Remove mutability from the language #552

	name: docker-build-and-push

	on:
	push:
	branches:
	- 'master'
	pull_request:
	branches:
	- 'master'
	release:
	types:
	- published

	jobs:
	docker:
	runs-on: ubuntu-latest
	steps:

	- name: Checkout
	uses: actions/checkout@v2.3.4

	- name: Get the tag version
	id: tag
	run: echo ::set-output name=tag::${GITHUB_REF#refs/tags/}

	# we need qemu and buildx so we can build multiple platforms later
	- name: Set up QEMU
	id: qemu
	uses: docker/setup-qemu-action@v1.2.0

	# BuildKit (used with `docker buildx`) is the best way to build images
	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v1

	# This makes image builds fast!
	- name: Cache Docker layers
	uses: actions/cache@v2.1.6
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-buildx-${{ github.sha }}
	restore-keys: \|
	${{ runner.os }}-buildx-

	- name: Login to DockerHub
	if: github.event_name != 'pull_request'
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKER_HUB_USERNAME }}
	password: ${{ secrets.DOCKER_HUB_TOKEN }}

	- name: Build and push specific release
	if: github.event_name == 'release'
	uses: docker/build-push-action@v2
	with:
	context: .
	push: true
	tags: jinko/jinko:${{steps.tag.outputs.tag}}

	- name: Build and push latest release
	if: github.event_name == 'release'
	uses: docker/build-push-action@v2
	with:
	context: .
	push: true
	tags: jinko/jinko:latest

	- name: Build and push bleeding edge release
	if: github.event_name == 'push'
	uses: docker/build-push-action@v2
	with:
	context: .
	push: true
	tags: jinko/jinko:bleeding

Provide feedback