add building Docker images to CI #2

	name: Go Scenario Test (with proxy)

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	jobs:
	test:
	name: Tests
	runs-on: ubuntu-latest
	steps:
	- name: Set up Go ^1.17
	uses: actions/setup-go@v2
	with:
	go-version: ^1.17

	- name: Install crypto util from Dela
	run: \|
	git clone https://github.com/dedis/dela.git
	cd dela
	go install ./cli/crypto

	- name: Check out code into the Go module directory
	uses: actions/checkout@v2

	- name: Create a private key
	run: crypto bls signer new --save private.key

	- name: Install dvoting
	run: make build

	- name: Start and setup 5 nodes
	run: ./runSystems.sh -n 5 --docker false --backend false --frontend false --attach false

	- name: Run the scenario Test
	run: go test -timeout 7m -run TestScenario ./integration/...

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