a docker:tag goal (or tagBaseImage option on docker:build/push) would be great - so we could tag (or re-tag) after pulling a base image before releasing new images

[fabric8io]

a docker:tag goal (or tagBaseImage option on docker:build/push) would be great - so we could tag (or re-tag) after pulling a base image before releasing new images

[rhuss]

I wonder how this is different to have a tag in the base image definition:

<build>
   <from>busybox:ubuntu-12.04</from>
   ...
</build>

If I understand you right, you want an extra indirection: Let's say you specify as base image busybox:my-release using a tag my-release which is not available on a registry but only locally. This would be fetched with e.g.:

mvn docker:pull busybox:ubuntu-12.04 -Ddocker.tag=my-release

Is that your use case ?

[rhuss]

Ah, I think I understand a bit more:

You want to have a temporary tag for a (possibly multimodule) build, so that every build uses the same base image version during this build ?

It's not about tagging the base image in the registry, but only locally (and temporarily).

Is that what you think about ?