Helloku

This is a small flask application to practice using Heroku.

Quickstart

Build the local helloku docker image:
```
make build
```
Run the local helloku docker container:
```
PORT=9000
make run PORT=$PORT
```
- The local container will bind to the port specified by the PORT make variable. This gets passed into the container using the PORT environment variable. Most cloud container contracts leverage the PORT environment variable during deployment.
In a separate terminal, make a request to $PORT
```
PORT=9000
curl localhost:$PORT/
```

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