Add rabbitmq distro install support for EL

This patch adds installation of "native" to EL repo (which actually
is "extras") that provides RabbitMQ and Erlang.

This behaviour would align EL with DEB systems in terms of "distro"
path.

Change-Id: Ifa197131dd010108f3a0745322b32de1fb08b813

tasks/install_yum.yml

@@ -13,10 +13,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- name: Fail if installation method is not 'external_repo'
+- name: Fail if installation method is not 'external_repo' or 'distro'
   fail:
-    msg: "The only supported rabbitmq_install_method for RedHat is 'external_repo'."
-  when: rabbitmq_install_method != 'external_repo'
+    msg: "The only supported rabbitmq_install_method for RedHat is 'external_repo' and 'distro'."
+  when:
+    - rabbitmq_install_method != 'external_repo'
+    - rabbitmq_install_method != 'distro'
 
 - name: Configure repositories
   yum_repository:
@@ -29,6 +31,17 @@
   with_items:
     - "{{ rabbitmq_erlang_repo }}"
     - "{{ rabbitmq_repo }}"
+  when:
+    - rabbitmq_install_method == 'external_repo'
+  tags:
+    - rabbitmq-repos
+
+- name: Install RabbitMQ packages
+  yum:
+    name: "{{ rabbitmq_distro_extras_repo }}"
+    state: "{{ rabbitmq_package_state }}"
+  when:
+    - rabbitmq_install_method == 'distro'
   tags:
     - rabbitmq-repos
 

vars/redhat.yml

@@ -46,7 +46,16 @@ _rabbitmq_erlang_repo:
     - https://dl.cloudsmith.io/public/rabbitmq/rabbitmq-erlang/gpg.E495BB49CC4BBE5B.key
     - https://github.com/rabbitmq/signing-keys/releases/download/2.0/rabbitmq-release-signing-key.asc
 
-rabbitmq_distro_packages:
-  - openssl
-  - "erlang-{{ _erlang_package_version }}.{{ _erlang_package_dist_tag }}.{{ ansible_facts['architecture'] }}"
-  - "rabbitmq-server-{{ rabbitmq_package_version }}.{{ _rabbitmq_package_dist_tag }}.noarch"
+rabbitmq_distro_packages_mapping:
+  distro:
+    - openssl
+    - rabbitmq-server
+  external_repo:
+    - openssl
+    - "erlang-{{ _erlang_package_version }}.{{ _erlang_package_dist_tag }}.{{ ansible_facts['architecture'] }}"
+    - "rabbitmq-server-{{ rabbitmq_package_version }}.{{ _rabbitmq_package_dist_tag }}.noarch"
+
+rabbitmq_distro_packages: "{{ rabbitmq_distro_packages_mapping[rabbitmq_install_method] }}"
+
+rabbitmq_distro_extras_repo:
+  - centos-release-rabbitmq-*