Slack-Integration für Monit

monit.conf

check system localhost
    if memory usage > 75% for 5 cycles then exec /usr/local/bin/monit_slack.rb else if succeeded then exec /usr/local/bin/monit_slack.rb

monit_slack.rb

#!/usr/bin/ruby
require "net/https"
require "json"

webhook  = ""
channel  = ""
username = ""

webhook = URI.parse(webhook)
http = Net::HTTP.new(webhook.host, webhook.port)
http.use_ssl = true

request = Net::HTTP::Post.new(webhook.request_uri, {"Content-Type" => "application/json"})
request.body = {
    "channel"  => channel,
    "username" => username,
    "text"     => "[#{ENV['MONIT_HOST']}] #{ENV['MONIT_SERVICE']} - #{ENV['MONIT_DESCRIPTION']}"
}.to_json

http.request(request)