This GitHub Actions workflow builds a Docker image, tags it, and pushes it to one of three container registries. Here’s a Gist with the boilerplate code.

Building Docker Images and Pushing to a Container Registry

If you haven’t yet integrated GitHub Actions with your private container registry, this tutorial is a good place to start. The resulting workflow will log in to your private registry using the provided credentials, build existing Docker images by path, and push the resulting images to a container registry. We’ll discuss how to do this for GHCR, Docker Hub, and Harbor.

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