Add MySQL connection SSL support

When 'cinder_galera_use_ssl' is True, use an encrypted connection to
the database using either a self-signed or user-provided CA certificate.

A new non-voting test has been added to verify that the role remains
functional when enabling SSL features.

Partial-Bug: 1667789

Change-Id: Ifeda0acb4b70ba313e6572c806125d31ab3eb300
Depends-On: I95cc994df5118fce7ce588fc0bff979bc283a6f3

defaults/main.yml

@@ -51,9 +51,11 @@ cinder_nova_catalog_admin_info: compute:nova:adminURL
 
 cinder_fatal_deprecations: False
 
-## DB
+## Database info
 cinder_galera_user: cinder
 cinder_galera_database: cinder
+cinder_galera_use_ssl: "{{ galera_use_ssl | default(False) }}"
+cinder_galera_ssl_ca_cert: "{{ galera_ssl_ca_cert | default('/etc/ssl/certs/galera-ca.pem') }}"
 
 ## RabbitMQ info
 

templates/cinder.conf.j2

@@ -103,7 +103,7 @@ enabled_backends={% for backend in cinder_backends|dictsort %}{{ backend.0 }}{%
 {% endif %}
 
 [database]
-connection = mysql+pymysql://{{ cinder_galera_user }}:{{ cinder_container_mysql_password }}@{{ cinder_galera_address }}/{{ cinder_galera_database }}?charset=utf8
+connection = mysql+pymysql://{{ cinder_galera_user }}:{{ cinder_container_mysql_password }}@{{ cinder_galera_address }}/{{ cinder_galera_database }}?charset=utf8{% if cinder_galera_use_ssl | bool %}&ssl_ca={{ cinder_galera_ssl_ca_cert }}{% endif %}
 
 [oslo_messaging_rabbit]
 ssl = {{ cinder_rabbitmq_use_ssl }}

tox.ini

@@ -116,6 +116,17 @@ commands =
     bash -c "{toxinidir}/tests/test-cinder-upgrades.sh"
 
 
+[testenv:ssl]
+deps =
+    {[testenv:ansible]deps}
+setenv =
+    {[testenv]setenv}
+    ANSIBLE_PARAMETERS=-vvv -e galera_use_ssl=True
+commands =
+    bash -c "{toxinidir}/tests/tests-repo-clone.sh"
+    bash -c "{toxinidir}/tests/common/test-ansible-functional.sh"
+
+
 [testenv:linters]
 deps =
     {[testenv:ansible]deps}

zuul.d/jobs.yaml

@@ -0,0 +1,21 @@
+---
+# Copyright 2017, Rackspace US, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+- job:
+    name: openstack-ansible-cinder-ssl-nv
+    parent: openstack-ansible-functional-ubuntu-xenial
+    voting: false
+    vars:
+      tox_env: ssl

zuul.d/project.yaml

@@ -22,6 +22,7 @@
         - openstack-ansible-functional-opensuse-423
         - openstack-ansible-functional-ubuntu-xenial
         - openstack-ansible-upgrade-ubuntu-xenial
+        - openstack-ansible-cinder-ssl-nv
     experimental:
       jobs:
         - openstack-ansible-integrated-deploy-aio
@@ -32,3 +33,4 @@
         - openstack-ansible-functional-opensuse-423
         - openstack-ansible-functional-ubuntu-xenial
         - openstack-ansible-upgrade-ubuntu-xenial
+        - openstack-ansible-cinder-ssl-nv