Merge "octavia: generate certificates automatically"

ansible/octavia-certificates.yml

ansible/roles/octavia-certificates/defaults/main.yml

ansible/roles/octavia-certificates/files/openssl.cnf

ansible/roles/octavia-certificates/tasks/client_ca.yml

ansible/roles/octavia-certificates/tasks/client_cert.yml

ansible/roles/octavia-certificates/tasks/main.yml

ansible/roles/octavia-certificates/tasks/server_ca.yml

etc/kolla/passwords.yml

tests/check-config.sh

tests/run.yml

tools/kolla-ansible

zuul.d/base.yaml