1 files changed, 127 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/services/databases/hbase.nix b/nixpkgs/nixos/modules/services/databases/hbase.nix
new file mode 100644
index 00000000000..2d1a47bbaa3
--- /dev/null
+++ b/nixpkgs/nixos/modules/services/databases/hbase.nix
@@ -0,0 +1,127 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.hbase;
+
+  configFile = pkgs.writeText "hbase-site.xml" ''
+    <configuration>
+      <property>
+        <name>hbase.rootdir</name>
+        <value>file://${cfg.dataDir}/hbase</value>
+      </property>
+      <property>
+        <name>hbase.zookeeper.property.dataDir</name>
+        <value>${cfg.dataDir}/zookeeper</value>
+      </property>
+    </configuration>
+  '';
+
+  configDir = pkgs.runCommand "hbase-config-dir" { preferLocalBuild = true; } ''
+    mkdir -p $out
+    cp ${cfg.package}/conf/* $out/
+    rm $out/hbase-site.xml
+    ln -s ${configFile} $out/hbase-site.xml
+  '' ;
+
+in {
+
+  ###### interface
+
+  options = {
+
+    services.hbase = {
+
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to run HBase.
+        '';
+      };
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.hbase;
+        defaultText = "pkgs.hbase";
+        example = literalExample "pkgs.hbase";
+        description = ''
+          HBase package to use.
+        '';
+      };
+
+
+      user = mkOption {
+        type = types.str;
+        default = "hbase";
+        description = ''
+          User account under which HBase runs.
+        '';
+      };
+
+      group = mkOption {
+        type = types.str;
+        default = "hbase";
+        description = ''
+          Group account under which HBase runs.
+        '';
+      };
+
+      dataDir = mkOption {
+        type = types.path;
+        default = "/var/lib/hbase";
+        description = ''
+          Specifies location of HBase database files. This location should be
+          writable and readable for the user the HBase service runs as
+          (hbase by default).
+        '';
+      };
+
+      logDir = mkOption {
+        type = types.path;
+        default = "/var/log/hbase";
+        description = ''
+          Specifies the location of HBase log files.
+        '';
+      };
+
+    };
+
+  };
+
+  ###### implementation
+
+  config = mkIf config.services.hbase.enable {
+
+    systemd.tmpfiles.rules = [
+      "d '${cfg.dataDir}' - ${cfg.user} ${cfg.group} - -"
+      "d '${cfg.logDir}' - ${cfg.user} ${cfg.group} - -"
+    ];
+
+    systemd.services.hbase = {
+      description = "HBase Server";
+      wantedBy = [ "multi-user.target" ];
+
+      environment = {
+        JAVA_HOME = "${pkgs.jre}";
+        HBASE_LOG_DIR = cfg.logDir;
+      };
+
+      serviceConfig = {
+        User = cfg.user;
+        Group = cfg.group;
+        ExecStart = "${cfg.package}/bin/hbase --config ${configDir} master start";
+      };
+    };
+
+    users.users.hbase = {
+      description = "HBase Server user";
+      group = "hbase";
+      uid = config.ids.uids.hbase;
+    };
+
+    users.groups.hbase.gid = config.ids.gids.hbase;
+
+  };
+}