Files
athenix/sw/builders/services.nix
Hunter Halloran c2664a11a5 gh runner cleanup
2025-12-17 11:12:34 -05:00

75 lines
2.7 KiB
Nix

{
config,
lib,
pkgs,
...
}:
with lib;
let
cfg = config.ugaif.sw;
builderCfg = cfg.builders;
in
mkIf builderCfg.githubRunner.enable {
services.github-runners.${builderCfg.githubRunner.name} = {
enable = true;
url = builderCfg.githubRunner.url;
tokenFile = builderCfg.githubRunner.tokenFile;
extraLabels = builderCfg.githubRunner.extraLabels;
user = builderCfg.githubRunner.user;
workDir = builderCfg.githubRunner.workDir;
replace = true;
};
# Configure the systemd service for better handling of cleanup and restarts
systemd.services."github-runner-${builderCfg.githubRunner.name}" = {
unitConfig = {
# Only start the service if token file exists
# This allows graceful deployment before the token is manually installed
ConditionPathExists = builderCfg.githubRunner.tokenFile;
};
serviceConfig = {
# Give the service more time to stop cleanly
TimeoutStopSec = 60;
# Restart on failure, but not immediately
RestartSec = 10;
# Override the unconfigure script to be failure-tolerant
# The '-' prefix means the command failure won't cause the service to fail
ExecStartPre = mkForce [
(
let
unconfigureScript = pkgs.writeShellScript "github-runner-${builderCfg.githubRunner.name}-unconfigure.sh" ''
set +e # Don't exit on error
runnerDir="${builderCfg.githubRunner.workDir}/${builderCfg.githubRunner.name}"
# Try to remove the runner registration if it exists
if [ -e "$runnerDir" ]; then
echo "Cleaning up runner directory: $runnerDir"
# Try to remove contents, but don't fail if busy
find "$runnerDir" -mindepth 1 -maxdepth 1 -exec rm -rf {} + 2>/dev/null || true
# If directory still has content but we couldn't delete it, just warn
if [ "$(ls -A $runnerDir 2>/dev/null)" ]; then
echo "Warning: Could not fully clean $runnerDir (may be in use)"
echo "This is normal on first deployment or if runner is already running"
fi
fi
exit 0 # Always succeed
'';
in
"-${unconfigureScript} ${builderCfg.githubRunner.workDir}/${builderCfg.githubRunner.name} ${builderCfg.githubRunner.workDir} /var/log/github-runner/${builderCfg.githubRunner.name}"
)
];
};
};
# Ensure the work directory exists with proper ownership
systemd.tmpfiles.rules = [
"d ${builderCfg.githubRunner.workDir} 0755 ${builderCfg.githubRunner.user} ${builderCfg.githubRunner.user} -"
];
}