diff --git a/src/colab/custom_settings.py b/src/colab/custom_settings.py
index 2e1b209..d63bd6b 100644
--- a/src/colab/custom_settings.py
+++ b/src/colab/custom_settings.py
@@ -22,6 +22,25 @@ HAYSTACK_CONNECTIONS = {
     }
 }
 
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.postgresql_psycopg2',
+        'NAME': 'colab',
+        'USER': 'colab',
+        'PASSWORD': os.environ.get('COLAB_DEFAULT_DB_PWD'),
+        'HOST': os.environ.get('COLAB_DEFAULT_DB_HOST'),
+    },
+    'trac': {
+        'ENGINE': 'django.db.backends.postgresql_psycopg2',
+        'NAME': 'trac',
+        'USER': 'trac',
+        'PASSWORD': os.environ.get('COLAB_TRAC_DB_PWD'),
+        'HOST': os.environ.get('COLAB_TRAC_DB_HOST'),
+    }
+}
+
+DATABASE_ROUTERS = ['colab.routers.TracRouter',]
+
 INSTALLED_APPS = INSTALLED_APPS + (
 
     # Not standard apps
diff --git a/src/colab/routers.py b/src/colab/routers.py
new file mode 100644
index 0000000..9d053cb
--- /dev/null
+++ b/src/colab/routers.py
@@ -0,0 +1,23 @@
+class TracRouter(object):
+    def db_for_read(self, model, **hints):
+        if model._meta.app_label == 'proxy':
+            return 'trac'
+        return None
+
+    def db_for_write(self, model, **hints):
+        if model._meta.app_label == 'proxy':
+            return 'trac'
+        return None
+
+    def allow_relation(self, obj1, obj2, **hints):
+        if obj1._meta.app_label == 'proxy' or \
+            obj2._meta.app_label == 'proxy':
+            return True
+        return None
+
+    def allow_migrate(self, db, model):
+        if db == 'trac':
+            return model._meta.app_label == 'proxy'
+        elif model._meta.app_label == 'proxy':
+            False
+        return None
--
libgit2 0.21.2