+++ This bug was initially created as a clone of Bug #1791198 +++
Description of problem:
Prometheus should fire an alert when there is no routes configured in alertmanager
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Based on https://coreos.slack.com/archives/C0VMT03S5/p1575909697091600 and https://github.com/openshift/cluster-monitoring-operator/pull/554#issuecomment-561922011
BZ made for backporting purposes
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.