added docker: #296

	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: cti-python-stix2 test harness
	on: [push, pull_request]

	jobs:
	# Label of the container job
	container-job:
	# Containers must run in Linux based operating systems
	runs-on: ubuntu-latest
	# Docker Hub image that `container-job` executes in
	container: node:10.18-jessie

	# Service containers to run with `container-job`
	services:
	# Label used to access the service container
	postgres:
	# Docker Hub image
	image: postgres
	# Provide the password for postgres
	env:
	POSTGRES_PASSWORD: postgres
	# Set health checks to wait until postgres has started
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	ports:
	# Maps tcp port 5432 on service container to the host
	- 5432:5432
	strategy:
	matrix:
	python-version: [3.8, 3.9, '3.10', '3.11', '3.12']

	name: Python ${{ matrix.python-version }} Build
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install and update essential dependencies
	run: \|
	pip install -U pip setuptools
	pip install tox-gh-actions
	pip install codecov
	- name: Connect to PostgreSQL
	uses: docker:postgres
	- name: Test with Tox
	run: \|
	tox
	- name: Upload coverage information to Codecov
	uses: codecov/codecov-action@v1
	with:
	fail_ci_if_error: true # optional (default = false)
	verbose: true # optional (default = false)

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