vzpbackup

OpenVZ Container Backup - for containers using ploop storage

The scripts are meant to provide a backup solution to backup containers that use ploop storage. Traditional storage is not supported by the scripts. The scripts are based on the OpenVZ wiki page regarding image backup: http://openvz.org/Ploop/Backup

BACKUP: vzpbackup.sh

Usage: ./vzpbackup.sh
	[--suspend=<yes/no>]
	[--backup-dir=<Backup-Directory>]
	[--work-dir=<Temp-Directory>]
	[--compress=<no/pz/bz/pbz/tbz/gz/tgz/xz/txz>]
	[--compact]
	[--all]
	<CTID> <CTID>

Backup a container with container ID 200:

vzpbackup.sh --suspend=yes --compress=gz 200

Options:

--suspend=<yes/no> (Default: no)

This will result in calling vzctl snapshot without the
parameter "--skip-suspend" resulting in a snapshot of
the running container being included in the backup.
If you restore that backup using vzprestore.sh, you can
resume the container after the restore has finished.

--backup-dir=<Directory> (Default: /store/vzpbackup)

Parameter to change the default backup directory. Either
use the parameter or change the script. The temporary
files created (The backup tar file for example) will be 
    created in this directory.

--work-dir=<Directory> (Default: /store/vzpbackup)

Parameter to change the default working directory. Either
    use the parameter or change the script.

--compact

Runs vzctl compact for each container before initiating
the backup

--compress=<Compression> (Default: no(ne))

Allows you to compress the resulting archive file using either
bzip2, pigz, pbzip2, gzip or xz to save some disk space.

Possible options:

--compress=no  - No compression of backup archives
--compress=pz  - Compress with pigz (needs to be installed)
--compress=bz  - Compress with bzip2 (needs to be installed)
--compress=tbz - Compress through tar command with bzip2
--compress=gz  - Compress via gzip (needs to be installed)
--compress=tgz - Compress through tar command with gzip
--compress=xz  - Compress via xz (needs to be installed)
--compress=txz - Compress through tar command with xz
--compress=pbz - Compress with pbzip2 (needs to be installed)

--all

This will backup _all_ containers that are currently
configured on the host (Every container returned by
"vzlist -Hoctid"). Currently there is no option to
exclude specific CTIDs from the backup.

--exclude=<CTID>

Exclude specified CTID from being backed up. Most useful
while using --all

RESTORE: vzprestore.sh

Usage: ./vzprestore.sh
	[--ip=<New IP>]
	[--hostname=<New Hostname>]
	[--description="<New Description>"]
	[--vzdir=<Directory to restore VE_PRIVATE and VE_ROOT to>]
	[--confirm=<yes/no>]
	[--delete-backup-snapshot=<yes/no>]
	<Filename> <CTID>

You need to give at least <Filename> and <CTID> as arguments

Restore a backup to a new container 250:

vzprestore.sh /store/vzpbackup/vzpbackup_200_test.host.tar 250

Options:

--confirm=<yes/no>

Confirm what is being done prior execution.

--delete-backup-snapshot=<yes/no>

Delete (switch to it and delete it) the snapshot created during
    backup creation. Note: Any memory dumps will be lost if you do it
    at this stage after restoring the container.

--vzdir=<VZ Directory for VE_PRIVATE and VE_ROOT>

    Instead of using the default VE_PRIVATE and VE_ROOT from the
    default OpenVZ configuration (/etc/vz/vz.conf), create the
    VE_ROOT and VE_PRIVATE in the directory given by the vzdir
    option

Requirements:

• OpenVZ virtual machines using ploop as storage
• uuidgen to create IDs for backups

Author: Andreas Faerber, af@maeh.org