Why forcing docker to remove all container always give exit status 125

Question

I'm writing this naive code in golang to ask docker to remove all container by force, but when running it, it always give me err: exit status 125.

I'm extremely confused as it runs smoothly on my own cli.

func removeAllContainers() error {
    // container ls -a -q | xargs docker container rm
    _, err := exec.Command(
        "docker",
        "container",
        "ls",
        "-a",
        "-q",
        "|",
        "xargs",
        "docker",
        "container",
        "rm",
        "-f",
    ).Output()
    if err != nil {
        return fmt.Errorf("cannot remove all containers: %v", err)
    }
    return nil
}

This error message is very uninformative -- we only know that the deamon is having some problem, but don't know what that problem is! I wonder if there's a way to get more detailed error message when running a docker command in golang.

Pipe operation `|` is managed by the shell. You are passing it as an argument to docker. Run the command via shell. — Burak Serdar, Nov 22 '21 at 03:33
`I wonder if there's a way to get more detailed error message` There is, print stderr. — tkausl, Nov 22 '21 at 03:34
@tkausl thanks! Could you elaborate on how to print stderr in golang? — Ugty, Nov 22 '21 at 03:36
@BurakSerdar thanks! do you mean by adding `"sh"` to the beginning of this `exec.Command`? — Ugty, Nov 22 '21 at 03:37
Yes. try `sh -c `Currently you are running one command, `docker` that also contains ` | xargs...` as part of the arguments. — Burak Serdar, Nov 22 '21 at 03:38
@BurakSerdar Running with `_, err := exec.Command("sh", "docker", "container", "ls",...` gave me error response 126 now. — Ugty, Nov 22 '21 at 03:39
What happens if you get the list of containers in one call, then remove in a second call? — AJcodez, Nov 22 '21 at 03:39
@AJcodez that definitely works but it may look a bit tedious. — Ugty, Nov 22 '21 at 03:41
@BurakSerdar thanks so much! `_, err := exec.Command("sh", "-c", "docker", "container", "ls",...` works perfectly! — Ugty, Nov 22 '21 at 03:41

Why forcing docker to remove all container always give exit status 125

0 Answers0