refactor python requirements

-define a separate requirements list for test and production environment

Author: Helene

.circleci/config.yml

@@ -16,7 +16,7 @@ jobs:
           command: |
             python3 -m venv venv
             . venv/bin/activate
-            pip install -r requirements.txt
+            pip install -r requirements/requirements_test.txt
       - python/save-cache
       - run:
           name: Test

requirements.txt requirements/requirements_test.txtrequirements.txt renamed to requirements/requirements_test.txt

@@ -0,0 +1,9 @@
+# This file is used for generating python requirements list on top of the redhat UBI8 image.
+# To update, run:
+#
+#  $ pip-compile requirements_ubi8.in  --output-file requirements_ubi8.txt
+#
+setuptools
+cherrypy
+urllib3
+requests