Allow override of rabbitmq config in kolla toolbox

Certain overrides for rabbitmq may need to be set for `rabbitmqctl` in
kolla-toolbox aswell.
This commit allows to override `rabbitmq-env.conf` and `erl_inetrc` in
kolla-toolbox.

Change-Id: Idef6adcf9700f75a2db503444a8de093ee21a9c5

ansible/roles/common/tasks/config.yml

@@ -263,26 +263,29 @@
   with_dict: "{{ common_services }}"
 
 - name: Copy rabbitmq-env.conf to kolla toolbox
-  copy:
-    content: |
-      RABBITMQ_CTL_ERL_ARGS="-proto_dist inet6_tcp"
-      export ERL_INETRC=/etc/rabbitmq/erl_inetrc
+  template:
+    src: "{{ item }}"
     dest: "{{ node_config_directory }}/kolla-toolbox/rabbitmq-env.conf"
     mode: "0600"
+  with_first_found:
+    - "{{ node_custom_config }}/kolla-toolbox/{{ inventory_hostname }}/rabbitmq-env.conf"
+    - "{{ node_custom_config }}/kolla-toolbox/rabbitmq-env.conf"
+    - "rabbitmq-env.conf.j2"
   become: true
   when:
     - common_services['kolla-toolbox'] | service_enabled_and_mapped_to_host
     - enable_rabbitmq | bool
-    - api_address_family == "ipv6"
 
-- name: Copy rabbitmq erl_intr to kolla toolbox
-  copy:
-    content: |
-      {inet6,true}.
+- name: Copy rabbitmq erl_inetrc to kolla toolbox
+  template:
+    src: "{{ item }}"
     dest: "{{ node_config_directory }}/kolla-toolbox/erl_inetrc"
     mode: "0600"
   become: true
+  with_first_found:
+    - "{{ node_custom_config }}/kolla-toolbox/{{ inventory_hostname }}/erl_inetrc"
+    - "{{ node_custom_config }}/kolla-toolbox/erl_inetrc"
+    - "erl_inetrc.j2"
   when:
     - common_services['kolla-toolbox'] | service_enabled_and_mapped_to_host
     - enable_rabbitmq | bool
-    - api_address_family == "ipv6"

ansible/roles/common/templates/erl_inetrc.j2

+{% if api_address_family == 'ipv6' %}
+{inet6,true}.
+{% endif %}

ansible/roles/common/templates/kolla-toolbox.json.j2

@@ -6,7 +6,7 @@
             "dest": "/var/lib/rabbitmq/.erlang.cookie",
             "owner": "rabbitmq",
             "perm": "0600"
-        }{% if api_address_family == 'ipv6' %},
+        },
         {
             "source": "{{ container_config_directory }}/rabbitmq-env.conf",
             "dest": "/etc/rabbitmq/rabbitmq-env.conf",
@@ -18,7 +18,7 @@
             "dest": "/etc/rabbitmq/erl_inetrc",
             "owner": "rabbitmq",
             "perm": "0600"
-        }{% endif %}{% endif %}
+        }{% endif %}
     ],
     "permissions": [
         {

ansible/roles/common/templates/rabbitmq-env.conf.j2

+RABBITMQ_CTL_ERL_ARGS="{% if api_address_family == 'ipv6' %}-proto_dist inet6_tcp {% endif %}"
+export ERL_INETRC=/etc/rabbitmq/erl_inetrc

releasenotes/notes/override-rmq-in-ktb-86c97926db67d3c9.yaml

+---
+features:
+  - |
+    Added support to override rabbitmq config (``erl_inetrc`` and
+    ``rabbitmq-env.conf``) in the ``kolla-toolbox`` container.