Update main.py to get environment variable #3

	name: Docker Build

	on:
	push:
	branches: [main]

	### Ensures that only one CI task per branch/environment will run at a time ###
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	permissions:
	contents: read

	jobs:
	docker-build:
	name: Docker Build
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3

	- name: Log in to Docker Hub
	uses: docker/login-action@465a07811f14bebb1938fbed4728c6a1ff8901fc # v2.2.0
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}

	- name: Build and push docker image
	shell: bash
	env:
	REGISTRY: dungpham91
	REPOSITORY: lint-json-inside-yaml
	run: \|
	TAG_VERSION=$(cat VERSION)

	docker build \
	-t $REGISTRY/$REPOSITORY:${TAG_VERSION} \
	-t $REGISTRY/$REPOSITORY:latest \
	-f Dockerfile .

	echo "Pushing image to repository..."
	docker push $REGISTRY/$REPOSITORY --all-tags

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