danger-mouse

danger-mouse

state mutating server for stress testing your monitoring setup

Install

go get github.com/bpostlethwaite/danger-mouse
go install

danger-mouse requires a configuration file danger.json in one of these directories:

1. ./
2. /etc
3. /var/lib/danger/

for the following example we will copy the default config into /etc

cp $GOPATH/src/github.com/bpostlethwaite/danger-mouse/danger.json /etc/danger.json

finally start the daemon with (provided you have included your GOPATH/bin in your path) with

danger-mouse

permissions

If the configuration file or the working directory of danger-mouse is set in a file with higher than user permissions you will have to elevate permissions with

sudo danger-mouse

For a more concise start script symlink danger-mouse to danger with

ln -s $GOPATH/bin/danger-mouse /usr/local/bin/danger

Usage

the following assumes you have symlinked to danger

Daemon control

start the daemon process

danger

stop the daemon process

danger -s stop

Danger Commands

memup

Increase the memory of the server process by n mb

danger memup 60

memdown

Decrease the memory of the server back to running requirements

danger memdown

ping

Change the returned status code of the url ping/

danger ping 500

cpu

Burn 100% CPU for n seconds

danger cpu 30

dbup

Set the file size of the db located at (the configurable) work-dir/db-file by n mb

danger dbup 100

dbdown

Truncate the file size of the db file to 0 bytes

danger dbdown

License MIT