Allow octavia services to use independent hostnames

This allows octavia service endpoints to use custom hostnames, and adds the
following variables:

* octavia_internal_fqdn
* octavia_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds a octavia_api_listen_port option, which defaults to
octavia_api_port for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: I1310eb5573a469b1a0e9549e853734455307a8b3
Implements: blueprint service-hostnames

ansible/group_vars/all.yml

@@ -306,7 +306,10 @@ nova_serialproxy_fqdn: "{{ kolla_external_fqdn }}"
 nova_serialproxy_port: "6083"
 nova_serialproxy_listen_port: "{{ nova_serialproxy_port }}"
 
+octavia_internal_fqdn: "{{ kolla_internal_fqdn }}"
+octavia_external_fqdn: "{{ kolla_external_fqdn }}"
 octavia_api_port: "9876"
+octavia_api_listen_port: "{{ octavia_api_port }}"
 octavia_health_manager_port: "5555"
 
 outward_rabbitmq_port: "5674"

ansible/roles/neutron/templates/neutron.conf.j2

@@ -133,7 +133,7 @@ drivers = ovs
 
 {% if enable_octavia | bool %}
 [octavia]
-base_url = {{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ octavia_api_port }}
+base_url = {{ internal_protocol }}://{{ octavia_internal_fqdn }}:{{ octavia_api_port }}
 {% endif %}
 
 {% if enable_designate | bool %}

ansible/roles/octavia/defaults/main.yml

@@ -101,9 +101,9 @@ octavia_worker_dimensions: "{{ default_container_dimensions }}"
 ####################
 # OpenStack
 ####################
-octavia_admin_endpoint: "{{ admin_protocol }}://{{ kolla_internal_fqdn }}:{{ octavia_api_port }}"
-octavia_internal_endpoint: "{{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ octavia_api_port }}"
-octavia_public_endpoint: "{{ public_protocol }}://{{ kolla_external_fqdn }}:{{ octavia_api_port }}"
+octavia_admin_endpoint: "{{ admin_protocol }}://{{ octavia_internal_fqdn }}:{{ octavia_api_port }}"
+octavia_internal_endpoint: "{{ internal_protocol }}://{{ octavia_internal_fqdn }}:{{ octavia_api_port }}"
+octavia_public_endpoint: "{{ public_protocol }}://{{ octavia_external_fqdn }}:{{ octavia_api_port }}"
 
 octavia_logging_debug: "{{ openstack_logging_debug }}"
 

ansible/roles/octavia/tasks/precheck.yml

@@ -9,7 +9,7 @@
 - name: Checking free port for Octavia API
   wait_for:
     host: "{{ api_interface_address }}"
-    port: "{{ octavia_api_port }}"
+    port: "{{ octavia_api_listen_port }}"
     connect_timeout: 1
     timeout: 1
     state: stopped

ansible/roles/octavia/templates/octavia.conf.j2

@@ -7,7 +7,7 @@ transport_url = {{ rpc_transport_url }}
 
 [api_settings]
 bind_host = {{ api_interface_address }}
-bind_port = {{ octavia_api_port }}
+bind_port = {{ octavia_api_listen_port }}
 
 [certificates]
 ca_private_key_passphrase = {{ octavia_ca_password }}