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The Frying Dutchman

http://www.hulu.com/watch/23445

Setup

To run the programs in these challenges, you'll need working versions of Python, Ruby, Rails, SQLite, and RabbitMQ. These things are all installed in the Vagrant image at the root of this repo to get an environment set up hassle-free. The setup instructions below assume you will be using this Vagrant environment.

  1. Install Vagrant.
  2. Clone this repository.
  3. From the root of this repository, run vagrant up (this may take a while to download and configure all of the dependencies).

The Programs

The Frying Dutchman

This program is a Rails application that renders a single web page representing The Frying Dutchman restaurant from the best Simpsons episode ever. The Frying Dutchman is an all-you-can eat fried seafood restaurant, and this web page displays how many shrimp are in the stock room, and how many shrimp are out in the buffet. The page must be reloaded to see any changes in these counts.

To start this program, follow these steps:

  1. Open an SSH session to the Vagrant environment with vagrant ssh. This should automatically place you in the /vagrant directory on the VM, which is sync'd with the root directory of your local clone of this repository.

  2. In this ssh session, execute these commands to start the Frying Dutchman program:

     cd the_frying_dutchman
 make start

  3. The application can be accessed on your local machine at http://localhost:3001.

The number of shrimp in the stock room is kept in a SQLite database (/vagrant/the_frying_dutchman/db/development.sqlite3), in the shrimp_deliveries table. This database also keeps track of one delivery person, named Pat, in the delivery_people table.

The buffet is represented by the buffet queue in the RabbitMQ instance running in the Vagrant VM. A web monitoring interface for this instance is accessible on your local machine at http://localhost:15673. You can log in with login: guest and password: guest.

Homer

Yaar! Twas a moonless night, dark as pitch, when out of the mist came a beast more stomach than man.

Homer is a simple python application that endlessly consumes shrimp from the buffet. To start him going:

  1. Open another SSH session with vagrant ssh.

  2. In this session, start the Homer program with these commands:

     cd homer
 make start

Notice that he says Woohoo! every time he consumes a message from the buffet queue.

The Challenges