Working with Docker environments amid diverse architectures, like Apple’s arm64 and x86-64/AMD64, presents challenges. I’ve encountered the clash between my Mac’s M1 arm64 architecture and my x86-centric server workloads. The solution? Just use DOCKER_DEFAULT_PLATFORM 1 2.
Just run in the terminal:
export DOCKER_DEFAULT_PLATFORM=linux/amd64
With this command, Docker enforces x86 architecture by default on commands supporting --platform parameter, streamlining workflows and sparing the need for repetitive --platform specifications.
For specific commands requiring alternate platforms, it’s fine to use it like:
docker run --rm -ti --platform linux/arm64 ubuntu:22.04 uname -a
docker run --rm -ti --platform linux/amd64 ubuntu:22.04 uname -a
But by setting DOCKER_DEFAULT_PLATFORM, working with Docker environments becomes intuitive, allowing me to focus on building and deploying instead of fighting with my hardware.
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Of course it’s slower than running on native platform (because of virtualization), but I prefer to wait a little bit longer over fixing silly bugs, which I wouldn’t have on proper architecture.