Ported/merged properties from the TUD configuration's hydra-module
This commit is contained in:
Sander van der Burg
parent
f4ae655ee6
commit
d8e2dfc0ed
137
hydra-module.nix
137
hydra-module.nix
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@ -13,16 +13,19 @@ let
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max_servers 25
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'';
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env = ''export NIX_REMOTE=daemon ''
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+ ''HYDRA_DBI="${cfg.dbi}" ''
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+ ''HYDRA_CONFIG=${cfg.baseDir}/data/hydra.conf ''
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+ ''HYDRA_DATA=${cfg.baseDir}/data ''
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+ ''HYDRA_PORT="${toString cfg.port}" ''
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+ (if cfg.logo != null
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then ''HYDRA_LOGO="${cfg.logo}" ''
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else "")
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+ ''HYDRA_TRACKER="${cfg.tracker}" ;'';
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env =
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{ NIX_REMOTE = "daemon";
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HYDRA_DBI = cfg.dbi;
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HYDRA_CONFIG = "${cfg.baseDir}/data/hydra.conf";
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HYDRA_DATA = "${cfg.baseDir}/data";
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HYDRA_PORT = "${toString cfg.port}";
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OPENSSL_X509_CERT_FILE = "/etc/ssl/certs/ca-bundle.crt";
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};
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serverEnv = env //
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{ HYDRA_LOGO = if cfg.logo != null then cfg.logo else "";
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HYDRA_TRACKER = cfg.tracker;
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};
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in
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{
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@ -60,7 +63,7 @@ in
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};
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hydra = mkOption {
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default = pkgs.hydra;
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#default = pkgs.hydra;
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description = ''
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Location of hydra
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'';
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@ -122,6 +125,13 @@ in
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'';
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};
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useWAL = mkOption {
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default = true;
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description = ''
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Whether to use SQLite's Write-Ahead Logging, which may improve performance.
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'';
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};
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};
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};
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@ -157,45 +167,70 @@ in
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build-poll-interval = 10
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use-sqlite-wal = false
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# Online log compression makes it impossible to get the tail of
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# builds that are in progress.
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build-compress-log = false
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use-sqlite-wal = ${if cfg.useWAL then "true" else "false"}
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'';
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jobs.hydra_init =
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{ description = "hydra-init";
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startOn = "started network-interfaces";
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preStart = ''
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jobs."hydra-init" =
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{ wantedBy = [ "multi-user.target" ];
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script = ''
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mkdir -p ${cfg.baseDir}/data
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chown ${cfg.user} ${cfg.baseDir}/data
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ln -sf ${hydraConf} ${cfg.baseDir}/data/hydra.conf
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'';
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exec = ''
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echo done
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'';
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task = true;
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};
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jobs.hydra_server =
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{ description = "hydra-server";
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startOn = if cfg.autoStart then "started network-interfaces hydra-init" else "never";
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exec = ''
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${pkgs.su}/bin/su - ${cfg.user} -c '${env} ${cfg.hydra}/bin/hydra-server > ${cfg.baseDir}/data/server.log 2>&1'
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'';
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systemd.services."hydra-server" =
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{ wantedBy = [ "multi-user.target" ];
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wants = [ "hydra-init.service" ];
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after = [ "hydra-init.service" ];
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environment = serverEnv;
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serviceConfig =
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{ ExecStart = "@${cfg.hydra}/bin/hydra-server hydra-server -f -h \* --max_spare_servers 5 --max_servers 25 --max_requests 100";
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User = cfg.user;
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Restart = "always";
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};
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};
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jobs.hydra_queue_runner =
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{ description = "hydra-queue-runner";
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startOn = if cfg.autoStart then "started network-interfaces hydra-init" else "never";
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preStart = "${pkgs.su}/bin/su - ${cfg.user} -c '${env} ${cfg.hydra}/bin/hydra-queue-runner --unlock'";
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exec = ''
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${pkgs.su}/bin/su - ${cfg.user} -c '${env} nice -n 8 ${cfg.hydra}/bin/hydra-queue-runner > ${cfg.baseDir}/data/queue-runner.log 2>&1'
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'';
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systemd.services."hydra-queue-runner" =
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{ wantedBy = [ "multi-user.target" ];
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wants = [ "hydra-init.service" ];
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after = [ "hydra-init.service" "network.target" ];
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path = [ pkgs.nettools pkgs.ssmtp ];
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environment = env;
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serviceConfig =
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{ ExecStartPre = "${cfg.hydra}/bin/hydra-queue-runner --unlock";
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ExecStart = "@${cfg.hydra}/bin/hydra-queue-runner hydra-queue-runner";
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User = cfg.user;
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Restart = "always";
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};
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};
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jobs.hydra_evaluator =
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{ description = "hydra-evaluator";
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startOn = if cfg.autoStart then "started network-interfaces hydra-init" else "never";
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exec = ''
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${pkgs.su}/bin/su - ${cfg.user} -c '${env} nice -n 5 ${cfg.hydra}/bin/hydra-evaluator > ${cfg.baseDir}/data/evaluator.log 2>&1'
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'';
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systemd.services."hydra-evaluator" =
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{ wantedBy = [ "multi-user.target" ];
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wants = [ "hydra-init.service" ];
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after = [ "hydra-init.service" "network.target" ];
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path = [ pkgs.nettools pkgs.ssmtp ];
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environment = env;
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serviceConfig =
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{ ExecStart = "@${cfg.hydra}/bin/hydra-evaluator hydra-evaluator";
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User = cfg.user;
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Restart = "always";
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};
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};
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systemd.services."hydra-update-gc-roots" =
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{ wants = [ "hydra-init.service" ];
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after = [ "hydra-init.service" ];
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environment = env;
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serviceConfig =
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{ ExecStart = "@${cfg.hydra}/bin/hydra-update-gc-roots hydra-update-gc-roots";
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User = cfg.user;
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};
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};
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services.cron.systemCronJobs =
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@ -206,23 +241,11 @@ in
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''
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#! /bin/sh
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if [ $(($(stat -f -c '%a' /nix/store) * $(stat -f -c '%S' /nix/store))) -lt $((${toString cfg.minimumDiskFree} * 1024**3)) ]; then
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stop hydra_queue_runner
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stop hydra_queue_runner
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fi
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if [ $(($(stat -f -c '%a' /nix/store) * $(stat -f -c '%S' /nix/store))) -lt $((${toString cfg.minimumDiskFreeEvaluator} * 1024**3)) ]; then
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stop hydra_evaluator
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fi
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if [ $(($(stat -f -c '%a' /nix/store) * $(stat -f -c '%S' /nix/store))) -lt $((${toString cfg.minimumDiskFreeEvaluator} * 1024**3)) ]; then
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stop hydra_evaluator
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fi
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'';
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collect = pkgs.writeScript "collect-some-garbage"
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# Arrange to always have at least 100 GiB free.
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'' #!/bin/sh -e
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available="$(df -B1 /nix/store | tail -n 1 | awk '{ print $4 }')"
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target="$((100 * 1024**3))"
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to_free="$(($available > $target ? 200 * 1024**2 : $target - $available))"
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echo "$available B available, and targeting $target B available"
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echo "thus, freeing $to_free B"
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exec "${pkgs.nix}/bin/nix-collect-garbage" --max-freed "$to_free"
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'';
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compressLogs = pkgs.writeScript "compress-logs" ''
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@ -231,13 +254,9 @@ in
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find /nix/var/log/nix/drvs -type f -a ! -newer r -name '*.drv' | xargs bzip2 -v
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'';
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in
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[ "15 03 * * * root ${collect} &> ${cfg.baseDir}/data/gc.log"
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"15 13 * * * root ${collect} &> ${cfg.baseDir}/data/gc.log"
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"*/5 * * * * root ${checkSpace} &> ${cfg.baseDir}/data/checkspace.log"
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[ "*/5 * * * * root ${checkSpace} &> ${cfg.baseDir}/data/checkspace.log"
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"15 5 * * * root ${compressLogs} &> ${cfg.baseDir}/data/compress.log"
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"15 02 * * * ${cfg.user} ${env} ${cfg.hydra}/bin/hydra-update-gc-roots &> ${cfg.baseDir}/data/gc-roots.log"
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"15 2 * * * root ${pkgs.systemd}/bin/systemctl start hydra-update-gc-roots.service"
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];
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};
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}
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