Build and share Docker images using AWS CodeBuild
Introduction
Build Docker images using AWS CodeBuild
Run Docker Hub and Amazon ECR images with AWS CodeBuild
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These FAQs were drafted with an approved AI-assisted workflow and reviewed by Arm contributors before publication. Human technical review remains part of the process so the final page reflects engineering rigor, accuracy, and Arm editorial standards.

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How do I confirm I’m on an Arm AArch64 machine before running the images?
Run uname -m on the target Linux system. The expected output is aarch64. If you see a different value, you’re not on a 64-bit Arm machine.
How do I know the CodeBuild job is finished and images are ready to use?
When the CodeBuild project completes successfully, you can pull the images from Docker Hub or Amazon ECR Public Gallery and run them on an Arm machine with Docker.
Which registry should I pull from?
Both registries provide the same images. Choose Docker Hub or Amazon ECR Public Gallery based on which registry fits your environment.
What result should I expect when I run the container to verify the build?
Running uname -m inside the container should return aarch64, and the output should match regardless of which registry you used. The example also shows that CodeBuild built the image on Amazon Linux 2.
Do I need to select an Arm or Graviton environment in CodeBuild to target AArch64?
Yes. Select an Arm-based environment in CodeBuild to build AArch64 Docker images from a GitHub-hosted project.

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