Add MySQL connection SSL support

When 'barbican_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: I10c578f32c54138cac87ad42adc0ab38d62da9a6
Depends-On: I95cc994df5118fce7ce588fc0bff979bc283a6f3

defaults/main.yml

@@ -90,6 +90,8 @@ barbican_venv_download_url: http://127.0.0.1/venvs/untagged/ubuntu/barbican.tgz
 # Database vars
 barbican_galera_database: barbican
 barbican_galera_user: barbican
+barbican_galera_use_ssl: "{{ galera_use_ssl | default(False) }}"
+barbican_galera_ssl_ca_cert: "{{ galera_ssl_ca_cert | default('/etc/ssl/certs/galera-ca.pem') }}"
 
 # Rabbit vars
 barbican_rabbitmq_userid: barbican

templates/barbican.conf.j2

@@ -39,7 +39,7 @@ max_allowed_request_size_in_bytes = 1000000
 #sql_connection = sqlite:///barbican.sqlite
 # Note: For absolute addresses, use '////' slashes after 'sqlite:'
 # Uncomment for a more global development environment
-sql_connection = mysql+pymysql://{{ barbican_galera_user }}:{{ barbican_galera_password }}@{{ barbican_galera_address }}/{{ barbican_galera_database }}?charset=utf8
+sql_connection = mysql+pymysql://{{ barbican_galera_user }}:{{ barbican_galera_password }}@{{ barbican_galera_address }}/{{ barbican_galera_database }}?charset=utf8{% if barbican_galera_use_ssl | bool %}&ssl_ca={{ barbican_galera_ssl_ca_cert }}{% endif %}
 
 # Period in seconds after which SQLAlchemy should reestablish its connection
 # to the database.

tox.ini

@@ -103,6 +103,17 @@ commands =
     bash -c "{toxinidir}/tests/common/test-ansible-functional.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-barbican-ssl-nv
+    parent: openstack-ansible-functional-ubuntu-xenial
+    voting: false
+    vars:
+      tox_env: ssl

zuul.d/project.yaml

@@ -20,6 +20,7 @@
         - openstack-ansible-linters
         - openstack-ansible-functional-centos-7
         - openstack-ansible-functional-ubuntu-xenial
+        - openstack-ansible-barbican-ssl-nv
     experimental:
       jobs:
         - openstack-ansible-integrated-deploy-aio
@@ -28,3 +29,4 @@
         - openstack-ansible-linters
         - openstack-ansible-functional-centos-7
         - openstack-ansible-functional-ubuntu-xenial
+        - openstack-ansible-barbican-ssl-nv