update couchdb to 1.5.0(current latest) and add service for it

2014-02-27 13:34:11 +01:00
parent 97a0dd9eb9
commit 62438c09f7
3 changed files with 242 additions and 9 deletions
@@ -0,0 +1,214 @@
+{ config, pkgs, ... }:
+
+with pkgs.lib;
+
+let
+
+  cfg = config.services.couchdb;
+  configFile = pkgs.writeText "couchdb.ini"
+    ''
+      [couchdb]
+      database_dir = ${cfg.databaseDir}
+      uri_file = ${cfg.uriFile}
+      view_index_dir = ${cfg. viewIndexDir}
+
+      [httpd]
+      port = ${toString cfg.port}
+      bind_address = ${cfg.bindAddress}
+
+      [log]
+      file = ${cfg.logFile}
+    '';
+  configExtraFile = pkgs.writeText "couchdb-extra.ini" cfg.extraConfig;
+
+in
+{
+
+  ###### interface
+
+  options = {
+
+    services.couchdb = {
+
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to run CouchDB Server.
+        '';
+      };
+
+      package = mkOption {
+        type = types.path;
+        default = pkgs.couchdb;
+        example = literalExample "pkgs.couchdb";
+        description = ''
+          CouchDB package to use.
+        '';
+      };
+
+
+      user = mkOption {
+        type = types.string;
+        default = "couchdb";
+        description = ''
+          User account under which couchdb runs.
+        '';
+      };
+
+      group = mkOption {
+        type = types.string;
+        default = "couchdb";
+        description = ''
+          Group account under which couchdb runs.
+        '';
+      };
+
+      pidFile = mkOption {
+        type = types.string;
+        default = "/var/run/couchdb/couchdb.pid";
+        description = ''
+          pid file.
+        '';
+      };
+
+      # couchdb options: http://docs.couchdb.org/en/latest/config/index.html
+
+      databaseDir = mkOption {
+        type = types.string;
+        default = "/var/lib/couchdb";
+        description = ''
+          Specifies location of CouchDB database files (*.couch named). This
+          location should be writable and readable for the user the CouchDB
+          service runs as (couchdb by default).
+        '';
+      };
+
+      uriFile = mkOption {
+        type = types.string;
+        default = "/var/run/couchdb/couchdb.uri";
+        description = ''
+          This file contains the full URI that can be used to access this
+          instance of CouchDB. It is used to help discover the port CouchDB is
+          running on (if it was set to 0 (e.g. automatically assigned any free
+          one). This file should be writable and readable for the user that
+          runs the CouchDB service (couchdb by default).
+        '';
+      };
+
+      viewIndexDir = mkOption {
+        type = types.string;
+        default = "/var/lib/couchdb";
+        description = ''
+          Specifies location of CouchDB view index files. This location should
+          be writable and readable for the user that runs the CouchDB service
+          (couchdb by default).
+        '';
+      };
+
+      bindAddress = mkOption {
+        type = types.string;
+        default = "127.0.0.1";
+        description = ''
+          Defines the IP address by which CouchDB will be accessible.
+        '';
+      };
+
+      port = mkOption {
+        type = types.int;
+        default = 5984;
+        description = ''
+          Defined the port number to listen.
+        '';
+      };
+
+      logFile = mkOption {
+        type = types.string;
+        default = "/var/log/couchdb.log";
+        description = ''
+          Specifies the location of file for logging output.
+        '';
+      };
+
+      extraConfig = mkOption {
+        type = types.string;
+        default = "";
+        description = ''
+          Extra configuration. Overrides any other cofiguration.
+        '';
+      };
+
+      customConfigFile = mkOption {
+        type = types.string;
+        default = "/var/lib/couchdb/custom.ini";
+        description = ''
+          Custom configuration file. File needs to be readable and writable
+          from couchdb user/group.
+        '';
+      };
+    };
+
+  };
+
+  ###### implementation
+
+  config = mkIf config.services.couchdb.enable {
+
+    environment.systemPackages = [ cfg.package ];
+
+    systemd.services.couchdb = {
+      description = "CouchDB Server";
+      wantedBy = [ "multi-user.target" ];
+
+      preStart =
+        ''
+        if ! test -e ${cfg.pidFile}; then
+          mkdir -p `dirname ${cfg.pidFile}`;
+        fi
+        if ! test -e ${cfg.uriFile}; then
+          mkdir -p `dirname ${cfg.uriFile}`;
+          touch ${cfg.uriFile};
+        fi
+        if ! test -e ${cfg.logFile}; then
+          mkdir -p `dirname ${cfg.logFile}`;
+          touch ${cfg.logFile};
+        fi
+        if ! test -e ${cfg.customConfigFile}; then
+          mkdir -p `dirname ${cfg.customConfigFile}`;
+          touch ${cfg.customConfigFile};
+        fi
+        if ! test -e ${cfg.databaseDir}; then
+          mkdir -p ${cfg.databaseDir};
+        fi
+        if ! test -e ${cfg.viewIndexDir}; then
+          mkdir -p ${cfg.viewIndexDir};
+        fi
+        chown ${cfg.user}:${cfg.group} ${cfg.pidFile}
+        chown ${cfg.user}:${cfg.group} ${cfg.uriFile}
+        chown ${cfg.user}:${cfg.group} ${cfg.logFile}
+        chown ${cfg.user}:${cfg.group} ${cfg.customConfigFile}
+        chown ${cfg.user}:${cfg.group} ${cfg.databaseDir}
+        chown ${cfg.user}:${cfg.group} ${cfg.viewIndexDir}
+        '';
+
+      serviceConfig = {
+        PermissionsStartOnly = true;
+        User = cfg.user;
+        Group = cfg.group;
+        Type = "forking";
+        ExecStart = "${cfg.package}/bin/couchdb -b -o /dev/null -e /dev/null -p ${cfg.pidFile} -a ${configFile} -a ${configExtraFile} -a ${cfg.customConfigFile}";
+        #ExecStart = "${cfg.package}/bin/couchdb -b -o /dev/null -e /dev/null -p ${cfg.pidFile} -a ${configFile} -a ${configExtraFile} -a ${cfg.customConfigFile}";
+        ExecStop = "${cfg.package}/bin/couchdb -d";
+      };
+    };
+
+    users.extraUsers.couchdb = {
+      description = "CouchDB Server user";
+      group = "couchdb";
+      uid = config.ids.uids.couchdb;
+    };
+
+    users.extraGroups.couchdb.gid = config.ids.gids.couchdb;
+
+  };
+}