skamithi

# The IP Address Validator accepts the following options
# 
#   * allow_nil - allows nil values
#   * allow_blank - allows blank values
#   * allow_cidr - allows /prefixlen CIDR masks in values
#
# the validator will use regular expressions in an attempt to prevent
# malformed IP addresses from being passed to the IPAddr.new initializer
# as this method can be very slow to raise exceptions for malformed input.
class IpAddressValidator < ActiveModel::EachValidator

skamithi

#!/usr/bin/env ruby

require 'getoptlong'
require 'rubygems'
require 'snmp'

SNMP_COMMUNITY = 'public'
HOSTNAME_BLACKLIST = [ "that_one_switch_thats_down_but_in_dns" ]
ZONE_FILE = /path/to/dns/zone/file
HOSTNAME_REGEX = /^\s?(switch[0-9]+)/i

skamithi

To log checks from sensu into logstash, I use the following sensu config:

{
  "handlers": {
    "logstash": {
      "type": "tcp",
      "socket": {
        "host": "logstash.example.com",
        "port": 1234

skamithi

input {
        pipe {
                type => "sflow"
                command => "/usr/local/bin/sflowtool_wrapper.sh -l -p 6343"
        }
}

skamithi

#!/bin/bash
#
# Wrapper script for sflowtool when used in pipe input in logstash.
# This wrapper script ensures that the sflowtool is not running prior to start of the sflowtool.

ARGS="$@"
SFLOWTOOL_PID=$(/bin/ps -ef | /bin/grep "/usr/bin/sflowtool $ARGS" | /bin/grep -v "grep" | /bin/awk ' { print $2 } ')

if [ ! -z $SFLOWTOOL_PID ]; then
        kill -s 9 $SFLOWTOOL_PID

skamithi

#! /usr/bin/env ruby
#  encoding: UTF-8
#
#   check-environmentals
#
# DESCRIPTION:
#   Send a Warning message if an environmental sensor is
#   more than the warning threshold.
#   Send a critical message if sensor is beyond critical threshold.
#   Event is sent on first match. So if multiple environmental sensors

skamithi

[
    {
        "driver_hwmon": [
            "fan1"
        ], 
        "min": 7200, 
        "cpld_path": "/sys/bus/platform/devices/dell_s6000_cpld.0", 
        "0": "ok", 
        "state": "OK", 
        "prev_state": "OK",