Generate specific tags for JDK Images

[james-crowley]

When dealing with packages, jre and jdk, there is a tag for jre images. For example, jre-nightly, points to the nightly build of jre. There is no specific tag for jdk, which results in the image being tag as just nightly.

For clarity, there should be a specific tag for jdk builds. I am fine with have a tag for just nightly as long as there is another tag pointing to the same image called jdk-nightly.

This would make automation easier and provide more clarity for users.

[james-crowley]

It looks like the official images already have this.

It would be nice to seem more similarity between the unofficial and official images.

[smlambert]

+1 on this request, it will make the task of test automation far easier

[segaura]

+1, this issue has security implications in continuous integration, also

referring to the unofficial image, I am able to pull the latest jre patch this way

docker pull adoptopenjdk/openjdk11:alpine-jre

but, with jdk, I need to change this command whenever a new image version is released

docker pull adoptopenjdk/openjdk11:x86_64-alpine-jdk-11.0.6_10-slim

increasing the risk of building with an unpatched image