Missing requirement "python-werkzeug" for running the dashboard API tests
With a fresh build docker container I got the following message through ceph -s after sourcing run-backend-api-tests.sh
Module 'restful' has failed dependency: No module named 'werkzeug'
After that I found out that only the pip2 version of werkzeug was not installed. After I had installed it and recreated the cluster the message that lead to a warning state disappeared.