fix(python)!: respect $PORT variable instead of to always listen on 8000

Relate to #16

README.md

@@ -65,7 +65,7 @@ Generates the endpoints (or a whole app) from a mapping (SQL query -> URL)
    | JavaScript | <pre>$ npm install<br/>$ export DB_NAME=my-db DB_USER=my-user DB_PASSWORD=my-password<br/>$ npm start</pre> |
    | TypeScript | <pre>$ npm install<br/>$ npm run build<br/>$ export DB_NAME=my-db DB_USER=my-user DB_PASSWORD=my-password<br/>$ npm start</pre> |
    | Golang     | <pre>$ export DB_NAME=my-db DB_USER=my-user DB_PASSWORD=my-password<br/>$ go run *.go</pre>or<pre>$ go build -o app<br/>$ ./app</pre> |
-   | Python     | <pre>$ pip install -r requirements.txt<br/>$ export DB_NAME=my-db DB_USER=my-user DB_PASSWORD=my-password<br/>$ uvicorn app:app</pre> |
+   | Python     | <pre>$ pip install -r requirements.txt<br/>$ export DB_NAME=my-db DB_USER=my-user DB_PASSWORD=my-password<br/>$ uvicorn app:app --port 3000</pre> |
    
    ---
    :bulb: **NOTE**

docker/docker-compose.yaml

@@ -96,7 +96,7 @@ services:
       - DB_HOST=postgres # defaults to localhost
       - PORT=4040        # defaults to 3000
     ports:
-      - '4040:8000'
+      - '4040:4040'
     depends_on:
       postgres:
         condition: service_healthy

examples/python/fastapi/postgres/Dockerfile

@@ -3,4 +3,4 @@ WORKDIR /opt/app
 COPY requirements.txt ./
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 COPY *.py ./
-CMD [ "uvicorn", "app:app", "--host", "0.0.0.0" ]
+CMD [ "sh", "-c", "exec uvicorn app:app --host 0.0.0.0 --port ${PORT:-3000}" ]

src/templates/Dockerfile.py

@@ -3,4 +3,4 @@
 COPY requirements.txt ./
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 COPY *.py ./
-CMD [ "uvicorn", "app:app", "--host", "0.0.0.0" ]
+CMD [ "sh", "-c", "exec uvicorn app:app --host 0.0.0.0 --port ${PORT:-3000}" ]