feat: hypervisor_backup_config role and playbook

roles/hypervisor_backup_config/defaults/main.yml

@@ -0,0 +1,51 @@
+---
+# =============================================================================
+# hypervisor_backup_config — defaults
+# =============================================================================
+
+# Backup destinations — list, supports git | local | sftp
+# All configured destinations are used in sequence
+pve_config_backup_destinations:
+  - type: git
+
+# Number of backups to retain for local and sftp destinations
+# git retention is managed by git history
+pve_config_backup_keep: 10
+
+# Date string used in filenames
+pve_config_backup_date: "{{ ansible_date_time.date }}"
+
+# Filename template (no extension — .tar.gz added for local/sftp)
+# e.g. proxmox_client_local_eng_pm-node-01_config_2026-03-13
+pve_config_backup_filename: "{{ hypervisor_type }}_{{ client_id | lower | replace('-','_') | replace(' ','_') }}_{{ inventory_hostname }}_config_{{ pve_config_backup_date }}"
+
+# Files/dirs to back up per hypervisor type
+pve_config_backup_paths_proxmox:
+  - /etc/pve
+  - /etc/network/interfaces
+  - /etc/hosts
+  - /etc/hostname
+  - /etc/apt/sources.list
+  - /etc/apt/sources.list.d
+
+pve_config_backup_paths_xcpng:
+  - /etc/xensource
+  - /etc/network/interfaces
+  - /etc/hosts
+  - /etc/hostname
+
+# Git settings
+pve_config_git_repo_dir: /opt/ansible-msp-automations
+pve_config_git_branch: main
+pve_config_git_base_path: "hypervisor_configs/{{ client_id | lower | replace(' ','_') }}/{{ hypervisor_type }}/{{ inventory_hostname }}"
+pve_config_git_commit_message: "[{{ client_id }}] {{ inventory_hostname }} pre-upgrade config backup {{ pve_config_backup_date }}"
+
+# Local settings
+pve_config_local_backup_dir: /var/backups
+
+# SFTP settings
+pve_config_sftp_host: ""
+pve_config_sftp_user: ""
+pve_config_sftp_key: ""
+pve_config_sftp_remote_dir: "."
+