Create and publish a Docker image #23

	---
	name: Create and publish a Docker image

	on:
	push:
	branches:
	- master
	pull_request:
	schedule:
	- cron: '45 18 * * 3'

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	docker:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Build and export Docker image
	uses: docker/build-push-action@v5
	with:
	context: .
	tags: ros-infrastructure/prerelease_website:test
	cache-from: type=gha
	cache-to: type=gha,mode=max
	- name: Log in to the Container registry
	if: contains(fromJSON('["push", "schedule"]'), github.event_name)
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Extract metadata (tags, labels) for Docker
	if: contains(fromJSON('["push", "schedule"]'), github.event_name)
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	tags: \|
	type=ref,event=branch
	type=schedule,${{ github.ref_name }}
	- name: Build and push Docker image
	if: contains(fromJSON('["push", "schedule"]'), github.event_name)
	uses: docker/build-push-action@v5
	with:
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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