Do not copy TLS files for backend if turned off

This patch fixes an issue where backend related
certificates are attempted to be copied when
``kolla_copy_ca_into_containers`` is enabled but
``kolla_enable_tls_backend`` is disabled.

The fix consists of these specific tasks now
being limited by the condition ``kolla_enable_tls_backend``

Closes-Bug: #2080381

Change-Id: I7ccae4c501ce332519edef336bcceefae9f9568b

ansible/roles/service-cert-copy/tasks/main.yml

@@ -24,6 +24,8 @@
     dest: "{{ node_config_directory }}/{{ item.key }}/{{ project_name }}-cert.pem"
     mode: "0644"
   become: true
+  when:
+    - kolla_enable_tls_backend | bool
   with_dict: "{{ project_services | select_services_enabled_and_mapped_to_host }}"
   notify:
     - "Restart {{ item.key }} container"
@@ -41,6 +43,8 @@
     dest: "{{ node_config_directory }}/{{ item.key }}/{{ project_name }}-key.pem"
     mode: "0600"
   become: true
+  when:
+    - kolla_enable_tls_backend | bool
   with_dict: "{{ project_services | select_services_enabled_and_mapped_to_host }}"
   notify:
     - "Restart {{ item.key }} container"

releasenotes/notes/bug-2080381-3cf5ed810a5ac690.yaml

@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    Fixes an issue where backend-related certificates are
+    attempted to be copied when ``kolla_copy_ca_into_containers``
+    is enabled but ``kolla_enable_tls_backend`` is disabled.
+    `LP#2080381 <https://bugs.launchpad.net/kolla-ansible/+bug/2080381>`__