Setup oslo.messaging extra packages for optional drivers

Change-Id: I5d29c1f459a62de868c8342e843025093b92f5fc

defaults/main.yml

@@ -79,6 +79,10 @@ sahara_oslomsg_notify_use_ssl: "{{ oslomsg_notify_use_ssl | default(False) }}"
 sahara_oslomsg_notify_userid: sahara
 sahara_oslomsg_notify_vhost: /sahara
 
+## (Qdrouterd) info
+# TODO(ansmith): Change structure when more backends will be supported
+sahara_oslomsg_amqp1_enabled: "{{ sahara_oslomsg_rpc_transport == 'amqp' }}"
+
 ## Database info
 sahara_db_setup_host: "{{ ('galera_all' in groups) | ternary(groups['galera_all'][0], 'localhost') }}"
 sahara_galera_address: "{{ galera_address | default('127.0.0.1') }}"
@@ -174,6 +178,9 @@ sahara_pip_packages:
   - warlock
   - uwsgi
 
+sahara_optional_oslomsg_amqp1_pip_packages:
+  - oslo.messaging[amqp1]
+
 sahara_engine_init_overrides: {}
 sahara_api_init_overrides: {}
 

tasks/sahara_install.yml

@@ -117,6 +117,20 @@
   tags:
     - skip_ansible_lint
 
+- name: Install optional pip packages
+  pip:
+    name: "{{ sahara_optional_oslomsg_amqp1_pip_packages }}"
+    state: "{{ sahara_pip_package_state }}"
+    virtualenv: "{{ sahara_bin | dirname }}"
+    virtualenv_site_packages: "no"
+  when: sahara_oslomsg_amqp1_enabled
+  register: install_optional_packages
+  until: install_optional_packages is success
+  retries: 5
+  delay: 2
+  notify:
+    - Restart sahara services
+
 - name: Record the venv tag deployed
   ini_file:
     dest: "/etc/ansible/facts.d/openstack_ansible.fact"