"Publishing Multi-Arch Docker Images to DockerHub Made Easy with Buildx and GitHub Actions"

In a significant development, developers can now create and publish multi-arch Docker images using Buildx and GitHub Actions. This shift in machine architecture towards ARM-based CPUs like Apple Silicon and Snapdragon X has made it essential for containerized applications to be compatible across different architectures.

The post explains how to leverage Buildx's functionality to build a Multi-Arch image, push it to DockerHub, and automate the process using a GitHub workflow/Actions. The step-by-step guide covers setting up GitHub Secrets with Docker username and Personal Access Token, creating a YAML file for the workflow, and configuring the workflow.

The post provides a detailed breakdown of the workflow configuration, highlighting the use of Ubuntu as a runner, logging into DockerHub with credentials, setting up Docker Buildx, building the image, and pushing it to DockerHub. The workflow can be triggered by releasing a new version or tag, allowing for automated image versioning.

Source: https://dev.to/pradumnasaraf/docker-buildx-gha-dockerhub-3h2c