Set up github actions #24

	name: moma CD

	on:
	push:
	branches: [ "master" ]
	pull_request:
	branches: [ "master" ]

	env:
	# Use docker.io for Docker Hub if empty
	REGISTRY: ghcr.io
	# github.repository as <account>/<repo>
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build-dockers:
	name: Build docker images
	strategy:
	matrix:
	dockerfile: [dev, robot, demo]
	runs-on: ubuntu-latest
	steps:
	- name: Check out moma repo
	uses: actions/checkout@v3
	with:
	path: moma_ws/src/moma
	submodules: recursive
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2
	- name: Log into registry ${{ env.REGISTRY }}
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Extract Docker metadata
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	tags: type=raw,value=${{ matrix.dockerfile }}
	- name: Build and push docker
	uses: docker/build-push-action@v4
	with:
	context: ./moma_ws/src/moma/docker/
	file: ./moma_ws/src/moma/docker/${{ matrix.dockerfile }}.Dockerfile
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

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