Created docker-compose.yml file

docker-compose.yml

+version: '3'
+
+services:
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    environment:
+      - database_url=postgres://postgres:postgres@postgres/postgres
+    ports:
+      - "5432:5432"
+    volumes:
+      - .:/app
+    command: bash -c "python src/main.py"
+    depends_on:
+      - postgres
+
+  postgres:
+    image: postgres:12-alpine
+    environment:
+      - POSTGRES_PASSWORD=postgres
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