[SENTINEL] added pr build #1

	name: Build Docker Image on PR to ref main branch

	on:
	pull_request:
	branches:
	- 'master'

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout out the repo
	uses: actions/checkout@v2

	- name: Log into the Container registry
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKER_HUB_USERNAME }}
	password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}

	- name: Set Docker tag as short commit sha
	id: tag
	run: echo "::set-output name=TAG::$(echo $GITHUB_SHA \| head -c 8)"

	- name: Build and push the Docker image
	uses: docker/build-push-action@v4
	with:
	context: .
	push: true
	tags: ${{ secrets.DOCKER_HUB_USERNAME }}/${{ secrets.DOCKER_HUB_REPO }}:${{ steps.tag.outputs.TAG }}

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