Go Load Balancer

The purpose of this application is to create a load balancer which routes requests to two business servers. The logic is simple: Pass in some string and it will return the reversed string. If no server responds within 30 seconds, a failure response is given. The request will also need to be properly formatted. So feel free to mess around with the request structure.

Make requests to the server from any computer

curl --header "Content-Type: application/json" --request POST --data '{ "data": "some string" }' http://ec2-35-183-71-175.ca-central-1.compute.amazonaws.com:8000

{"data":"gnirts emos"}

Note: Port 8000 is the load balancer - this will send requests to the fastest responding server. Try sending a request to 8001 or 8002 to see the behaviour.

How to run unit tests

1. Clone this repository
2. Request access for a .pem key. Email kyle.jensen72@gmail.com for access.
3. Store your .pem key in the default location (~/.ssh/pem/ec2-user.pem)
4. Run npm test to run the JEST testing suite

How to run scripts

1. Make sure the bash scripts are executable. You can run the following command in the root folder:

$ chmod +x deploy_servers
$ chmod +x start_server
$ chmod +x stop_server
$ chmod +x check_logs

2. Run the appropriate command. You can get information about how to use each command by specifying the --help or -H flags

Examples:
$ ./deploy_servers
$ ./start_server --all
$ ./stop_server --help

Note: These commands only work on the live production code at the moment - support for localhost may be added in the future