Backups option for only when players are in world?

[BackedUpBooty]

First up, this is an awesome image, thank you for putting it together. It really does what I need.

One thing I've seen on another image is an env variable that allows the server to only perform a backup if there are players, and it will pause backups when no one is on. I took a look through the 'default' list you have, I'm already using RESTART_IF_IDLE and UPDATE_IF_IDLE but I couldn't see one for backups. Does the variable BACKUP_IF_IDLE exist and can it be used?

Again, thanks for the work!

[lloesche]

Good idea. We could add that function, but to be reliable it should create backups up to like 40 min. after the last player disconnected as the world is saved on a 20min timer and we would want a consistent .old file in our backup. Otherwise the backup might contain a corrupted world file and/or missing the last 20 min of building progress.

[BackedUpBooty]

Great points, yes I'd kind of wondered about that myself but didn't want to put too much into my first post :)

[lloesche]

I just pushed 6453ae6 which adds BACKUPS_IF_IDLE and BACKUPS_IDLE_GRACE_PERIOD.

See https://github.com/lloesche/valheim-server-docker#environment-variables and https://github.com/lloesche/valheim-server-docker#backups for details.

[BackedUpBooty]

Super awesome, thank you!