[Nix-dev] Add /var/setuid-wrappers to $PATH for systemd service

[Bjørn Forsman]

Hi all,

How does one put /var/setuid-wrappers first in $PATH for a systemd service?

The option systemd.services.<name>.path adds /bin and /sbin to the
given paths, so it cannot be used.

Another possibility could be using
systemd.services.<name>.environment.PATH. But I failed to make it
work:

  1. systemd.services.jenkins.environment.PATH = "/var/setuid-wrappers";
  2. systemd.services.jenkins.environment = pkgs.lib.mkForce { PATH =
"/var/setuid-wrappers"; };

1) is completely ignored (nixos module wins over configuration.nix)
and 2) sort-of works...but now I have to rebuild the full PATH
manually (not a good idea!)

What I really want is for the value from configuration.nix to be
merged (preferrably in front) of the value(s) from nixos modules.

Any suggestions?

Best regards,
Bjørn Forsman