fix(agent): handle context cancellation

[ivaltryek]

Fixes #5238

[ivaltryek]

Hey @anbraten , this is my first PR, wanted to fix the issue mentioned in the description. I've tested on my local but I don't have proper setup to test it in the way issue is reported.

i.e

1. Run the server
2. Run agent on different clusters / machines
3. Restart the server
4. see if the agent across different cluster are still accepting jobs, without restarting the agents.

[qwerty287]

Thanks @ivaltryek!

For testing, let's ask the reporters: @meetatmoe @greenaar @Deddinho23

Once the CI run at https://ci.woodpecker-ci.org/repos/3780/pipeline/27427 completed, you can use the pull_5323-alpine docker tag.

[Deddinho23]

Thanks @ivaltryek!

For testing, let's ask the reporters: @meetatmoe @greenaar @Deddinho23

Once the CI run at https://ci.woodpecker-ci.org/repos/3780/pipeline/27427 completed, you can use the pull_5323-alpine docker tag.

Hi guys!
I just did a quick test and it seems to work with this version! If I notice any problems with further use, I'll let you know ASAP. Thanks for now!

[meetatmoe]

Is the latest agent version is not compatible with server v3.8.0? Getting this error

Hmm, seems like it. any stable server build I can try (released after v3.8.0) ?

NVM, Will try same pull_5323-alpine for server as well.

{"level":"error","error":"GRPC version mismatch","time":"2025-07-16T05:44:08Z","message":"server version 3.8.0 does report grpc version 12 but we only understand 13"}

[meetatmoe]

@qwerty287 @ivaltryek Just tested now, looks good to me. After server restart, I've triggered few jobs on different agents, they seem to be running on agents without restarts.

[qwerty287]

I'll merge this for now as it seems to resolve the issue for most users.

[qwerty287]

@ivaltryek please fix the linter https://ci.woodpecker-ci.org/repos/3780/pipeline/27427/30

[ivaltryek]

@qwerty287 Please approve the pipeline, Thanks!

[ivaltryek]

@qwerty287 Lint is good now, okay to be merged!