my question is similar to https://help.univention.com/t/zammad-app-migration-to-new-ucs-installation/13354
The docker app zammad creates multiple docker instances
zammad_zammad-backup_1 zammad_zammad-memcached_1 zammad_zammad-postgresql_1 zammad_zammad-scheduler_1
zammad_zammad-elasticsearch_1 zammad_zammad-nginx_1 zammad_zammad-railsserver_1 zammad_zammad-websocket_1
the zammad_zammad-backup_1 creates backups of file and the database
but I am unable to perform a restore from this docker instance
root@ucs1:/etc# docker exec -it zammad_zammad-backup_1 /bin/bash bash-5.0# su - zammad 14dfd419171a:~$ /opt/zammad/contrib/backup/zammad_restore.sh # Zammad restored started - Tue Jan 5 09:15:24 UTC 2021! The restore will delete your current config and database! Be sure to have a backup available! Enter 'yes' if you want to proceed! Restore?: yes Enter file date to restore: 20201224164307 20210104163206 20210105082916 File date: 20201224164307 Enter db date to restore: 20201224164307 20210104163206 20210105082916 DB date: 20201224164307 # Stopping Zammad /opt/zammad/contrib/backup/functions: line 132: service: command not found # Restoring Files # Ensuring correct file rights ... chown: unknown user/group zammad:zammad # Checking requirements # ... Dropping current database zammad_production env: can't execute 'ruby': No such file or directory # ... Creating database zammad_production for owner zammad env: can't execute 'ruby': No such file or directory # Restoring PostgrSQL DB su: must be suid to work properly # Starting Zammad /opt/zammad/contrib/backup/functions: line 132: service: command not found # Zammad restored successfully - Tue Jan 5 09:15:35 UTC 2021!
From wich of the instances I have to start the restore ? in order that it has the correct environment?