Update actions workflow to support multi-architecture docker image builds #23

	env:
	IMAGE_NODE: chain-proxy
	REGISTRY_HOSTNAME: multiversx

	name: Build Docker image & push

	on:
	release:
	types: [published]
	pull_request:

	jobs:
	build-docker-image:
	strategy:
	matrix:
	runs-on: [ubuntu-latest]
	runs-on: ${{ matrix.runs-on }}

	steps:
	- name: Check out code into the Go module directory
	uses: actions/checkout@v4

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.REGISTRY_HOSTNAME }}/${{ env.IMAGE_NODE }}

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Log into Docker Hub
	if: github.event_name != 'pull_request'
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build and push image to Docker Hub
	id: push
	uses: docker/build-push-action@v5
	with:
	context: .
	file: ./docker/Dockerfile
	platforms: linux/amd64,linux/arm64
	push: ${{ github.event_name != 'pull_request' }}
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

Provide feedback