The purpose of this repository is to show how to build a multi-arch Docker image from the command-line for amd64
and arm64 architectures. The Go application built inside the Docker image displays the OS, Architecture and Go version
of the runtime environment.
The buildx plugin allows to build and
push multi-platform images from the command-line. The following command will create and use
a buildx builder instance:
$ docker buildx create --name multi-arch --use Build and push the multi-arch Docker image with:
$ docker buildx build --platform=linux/amd64,linux/arm64 -t <repository_name>/go-docker-multi-arch --push .Using both images on Apple Silicon will output the following:
$ docker run --rm <repository_name>/go-docker-multi-arch
OS/Arch: linux/arm64
Go version: go1.17.11
$ docker run --platform linux/amd64 --rm <repository_name>/go-docker-multi-arch
OS/Arch: linux/amd64
Go version: go1.17.11