Rename mysql_host to mariadb_host so it is the same for all apps and #408

	# Github action to run Molecule for "mongo"

	name: mongo
	on:
	push:
	paths:
	- 'roles/mongo/**'
	- 'molecule/mongo/**'
	- '.github/workflows/molecule-mongo.yml'
	pull_request:
	paths:
	- 'roles/mongo/**'
	- 'molecule/mongo/**'
	- '.github/workflows/molecule-mongo.yml'

	jobs:
	build:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v2

	- name: Set up Python 3.8
	uses: actions/setup-python@v2
	with:
	python-version: 3.8

	- name: Installing dependencies
	run: pip install jinja2 ansible molecule molecule-docker pytest-testinfra pytest setuptools

	- name: Run role tests
	run: molecule test -s mongo

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