Description of problem:
Documentation for Octavia should mention to use customer specific CA certificates
Please refer to https://bugzilla.redhat.com/show_bug.cgi?id=1645536 for more information
If customer uses default configuration, certificates are regenerated in every deploy command making existing loadbalancers in invalid state.
Version-Release number of selected component (if applicable):
Red Hat OpenStack Platform 13
Documentation doesn't specify recommending customer specific certificates.
Documentation must specify recommending customer to use their own certificates instead of tripleo generated one's.