feat: use pydantic settings to load environment variables #34

	name: Create Docker Images for MQTT-Gateway

	on:
	push:
	branches:
	- main
	release:
	types:
	- created

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	include:
	- dockerfile: ./frontend/Dockerfile
	image: frontend
	context: ./frontend
	- dockerfile: ./backend/gateway/Dockerfile
	image: gateway
	context: ./backend/gateway
	- dockerfile: ./backend/api/Dockerfile
	image: api
	context: ./backend/api
	permissions:
	contents: read
	packages: write
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Log in to the Container registry
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/${{ matrix.image }}

	- name: Build and push Docker image
	uses: docker/build-push-action@v3
	with:
	context: ${{ matrix.context }}
	file: ${{ matrix.Dockerfile }}
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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