Openstack undercloud upgrade/installation on 16.2 fails when undercloud public host and local IP values coincide
Issue
-
The
FQDN
undercloud_public_host
value is resolved to thelocal_ip
value in/home/stack/undercloud.conf
:[DEFAULT] local_ip = <local IP address> undercloud_public_host = <public host FQDN> #resolved into <local IP address> undercloud_admin_host = <admin VIP>
-
The installation/upgrade process gets stuck at step 3 with the following logs:
ERROR aodh oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError (2003, "Can't connect to MySQL server on '<admin VIP>' ([Errno 113] No route to host)")
Environment
- Red Hat OpenStack 16.2
- keepalived v2.0.13 and later
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