Add docker compose file with PostgreSQL included

README.md

@@ -14,6 +14,15 @@ docker run -it --env DBPASS="<PASSWORD>" --env DBHOST="<SERVER_HOST_NAME>" --env
 ```
 The app can be reached in your browser at `http://127.0.0.1:5000`.
 
+## Docker compose with PostgreSQL
+
+You also can use the docker compose file to spin up the Python Flask application and a PostgreSQL docker container. The database connection information will be passed automatically within the docker compose file.
+
+```
+docker-compose build
+docker-compose up
+```
+
 # Contributing
 
 This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [[email protected]](mailto:[email protected]) with any additional questions or comments.

docker-compose.yml

@@ -0,0 +1,18 @@
+version: '3'
+services:
+  flask-sample:
+    build: .
+    depends_on:
+      - db
+    ports:
+     - "5000:5000"
+    environment:
+     - DBUSER=postgres
+     - DBPASS=changeme
+     - DBHOST=db
+     - DBNAME=postgres
+  db:
+    image: postgres:10
+    restart: always
+    environment:
+      POSTGRES_PASSWORD: changeme