1 files changed, 263 insertions, 0 deletions
diff --git a/krebs/3modules/buildbot/master.nix b/krebs/3modules/buildbot/master.nix
new file mode 100644
index 00000000..2f73e44b
--- /dev/null
+++ b/krebs/3modules/buildbot/master.nix
@@ -0,0 +1,263 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+let
+  buildbot = pkgs.buildbot;
+  buildbot-master-config = pkgs.writeText "buildbot-master.cfg" ''
+    # -*- python -*-
+    from buildbot.plugins import *
+    import re
+
+    c = BuildmasterConfig = {}
+
+    c['slaves'] = []
+    # TODO: template potential buildslaves
+    # TODO: set password?
+    slavenames= [ 'testslave' ]
+    for i in slavenames:
+      c['slaves'].append(buildslave.BuildSlave(i, "krebspass"))
+
+    c['protocols'] = {'pb': {'port': 9989}}
+
+    ####### Build Inputs
+    stockholm_repo = 'http://cgit.gum/stockholm'
+    c['change_source'] = []
+    c['change_source'].append(changes.GitPoller(
+            stockholm_repo,
+            workdir='stockholm-poller', branch='master',
+            project='stockholm',
+            pollinterval=120))
+
+    ####### Build Scheduler
+    # TODO: configure scheduler
+    c['schedulers'] = []
+
+    # test the master real quick
+    fast = schedulers.SingleBranchScheduler(
+                                change_filter=util.ChangeFilter(branch="master"),
+                                name="fast-master-test",
+                                builderNames=["fast-tests"])
+
+    force = schedulers.ForceScheduler(
+                                name="force",
+                                builderNames=["full-tests"])
+
+    # files everyone depends on or are part of the share branch
+    def shared_files(change):
+      r =re.compile("^((krebs|share)/.*|Makefile|default.nix)")
+      for file in change.files:
+        if r.match(file):
+          return True
+      return False
+
+    full = schedulers.SingleBranchScheduler(
+                                change_filter=util.ChangeFilter(branch="master"),
+                                fileIsImportant=shared_files,
+                                name="full-master-test",
+                                builderNames=["full-tests"])
+    c['schedulers'] = [ fast, force, full ]
+    ###### The actual build
+    # couple of fast steps:
+    f = util.BuildFactory()
+    ## fetch repo
+    grab_repo = steps.Git(repourl=stockholm_repo, mode='incremental')
+    f.addStep(grab_repo)
+
+    # the dependencies which are used by the test script
+    deps = [ "gnumake", "jq" ]
+    nixshell = ["nix-shell", "-p" ] + deps + [ "--run" ]
+    def addShell(f,**kwargs):
+      f.addStep(steps.ShellCommand(**kwargs))
+
+    addShell(f,name="centos7-eval",env={"LOGNAME": "shared",
+                  "get" : "krebs.deploy",
+                  "filter" : "json"
+                 },
+             command=nixshell + ["make -s eval system=test-centos7"])
+
+    addShell(f,name="wolf-eval",env={"LOGNAME": "shared",
+                  "get" : "krebs.deploy",
+                  "filter" : "json"
+                 },
+             command=nixshell + ["make -s eval system=wolf"])
+
+    c['builders'] = []
+    c['builders'].append(
+        util.BuilderConfig(name="fast-tests",
+          slavenames=slavenames,
+          factory=f))
+
+    # TODO slow build
+    c['builders'].append(
+        util.BuilderConfig(name="full-tests",
+          slavenames=slavenames,
+          factory=f))
+
+    ####### Status of Builds
+    c['status'] = []
+
+    from buildbot.status import html
+    from buildbot.status.web import authz, auth
+    # TODO: configure if http is wanted
+    authz_cfg=authz.Authz(
+        # TODO: configure user/pw
+        auth=auth.BasicAuth([("krebs","bob")]),
+        gracefulShutdown = False,
+        forceBuild = 'auth',
+        forceAllBuilds = 'auth',
+        pingBuilder = False,
+        stopBuild = False,
+        stopAllBuilds = False,
+        cancelPendingBuild = False,
+    )
+    # TODO: configure nginx
+    c['status'].append(html.WebStatus(http_port=8010, authz=authz_cfg))
+
+    from buildbot.status import words
+    ${optionalString (cfg.irc.enable) ''
+      irc = words.IRC("${cfg.irc.server}", "krebsbuild",
+                      # TODO: multiple channels
+                      channels=["${cfg.irc.channel}"],
+                      notify_events={
+                        #'success': 1,
+                        #'failure': 1,
+                        'exception': 1,
+                        'successToFailure': 1,
+                        'failureToSuccess': 1,
+                      }${optionalString cfg.irc.allowForce ",allowForce=True"})
+      c['status'].append(irc)
+      ''}
+
+    ####### PROJECT IDENTITY
+    c['title'] = "Stockholm"
+    c['titleURL'] = "http://krebsco.de"
+
+    #c['buildbotURL'] = "http://buildbot.krebsco.de/"
+    # TODO: configure url
+    c['buildbotURL'] = "http://vbob:8010/"
+
+    ####### DB URL
+    c['db'] = {
+        'db_url' : "sqlite:///state.sqlite",
+    }
+    ${cfg.extraConfig}
+    '';
+
+  cfg = config.krebs.buildbot.master;
+
+  api = {
+    enable = mkEnableOption "Buildbot Master";
+    workDir = mkOption {
+      default = "/var/lib/buildbot/master";
+      type = types.str;
+      description = ''
+        Path to build bot master directory.
+        Will be created on startup.
+      '';
+    };
+    irc = mkOption {
+      default = {};
+      type = types.submodule ({ config, ... }: {
+        options = {
+          enable = mkEnableOption "Buildbot Master IRC Status";
+          channel = mkOption {
+            default = "nix-buildbot-meetup";
+            type = types.str;
+            description = ''
+              irc channel the bot should connect to
+            '';
+          };
+          allowForce = mkOption {
+            default = false;
+            type = types.bool;
+            description = ''
+              Determines if builds can be forced via IRC
+            '';
+          };
+          nick = mkOption {
+            default = "nix-buildbot";
+            type = types.str;
+            description = ''
+              nickname for IRC
+            '';
+          };
+          server = mkOption {
+            default = "irc.freenode.net";
+            type = types.str;
+            description = ''
+              Buildbot Status IRC Server to connect to
+            '';
+          };
+        };
+      });
+    };
+
+    extraConfig = mkOption {
+      default = "";
+      type = types.lines;
+      description = ''
+        extra config appended to the generated master.cfg
+      '';
+    };
+  };
+
+  imp = {
+
+    users.extraUsers.buildbotMaster = {
+      uid = 672626386; #genid buildbotMaster
+      description = "Buildbot Master";
+      home = cfg.workDir;
+      createHome = false;
+    };
+
+    users.extraGroups.buildbotMaster = {
+      gid = 672626386;
+    };
+
+    systemd.services.buildbotMaster = {
+      description = "Buildbot Master";
+      after = [ "network.target" ];
+      wantedBy = [ "multi-user.target" ];
+      path = [ pkgs.git ];
+      serviceConfig = let
+        workdir="${lib.shell.escape cfg.workDir}";
+        # TODO: check if git is the only dep
+      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
+          if [ ! -e ${workdir} ];then
+            mkdir -p ${workdir}
+            ${buildbot}/bin/buildbot create-master -r -l 10 -f ${workdir}
+          fi
+          # always override the master.cfg
+          cp ${buildbot-master-config} ${workdir}/master.cfg
+          # sanity
+          ${buildbot}/bin/buildbot checkconfig ${workdir}
+
+          # TODO: maybe upgrade? not sure about this
+          #       normally we should write buildbot.tac by our own
+          # ${buildbot}/bin/buildbot upgrade-master ${workdir}
+
+          chmod 700 -R ${workdir}
+          chown buildbotMaster:buildbotMaster -R ${workdir}
+        '';
+        ExecStart = "${buildbot}/bin/buildbot start ${workdir}";
+        ExecStop = "${buildbot}/bin/buildbot stop ${workdir}";
+        ExecReload = "${buildbot}/bin/buildbot reconfig ${workdir}";
+        PrivateTmp = "true";
+        User = "buildbotMaster";
+        Restart = "always";
+        RestartSec = "10";
+      };
+    };
+  };
+in
+{
+  options.krebs.buildbot.master = api;
+  config = mkIf cfg.enable imp;
+}