add build arg and build context args #152

	name: build

	on:
	push:
	branches:
	- master
	- upstream
	pull_request:
	branches:
	- upstream
	- master

	jobs:

	build:
	runs-on: ubuntu-latest
	steps:
	- name: Check out code
	uses: actions/checkout@v1
	- name: Set up Python 3.x
	uses: actions/setup-python@v1
	with:
	python-version: 3.x
	- name: Install dependencies
	run: \|
	pip install --user strato-skipper
	mkdir -p ~/.docker
	echo "{}" > ~/.docker/config.json
	touch ${HOME}/.gitconfig
	echo "$HOME/.local/bin" >> $GITHUB_PATH
	- name: test
	run: \|
	skipper make all

	test-user-install:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [ '3.x']
	steps:
	- name: Check out code
	uses: actions/checkout@v1
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Test install
	run: \|
	mkdir -p ~/.docker
	echo "{}" > ~/.docker/config.json
	pip install --user .
	echo "$HOME/.local/bin" >> $GITHUB_PATH
	- name: Test usage
	run: \|
	skipper make clean

	test-root-install:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [ '3.x']
	steps:
	- name: Check out code
	uses: actions/checkout@v1
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Test install
	run: \|
	mkdir -p ~/.docker
	echo "{}" > ~/.docker/config.json
	sudo pip install .
	echo "$HOME/.local/bin" >> $GITHUB_PATH
	- name: Test usage
	run: \|
	sudo skipper make clean

Provide feedback