[Deploy] Add heroku.yml file #73

	# Your workflow name.
	name: Deploy to heroku.

	# Run workflow on every push to master branch.
	on:
	push:
	branches: [main]

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

	- name: Setup Node.js environment to run migrations
	uses: actions/setup-node@v3
	with:
	node-version: '18.x'

	- name: Install dependencies and run migrations
	working-directory: backend/
	env:
	DATABASE_URL: ${{ secrets.DATABASE_URL }}
	run: \|
	yarn install
	npx prisma migrate deploy

	- name: Build, Push and Release a Docker container to Heroku.
	env:
	ENV_FILE: ${{ secrets.ENV_FILE }}
	uses: gonuit/heroku-docker-deploy@v1.3.3
	with:
	email: ${{ secrets.HEROKU_EMAIL }}

	heroku_api_key: ${{ secrets.HEROKU_API_KEY }}

	heroku_app_name: ${{ secrets.HEROKU_APP_NAME }}

	dockerfile_directory: backend/

	dockerfile_name: Dockerfile.deploy

	docker_options: "--platform linux/amd64 --env-file <(echo '$ENV_FILE')"

	process_type: web

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