Reproducer for MNG-8486

This example requires a local Docker daemon to be running. I've used Rancher Desktop for this reproducer myself, but it shouldn't matter which one you use.

Successful flow with Maven 3.9.9

Compile the code and let Jib build a container image to your local Docker daemon and provide the name via a property on the command line (as shown here in the Jib documentation):

❯ mvn compile jib:dockerBuild -Djib.to.image=foo:bar
(...)
[INFO] Built image to Docker daemon as foo:bar
(...)

You should now have a foo:bar image:

❯ docker images | grep foo
foo              bar              36025ca8871e   55 years ago   287MB

Feel free to remove it again:

❯ docker rmi foo:bar

Unsuccessful flow with Maven 4.0.0-rc-2

Compile the code and let Jib build a container image to your local Docker daemon and provide the name via a property on the command line (as shown here in the Jib documentation):

❯ mvn compile jib:dockerBuild -Djib.to.image=foo:bar
(...)
[INFO] Built image to Docker daemon as example:1.0.0-SNAPSHOT
(...)

It seems that the jib.to.image property is not picked up, and the image gets a default name based on the project's artifactId and version. However, I would have expected to end up with a foo:bar image instead of an example:1.0.0-SNAPSHOT image, just like with Maven 3.9.9.

To confirm, you will now not have a foo:bar image:

❯ docker images | grep -c foo                        
0

And you will indeed have an example:1.0.0-SNAPSHOT image:

❯ docker images | grep example
example          1.0.0-SNAPSHOT   36025ca8871e   55 years ago   287MB

Feel free to remove it again:

❯ docker rmi example:1.0.0-SNAPSHOT