use postgres service for CI

.gitlab-ci.yml

@@ -8,7 +8,15 @@ stages:
   - test
   - build
   - docs
-image: python:3.5
+image: python:3.6
+services:
+  - postgres:latest
+
+variables:
+  POSTGRES_DB: passbook
+  POSTGRES_USER: passbook
+  POSTGRES_PASSWORD: 'EK-5jnKfjrGRm<77'
+  SUPERVISR_ENV: ci
 
 include:
   - /allauth/.gitlab-ci.yml

passbook/lib/default.yml

@@ -1,8 +1,11 @@
 # This is the default configuration file
 databases:
   default:
-    engine: 'django.db.backends.sqlite3'
-    name: 'db.sqlite3'
+    engine: 'django.db.backends.postgresql'
+    name: passbook
+    user: passbook
+    password: 'EK-5jnKfjrGRm<77'
+    host: postgres
 log:
   level:
     console: DEBUG