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Quick question as I couldn't see in the docs or here -- is it possible to have docker images dependent on other docker images, so that if files for a base image change, then the base image is rebuild and downstream images?

I think so.

<https://blog.pantsbuild.org/optimizing-python-docker-deploys-using-pants/>

Thanks! Was thinking it should be supported. Will test that out.

Oh good find, would you mind filing a doc issue?

Because there’s also dep inference support for referring to your upstream `docker_image`s in the `FROM` instruction, which is not demonstrated in that excellent blog post.

In lack of docs, the tests may serve as a slightly harder to read example: <https://github.com/pantsbuild/pants/blob/a21d8cb9b90289b1ef09e76283ad3fff3d35d8d0/src/python/pants/backend/docker/util_rules/dependencies_test.py#L93-L103|https://github.com/pantsbuild/pants/blob/a21d8cb9b90289b1ef09e76283ad3fff3d35d8d0/[…]src/python/pants/backend/docker/util_rules/dependencies_test.py>

Thanks - added <https://github.com/pantsbuild/pants/issues/17625>