scicore.benji_backup

Deploy benji backup using docker containers.

Requirements

This role assumes docker daemon is already installed in the destination host.

You also need the ansible collection community.docker.docker_compose. This collection is probably already available in your system if you have installed ansible but you can also install it with ansible-galaxy collection install community.docker)

Some examples

All the examples are executed in the host running the docker daemon (outside the container)

List volumes in a ceph pool

This assumes the ceph client is "benji"

benji-backups$> sudo rbd --id benji -p volumes ls
volume-29c99562-9882-481f-aecc-d5b2d104057a
volume-e30044c2-61b7-40c3-805c-26a7ece9b2fb

Backup a volume from pool "volumes"

$1 = ceph pool
$2 = volume name

$> benji-backup volumes 29c99562-9882-481f-aecc-d5b2d104057a

Restore a volume

Before you restore a volume it's recommended to stop the destination VM using openstack stop vm_id

You also have to identify to which ceph pool you have to restore the volume. Details below:

VMs booted from an image

When booting a VM from an image the root volume will be stored in ceph pool vms. The volume name is in format "${vm_id}_disk" e.g.

benji-backups$> sudo rbd --id benji -p vms ls
0a5f5bb5-3870-47a5-9925-934065f29bac_disk

VMs booted from a volume or extra volumes attached to a VM

Openstack volumes are stored in ceph pool volumes. The volume name format is "${volume_id}" e.g.

benji-backups$> sudo rbd --ide benji -p volumes ls
e30044c2-61b7-40c3-805c-26a7ece9b2fb

Restore a volume

$1 = benji backup uid (get it using benji-list)
$2 = destination ceph pool
$3 = volume name (this must exist in the pool and it will be overriden with the backup data)

$> benji-restore -f volumes/volume-29c99562-9882-481f-aecc-d5b2d104057a-t6ueth volumes e30044c2-61b7-40c3-825c-24a7e4ee9b2fb

License

Apache 2.0