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-rw-r--r--krebs/3modules/buildbot/slave.nix185
1 files changed, 185 insertions, 0 deletions
diff --git a/krebs/3modules/buildbot/slave.nix b/krebs/3modules/buildbot/slave.nix
new file mode 100644
index 000000000..65291f63e
--- /dev/null
+++ b/krebs/3modules/buildbot/slave.nix
@@ -0,0 +1,185 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+let
+ buildbot-slave-init = pkgs.writeText "buildbot-slave.tac" ''
+ import os
+
+ from buildslave.bot import BuildSlave
+ from twisted.application import service
+
+ basedir = '${cfg.workDir}'
+ rotateLength = 10000000
+ maxRotatedFiles = 10
+
+ application = service.Application('buildslave')
+
+ from twisted.python.logfile import LogFile
+ from twisted.python.log import ILogObserver, FileLogObserver
+ logfile = LogFile.fromFullPath(os.path.join(basedir, "twistd.log"), rotateLength=rotateLength,
+ maxRotatedFiles=maxRotatedFiles)
+ application.setComponent(ILogObserver, FileLogObserver(logfile).emit)
+
+ buildmaster_host = '${cfg.masterhost}'
+ # TODO: masterport?
+ port = 9989
+ slavename = '${cfg.username}'
+ passwd = '${cfg.password}'
+ keepalive = 600
+ usepty = 0
+ umask = None
+ maxdelay = 300
+ allow_shutdown = None
+
+ ${cfg.extraConfig}
+
+ s = BuildSlave(buildmaster_host, port, slavename, passwd, basedir,
+ keepalive, usepty, umask=umask, maxdelay=maxdelay,
+ allow_shutdown=allow_shutdown)
+ s.setServiceParent(application)
+ '';
+ default-packages = [ pkgs.git pkgs.bash ];
+ cfg = config.krebs.buildbot.slave;
+
+ api = {
+ enable = mkEnableOption "Buildbot Slave";
+
+ workDir = mkOption {
+ default = "/var/lib/buildbot/slave";
+ type = types.str;
+ description = ''
+ Path to build bot slave directory.
+ Will be created on startup.
+ '';
+ };
+
+ masterhost = mkOption {
+ default = "localhost";
+ type = types.str;
+ description = ''
+ Hostname/IP of the buildbot master
+ '';
+ };
+
+ username = mkOption {
+ type = types.str;
+ description = ''
+ slavename used to authenticate with master
+ '';
+ };
+
+ password = mkOption {
+ type = types.str;
+ description = ''
+ slave password used to authenticate with master
+ '';
+ };
+
+ contact = mkOption {
+ default = "nix slave <buildslave@${config.networking.hostName}>";
+ type = types.str;
+ description = ''
+ contact to be announced by buildslave
+ '';
+ };
+
+ description = mkOption {
+ default = "Nix Generated BuildSlave";
+ type = types.str;
+ description = ''
+ description for hostto be announced by buildslave
+ '';
+ };
+
+ packages = mkOption {
+ default = [ pkgs.git ];
+ type = with types; listOf package;
+ description = ''
+ packages which should be in path for buildslave
+ '';
+ };
+
+ extraEnviron = mkOption {
+ default = {};
+ example = {
+ NIX_PATH = "nixpkgs=/path/to/my/nixpkgs";
+ };
+ type = types.attrsOf types.str;
+ description = ''
+ extra environment variables to be provided to the buildslave service
+ if you need nixpkgs, e.g. for running nix-shell you can set NIX_PATH here.
+ '';
+ };
+
+ extraConfig = mkOption {
+ default = "";
+ type = types.lines;
+ example = ''
+ port = 443
+ keepalive = 600
+ '';
+ description = ''
+ extra config evaluated before calling BuildSlave init in .tac file
+ '';
+ };
+ };
+
+ imp = {
+
+ users.extraUsers.buildbotSlave = {
+ uid = 1408105834; #genid buildbotMaster
+ description = "Buildbot Slave";
+ home = cfg.workDir;
+ createHome = false;
+ };
+
+ users.extraGroups.buildbotSlave = {
+ gid = 1408105834;
+ };
+
+ systemd.services."buildbotSlave-${cfg.username}-${cfg.masterhost}" = {
+ description = "Buildbot Slave for ${cfg.username}@${cfg.masterhost}";
+ after = [ "network.target" ];
+ wantedBy = [ "multi-user.target" ];
+ path = default-packages ++ cfg.packages;
+
+ environment = {
+ NIX_REMOTE="daemon";
+ } // cfg.extraEnviron;
+
+ serviceConfig = let
+ workdir = "${lib.shell.escape cfg.workDir}";
+ contact = "${lib.shell.escape cfg.contact}";
+ description = "${lib.shell.escape cfg.description}";
+ buildbot = pkgs.buildbot-slave;
+ # TODO:make this
+ in {
+ PermissionsStartOnly = true;
+ Type = "forking";
+ PIDFile = "${workdir}/twistd.pid";
+ # TODO: maybe also prepare buildbot.tac?
+ ExecStartPre = pkgs.writeScript "buildbot-master-init" ''
+ #!/bin/sh
+ set -efux
+ mkdir -p ${workdir}/info
+ cp ${buildbot-slave-init} ${workdir}/buildbot.tac
+ echo ${contact} > ${workdir}/info/admin
+ echo ${description} > ${workdir}/info/host
+
+ chown buildbotSlave:buildbotSlave -R ${workdir}
+ chmod 700 -R ${workdir}
+ '';
+ ExecStart = "${buildbot}/bin/buildslave start ${workdir}";
+ ExecStop = "${buildbot}/bin/buildslave stop ${workdir}";
+ PrivateTmp = "true";
+ User = "buildbotSlave";
+ Restart = "always";
+ RestartSec = "10";
+ };
+ };
+ };
+in
+{
+ options.krebs.buildbot.slave = api;
+ config = mkIf cfg.enable imp;
+}