Describe the bug

My server uses an encrypted filesystem /data that I have to mount manually after reboot.
Gitolite is configured to use /data/gitolite.
I have configured gitolite-init to only run once /data is mounted.
Mounting of /data always fails, as gitolite uses systemd.tmpfiles.rules to generate directories and thus the mountpoint is not empty. Manual cleanup is required every time.

Expected behavior
Gitolite should create its directories in gitolite-init.service.

Additional context
systemd-tmpfiles-setup.service runs before the system is fully initialized, so I cannot delay that service.

Notify maintainers

Metadata

• system: "x86_64-linux"
• host os: Linux 5.4.50, NixOS, 20.03.2451.74f2559a69f (Markhor)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.3.6
• channels(root): "nixos-20.03.2451.74f2559a69f"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
# a list of nixos modules affected by the problem
module: gitolite