Checkmk Werk 11098: Proxmox: add VM backup status check

ID: 11098 Title: Proxmox: add VM backup status check Component: Checks & agents Level: 2 Class: New feature Version: 1.7.0i1 This check makes sure every VM has a recent backup. The information is taken from log entries collected by the agent via API since Proxmox does not provide us with backup status (yet?). The check plugin optionally checks against existence and age of the last backup and shows some additional info like date, size and bandwidth.