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Support publishing extra semver Docker tags #297

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Support publishing extra semver Docker tags #297

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merusso
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@merusso merusso commented Sep 7, 2023

resolves #296

This change adds semver-style Docker tags {{major}} and {{major.minor}} for each release.

For example, when publishing release v3.2.1, this will push tags: 3.2.1, 3.2, 3, latest

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Support publishing extra semver Docker tags
822c7e4 
resolves stefanprodan#296

This change adds semver-style Docker tags {{major}} and {{major.minor}}
for each release.

For example, when publishing release v3.2.1, this will push tags: 3.2.1, 3.2, 3, latest
@merusso
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merusso commented Sep 7, 2023 •
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I tested out the workflow here and it seems to work as desired: https://github.com/merusso/podinfo/actions/runs/6112999327/job/16591588138

I pushed Git tag "3.2.1", and it produced the following Docker tags:

  docker.io/stefanprodan/podinfo:3.2.1
  docker.io/stefanprodan/podinfo:3.2
  docker.io/stefanprodan/podinfo:3
  docker.io/stefanprodan/podinfo:latest
  ghcr.io/stefanprodan/podinfo:3.2.1
  ghcr.io/stefanprodan/podinfo:3.2
  ghcr.io/stefanprodan/podinfo:3
  ghcr.io/stefanprodan/podinfo:latest

I got the same result when pushing Git tag "v3.2.1"

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stefanprodan commented Sep 23, 2023 •
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I think mutable tags are bad practice. Especially for Kubernetes where you should be using immutable tags so that on autoscaling, the replica set will not end up with diffrent versions.

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merusso commented Sep 24, 2023 •
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For a traditional Kubernetes deployment, immutable image tags are ideal, I agree.

In other contexts, would you agree that mutable image tags are acceptable? For instance, this project already uses mutable Docker tags in its base images. It also currently pushes mutable tag latest, which is more problematic than MAJOR or MAJOR.MINOR tags in my opinion.

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Publish MAJOR and MAJOR.MINOR tags for Docker images
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@merusso @stefanprodan