Add renovate github action #9

	name: docker-build

	on:
	push:
	tags:
	- "[0-9]+\\.[0-9]+\\.[0-9]+"
	branches:
	- master
	pull_request:
	branches:
	- master
	release:
	types:
	- published

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

	jobs:
	docker-build:
	name: Build and push container images
	runs-on: ubuntu-latest
	steps:
	- name: Check out repo
	uses: actions/checkout@v2
	- name: Export git tag
	uses: tenhaus/get-release-or-tag@v2
	id: tag
	- name: Docker meta
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	tags: \|
	# default branch event
	type=edge,branch=${{ github.event.repository.default_branch }},priority=700
	type=sha,format=long,branch=${{ github.event.repository.default_branch }},priority=100
	# tag event
	type=semver,pattern={{version}},event=tag,priority=900
	type=semver,pattern={{major}},event=tag,priority=850
	type=semver,pattern={{major}}.{{minor}},event=tag,priority=800
	type=sha,format=long,event=tag,priority=100
	# pr event
	type=ref,event=pr,priority=600

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v1
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v1
	- name: Login to ghcr.io
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Build image
	uses: docker/build-push-action@v2
	with:
	platforms: linux/amd64,linux/arm64
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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