SLB - Simple Load-Balancer

SLB was made for simplicity. It was not created to replace Nginx. It came out of a basic need to have a simple load-balancer, that is easy to configure and use for personal projects. Written entirely in Go, SLB currently has only round-robin routing but a ping-based router is also in the works.

Configuration

Basic Config

{
    "servers": 
    [
    "http://192.164.5.2:8080",
    "https://example.com",
    "http://192.164.5.2:9000"
    ],
    "port" : "9000"
}

Standard Config

{
    "routes":
        [
            {
                "route" : "/test",
                "endpoints" : [
                    "http://192.165.33.22:8080",
                    "http://192.165.33.22:8081",
                    "http://192.165.33.22:8082"
                ]
            },
            {
                "route" : "/run",
                "endpoints" : [
                    "http://192.133.42.3:9000",
                    "http://192.133.42.3:9001",
                    "http://192.133.42.3:9002",
                    "http://192.133.42.3:9003"
                ]
            }
        ],
    "port" : "8000"
}

Routes allows you to specify a set of servers for handling each base address.
If the config file has a servers key, the routes key will be ignored.
If the config file is changed, press enter to reload the server. This is not a graceful restart.

Run

go run main.go ./conf.json

Features

• Configurable
• Simple to use
• Highly reliable
• Multi route support

TODO

• Ping based routing
• Graceful shutdown
• Support for caching

Feel free to open issues and send pull-requests.