Pin rabbitmq package version

This patch implements a pinned RabbitMQ package version which is
downloaded (by default) from the official RabbitMQ package download
location.

The user has the ability to use the following variables in order to
override where the package downloads from and what version is
downloaded:
 - rabbitmq_version: the package version
 - rabbitmq_repo_url: the base url to download from
 - rabbitmq_package_url: the full url including the base, the path and
   the package file name

Partial-Bug: #1412898
Change-Id: I206daf4df18aa90d975f979a656de60a06e7c8f3

rpc_deployment/inventory/group_vars/all.yml

@@ -48,7 +48,6 @@ mariadb_repo_url: "http://mirror.rackspace.com/rackspaceprivatecloud/mirror/mari
 ubuntu_lxc_repo_url: "ppa:ubuntu-lxc/stable"
 elasticsearch_repo_url: "http://packages.elasticsearch.org/elasticsearch/1.2/debian"
 logstash_repo_url: "http://packages.elasticsearch.org/logstash/1.4/debian"
-rabbitmq_repo_url: "http://www.rabbitmq.com/debian/"
 rsyslog_repo_url: "ppa:adiscon/v8-stable"
 raxmon_repo_url: "http://stable.packages.cloudmonitoring.rackspace.com/ubuntu-14.04-x86_64"
 

rpc_deployment/inventory/group_vars/rabbit.yml

@@ -15,6 +15,10 @@
 
 service_name: rabbitmq
 
+rabbitmq_version: "3.4.3"
+rabbitmq_repo_url: "http://www.rabbitmq.com/releases/rabbitmq-server"
+rabbitmq_package_url: "{{ rabbitmq_repo_url }}/v{{ rabbitmq_version }}/rabbitmq-server_{{ rabbitmq_version }}-1_all.deb"
+
 container_lvm_fstype: ext4
 container_lvm_fssize: 5GB
 

rpc_deployment/roles/rabbit_common/tasks/main.yml

@@ -23,17 +23,36 @@
     - hosts
     - rabbit_config
 
-- include: restart_rabbit.yml
-
-- name: Read rabbit cookie
+- name: Remove RabbitMQ testing apt source (important for upgrades)
   shell: |
-    cat /var/lib/rabbitmq/.erlang.cookie
-  register: tmp_rabbit_cookie
-  tags:
-    - rabbit_config
+    find /etc/apt/sources.list.d/ -name "*_rabbit_*.list" -exec cat {} \;
+  changed_when: result.rc != 0
+  failed_when: false
+  register: result
 
-- include: set_cookie.yml
-  when: tmp_rabbit_cookie.stdout != rabbit_cookie
+- name: Update the apt cache after the apt source removal
+  apt:
+    update_cache: yes
+
+- name: Download the RabbitMQ package
+  get_url:
+    url: "{{ rabbitmq_package_url }}"
+    dest: "/tmp/rabbitmq-server.deb"
+    mode: "0644"
+  register: package_download
+  retries: 3
+  delay: 10
+  until: package_download|success
+
+- name: Install the RabbitMQ package
+  apt:
+    deb: "/tmp/rabbitmq-server.deb"
+    update_cache: yes
+
+- name: Remove the RabbitMQ deb file
+  file:
+    path: "/tmp/rabbitmq-server.deb"
+    state: absent
 
 - name: Create rabbitmq config
   template:
@@ -45,6 +64,16 @@
   tags:
     - rabbit_config
 
+- name: Read rabbit cookie
+  shell: |
+    cat /var/lib/rabbitmq/.erlang.cookie
+  register: tmp_rabbit_cookie
+  tags:
+    - rabbit_config
+
+- include: set_cookie.yml
+  when: tmp_rabbit_cookie.stdout != rabbit_cookie
+
 - name: Enable management plugin
   rabbitmq_plugin:
     names: rabbitmq_management

rpc_deployment/vars/repo_packages/rabbitmq.yml

@@ -13,16 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-repo_package_name: rabbitmq
-
-apt_container_keys:
-  - { url: "http://www.rabbitmq.com/rabbitmq-signing-key-public.asc", state: "present" }
-
-apt_container_repos:
-  - { repo: "deb {{ rabbitmq_repo_url }} testing main", state: "present" }
-
 container_packages:
-  - rabbitmq-server
   - erlang
 
 service_pip_dependencies: