🚘 Reverse-proxy / LB using GO

Demo Project This project is for learning purposes only.

[WIP] Project is still in the work in progress phase.

goinreverse is a simple and configurable reverse-proxy and load balancer built with go.

Configuration

Configure the proxy easily to suit your needs through the config.yaml file:

healthcheck: 5 # in seconds
servers:
  - name: andromeda
    url: http://localhost:8081/
  - name: milkyway
    url: http://localhost:8082/

Configure the .env file.

mv .exmple.env .env

I suggets you prefix each environment variable with export so that it can be easily populated in the environment with source .env we will be using this command throught the project.

Testing the proxy

Unit tests:

Unit tests are available for the heartbeat package which does the server ping and the main package. Running the unit tests can be achieved using:

• go test ./...

End-toEnd test:

The end to end test is rather primitive due to time constraints. However it is really effective to see the loadballancer in action.

Running the test

Prerequisites

• Docker

Flow

• cd test/e2e
• docker-compose up --build
• cd ../..
• source .env
• go run main.go
• Notice in the console both servers are getting pinged
• docker down {container_id}
• Notice that the traffic gets redirected to the other server

🤩 Congrats you are done!

Dependencies

1. gopkg.in/yaml.v2 - used for parsing configuration file.