ci: automatic build fixes #19

	name: Docker Build and Push to DockerHub
	env:
	DOCKER_CLI_EXPERIMENTAL: enabled

	on:
	push:
	branches:
	- master

	jobs:
	build:
	runs-on: ubuntu-20.04
	name: Build and push sphinx-nav-fiber image
	env:
	ACTIONS_ALLOW_UNSECURE_COMMANDS: true
	steps:
	- name: Check out from Git
	uses: actions/checkout@v2
	- name: Login to Docker Hub
	run: echo "${{ secrets.DOCKER_PASSWORD }}" \| docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
	- name: Checkout project
	uses: actions/checkout@v2
	- name: Setup Docker buildx action
	uses: crazy-max/ghaction-docker-buildx@v1
	id: buildx
	with:
	buildx-version: latest
	qemu-version: latest
	- name: Show available buildx platforms
	run: echo ${{ steps.buildx.outputs.platforms }}
	- name: Cache Docker layers
	uses: actions/cache@v2
	id: cache
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-buildx-${{ github.sha }}
	restore-keys: \|
	${{ runner.os }}-buildx-
	- name: Run Docker buildx
	run: \|
	docker buildx build \
	--cache-to "type=local,dest=/tmp/.buildx-cache" \
	--platform linux/amd64 \
	--tag "${{ secrets.DOCKER_HUB_USER }}/sphinx-nav-fiber:master" \
	--output "type=registry" ./

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