nixops/modules/buildbot/default.nix

   1 { lib, pkgs, config, myconfig, mylibs, ... }:
   2 let
   3   varDir = "/var/lib/buildbot";
   4   buildbot_common = pkgs.python3Packages.buildPythonPackage rec {
   5     name = "buildbot_common";
   6     src = ./common;
   7     format = "other";
   8     installPhase = ''
   9       mkdir -p $out/${pkgs.python3.pythonForBuild.sitePackages}
  10       cp -a $src $out/${pkgs.python3.pythonForBuild.sitePackages}/buildbot_common
  11       '';
  12   };
  13   buildbot = pkgs.python3Packages.buildbot-full;
  14 in
  15 {
  16   options = {
  17     services.buildbot.enable = lib.mkOption {
  18       type = lib.types.bool;
  19       default = false;
  20       description = ''
  21         Whether to enable buildbot.
  22       '';
  23     };
  24   };
  25
  26   config = lib.mkIf config.services.buildbot.enable {
  27     ids.uids.buildbot = myconfig.env.buildbot.user.uid;
  28     ids.gids.buildbot = myconfig.env.buildbot.user.gid;
  29
  30     users.groups.buildbot.gid = config.ids.gids.buildbot;
  31     users.users.buildbot = {
  32       name = "buildbot";
  33       uid = config.ids.uids.buildbot;
  34       group = "buildbot";
  35       description = "Buildbot user";
  36       home = varDir;
  37       extraGroups = [ "keys" ];
  38     };
  39
  40     services.myWebsites.tools.vhostConfs.git.extraConfig = lib.attrsets.mapAttrsToList (k: project: ''
  41         RedirectMatch permanent "^/buildbot/${project.name}$" "/buildbot/${project.name}/"
  42         RewriteEngine On
  43         RewriteRule ^/buildbot/${project.name}/ws(.*)$   unix:///run/buildbot/${project.name}.sock|ws://git.immae.eu/ws$1 [P,NE,QSA,L]
  44         ProxyPass /buildbot/${project.name}/             unix:///run/buildbot/${project.name}.sock|http://${project.name}-git.immae.eu/
  45         ProxyPassReverse /buildbot/${project.name}/      unix:///run/buildbot/${project.name}.sock|http://${project.name}-git.immae.eu/
  46         <Location /buildbot/${project.name}/>
  47           Use LDAPConnect
  48           Require ldap-group cn=users,ou=${project.name},cn=buildbot,ou=services,dc=immae,dc=eu
  49
  50           SetEnvIf X-Url-Scheme https HTTPS=1
  51           ProxyPreserveHost On
  52         </Location>
  53         <Location /buildbot/${project.name}/change_hook/base>
  54           <RequireAny>
  55             Require local
  56             Require ldap-group cn=users,ou=${project.name},cn=buildbot,ou=services,dc=immae,dc=eu
  57             Include /var/secrets/buildbot/${project.name}/webhook-httpd-include
  58           </RequireAny>
  59         </Location>
  60         '') myconfig.env.buildbot.projects;
  61
  62     system.activationScripts = lib.attrsets.mapAttrs' (k: project: lib.attrsets.nameValuePair "buildbot-${project.name}" {
  63       deps = [ "users" "wrappers" ];
  64       text = ''
  65       install -m 0755 -o buildbot -g buildbot -d /run/buildbot/
  66       install -m 0755 -o buildbot -g buildbot -d ${varDir}
  67       ${project.activationScript}
  68       '';
  69     }) myconfig.env.buildbot.projects;
  70
  71     secrets.keys = (
  72       lib.lists.flatten (
  73         lib.attrsets.mapAttrsToList (k: project:
  74           lib.attrsets.mapAttrsToList (k: v:
  75             {
  76               permissions = "0600";
  77               user = "buildbot";
  78               group = "buildbot";
  79               text = v;
  80               dest = "buildbot/${project.name}/${k}";
  81             }
  82           ) project.secrets
  83           ++ [
  84             {
  85               permissions = "0600";
  86               user = "wwwrun";
  87               group = "wwwrun";
  88               text = lib.optionalString (lib.attrsets.hasAttr "webhookTokens" project) ''
  89                 Require expr "req('Access-Key') in { ${builtins.concatStringsSep ", " (map (x: "'${x}'") project.webhookTokens)} }"
  90                 '';
  91               dest = "buildbot/${project.name}/webhook-httpd-include";
  92             }
  93           ]
  94         ) myconfig.env.buildbot.projects
  95       )
  96     ) ++ [
  97       {
  98         permissions = "0600";
  99         user = "buildbot";
 100         group = "buildbot";
 101         text = myconfig.env.buildbot.ldap.password;
 102         dest = "buildbot/ldap";
 103       }
 104       {
 105         permissions = "0600";
 106         user = "buildbot";
 107         group = "buildbot";
 108         text = builtins.readFile "${myconfig.privateFiles}/buildbot_ssh_key";
 109         dest = "buildbot/ssh_key";
 110       }
 111     ];
 112
 113     systemd.services = lib.attrsets.mapAttrs' (k: project: lib.attrsets.nameValuePair "buildbot-${project.name}" {
 114       description = "Buildbot Continuous Integration Server ${project.name}.";
 115       after = [ "network-online.target" ];
 116       wantedBy = [ "multi-user.target" ];
 117       path = project.packages pkgs ++ (project.pythonPackages buildbot.pythonModule pkgs);
 118       preStart = let
 119         master-cfg = "${buildbot_common}/${pkgs.python3.pythonForBuild.sitePackages}/buildbot_common/master.cfg";
 120         tac_file = pkgs.writeText "buildbot.tac" ''
 121             import os
 122
 123             from twisted.application import service
 124             from buildbot.master import BuildMaster
 125
 126             basedir = '${varDir}/${project.name}'
 127             rotateLength = 10000000
 128             maxRotatedFiles = 10
 129             configfile = '${master-cfg}'
 130
 131             # Default umask for server
 132             umask = None
 133
 134             # if this is a relocatable tac file, get the directory containing the TAC
 135             if basedir == '.':
 136                 import os
 137                 basedir = os.path.abspath(os.path.dirname(__file__))
 138
 139             # note: this line is matched against to check that this is a buildmaster
 140             # directory; do not edit it.
 141             application = service.Application('buildmaster')
 142             from twisted.python.logfile import LogFile
 143             from twisted.python.log import ILogObserver, FileLogObserver
 144             logfile = LogFile.fromFullPath(os.path.join(basedir, "twistd.log"), rotateLength=rotateLength,
 145                                             maxRotatedFiles=maxRotatedFiles)
 146             application.setComponent(ILogObserver, FileLogObserver(logfile).emit)
 147
 148             m = BuildMaster(basedir, configfile, umask)
 149             m.setServiceParent(application)
 150             m.log_rotation.rotateLength = rotateLength
 151             m.log_rotation.maxRotatedFiles = maxRotatedFiles
 152           '';
 153       in ''
 154       if [ ! -f ${varDir}/${project.name}/buildbot.tac ]; then
 155         ${buildbot}/bin/buildbot create-master -c "${master-cfg}" "${varDir}/${project.name}"
 156         rm -f ${varDir}/${project.name}/master.cfg.sample
 157         rm -f ${varDir}/${project.name}/buildbot.tac
 158       fi
 159       ln -sf ${tac_file} ${varDir}/${project.name}/buildbot.tac
 160       # different buildbots may be trying that simultaneously, add the || true to avoid complaining in case of race
 161       install -Dm600 -o buildbot -g buildbot -T /var/secrets/buildbot/ssh_key ${varDir}/buildbot_key || true
 162       buildbot_secrets=${varDir}/${project.name}/secrets
 163       install -m 0700 -o buildbot -g buildbot -d $buildbot_secrets
 164       install -Dm600 -o buildbot -g buildbot -T /var/secrets/buildbot/ldap $buildbot_secrets/ldap
 165       ${builtins.concatStringsSep "\n" (lib.attrsets.mapAttrsToList
 166         (k: v: "install -Dm600 -o buildbot -g buildbot -T /var/secrets/buildbot/${project.name}/${k} $buildbot_secrets/${k}") project.secrets
 167       )}
 168       '';
 169       environment = let
 170         project_env = lib.attrsets.mapAttrs' (k: v: lib.attrsets.nameValuePair "BUILDBOT_${k}" v) project.environment;
 171         buildbot_config = pkgs.python3Packages.buildPythonPackage (rec {
 172           name = "buildbot_config-${project.name}";
 173           src = ./projects + "/${project.name}";
 174           format = "other";
 175           installPhase = ''
 176             mkdir -p $out/${pkgs.python3.pythonForBuild.sitePackages}
 177             cp -a $src $out/${pkgs.python3.pythonForBuild.sitePackages}/buildbot_config
 178             '';
 179         });
 180         HOME = "${varDir}/${project.name}";
 181         PYTHONPATH = "${buildbot.pythonModule.withPackages (self: project.pythonPackages self pkgs ++ [
 182           pkgs.python3Packages.wokkel
 183           pkgs.python3Packages.treq pkgs.python3Packages.ldap3 buildbot
 184           pkgs.python3Packages.buildbot-worker
 185           buildbot_common buildbot_config
 186         ])}/${buildbot.pythonModule.sitePackages}${if project.pythonPathHome then ":${varDir}/${project.name}/.local/${pkgs.python3.pythonForBuild.sitePackages}" else ""}";
 187       in project_env // { inherit PYTHONPATH HOME; };
 188
 189       serviceConfig = {
 190         Type = "forking";
 191         User = "buildbot";
 192         Group = "buildbot";
 193         SupplementaryGroups = "keys";
 194         WorkingDirectory = "${varDir}/${project.name}";
 195         ExecStart = "${buildbot}/bin/buildbot start";
 196       };
 197     }) myconfig.env.buildbot.projects;
 198   };
 199 }