chaos-proxy

README

chaos-proxy

What is it?

Chaos-proxy acts almost as a normal proxy. It causes at random, normal http request error scenarios. 500's errors, timeout delays and connections drop.

But why?

I use it to test microservices resilience. If it works fine with chaos-proxy in the middle, it will certainly work without it.

Bind address

Default bind address and port: 0.0.0.0:6667. It can be changed setting CHAOSPROXY_BINDADDR environment variable.

Config file

chaos-proxy.json can be placed into project directory or, preferably, in /etc/chaos-proxy

• max_timeout: Sets the top boundary for random milliseconds to timeout the request.
• default_host: Where every request that does not match one of paths will be routed to.
• paths: Where to route specific requests. If path ends with / it's interpreted as "begins with".

{
	"max_timeout": 5000,
	"default_host": {
		"host": "http://localhost:6666"
	},
	"paths": {
		"/badservice/status/400": {
			"host": "http://localhost:6666"
		},
		"/badservice/status/403": {
			"host": "http://localhost:6666"
		},
		"/badservice/status/404": {
			"host": "http://localhost:6666"
		},
		"/data/2.5/": {
			"host": "http://api.openweathermap.org:80"
		}
	}
}

Status

Chaos-proxy is still in a very early stage. The "random error" generator is pretty lousy and there's code that can be improved for sure. But, as is, it works as intended.