Add option to create tags for the built image

[ceccone]

This commit adds configuration to the Maven and Gradle plugins to allow specifying multiple tag names to be created for the built image.

Resolves #20560

[scottfrederick]

@ceccone Thank you very much for your contribution. It has been merged along with a polishing commit and some changes to DockerApi to make tests pass.

[nithril]

Hello,

It does not seems possible to publish multiple tags by using a maven properties (like with jib Use -Djib.to.tags=a,b,c)

Could you please confirm if my understanding is correct?

[scottfrederick]

@nithril Your understanding is correct. In the updated snapshot documentation, there is no (User Property) provided for tags, so any additional tags must be provided in the pom.xml build configuration.

[VitaliyKulikov]

something wrong has been implemented for option: tags.
let's say we have the following:

  tags = listOf("bbb", "aaa")

instead of creating images, like: <image_name>:bbb, <image_name>:aaa
new images will be created bbb:latest, aaa:latest

id("org.springframework.boot") version "2.7.5"

[wilkinsona]

@VitaliyKulikov If you believe you have found a bug, please open a new issue with a minimal sample that reproduces the problem.