diff options
Diffstat (limited to 'nixos/modules/services/continuous-integration/hydra/default.nix')
| -rw-r--r-- | nixos/modules/services/continuous-integration/hydra/default.nix | 64 |
1 files changed, 27 insertions, 37 deletions
diff --git a/nixos/modules/services/continuous-integration/hydra/default.nix b/nixos/modules/services/continuous-integration/hydra/default.nix index 502a5898a5d..0103cd723d2 100644 --- a/nixos/modules/services/continuous-integration/hydra/default.nix +++ b/nixos/modules/services/continuous-integration/hydra/default.nix @@ -37,8 +37,6 @@ let haveLocalDB = cfg.dbi == localDB; - inherit (config.system) stateVersion; - hydra-package = let makeWrapperArgs = concatStringsSep " " (mapAttrsToList (key: value: "--set \"${key}\" \"${value}\"") hydraEnv); @@ -91,12 +89,18 @@ in example = "dbi:Pg:dbname=hydra;host=postgres.example.org;user=foo;"; description = '' The DBI string for Hydra database connection. + + NOTE: Attempts to set `application_name` will be overridden by + `hydra-TYPE` (where TYPE is e.g. `evaluator`, `queue-runner`, + etc.) in all hydra services to more easily distinguish where + queries are coming from. ''; }; package = mkOption { type = types.package; - defaultText = "pkgs.hydra"; + default = pkgs.hydra-unstable; + defaultText = "pkgs.hydra-unstable"; description = "The Hydra package."; }; @@ -225,34 +229,6 @@ in config = mkIf cfg.enable { - warnings = optional (cfg.package.migration or false) '' - You're currently deploying an older version of Hydra which is needed to - make some required database changes[1]. As soon as this is done, it's recommended - to run `hydra-backfill-ids` and set `services.hydra.package` to `pkgs.hydra-unstable` - after that. - - [1] https://github.com/NixOS/hydra/pull/711 - ''; - - services.hydra.package = with pkgs; - mkDefault ( - if pkgs ? hydra - then throw '' - The Hydra package doesn't exist anymore in `nixpkgs`! It probably exists - due to an overlay. To upgrade Hydra, you need to take two steps as some - bigger changes in the database schema were implemented recently[1]. You first - need to deploy `pkgs.hydra-migration`, run `hydra-backfill-ids` on the server - and then deploy `pkgs.hydra-unstable`. - - If you want to use `pkgs.hydra` from your overlay, please set `services.hydra.package` - explicitly to `pkgs.hydra` and make sure you know what you're doing. - - [1] https://github.com/NixOS/hydra/pull/711 - '' - else if versionOlder stateVersion "20.03" then hydra-migration - else hydra-unstable - ); - users.groups.hydra = { gid = config.ids.gids.hydra; }; @@ -260,7 +236,7 @@ in users.users.hydra = { description = "Hydra"; group = "hydra"; - createHome = true; + # We don't enable `createHome` here because the creation of the home directory is handled by the hydra-init service below. home = baseDir; useDefaultShell = true; uid = config.ids.uids.hydra; @@ -304,6 +280,8 @@ in keep-outputs = true keep-derivations = true + + '' + optionalString (versionOlder (getVersion config.nix.package.out) "2.4pre") '' # The default (`true') slows Nix down a lot since the build farm # has so many GC roots. gc-check-reachability = false @@ -313,7 +291,9 @@ in { wantedBy = [ "multi-user.target" ]; requires = optional haveLocalDB "postgresql.service"; after = optional haveLocalDB "postgresql.service"; - environment = env; + environment = env // { + HYDRA_DBI = "${env.HYDRA_DBI};application_name=hydra-init"; + }; preStart = '' mkdir -p ${baseDir} chown hydra.hydra ${baseDir} @@ -368,7 +348,9 @@ in { wantedBy = [ "multi-user.target" ]; requires = [ "hydra-init.service" ]; after = [ "hydra-init.service" ]; - environment = serverEnv; + environment = serverEnv // { + HYDRA_DBI = "${serverEnv.HYDRA_DBI};application_name=hydra-server"; + }; restartTriggers = [ hydraConf ]; serviceConfig = { ExecStart = @@ -390,6 +372,7 @@ in environment = env // { PGPASSFILE = "${baseDir}/pgpass-queue-runner"; # grrr IN_SYSTEMD = "1"; # to get log severity levels + HYDRA_DBI = "${env.HYDRA_DBI};application_name=hydra-queue-runner"; }; serviceConfig = { ExecStart = "@${hydra-package}/bin/hydra-queue-runner hydra-queue-runner -v"; @@ -409,7 +392,9 @@ in after = [ "hydra-init.service" "network.target" ]; path = with pkgs; [ hydra-package nettools jq ]; restartTriggers = [ hydraConf ]; - environment = env; + environment = env // { + HYDRA_DBI = "${env.HYDRA_DBI};application_name=hydra-evaluator"; + }; serviceConfig = { ExecStart = "@${hydra-package}/bin/hydra-evaluator hydra-evaluator"; User = "hydra"; @@ -421,7 +406,9 @@ in systemd.services.hydra-update-gc-roots = { requires = [ "hydra-init.service" ]; after = [ "hydra-init.service" ]; - environment = env; + environment = env // { + HYDRA_DBI = "${env.HYDRA_DBI};application_name=hydra-update-gc-roots"; + }; serviceConfig = { ExecStart = "@${hydra-package}/bin/hydra-update-gc-roots hydra-update-gc-roots"; User = "hydra"; @@ -432,7 +419,9 @@ in systemd.services.hydra-send-stats = { wantedBy = [ "multi-user.target" ]; after = [ "hydra-init.service" ]; - environment = env; + environment = env // { + HYDRA_DBI = "${env.HYDRA_DBI};application_name=hydra-send-stats"; + }; serviceConfig = { ExecStart = "@${hydra-package}/bin/hydra-send-stats hydra-send-stats"; User = "hydra"; @@ -446,6 +435,7 @@ in restartTriggers = [ hydraConf ]; environment = env // { PGPASSFILE = "${baseDir}/pgpass-queue-runner"; + HYDRA_DBI = "${env.HYDRA_DBI};application_name=hydra-notify"; }; serviceConfig = { ExecStart = "@${hydra-package}/bin/hydra-notify hydra-notify"; |