Auto Image delete

[awptechnologies]

How do i configure shepherd to not keep any old images? Rn i have image keep set to 1 but i would like it to delete any old images after updating. Is that a possibility? Can i just put the value to 0?

[moschlar]

I haven't personally tested it, but setting IMAGE_AUTOCLEAN_LIMIT: 0 should do the trick.

But keep in mind, that the image autoclean functionality currently only runs on the node where the shepherd container itself runs: #84

[awptechnologies]

is there anyway to get it to run cluster wide?

[moschlar]

Maybe, swarm-cronjob has gotten more reliable when running jobs in global mode, so I would recommend you should try it out like described in https://crazymax.dev/swarm-cronjob/examples/prune-swarm-nodes/.

But maybe it is not already fixed:
crazy-max/swarm-cronjob#20
🤔

[djmaze]

No, swarm-cronjob probably does not work yet with global mode.

In order to not have to work around this limitation anymore, I just built a new service which you can just run separately in global mode: https://github.com/djmaze/docker-autoprune

[martadinata666]

I'm using swarm-cronjob and it works pretty well. But I'm not using that setting with the issue attached to a minimal 2 nodes with 1 manager.

[djmaze]

Just tried with swarm-cronjob again. With 3 (manager-only) nodes, it still only runs the job on 2 of them. Tested on Docker v20 as well as v24. So the problem described in crazy-max/swarm-cronjob#20 still exists.