wip: some testing for faster docker build and releases #52

	name: Docker build and push
	on:
	push:
	tags:
	- "v*"
	branches:
	- "release/*"

	jobs:
	cache:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Cache Docker layers
	uses: actions/cache@v2
	with:
	path: \|
	/tmp/.buildx-cache
	key: ${{ runner.os }}-docker-${{ hashFiles('**/Dockerfile') }}

	docker:
	needs: cache
	runs-on: ubuntu-latest
	environment: ci
	permissions:
	contents: write
	packages: write
	id-token: write
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

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

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

	- name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	username: ${{ vars.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Login to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Docker meta (GHCR)
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: \|
	ghcr.io/donkeyx/cluster-utils
	docker.io/donkeyx/cluster-utils
	tags: \|
	type=semver,pattern={{version}}
	type=semver,pattern={{major}}
	type=semver,pattern={{major}}.{{minor}}

	- name: Build and push
	uses: docker/build-push-action@v5
	with:
	context: .
	platforms: linux/amd64,linux/arm64
	push: ${{ github.event_name != 'pull_request' }}
	tags: ${{ steps.meta.outputs.tags }}
	build-args: VERSION=${{ env.VERSION }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=local,src=/tmp/.buildx-cache
	cache-to: type=local,dest=/tmp/.buildx-cache

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