Setup oslo.messaging extra packages for optional drivers

Change-Id: I2cc78fdbe9f7903de6431478cfc4e88252ed9cc0

defaults/main.yml

@@ -94,7 +94,9 @@ designate_oslomsg_notify_use_ssl: "{{ oslomsg_notify_use_ssl | default(False) }}
 designate_oslomsg_notify_userid: designate-notify
 designate_oslomsg_notify_vhost: /designate
 
-## RabbitMQ info
+## (Qdrouterd) info
+# TODO(ansmith): Change structure when more backends will be supported
+designate_oslomsg_amqp1_enabled: "{{ designate_oslomsg_rpc_transport == 'amqp' }}"
 
 ## Pool Configuration Defaults
 designate_pool_uuid: 794ccc2c-d751-44fe-b57f-8894c9f5c842
@@ -181,6 +183,9 @@ designate_pip_packages:
   - python-memcached
   - warlock
 
+designate_optional_oslomsg_amqp1_pip_packages:
+  - oslo.messaging[amqp1]
+
 designate_central_init_overrides: {}
 designate_worker_init_overrides: {}
 designate_producer_init_overrides: {}

tasks/designate_install_source.yml

@@ -107,6 +107,20 @@
   tags:
     - skip_ansible_lint
 
+- name: Install optional pip packages
+  pip:
+    name: "{{ designate_optional_oslomsg_amqp1_pip_packages }}"
+    state: "{{ designate_pip_package_state }}"
+    virtualenv: "{{ designate_bin | dirname }}"
+    virtualenv_site_packages: "no"
+  when: designate_oslomsg_amqp1_enabled
+  register: install_optional_packages
+  until: install_optional_packages is success
+  retries: 5
+  delay: 2
+  notify:
+    - Restart designate services
+
 - name: Record the venv tag deployed
   ini_file:
     dest: "/etc/ansible/facts.d/openstack_ansible.fact"