When certificates are neither generated nor provided (e.g. on update)
related variables would be empty or undefined and need to be handled
When running configuration steps for octavia in octavia nodes, use
internal endpoints since public endpoints may not be available due to
network topology (spine-leaf network + octavia in networkers).
This change imports all of the octavia playbooks and roles from
`tripleo-common/playbooks/`. This change ensures all of the resources
imported are meeting the required lint checks for import and structures
the roles such that they'll automatically be installed in the
`usr/share/ansible/roles/` path making them available to the rest of
the tripleo ecosystem.
Signed-off-by: Kevin Carter <firstname.lastname@example.org>