To have healthy servers, it is important to have an automated check that can tell you if something is wrong. Gesund for the rescue!
Gesund is a simple health checker that provides ready classes to do various checks against running services, filesystem state and more. Currently the gesund gem itself only has a small number of file system checks, and several additional gems provide checks for redis, mysql, mongodb and http (https://github.com/devops-israel?q=gesund)
This project is early alpha - you are welcome to help out and make it shine.
Add this line to your application's Gemfile:
gem 'gesund'
And then execute:
$ bundle
Or install it yourself as:
$ gem install gesund
First create a Gesundfile that will list the required checks, for example:
require "gesund/redis"
require "gesund/mysql"
require "gesund/mongo"
require "gesund/http"
check :file, "/tmp/testfile"
check :link, "/tmp/testlink"
check :directory, "/tmp"
check :redis_connection
check :mysql_connection
check :mongo_connection
check :http_status, url: "http://www.google.com/"
# vi: set ft=ruby ai ts=2 sw=2 et sts=2
Then you can either run it on the command line, or start a Rack server that will answer to requests with the results of the required checks.
Running on the command line -
$ gesund
200: File /tmp/testfile is a file
200: Symbolic link /tmp/testlink is a symlink
200: Directory /tmp is a directory
200: Redis PING = PONG
500: Mysql::Error: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
200: Mongo PING = OK
500: HTTP GET request to http://www.google.com/ status is 302
RESULT: Health check failed!
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request