Merge pull request #8 from eds-book-gallery/postprint #30

	name: Build and push container image

	on:
	push:
	branches:
	- main
	- postprint

	jobs:
	build-and-push:
	runs-on: ubuntu-latest
	if: github.repository_owner == 'eds-book-gallery'
	steps:
	# For biggish images, github actions runs out of disk space.
	# So we cleanup some unwanted things in the disk image, and reclaim that space for our docker use
	# https://github.com/actions/virtual-environments/issues/2606#issuecomment-772683150
	# and https://github.com/easimon/maximize-build-space/blob/b4d02c14493a9653fe7af06cc89ca5298071c66e/action.yml#L104
	# This gives us a total of about 52G of free space, which should be enough for now
	- name: cleanup disk space
	run: \|
	sudo rm -rf /usr/local/lib/android /usr/share/dotnet /opt/ghc
	df -h

	- name: Checkout files in repo
	uses: actions/checkout@main

	# Set quay image
	- name: Get properties from the config file
	id: config_quay
	uses: notiz-dev/github-action-json-property@release
	with:
	path: '.github/config.json'
	prop_path: 'quay_image'

	- name: Build and push the image to quay.io
	uses: jupyterhub/repo2docker-action@master
	with:
	# Make sure username & password/token pair matches your registry credentials
	DOCKER_USERNAME: ${{ secrets.QUAY_USERNAME }}
	DOCKER_PASSWORD: ${{ secrets.QUAY_PASSWORD }}
	DOCKER_REGISTRY: "quay.io"

	# Uncomment and modify the following line with your image name, otherwise no push will happen
	IMAGE_NAME: ${{steps.config_quay.outputs.prop}}

	# Lets us monitor disks getting full as images get bigger over time
	- name: Show how much disk space is left
	run: df -h

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