139 lines
4.3 KiB
Nix
139 lines
4.3 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}: let
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mkOptional = {
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derivationTarget,
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pingTarget,
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}: ''
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if ${pkgs.inetutils}/bin/ping -c 1 ${pingTarget}; then
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${pkgs.deploy-rs.deploy-rs}/bin/deploy \
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--ssh-opts="-i ''${CREDENTIALS_DIRECTORY}/ssh-key" \
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--ssh-user=deployerbot-follower \
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--confirm-timeout 60 \
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--targets ${derivationTarget} -- \
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--accept-flake-config || EXITCODE=1
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fi
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'';
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in {
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options.mj.services.deployerbot.main = with lib.types; {
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enable = lib.mkEnableOption "Enable system updater orchestrator";
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deployDerivations = lib.mkOption {type = listOf str;};
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deployIfPresent = lib.mkOption {
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type = listOf (submodule {
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options = {
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derivationTarget = lib.mkOption {type = str;};
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pingTarget = lib.mkOption {type = str;};
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};
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});
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default = [];
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};
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uidgid = lib.mkOption {type = int;};
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repo = lib.mkOption {type = str;};
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};
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options.mj.services.deployerbot.follower = with lib.types; {
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enable = lib.mkEnableOption "Allow system to be deployed with deployerbot";
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sshAllowSubnets = lib.mkOption {type = listOf str;};
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publicKey = lib.mkOption {type = str;};
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uidgid = lib.mkOption {type = int;};
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};
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config = lib.mkMerge [
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(let
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cfg = config.mj.services.deployerbot.main;
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in
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lib.mkIf cfg.enable {
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# TODO: git config --global user.email bot@jakstys.lt
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users.users.deployerbot-main = {
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description = "Deployerbot Main";
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home = "/var/lib/deployerbot-main";
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shell = "/bin/sh";
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group = "deployerbot-main";
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isSystemUser = true;
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createHome = true;
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uid = cfg.uidgid;
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};
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users.groups.deployerbot-main.gid = cfg.uidgid;
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systemd.services.deployerbot = {
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description = "Update all known systems";
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environment = {TZ = "UTC";};
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path = [pkgs.git pkgs.openssh pkgs.nix];
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restartIfChanged = false;
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serviceConfig = {
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Type = "oneshot";
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User = "deployerbot-main";
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WorkingDirectory = config.users.users.deployerbot-main.home;
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LoadCredential = ["ssh-key:/etc/ssh/ssh_host_ed25519_key"];
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};
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script = let
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deployDerivationsStr = builtins.concatStringsSep " " cfg.deployDerivations;
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in ''
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set -x
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export GIT_SSH_COMMAND="ssh -i ''${CREDENTIALS_DIRECTORY}/ssh-key"
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if [[ ! -d config ]]; then
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git clone ${cfg.repo} config
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cd config
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else
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cd config
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git fetch origin
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git reset --hard origin/main
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fi
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nix flake update --accept-flake-config --commit-lock-file
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${pkgs.deploy-rs.deploy-rs}/bin/deploy \
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--ssh-opts="-i ''${CREDENTIALS_DIRECTORY}/ssh-key" \
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--ssh-user=deployerbot-follower \
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--confirm-timeout 60 \
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--targets ${deployDerivationsStr} -- \
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--accept-flake-config
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# Optional deployments
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EXITCODE=0
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${lib.concatLines (map mkOptional cfg.deployIfPresent)}
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# done
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git push origin main
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exit $EXITCODE
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'';
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};
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systemd.timers.deployerbot = {
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description = "deployerbot-main timer";
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wantedBy = ["timers.target"];
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timerConfig.OnCalendar = "*-*-* 23:30:00 UTC";
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};
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mj.base.unitstatus.units = ["deployerbot"];
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nix.settings.trusted-users = ["deployerbot-main"];
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})
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(let
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cfg = config.mj.services.deployerbot.follower;
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in
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lib.mkIf cfg.enable {
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users.users.deployerbot-follower = {
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description = "Deployerbot Follower";
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home = "/var/lib/deployerbot-follower";
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shell = "/bin/sh";
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group = "deployerbot-follower";
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extraGroups = ["wheel"];
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isSystemUser = true;
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createHome = true;
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uid = cfg.uidgid;
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openssh.authorizedKeys.keys = let
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restrictedPubKey = "from=\"${builtins.concatStringsSep "," cfg.sshAllowSubnets}\" " + cfg.publicKey;
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in [restrictedPubKey];
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};
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users.groups.deployerbot-follower.gid = cfg.uidgid;
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nix.settings.trusted-users = ["deployerbot-follower"];
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})
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];
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}
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