Update Containerfile to use multi-stage build to reduce size #748

	name: Unittests

	on:
	pull_request:

	push:
	branches:
	- main
	- release_*

	jobs:
	test:
	name: Python ${{ matrix.python-version }} tests
	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.8", "3.9"]

	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip setuptools tox

	- name: Run unittests on python${{ matrix.python-version }}
	run: python -m tox -e test

	- name: Upload pytest html report
	uses: actions/upload-artifact@v2
	if: failure()
	with:
	path: __pytest_reports/charon-unit-tests.html
	name: charon-unit-tests_python${{ matrix.os.python }}.html


	- name: Run coveralls-python
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	COVERALLS_FLAG_NAME: python${{ matrix.python-version }}
	COVERALLS_PARALLEL: true
	run: \|
	python -m pip install --upgrade coveralls
	python -m coveralls --service=github

	coveralls-finish:
	name: Finish coveralls-python
	needs: test
	runs-on: ubuntu-latest
	steps:
	- name: Finished
	run: \|
	pip3 install --upgrade pip setuptools coveralls
	/home/runner/.local/bin/coveralls --finish --service=github
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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