exec.Error); ok {
			if exErr.Err == exec.ErrNotFound || exErr.Err == os.ErrNotExist {
				return fmt.Errorf("runc not installed on system")
			}
		}
		return err
	}

	if err := cmd.Wait(); err != nil {
		if sysErr, ok := err.(*os.SyscallError); ok {
			// ignore error "no child process"
			if e := sysErr.Err.(syscall.Errno); e == syscall.ECHILD {
				return nil
			}
		} else {
			logs.Errorf("command [%s] cmd.Wait err %s", cmd.Args, err)
		}
		if exitErr, ok := err.(*exec.ExitError); ok {
			if ws, ok := exitErr.Sys().(syscall.WaitStatus); ok {
				logs.Errorf("exit code %+v %+v", ws, exitErr)
			}
			return fmt.Errorf("runc execution error")
		}
		return err
	}
	return nil
}

func (r *RuncConfig) commandOutput(args ...string) (data []byte, err error) {
	command := r.Command