ci: add smoke tests

.gitlab-ci.yml

@@ -21,9 +21,10 @@
       - "templates/upload-to-pypi.yml"  # on a new mercurial tag (expected to be done with release-new), will push a release on pypi
       # - "templates/lint/mypy.yml"  # will do the equivalent of 'tox -e mypy'
       # - "templates/upload-python-package-to-heptapod.yml"  # upload the package to heptapod registry on new tag
+      - "templates/smoke/test-cube-instance-creation.yml"  # try to start an instance of the cube and do a GET request on "/
 
 stages:
   - lint
   - tests
   - release
   - publish
@@ -24,6 +25,12 @@
 
 stages:
   - lint
   - tests
   - release
   - publish
+  - qa
+
+test-cube-instance-creation:
+  variables:
+    SMOKE_URL: "api/v1/schema"
+    SMOKE_HTTP_CODE: 401