Add feature for printing name of image

[trpouh]

Description

Add a feature (e.g. docker.image) that prints the name of the resolved image name.

Info

In our pipeline we use the docker-maven-plugin to build a docker image with docker-build. The subsequent job conducts a security scan of the previously build image with Trivy. However there seems to be no intuitive/stable way of passing the docker image name to trivy (or extract it at all).

possible options we evaluated: regex parsing the build output, mvn help:evaluate the artifact name/plugin config

I suggest implementing a feature (e.g. docker:build -DprintOnly) that resolves all possible flags that can be configured for the Image Name and prints the image name to the console.

A workflow could then look something like the following (simplified for reading purposse):

mvn docker:build
image = $(mvn docker:build -q -DprintOnly)

trivy image $image

If this feature is considered useful, I'd be more than happy to implement this feature myself!

[rohanKanojia]

Umm, If I understand correctly are you asking for printing name of the image built by docker maven plugin? Isn't it something we're doing already? I'm able to see the image name during a normal image build like this:

[INFO] DOCKER> [username/dmp-demo-project:foo] "dockerfile": Built image sha256:d0c66
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  20.744 s
[INFO] Finished at: 2023-11-17T19:41:32+05:30
[INFO] ------------------------------------------------------------------------

[trpouh]

Yes but the only way to extract the image name is by using a regex, which can cause some trouble when using different shells (pipeline vs locally - at least in my experience) and could potentially break if the output of the docker command changes.