Instant Messaging app

WebSocket chat application backend built with HAProxy, Erlang, Python, Redis and MongoDB.

Development mode:

• Requirements:

  • Docker and Docker-Compose
  • Erlang/OTP 23
  • Rebar3 built tool
  • JMeter for tests

• Instructions:

  • Docker init

    cd /rest_server
    docker build image -t rest .
    docker-compose up
  

  • Insert test users using mongo shell

    load("/mongo_config/mongo_init.js");
  

  • Start one WebSocket server node

    cd ../websocket_server
    rebar3 shell --name node1@127.0.0.1
  

  • Start tests from JMeter GUI or command-line

Deployment mode:

• Requirements:

  • Docker
  • JMeter for tests

• Instructions:

  • Update hostname configs for redis and mongo managers in /websocket_server/apps
  • Rebuild docker images

    docker image build -t ws . // in /websocket_server
    docker image build -t rest . // in /rest_server
  

  • Update JMeter samplers ports to {IP_ADDRESS}:80
  • Initialize docker swarm and start containters

    docker swarm init --advertise-addr {IP_ADDRESS}
    docker stack deploy --compose-file docker-stack.yml im
  

  • Insert test data using mongo shell

    load("/mongo_config/mongo_init.js");
  

  • Start tests from JMeter GUI or command-line tool