attempt to cache virtual environment to share between CI jobs #527

	name: Build and push Docker image

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	docker:
	name: Docker image
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	steps:
	- name: Check out code
	uses: actions/checkout@v3
	with:
	submodules: recursive
	token: ${{secrets.GITHUB_TOKEN}}
	- name: Log in to the Container registry
	uses: docker/[email protected]
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/[email protected]
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	tags: \|
	# Add a version tag when a valid semver tag is pushed.
	type=semver,pattern={{version}}
	# Add the edge tag to every image to represent the latest commit to main
	type=edge,branch=main
	- name: Build and push Docker image
	uses: docker/[email protected]
	with:
	context: .
	push: true
	file: ./Dockerfile
	tags: \|
	${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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