nixos/monetdb: init (#39812)

nixos/modules/misc/ids.nix

@@ -138,7 +138,6 @@
       ngircd = 112;
       btsync = 113;
       minecraft = 114;
-      #monetdb = 115; # unused (not packaged), removed 2016-09-19
       vault = 115;
       rippled = 116;
       murmur = 117;
@@ -306,6 +305,7 @@
       monero = 287;
       ceph = 288;
       duplicati = 289;
+      monetdb = 290;
 
       # When adding a uid, make sure it doesn't match an existing gid. And don't use uids above 399!
 
@@ -424,7 +424,6 @@
       #ngircd = 112; # unused
       btsync = 113;
       #minecraft = 114; # unused
-      #monetdb = 115; # unused (not packaged), removed 2016-09-19
       vault = 115;
       #ripped = 116; # unused
       #murmur = 117; # unused
@@ -580,6 +579,7 @@
       monero = 287;
       ceph = 288;
       duplicati = 289;
+      monetdb = 290;
 
       # When adding a gid, make sure it doesn't match an existing
       # uid. Users and groups with the same name should have equal

nixos/modules/module-list.nix

@@ -199,6 +199,7 @@
   ./services/databases/hbase.nix
   ./services/databases/influxdb.nix
   ./services/databases/memcached.nix
+  ./services/databases/monetdb.nix
   ./services/databases/mongodb.nix
   ./services/databases/mysql.nix
   ./services/databases/neo4j.nix

nixos/modules/services/databases/monetdb.nix

@@ -0,0 +1,100 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.monetdb;
+
+in {
+  meta.maintainers = with maintainers; [ StillerHarpo primeos ];
+
+  ###### interface
+  options = {
+    services.monetdb = {
+
+      enable = mkEnableOption "the MonetDB database server";
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.monetdb;
+        defaultText = "pkgs.monetdb";
+        description = "MonetDB package to use.";
+      };
+
+      user = mkOption {
+        type = types.str;
+        default = "monetdb";
+        description = "User account under which MonetDB runs.";
+      };
+
+      group = mkOption {
+        type = types.str;
+        default = "monetdb";
+        description = "Group under which MonetDB runs.";
+      };
+
+      dataDir = mkOption {
+        type = types.path;
+        default = "/var/lib/monetdb";
+        description = "Data directory for the dbfarm.";
+      };
+
+      port = mkOption {
+        type = types.ints.u16;
+        default = 50000;
+        description = "Port to listen on.";
+      };
+
+      listenAddress = mkOption {
+        type = types.str;
+        default = "127.0.0.1";
+        example = "0.0.0.0";
+        description = "Address to listen on.";
+      };
+    };
+  };
+
+  ###### implementation
+  config = mkIf cfg.enable {
+
+    users.users.monetdb = mkIf (cfg.user == "monetdb") {
+      uid = config.ids.uids.monetdb;
+      group = cfg.group;
+      description = "MonetDB user";
+      home = cfg.dataDir;
+      createHome = true;
+    };
+
+    users.groups.monetdb = mkIf (cfg.group == "monetdb") {
+      gid = config.ids.gids.monetdb;
+      members = [ cfg.user ];
+    };
+
+    environment.systemPackages = [ cfg.package ];
+
+    systemd.services.monetdb = {
+      description = "MonetDB database server";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" ];
+      path = [ cfg.package ];
+      unitConfig.RequiresMountsFor = "${cfg.dataDir}";
+      serviceConfig = {
+        User = cfg.user;
+        Group = cfg.group;
+        ExecStart = "${cfg.package}/bin/monetdbd start -n ${cfg.dataDir}";
+        ExecStop = "${cfg.package}/bin/monetdbd stop ${cfg.dataDir}";
+      };
+      preStart = ''
+        if [ ! -e ${cfg.dataDir}/.merovingian_properties ]; then
+          # Create the dbfarm (as cfg.user)
+          ${cfg.package}/bin/monetdbd create ${cfg.dataDir}
+        fi
+
+        # Update the properties
+        ${cfg.package}/bin/monetdbd set port=${toString cfg.port} ${cfg.dataDir}
+        ${cfg.package}/bin/monetdbd set listenaddr=${cfg.listenAddress} ${cfg.dataDir}
+      '';
+    };
+
+  };
+}