add multi-arch dockerfile and remove mips64le architecture #676

	name: build flannel

	on: [push, pull_request]

	env:
	GO_VERSION: "1.20"
	LINUX_ARCHES: "amd64 arm arm64 s390x ppc64le mips64le riscv64"
	REPOSITORY: flannel/flannel

	jobs:
	build-images:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: set tag
	run: echo "GIT_TAG=$(git describe --tags --always)" >> $GITHUB_ENV

	- name: Set up Go 1.x
	uses: actions/setup-go@v4
	with:
	go-version: ${{ env.GO_VERSION }}

	- name: go mod vendor
	run: go mod vendor

	- name: build linux
	run: \|
	set -e
	for arch in ${LINUX_ARCHES}; do
	echo "Building for arch $arch"
	ARCH=$arch make dist/flanneld-$arch
	file dist/flanneld-$arch
	done

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- name: Docker meta
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: ${{ env.REPOSITORY }}
	flavor: latest=false
	tags: \|
	type=ref, event=branch

	- name: Build and push Docker image
	# if: github.repository_owner == 'flannel-io' && success()
	uses: docker/build-push-action@v5
	with:
	context: .
	file: images/Dockerfile
	push: false
	platforms: linux/amd64,linux/arm64,linux/arm,linux/s390x,linux/ppc64le,linux/riscv64
	tags: ${{ steps.meta.outputs.tags }}
	build-args: TAG=${{ env.GIT_TAG }}

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