Distributed System with Docker

This repo is a simple implementation of a geo-distributed system with flask, nginx, and docker. The system has the following architecture.

Installation

To run the system you need only docker installed

$ sudo apt install docker.io

Additionally put the following configuration in /etc/hosts. (This is for the fake dns)

# In /etc/hosts
10.100.0.2  dhaka.server.com
10.100.0.20 chittagong.server.com

Run the system

Server

First build the containers with

$ docker-compose build

Now run the servers with

$ docker-compose up

Server

The client is separate from the docker system. To run it, install python virtualenv and the python dependencies in the virutalenv.

$ virtualenv env
$ . env/bin/activate 
$ (env) pip install -r client/requirements.txt

Now run the client.

$ (env) python client/client.py

In the client, try alternating the following domains:

• dhaka.server.com
• chittagong.server.com