patch undefined: Updated the DNS configuration in the resolv.conf.j2 template to include both the local host and the Ansible-managed DNS server.

Added a new line to the `resolv.conf.j2` template to specify the Ansible-managed DNS server (`{{ addc_ansible_host }}`). This ensures that the system uses both the local host and the managed DNS server for DNS resolution.

tasks/0backupcheck.yml

@@ -0,0 +1,56 @@
+---
+- name: Check if backup directory exists
+  stat:
+    path: "{{ backup_path }}"
+  register: backup_dir_stat
+
+- name: Check if backup directory is not empty
+  find:
+    paths: "{{ backup_path }}"
+    file_type: any
+    recurse: false
+  when: backup_dir_stat.stat.exists and backup_dir_stat.stat.isdir
+  register: backup_dir_contents
+
+
+- name: Check if each required file exists
+  stat:
+    path: "{{ dir_path }}/{{ item }}"
+  loop: "{{ backup_required_files }}"
+  register: required_file_stats
+
+- name: Determine missing files
+  set_fact:
+    missing_files: >-
+      {{ required_file_stats.results
+          | selectattr('stat.exists', 'equalto', false)
+          | map(attribute='item')
+          | list }}
+
+- name: Set fact if all required files are present
+  set_fact:
+    all_required_files_present: true
+  when: missing_files | length == 0
+
+- name: Debug - Show status
+  debug:
+    msg: >-
+      {% if all_required_files_present | default(false) %}
+        All required files are present.
+      {% else %}
+        Missing required files: {{ missing_files }}
+      {% endif %}
+
+- name: Set fact if backup directory exists and is not empty
+  set_fact:
+    backup_dir_valid: true
+  when:
+    - backup_dir_stat.stat.exists
+    - backup_dir_stat.stat.isdir
+    - backup_dir_contents.matched | int > 0
+    - all_required_files_present
+
+- name: Debug - Show final result
+  debug:
+    msg: "Backup directory exists and is not empty."
+  when: backup_dir_valid | default(false)