Add rethinkdb.

lib/db/index.js

@@ -0,0 +1,22 @@
+var setup = require('./setup')
+var rutil = require('../util/rutil')
+var logger = require('../util/logger')
+
+function connect() {
+  var log = logger.createLogger('db')
+  return rutil.connect({
+      host: process.env.RDB_HOST || 'localhost'
+    , port: process.env.RDB_PORT || 28015
+    , db: process.env.RDB_DB || 'stf'
+    , authKey: process.env.RDB_AUTHKEY
+    })
+    .then(function(conn) {
+      conn.on('error', function(err) {
+        log.fatal('Connection error', err.stack)
+        process.exit(1)
+      })
+      return conn
+    })
+}
+
+module.exports = connect().then(setup)