Example multi-arch Dockerfile for Go projects

Dockerfile

FROM --platform=${BUILDPLATFORM:-linux/amd64} golang:1.16 as builder

ARG TARGETPLATFORM
ARG BUILDPLATFORM
ARG TARGETOS
ARG TARGETARCH

WORKDIR /app/
ADD . .
RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -ldflags="-w -s" -o yourapplication main.go

FROM --platform=${TARGETPLATFORM:-linux/amd64} scratch
WORKDIR /app/
COPY --from=builder /app/yourapplication /app/yourapplication
ENTRYPOINT ["/app/yourapplication"]

Makefile

.DEFAULT_GOAL := default

IMAGE ?= yourapplication:latest

export DOCKER_CLI_EXPERIMENTAL=enabled

.PHONY: build # Build the container image
build:
	@docker buildx create --use --name=crossplat --node=crossplat && \
	docker buildx build \
		--output "type=docker,push=false" \
		--tag $(IMAGE) \
		.

.PHONY: publish # Push the image to the remote registry
publish:
	@docker buildx create --use --name=crossplat --node=crossplat && \
	docker buildx build \
		--platform linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le,linux/s390x \
		--output "type=image,push=true" \
		--tag $(IMAGE) \
		.

Thanks @AverageMarcus for clarifying it