Initialisation depot

Migration/Ansible/roles/system/tasks/hostname.yml

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+---
+# Hostname configuration tasks
+- name: Get current hostname
+  command: hostname
+  register: current_hostname_result
+  changed_when: false
+
+- name: Validate target hostname is properly configured
+  fail:
+    msg: |
+      ERROR: target_hostname is not properly configured!
+      
+      Current hostname: {{ current_hostname_result.stdout }}
+      Target hostname: {{ target_hostname | default('NOT SET') }}
+      
+      Please update your inventory.yml file with the correct target_hostname.
+      Example:
+        all:
+          hosts:
+            your-server:
+              ansible_host: your_server_ip
+              target_hostname: your-desired-hostname
+              samba_realm: your.domain.local
+              
+      The target_hostname must be set in inventory for Samba4 domain controller installation.
+  when: 
+    - target_hostname is not defined or target_hostname == ""
+
+- name: Display hostname validation status
+  debug:
+    msg: |
+      ✅ Hostname validation passed:
+      Current: {{ current_hostname_result.stdout }}
+      Target:  {{ target_hostname }}
+      Domain:  {{ samba_realm }}
+      
+      {% if current_hostname_result.stdout == target_hostname %}
+      ✅ Hostname is already correctly set - no change needed.
+      {% else %}
+      ⚠️  Hostname will be changed from {{ current_hostname_result.stdout }} to {{ target_hostname }}
+      {% endif %}
+
+- name: Update /etc/hosts with new hostname
+  lineinfile:
+    path: /etc/hosts
+    regexp: '^127\.0\.1\.1\s+.*'
+    line: "127.0.1.1 {{ target_hostname }}.{{ samba_realm }} {{ target_hostname }}"
+    state: present
+
+- name: Get current server IP address
+  shell: |
+    # Get the IP of the default route interface
+    ip route get 8.8.8.8 | grep -oP 'src \K\S+' | head -1
+  register: current_server_ip
+  changed_when: false
+
+- name: Add domain entry to /etc/hosts
+  lineinfile:
+    path: /etc/hosts
+    regexp: "^{{ current_server_ip.stdout }}\\s+.*"
+    line: "{{ current_server_ip.stdout }} {{ target_hostname }}.{{ samba_realm }} {{ target_hostname }}"
+    state: present
+