113 lines
3.8 KiB
Nix
113 lines
3.8 KiB
Nix
{
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config,
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lib,
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pkgs,
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myData,
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...
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}: {
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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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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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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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(with config.mj.services.deployerbot.main;
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lib.mkIf 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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useDefaultShell = true;
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group = "deployerbot-main";
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isSystemUser = true;
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createHome = true;
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uid = uidgid;
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};
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users.groups.deployerbot-main.gid = uidgid;
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systemd.services.deployerbot = {
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description = "Update all known systems";
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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 " " deployDerivations;
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in ''
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set -x
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export GIT_SSH_COMMAND="${pkgs.openssh}/bin/ssh -i ''${CREDENTIALS_DIRECTORY}/ssh-key"
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if [[ ! -d config ]]; then
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${pkgs.git}/bin/git clone ${repo} config
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cd config
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else
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cd config
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${pkgs.git}/bin/git fetch origin
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${pkgs.git}/bin/git reset --hard origin/main
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fi
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OLD_PATH=$PATH
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export PATH=$PATH:${pkgs.git}/bin
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${pkgs.nix}/bin/nix flake update --accept-flake-config --commit-lock-file
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export PATH=$OLD_PATH
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OLD_PATH=$PATH
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export PATH=$PATH:${pkgs.git}/bin:${pkgs.openssh}/bin:${pkgs.nix}/bin
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exec ${pkgs.nix}/bin/nix run .#deploy-rs -- \
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--ssh-opts="-i ''${CREDENTIALS_DIRECTORY}/ssh-key" \
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--ssh-user=deployerbot-follower \
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--targets ${deployDerivationsStr}
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export PATH=$OLD_PATH
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${pkgs.git}/bin/git push origin main
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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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# such nixpkgs commits:
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#
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# Merge release-23.05 into staging-next-23.05
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#
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# happen at around 00:15 UTC. This is *probably* what
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# we want to follow.
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timerConfig.OnCalendar = "*-*-* 00:30:00 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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(with config.mj.services.deployerbot.follower;
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lib.mkIf enable {
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users.users = {
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deployerbot-follower = {
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description = "Deployerbot Follower";
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home = "/var/lib/deployerbot-follower";
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useDefaultShell = true;
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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 = uidgid;
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openssh.authorizedKeys.keys = let
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restrictedPubKey = "from=\"${myData.tailscale_subnet.pattern}\" " + publicKey;
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in [restrictedPubKey];
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};
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};
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users.groups.deployerbot-follower.gid = 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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