Nixpkgs: NixOS services.gitlab-runner builds fail

[mightybyte]

Issue description

When I enable gitlab-runner and trigger a build from gitlab I get the following error:

Failed to start process: exec: "su": executable file not found in $PATH

I was able to fix this by adding the following to my configuration.nix:

systemd.services.gitlab-runner.path = [ "/run/wrappers" ];

But a different approach should probably be used to fix services.gitlab-runner out of the box.

Steps to reproduce

Add the following to configuration.nix:

  services.gitlab-runner = {
    enable = true;
    configFile = /path/to/config.toml;
  };

You can also use an appropriate configOptions field instead of configFile. Get it connected to a gitlab project and trigger a build. The build immediately fails with the above error message.

Technical details

• system: "x86_64-linux"
• host os: Linux 4.14.76, NixOS, 18.09.910.c15e342304a (Jellyfish)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.1.1
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

[bachp]

@mightybyte What executor are you using? I'm only tested this with the docker executor recently.

[mightybyte]

I was using the shell executor.

[adamgay]

I'm hitting an identical issue, identical setup. Docker executor runs well, but not exactly what I need.

The workaround listed also allows me to use shell.

[diamondburned]

Bump, this needs a fix asap. I can't figure out a way to use packages with path set.

[Fresheyeball]

In case anyone shows up here and wants an easy solution. I forked @arianvp 's work, so that it would work with the shell executor and be more specialized to nix based builds.

https://gitlab.com/Fresheyeball/nixos-gitlab-runner

[drets]

I faced the same error message and hotfixed it by adding pkgs.su.

So, I could run my nodejs tests using:

    gitlab-runner = {
      enable = true;
      configFile = /etc/gitlab-runner/config.toml;
      packages = [ pkgs.bash pkgs.su pkgs.nodejs-12_x ];
    };

I hope it may save time for someone.

[1000101]

If anyone's still hitting this issue:

systemd.services.gitlab-runner.path = [ "/run/wrappers" ];

solves the problem.

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