stanchion: init at 2.1.1

nixos/modules/services/databases/stanchion.nix

@@ -0,0 +1,211 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.stanchion;
+
+in
+
+{
+
+  ###### interface
+
+  options = {
+
+    services.stanchion = {
+
+      enable = mkEnableOption "stanchion";
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.stanchion;
+        example = literalExample "pkgs.stanchion";
+        description = ''
+          Stanchion package to use.
+        '';
+      };
+
+      nodeName = mkOption {
+        type = types.str;
+        default = "stanchion@127.0.0.1";
+        description = ''
+          Name of the Erlang node.
+        '';
+      };
+
+      adminKey = mkOption {
+        type = types.str;
+        default = "";
+        description = ''
+          Name of admin user.
+        '';
+      };
+
+      adminSecret = mkOption {
+        type = types.str;
+        default = "";
+        description = ''
+          Name of admin secret
+        '';
+      };
+
+      riakHost = mkOption {
+        type = types.str;
+        default = "127.0.0.1:8087";
+        description = ''
+          Name of riak hosting service.
+        '';
+      };
+
+      listener = mkOption {
+        type = types.str;
+        default = "127.0.0.1:8085";
+        description = ''
+          Name of Riak CS listening service.
+        '';
+      };
+
+      stanchionHost = mkOption {
+        type = types.str;
+        default = "127.0.0.1:8085";
+        description = ''
+          Name of stanchion hosting service.
+        '';
+      };
+
+      stanchionSsl = mkOption {
+        type = types.bool;
+        default = true;
+        description = ''
+          Tell stanchion to use SSL.
+        '';
+      };
+
+      distributedCookie = mkOption {
+        type = types.str;
+        default = "riak";
+        description = ''
+          Cookie for distributed node communication.  All nodes in the
+          same cluster should use the same cookie or they will not be able to
+          communicate.
+        '';
+      };
+
+      dataDir = mkOption {
+        type = types.path;
+        default = "/var/db/stanchion";
+        description = ''
+          Data directory for Stanchion.
+        '';
+      };
+
+      logDir = mkOption {
+        type = types.path;
+        default = "/var/log/stanchion";
+        description = ''
+          Log directory for Stanchino.
+        '';
+      };
+
+      extraConfig = mkOption {
+        type = types.lines;
+        default = "";
+        description = ''
+          Additional text to be appended to <filename>stanchion.conf</filename>.
+        '';
+      };
+    };
+  };
+
+  ###### implementation
+
+  config = mkIf cfg.enable {
+
+    environment.systemPackages = [ cfg.package ];
+
+    environment.etc."stanchion/advanced.config".text = ''
+      [{stanchion, []}].
+    '';
+
+    environment.etc."stanchion/stanchion.conf".text = ''
+      listener = ${cfg.listener}
+
+      riak_host = ${cfg.riakHost}
+
+      ${optionalString (cfg.adminKey == "") "#"} admin.key=${optionalString (cfg.adminKey != "") cfg.adminKey}
+      ${optionalString (cfg.adminSecret == "") "#"} admin.secret=${optionalString (cfg.adminSecret != "") cfg.adminSecret}
+
+      platform_bin_dir = ${pkgs.stanchion}/bin
+      platform_data_dir = ${cfg.dataDir}
+      platform_etc_dir = /etc/stanchion
+      platform_lib_dir = ${pkgs.stanchion}/lib
+      platform_log_dir = ${cfg.logDir}
+
+      nodename = ${cfg.nodeName}
+
+      distributed_cookie = ${cfg.distributedCookie}
+
+      stanchion_ssl=${if cfg.stanchionSsl then "on" else "off"}
+
+      ${cfg.extraConfig}
+    '';
+
+    users.extraUsers.stanchion = {
+      name = "stanchion";
+      uid = config.ids.uids.stanchion;
+      group = "stanchion";
+      description = "Stanchion server user";
+    };
+
+    users.extraGroups.stanchion.gid = config.ids.gids.stanchion;
+
+    systemd.services.stanchion = {
+      description = "Stanchion Server";
+
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" ];
+
+      path = [
+        pkgs.utillinux # for `logger`
+        pkgs.bash
+      ];
+
+      environment.HOME = "${cfg.dataDir}";
+      environment.STANCHION_DATA_DIR = "${cfg.dataDir}";
+      environment.STANCHION_LOG_DIR = "${cfg.logDir}";
+      environment.STANCHION_ETC_DIR = "/etc/stanchion";
+
+      preStart = ''
+        if ! test -e ${cfg.logDir}; then
+          mkdir -m 0755 -p ${cfg.logDir}
+          chown -R stanchion:stanchion ${cfg.logDir}
+        fi
+
+        if ! test -e ${cfg.dataDir}; then
+          mkdir -m 0700 -p ${cfg.dataDir}
+          chown -R stanchion:stanchion ${cfg.dataDir}
+        fi
+      '';
+
+      serviceConfig = {
+        ExecStart = "${cfg.package}/bin/stanchion console";
+        ExecStop = "${cfg.package}/bin/stanchion stop";
+        StandardInput = "tty";
+        User = "stanchion";
+        Group = "stanchion";
+        PermissionsStartOnly = true;
+        # Give Stanchion a decent amount of time to clean up.
+        TimeoutStopSec = 120;
+        LimitNOFILE = 65536;
+      };
+
+      unitConfig.RequiresMountsFor = [
+        "${cfg.dataDir}"
+        "${cfg.logDir}"
+        "/etc/stanchion"
+      ];
+    };
+  };
+}