add short documentation on PBS backups

This patch adds a short documentation for the PBS integration in PMG.
It aims to provide a very terse walkthrough the newly created pmgbackup
subcommands.

updated screenshot (and the newly referenced one) will be provided off-list
due to their size.

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
This commit is contained in:
Stoiko Ivanov 2020-11-16 18:57:39 +01:00 committed by Thomas Lamprecht
parent b86b6da331
commit 18734510e9

View File

@ -35,8 +35,15 @@ mail filter rules and the statistic database.
NOTE: The backup does not include the network setup, and also no mail
data from the postfix queue or the spam or virus quarantine.
You can create a backup by simply pressing the 'Backup' button on the
GUI, or by using the command line interface:
Backups can be created locally or stored on a
https://www.proxmox.com/en/proxmox-backup-server[Proxmox Backup Server]
instance.
Local Backups
-------------
You can create a backup by simply pressing the 'Backup' button in the 'Local
Backup/Restore' tab on the GUI, or by using the command line interface:
----
# pmgbackup backup
@ -44,7 +51,7 @@ starting backup to: /var/lib/pmg/backup/pmg-backup_2018_01_04_5A4E0436.tgz
backup finished
----
Backups are stored inside directory `/var/lib/pmg/backup/`. It is
Local backups are stored inside directory `/var/lib/pmg/backup/`. It is
usually best to mount a remote file system to that directory, so that
the resulting backups gets stored remotely.
@ -90,7 +97,118 @@ Analyzing/Upgrading existing Databases...done
restore finished
----
Proxmox Backup Server
---------------------
In order to backup your {pmg} configuration on a Proxmox Backup Server you
need configure the instance as backup 'remote'. You can then directly create
and restore backups, as well as create a scheduled 'backup job' to run
regular backups.
Remotes
~~~~~~~
ifndef::manvolnum[]
[thumbnail="pmg-gui-pbs-remote.png", big=1]
endif::manvolnum[]
A Proxmox Backup Server remote can be configured using the 'Proxmox Backup
Server' panel in the 'Backup/Restore' menu of the GUI, or by using the
`remote` subcommand of `pmgbackup`:
----
# pmgbackup remote add backup --datastore big --server backup.proxmox.com --user 'pmgbackup@pbs!token' --password --fingerprint 09:54:ef:..snip..:88:af:47:fe:4c:3b:cf:8b:26:88:0b:4e:3c:b2
Enter new password: ******
Retype new password: ******
----
You can use API Tokens in place of a username/password combination.
If the remote certificate is signed by a CA trusted by {pmg} the fingerprint
is not required.
Additionally you can configure `prune-settings` for each remote to control
how many backups should be stored on the Proxmox Backup Server:
----
# pmgbackup remote set backup --keep-last 5 --keep-daily 30 --keep-yearly 5
----
The backup-group is pruned after each successful backup according to the
configured settings.
The public settings are stored in `/etc/pmg/pbs/pbs.conf`, sensitive settings,
like passwords are stored in individual files named after the remote inside
`/etc/pmg/pbs/`:
.Configuration Example (`/etc/pmg/pbs/pbs.conf`)
----
pbs: backup
datastore big
server backup.proxmox.com
fingerprint 09:54:ef:..snip..:88:af:47:fe:4c:3b:cf:8b:26:88:0b:4e:3c:b2
keep-daily 30
keep-last 5
keep-monthly 3
keep-yearly 5
username pmgbackup@pbs!token
----
Backup Jobs
~~~~~~~~~~~
With a configured remote you can create backups using the GUI or the
`pbsjob` subcommand of `pmgbackup`:
----
# pmgbackup pbsjob run backup
starting update of current backup state
Starting backup: host/pmg/2020-11-16T16:38:39Z
Client name: pmg
Starting backup protocol: Mon Nov 16 16:38:39 2020
Upload directory '/var/lib/pmg/backup/current' to 'pmgbackup@pbs!token@backup.proxmox.com:8007:local' as pmgbackup.pxar.didx
pmgbackup.pxar: had to upload 188.33 KiB of 188.33 KiB in 0.00s, average speed 162.33 MiB/s).
Uploaded backup catalog (145 B)
Duration: 0.06s
End Time: Mon Nov 16 16:38:39 2020
backup finished
starting prune of host/pmg
prune finished
----
For restoring you can optionally select a particular backup-snapshot to return
to the state of configuration and rules at that time. If you don't provide one
the latest backup is restored:
----
# pmgbackup pbsjob restore backup --backup-time 2020-11-16T14:03:04Z
starting restore of host/pmg/2020-11-16T14:03:04Z from backup
..snip..
restore finished
----
You can mark a particular snapshot for garbage collection by Proxmox Backup
Server, by forgetting it:
----
# pmgbackup pbsjob forget backup 2020-11-16T14:03:04Z
----
Scheduled Backups
^^^^^^^^^^^^^^^^^
You can create a `Schedule` for each remote, to periodically create backups of
your {pmg} - for example to run a daily backup at 03:50:00 with a randomized
delay of 15 minutes each day:
----
# pmgbackup pbsjob create backup --schedule '*-*-* 03:50:00' --delay '15 minutes'
----
The randomized delay can help to prevent load-peaks on the backup server, if
you have multiple backups, which all should start around the same time.
The schedules are `systemd.timer` units. See the `systemd.time(7)` man page for
details on the time specification used.
ifdef::manvolnum[]