Various updates and fixes #120

	name: publish

	on:
	push:
	# Trigger CI on all branch pushes but...
	branches:
	- "**"
	# don't double trigger on new tag push when creating release. Should only
	# trigger once for the release.
	tags-ignore:
	- "..*"
	pull_request:
	release:
	types: [created]

	jobs:
	publish-to-ghcr:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	fetch-depth: 1

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

	- name: Login to registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login ghcr.io -u ${{ github.actor }} --password-stdin

	- name: Cache Docker layers
	uses: actions/cache@v2
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-single-buildx-${{ github.sha }}
	restore-keys: \|
	${{ runner.os }}-single-buildx

	- name: Docker meta
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: ghcr.io/${{ github.repository_owner }}/tezos-faucet
	tags: \|
	type=ref,event=branch
	type=ref,event=pr
	type=match,pattern=([0-9]+\.[0-9]+\.[0-9]+),group=1

	- name: Push container to GHCR
	uses: docker/build-push-action@v4
	with:
	builder: ${{ steps.buildx.outputs.name }}
	cache-from: type=local,src=/tmp/.buildx-cache
	cache-to: type=local,dest=/tmp/.buildx-cache-new
	context: .
	file: Dockerfile
	labels: ${{ steps.meta.outputs.labels }}
	push: true
	tags: ${{ steps.meta.outputs.tags }}

	# Temp fix
	# https://github.com/docker/build-push-action/issues/252
	# https://github.com/moby/buildkit/issues/1896
	- name: Move cache
	run: \|
	rm -rf /tmp/.buildx-cache
	mv /tmp/.buildx-cache-new /tmp/.buildx-cache

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