// MyDockerID returns id of the current container the process is running within, if any
func MyDockerID() (string, error) {
if _, err := os.Stat("/proc/self/cgroup"); os.IsNotExist(err) {
return "", nil
}
output, exitStatus, err := util.ExecPipe(&util.Cmd{
Args: []string{"/bin/bash", "-c", `cat /proc/self/cgroup | grep "docker" | sed s/\\//\\n/g | tail -1`},
})
if err != nil {
return "", err
}
if exitStatus != 0 {
return "", fmt.Errorf("Failed to obtain docker id due error: %s", output)
}
return strings.Trim(output, "\n"), nil
}
func doGitCmd(dir string, args []string) (out string, err error) {
cmd := &util.Cmd{
Args: append([]string{"/usr/bin/git"}, args...),
Dir: dir,
}
out, exitCode, err := util.ExecPipe(cmd)
if err != nil {
return "", err
}
if exitCode != 0 {
if strings.Contains(out, "Not a git repository") {
return "", &ErrNotGitRepo{cmd, dir}
}
return "", fmt.Errorf("Cmd `%s` exited with code: %d, output: %s", cmd, exitCode, out)
}
return strings.Trim(out, "\n"), nil
}