Merge pull request #459 from henrikclh/henrikclh-patch-1 #27

	# docker-image.yml
	name: Publish Docker image

	on:
	push:
	branches: # master分支有push时触发此workflow
	- 'master'
	tags: # tag更新时触发此workflow
	- '*'

	jobs:

	push_to_registry:
	name: Push Docker image to Docker Hub
	runs-on: ubuntu-latest

	steps:
	- name: Check out the repo
	uses: actions/checkout@v2

	- name: Log in to Docker Hub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }} # 配置dockerhub的认证，在Github项目主页【Settings】 -> 【Secrets】添加对应变量
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- uses: jungwinter/split@v2
	id: split
	with:
	msg: ${{ github.repository }}
	separator: "/"

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v3
	with:
	images: ${{ secrets.DOCKERHUB_USERNAME }}/${{ steps.split.outputs._1 }} #dockerhub用户名/仓库名

	- name: Build and push Docker image
	uses: docker/build-push-action@v2
	with:
	file: Dockerfile
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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