How Can I Automatically Clean Up Old Docker Images?

I usually set up a cron job that runs `docker system prune` monthly. It's a simple way to clean up old images without much hassle. Also, I've heard of tools like Dokploy that might have their own cleanup features, but I haven't checked if it's just a wrapper around the system prune command or something more complex.

Just a heads up, the `--filter` option doesn't currently allow filtering by age or last time used. So it's best to double-check if what you're aiming for is supported. There’s an open issue on GitHub for this topic, which you can refer to here: [GitHub Issue#4237](https://github.com/moby/moby/issues/4237).

Honestly, you don't need to complicate things. Just create a cron job to handle the cleanup. In the past, I used to write detailed scripts to avoid accidentally removing important images, but Docker has improved significantly over the years. You can use the `--filter` option to fine-tune the clean-up based on age or last usage—just make sure to check the current capabilities of that filter!