Add CI file, testing

.gitlab-ci.yml

@@ -0,0 +1,7 @@
+test:
+  script:
+  # this configures django application to use attached postgres database that is run on `postgres` host
+  - apt-get update -qy
+  - apt-get install -y python3-dev python3-pip
+  - pip install -r requirements.txt
+  - python manage.py test