Add github action to build and publish Docker image #2

	name: Build and Publish Docker Image

	on:
	push:
	branches:
	- '*'
	paths:
	- 'snitch/docker/Dockerfile'
	pull_request:

	jobs:
	build-and-publish:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout Repository
	uses: actions/checkout@v2

	- name: Set up Docker Buildx
	id: docker-buildx
	uses: docker/setup-buildx-action@v1

	- name: Login to GitHub Container Registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login ghcr.io -u ${{ github.actor }} --password-stdin

	- name: Build and Push Docker Image
	run: \|
	docker buildx -t ghcr.io/${{ github.repository_owner }}/${{ github.repository_name }}:${{ github.sha }} -f snitch/docker/Dockerfile .
	docker push ghcr.io/${{ github.repository_owner }}/${{ github.repository_name }}:${{ github.sha }}
	if [ "${{ github.ref }}" = "refs/heads/main" ]; then
	docker buildx imagetools create ghcr.io/${{ github.repository_owner }}/${{ github.repository_name }}:${{ github.sha }} --tag ghcr.io/${{ github.repository_owner }}/${{ github.repository_name }}:latest
	docker push ghcr.io/${{ github.repository_owner }}/${{ github.repository_name }}:latest
	else
	echo "Not on the main branch, skipping push to latest tag."
	fi

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