1 files changed, 237 insertions, 0 deletions

diff --git a/modules/webapps/mediagoblin.nix b/modules/webapps/mediagoblin.nix
new file mode 100644
index 00000000..78bbef6f
--- /dev/null
+++ b/modules/webapps/mediagoblin.nix
@@ -0,0 +1,237 @@
+{ lib, pkgs, config, ... }:
+let
+  name = "mediagoblin";
+  cfg = config.services.mediagoblin;
+
+  uid = config.ids.uids.mediagoblin;
+  gid = config.ids.gids.mediagoblin;
+
+  paste_local = pkgs.writeText "paste_local.ini" ''
+    [DEFAULT]
+    debug = false
+
+    [pipeline:main]
+    pipeline = mediagoblin
+
+    [app:mediagoblin]
+    use = egg:mediagoblin#app
+    config = ${cfg.configFile} ${cfg.workdir}/mediagoblin.ini
+    /mgoblin_static = ${cfg.workdir}/mediagoblin/static
+
+    [loggers]
+    keys = root
+
+    [handlers]
+    keys = console
+
+    [formatters]
+    keys = generic
+
+    [logger_root]
+    level = INFO
+    handlers = console
+
+    [handler_console]
+    class = StreamHandler
+    args = (sys.stderr,)
+    level = NOTSET
+    formatter = generic
+
+    [formatter_generic]
+    format = %(levelname)-7.7s [%(name)s] %(message)s
+
+    [filter:errors]
+    use = egg:mediagoblin#errors
+    debug = false
+
+    [server:main]
+    use = egg:waitress#main
+    unix_socket = ${cfg.sockets.paster}
+    unix_socket_perms = 777
+    url_scheme = https
+    '';
+in
+{
+  options.services.mediagoblin = {
+    enable = lib.mkEnableOption "Enable Mediagoblin’s service";
+    user = lib.mkOption {
+      type = lib.types.str;
+      default = name;
+      description = "User account under which Mediagoblin runs";
+    };
+    group = lib.mkOption {
+      type = lib.types.str;
+      default = name;
+      description = "Group under which Mediagoblin runs";
+    };
+    dataDir = lib.mkOption {
+      type = lib.types.path;
+      default = "/var/lib/${name}";
+      description = ''
+        The directory where Mediagoblin stores its data.
+      '';
+    };
+    socketsDir = lib.mkOption {
+      type = lib.types.path;
+      default = "/run/${name}";
+      description = ''
+        The directory where Mediagoblin puts runtime files and sockets.
+        '';
+    };
+    configFile = lib.mkOption {
+      type = lib.types.path;
+      description = ''
+        The configuration file path for Mediagoblin.
+        '';
+    };
+    package = lib.mkOption {
+      type = lib.types.package;
+      default = pkgs.webapps.mediagoblin;
+      description = ''
+        Mediagoblin package to use.
+        '';
+    };
+    plugins = lib.mkOption {
+      type = lib.types.listOf lib.types.package;
+      default = [];
+      description = ''
+        Mediagoblin plugins to use.
+        '';
+    };
+    # Output variables
+    workdir = lib.mkOption {
+      type = lib.types.package;
+      default = cfg.package.withPlugins cfg.plugins;
+      description = ''
+      Adjusted Mediagoblin package with plugins
+      '';
+      readOnly = true;
+    };
+    systemdStateDirectory = lib.mkOption {
+      type = lib.types.str;
+      # Use ReadWritePaths= instead if varDir is outside of /var/lib
+      default = assert lib.strings.hasPrefix "/var/lib/" cfg.dataDir;
+        lib.strings.removePrefix "/var/lib/" cfg.dataDir;
+      description = ''
+      Adjusted Mediagoblin data directory for systemd
+      '';
+      readOnly = true;
+    };
+    systemdRuntimeDirectory = lib.mkOption {
+      type = lib.types.str;
+      # Use ReadWritePaths= instead if socketsDir is outside of /run
+      default = assert lib.strings.hasPrefix "/run/" cfg.socketsDir;
+        lib.strings.removePrefix "/run/" cfg.socketsDir;
+      description = ''
+      Adjusted Mediagoblin sockets directory for systemd
+      '';
+      readOnly = true;
+    };
+    sockets = lib.mkOption {
+      type = lib.types.attrsOf lib.types.path;
+      default = {
+        paster = "${cfg.socketsDir}/mediagoblin.sock";
+      };
+      readOnly = true;
+      description = ''
+        Mediagoblin sockets
+        '';
+    };
+    pids = lib.mkOption {
+      type = lib.types.attrsOf lib.types.path;
+      default = {
+        paster = "${cfg.socketsDir}/mediagoblin.pid";
+        celery = "${cfg.socketsDir}/mediagoblin-celeryd.pid";
+      };
+      readOnly = true;
+      description = ''
+        Mediagoblin pid files
+        '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    users.users = lib.optionalAttrs (cfg.user == name) (lib.singleton {
+      inherit name;
+      inherit uid;
+      group = cfg.group;
+      description = "Mediagoblin user";
+      home = cfg.dataDir;
+      useDefaultShell = true;
+    });
+    users.groups = lib.optionalAttrs (cfg.group == name) (lib.singleton {
+      inherit name;
+      inherit gid;
+    });
+
+    systemd.services.mediagoblin-web = {
+      description = "Mediagoblin service";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" ];
+      wants = [ "postgresql.service" "redis.service" ];
+
+      environment.SCRIPT_NAME = "/mediagoblin/";
+
+      script = ''
+        exec ./bin/paster serve \
+          ${paste_local} \
+          --pid-file=${cfg.pids.paster}
+        '';
+      preStop = ''
+        exec ./bin/paster serve \
+          --pid-file=${cfg.pids.paster} \
+          ${paste_local} stop
+        '';
+      preStart = ''
+        if [ -d ${cfg.dataDir}/plugin_static/ ]; then
+          rm ${cfg.dataDir}/plugin_static/coreplugin_basic_auth
+          ln -sf ${cfg.workdir}/mediagoblin/plugins/basic_auth/static ${cfg.dataDir}/plugin_static/coreplugin_basic_auth
+        fi
+        ./bin/gmg -cf ${cfg.configFile} dbupdate
+        '';
+
+      serviceConfig = {
+        User = cfg.user;
+        PrivateTmp = true;
+        Restart = "always";
+        TimeoutSec = 15;
+        Type = "simple";
+        WorkingDirectory = cfg.workdir;
+        RuntimeDirectory = cfg.systemdRuntimeDirectory;
+        StateDirectory= cfg.systemdStateDirectory;
+        PIDFile = cfg.pids.paster;
+      };
+
+      unitConfig.RequiresMountsFor = cfg.dataDir;
+    };
+
+    systemd.services.mediagoblin-celeryd = {
+      description = "Mediagoblin service";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" "mediagoblin-web.service" ];
+
+      environment.MEDIAGOBLIN_CONFIG = cfg.configFile;
+      environment.CELERY_CONFIG_MODULE = "mediagoblin.init.celery.from_celery";
+
+      script = ''
+        exec ./bin/celery worker \
+          --logfile=${cfg.dataDir}/celery.log \
+          --loglevel=INFO
+        '';
+
+      serviceConfig = {
+        User = cfg.user;
+        PrivateTmp = true;
+        Restart = "always";
+        TimeoutSec = 60;
+        Type = "simple";
+        WorkingDirectory = cfg.workdir;
+        RuntimeDirectory = cfg.systemdRuntimeDirectory;
+        StateDirectory= cfg.systemdStateDirectory;
+        PIDFile = cfg.pids.celery;
+      };
+
+      unitConfig.RequiresMountsFor = cfg.dataDir;
+    };
+  };
+}