Overview

Puppet module to backup a file system and send it to a remote server via SSH

Variables needed

Required

# List of backup server to use $backup_servers = ['server1', 'server2'] # Mounts to exclude, separated by a pipe $backup_exclude_mounts_regex = 'home|backups' # Directories to exclude, space separated. To override on a per-node basis, # remove from site.pp and add to the node definition $backup_exclude_dirs = '/tmp /var/tmp' # Files to exclude, space separated. To override on a per-node basis, # remove from site.pp and add to the node definition $backup_exclude_files = '/etc/passwd'

# number of days backups to keep $backup_days_to_keep = 3 # SSH user on backup host $backup_username = 'backups' # Don't backup filesystems greater than (in GB) $backup_max_fs_size = 249

Set up

Backup server

node 'backupserver.mydomain' {

include backup

}

Backup target

node 'host-needing-backup.mydomain {

include backup::target

}

SSH Keys

The backup class depends on the following being defined somewhere It needs to be on every node that you are backing up.

# Define root's ssh key @@ssh_authorized_key { "root@$fqdn":

type => ssh-rsa, key => $rootsshkey, user => $backup_username, tag => 'host',

}

# Generate a new SSH key, if it doesn't exist exec { "generate-new-key":

command => "ssh-keygen -q -t rsa -f /root/.ssh/id_rsa -N ''", path => "/usr/bin:/usr/sbin:/bin:/sbin", creates => "/root/.ssh/id_rsa.pub",

}