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Example Voting App

Getting started

Download Docker. If you are on Mac or Windows, Docker Compose will be automatically installed. On Linux, make sure you have the latest version of Compose.

Run in this directory:

docker-compose up
```
The app will be running at [http://localhost:5000](http://localhost:5000), and the results will be at [http://localhost:5001](http://localhost:5001).

Alternately, if you want to run it on a [Docker Swarm](https://docs.docker.com/engine/swarm/), first make sure you have a swarm. If you don't, run:
```
docker swarm init
```
Once you have your swarm, in this directory run:
```
docker stack deploy --compose-file docker-stack.yml vote
```

Architecture
-------

![Architecture diagram](architecture.png)

* A Python webapp which lets you vote between two options
* A Redis queue which collects new votes
* A .NET worker which consumes votes and stores them in…
* A Postgres database backed by a Docker volume
* A Node.js webapp which shows the results of the voting in real time


Note
----

The voting application only accepts one vote per client. It does not register votes if a vote has already been submitted from a client.

Docker Run Commands
----

docker run -d --name=redis redis

docker run -d --name=vote -p 5000:80 --link redis:redis voting-app

docker run -d --name=db -e POSTGRES_HOST_AUTH_METHOD=trust postgres:9.4

docker run -d --name=result -p 5001:80 --link redis:redis --link db:db result-app

docker run -d --name=worker --link redis:redis --link db:db worker-app