Yeah…but post 15 assumed a proper setup, it is not dealing with a end-2-end docker install. So, did you at any point for the first install use a volume (along the link by Mariushosting). Without that, HA would still start and work but all the settings will be inside the container (in the /config), making it near-impossible to refresh…the idea of mapping /config on a volume is to put all the HA settings external to the container… but I am not here to explain container/docker setuo, just asking if you created a volume for for your setup before…if that is the case then you just need to make sure if gets connected to the new one the very same way
Now using /config mountpoint and extracted last backup in it.
HA back in service. Thanks!