[GH-ISSUE #3676] [FEATURE] Immediately update server when nobody is connected #2439

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opened 2026-02-27 03:02:57 +03:00 by kerem · 3 comments

kerem commented

2026-02-27 03:02:57 +03:00

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Originally created by @hapklaar on GitHub (Nov 10, 2021).
Original GitHub issue: https://github.com/GameServerManagers/LinuxGSM/issues/3676

I run a Valheim server with LGSM. Using crontab I schedule the 'vhserver update' command every 24 hours at 0400. If an update is found, it will force update the server at that time.

This is far from ideal, as updates can take up to 24 hours to be applied this way.

I would very much like a feature where the server is immediately updated after an update is found, but only if the server is empty.
It would also be useful to be able to message connected users that an update has been found and the server needs to be empty to apply the update immediately.

Originally created by @hapklaar on GitHub (Nov 10, 2021). Original GitHub issue: https://github.com/GameServerManagers/LinuxGSM/issues/3676 I run a Valheim server with LGSM. Using crontab I schedule the 'vhserver update' command every 24 hours at 0400. If an update is found, it will force update the server at that time. This is far from ideal, as updates can take up to 24 hours to be applied this way. - I would very much like a feature where the server is immediately updated after an update is found, but only if the server is empty. - It would also be useful to be able to message connected users that an update has been found and the server needs to be empty to apply the update immediately.

kerem added the

type: feature

command: update

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2026-02-27 03:02:57 +03:00

kerem commented

2026-02-27 03:02:58 +03:00

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@JimTR commented on GitHub (Nov 19, 2021):

not too difficult to do
you need to create a script that looks for the string that intimates the server needs updating from the server log
source games add this to the log "Your server needs to be restarted in order to receive the latest update."
example
$update = cat <serverlog> |grep "Your server needs to be restarted in order to receive the latest update."
if $update is not empty you need to update so therefore run the script to stop the server, then the script to update the server followed by some code to rename/delete the log (else you end up in a loop, can not remember if lgsm renames/deletes the log on restart) then a script to restart the server. I am no good at bash but there is an example written in PHP which does this but be aware as this was written for a different project some of the code does not pertain to LGSM but could be adapted or converted to bash. The referenced code has been running for a couple of years now (in one form or another) and to be fair normally updates the server within a couple of mins of a server update. If you edit/adapt this code and run it as a cron job I guess you will be sorted #
don't forget to add the script as a cron running every x mins

@JimTR commented on GitHub (Nov 19, 2021): not too difficult to do you need to create a script that looks for the string that intimates the server needs updating from the server log source games add this to the log "Your server needs to be restarted in order to receive the latest update." example `$update = cat <serverlog> |grep "Your server needs to be restarted in order to receive the latest update."` if $update is not empty you need to update so therefore run the script to stop the server, then the script to update the server followed by some code to rename/delete the log (else you end up in a loop, can not remember if lgsm renames/deletes the log on restart) then a script to restart the server. I am no good at bash but there is an example written in PHP which does [this](https://github.com/JimTR/PHPgsm/blob/master/cron/cron_scan.php) but be aware as this was written for a different project some of the code does not pertain to LGSM but could be adapted or converted to bash. The referenced code has been running for a couple of years now (in one form or another) and to be fair normally updates the server within a couple of mins of a server update. If you edit/adapt this code and run it as a cron job I guess you will be sorted # don't forget to add the script as a cron running every x mins

kerem commented

2026-02-27 03:02:58 +03:00

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@hapklaar commented on GitHub (Nov 19, 2021):

The cmd to check if an update is available and update when true is already there, but the problem is both methods will shutdown the server and update, whether it is empty or not. I only want it updated immediately when nobody is connected, to prevent players from being thrown of the server without warning.

@hapklaar commented on GitHub (Nov 19, 2021): The cmd to check if an update is available and update when true is already there, but the problem is both methods will shutdown the server and update, whether it is empty or not. I only want it updated immediately when nobody is connected, to prevent players from being thrown of the server without warning.

kerem commented

2026-02-27 03:02:58 +03:00

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@JimTR commented on GitHub (Nov 20, 2021):

If you read the code I use the xpaw lib to check if the server has visitors or not perhaps look at this code instead which may be clearer here, so if you have php on your server I could adapt the code to suit your needs

@JimTR commented on GitHub (Nov 20, 2021): If you read the code I use the xpaw lib to check if the server has visitors or not perhaps look at this code instead which may be clearer [here](https://github.com/JimTR/PHPgsm/blob/master/cron/cron_r.php), so if you have php on your server I could adapt the code to suit your needs

kerem referenced this issue

2026-02-27 03:55:18 +03:00

[PR #2439] [MERGED] Release v19.9.0 #3652