Improve our system of tagging images

[PatAKnight]

What do you want to improve?

We have some interest coming in from other teams to use the images that we build for the backstage-showcase app. We should come up with a method for improving how we tag our images to ensure that we do not introduce a breaking change / error that could potentially be disruptive to the other teams.

What is the current behavior?

We create two images that are tagged with latest and the git id every time there is a push to main.

What is the new behavior?

A method of ensuring there is an image that we can guarantee will work for the other teams. A couple of ideas that come to mind are included below.

• Start a versioning system where we have major versions that we can guarantee will work and minor versions that could introduce an issue / error and tag accordingly
• Pull and re-tag the previous git id tagged images to something that will be identifiable to the other teams
• Keeping track of previous git id tags that we know work and updating teams when new ones arrive

:warning: Is this a breaking change?

Put an x in the boxes that apply

• [ ] Yes
• [x] No
• [ ] Don't know

[schultzp2020]

We should use changesets and then use the changeset when tagging images.