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webmin/update-playbook.yml

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+---
+- name: Safely update Webmin on all hosts
+  hosts: all
+  become: yes
+  vars:
+    webmin_repo: "deb http://download.webmin.com/download/repository sarge contrib"
+    webmin_key_url: "http://www.webmin.com/jcameron-key.asc"
+
+  tasks:
+
+    - name: Ensure required packages are installed for HTTPS repositories
+      apt:
+        name:
+          - apt-transport-https
+          - software-properties-common
+          - gnupg
+        state: present
+        update_cache: yes
+
+    - name: Add Webmin GPG key (idempotent)
+      ansible.builtin.apt_key:
+        url: "{{ webmin_key_url }}"
+        state: present
+
+    - name: Ensure Webmin repository is present
+      ansible.builtin.apt_repository:
+        repo: "{{ webmin_repo }}"
+        state: present
+
+    - name: Update apt cache
+      apt:
+        update_cache: yes
+
+    - name: Check if Webmin is installed
+      command: dpkg -l webmin
+      register: webmin_installed
+      ignore_errors: yes
+
+    - name: Upgrade Webmin if installed
+      apt:
+        name: webmin
+        state: latest
+      when: webmin_installed.rc == 0
+
+    - name: Install Webmin if not installed
+      apt:
+        name: webmin
+        state: present
+      when: webmin_installed.rc != 0
+
+    - name: Ensure Webmin service is running
+      systemd:
+        name: webmin
+        state: restarted
+        enabled: yes