Enhance Ansible playbooks and documentation for Debian and Proxmox management. Add new playbooks for Debian hardening, maintenance, SSH key rotation, and Proxmox cluster setup. Update README.md with quick start instructions for Debian and Proxmox operations. Modify group_vars to include Argo CD application settings, improving deployment flexibility and clarity.

ansible/roles/debian_maintenance/tasks/main.yml

@@ -0,0 +1,30 @@
+---
+- name: Refresh apt cache
+  ansible.builtin.apt:
+    update_cache: true
+    cache_valid_time: "{{ debian_maintenance_apt_cache_valid_time }}"
+
+- name: Upgrade Debian packages
+  ansible.builtin.apt:
+    upgrade: "{{ debian_maintenance_upgrade_type }}"
+
+- name: Remove orphaned packages
+  ansible.builtin.apt:
+    autoremove: "{{ debian_maintenance_autoremove }}"
+
+- name: Clean apt package cache
+  ansible.builtin.apt:
+    autoclean: "{{ debian_maintenance_autoclean }}"
+
+- name: Check if reboot is required
+  ansible.builtin.stat:
+    path: /var/run/reboot-required
+  register: debian_maintenance_reboot_required_file
+
+- name: Reboot when required by package updates
+  ansible.builtin.reboot:
+    reboot_timeout: "{{ debian_maintenance_reboot_timeout }}"
+    msg: "Reboot initiated by Ansible maintenance playbook"
+  when:
+    - debian_maintenance_reboot_if_required | bool
+    - debian_maintenance_reboot_required_file.stat.exists | default(false)