Pour la section sur comment export importer la DB en snap.

sudo snap set rocketchat-server backup-on-refresh=enable | pour des backup auto

Backup lui-même:

sudo service snap.rocketchat-server.rocketchat-server stop
sudo snap run rocketchat-server.backupdb

Restore:

sudo service snap.rocketchat-server.rocketchat-server stop
sudo cp rocketchat_backup.tgz /var/snap/rocketchat-server/common/
sudo snap run rocketchat-server.restoredb /var/snap/rocketchat-server/common/rocketchat_backup.tgz