add docker publish workflow #1

	name: Docker Publish

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.

	on:
	push:
	branches-ignore:
	- **
Check failure on line 11 in .github/workflows/docker-publish.yml View workflow run for this annotation GitHub Actions / .github/workflows/docker-publish.yml Invalid workflow file `You have an error in your yaml syntax on line 11`

	jobs:
	build:

	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: goclearsky/rails

	- name: Login to Docker Hub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build and push
	id: docker_build
	uses: docker/build-push-action@v4
	with:
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }},goclearsky/rails:latest
	labels: ${{ steps.meta.outputs.labels }}

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