Auto clean unused docker images

[rvalitov]

Hi!
It seems that MTProxyMax does not auto clean the old docker images, so when updating actively my disk space is consumed with the old useless docker images. It would be nice if MTProxyMax would auto delete them.

[SamNet-dev]

Fixed in 6198204.

Old engine images are now automatically cleaned up after a successful engine upgrade. Only the current version and latest tag are kept — both local (mtproxymax-telemt:*) and registry-prefixed (ghcr.io/...) copies are pruned.

mtproxymax update to pick this up.

[rvalitov]

I have updated to the latest version, but still see all the docker images. Should they disappear already or with the next update only?

[SamNet-dev]

The auto-cleanup triggers on the next engine upgrade — it runs after a new engine image is pulled. Since you just updated and the engine was already at v3.3.32, there was no engine change to trigger the cleanup.

For now you can clean them up manually:

docker images | grep mtproxymax-telemt
# Remove old ones:
docker rmi mtproxymax-telemt:3.3.18-2be3e4a mtproxymax-telemt:3.3.22-1544e3f mtproxymax-telemt:3.3.25-67dc1e8 mtproxymax-telemt:3.3.31-aed7ba1
# Also the registry-prefixed copies:
docker rmi ghcr.io/samnet-dev/mtproxymax-telemt:3.3.18-2be3e4a ghcr.io/samnet-dev/mtproxymax-telemt:3.3.22-1544e3f ghcr.io/samnet-dev/mtproxymax-telemt:3.3.25-67dc1e8 ghcr.io/samnet-dev/mtproxymax-telemt:3.3.31-aed7ba1

I'll also push an update that runs cleanup on any update, not just engine upgrades — so existing old images get cleared automatically.