adding package caching to maybe decrease build times for multiplatforms #12

	name: Create and publish a Docker image

	on:
	push:
	branches: ['release', 'multiplatform_again']
	tags:
	- '*'

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3

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

	- name: Login to Container Registry
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Docker meta
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: inject go-build-cache into docker
	uses: reproducible-containers/buildkit-cache-dance@v2.1.2
	with:
	cache-source: go-build-cache

	- name: Build and push Docker image
	uses: docker/build-push-action@v5
	with:
	context: .
	cache-from: type=gha
	cache-to: type=gha,mode=max
	platforms: linux/amd64,linux/arm64
	file: docker/Dockerfile.publish
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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