bin/check-eni-status.rb
#! /usr/bin/env ruby
#
# check-eni-status
#
# DESCRIPTION:
# This plugin checks the status of an elastic network interface
#
# OUTPUT:
# plain-text
#
# PLATFORMS:
# Linux
#
# DEPENDENCIES:
# gem: aws-sdk-v2
# gem: sensu-plugin
#
# USAGE:
# check-eni-status -e eni -w in-use -r region
# check-eni-status -e eni -c available -r region
#
# NOTES:
#
# LICENSE:
# Copyright (c) 2013, Damien DURANT <damien.durant@edifixio.com>
# Released under the same terms as Sensu (the MIT license); see LICENSE
# for details.
#
require 'sensu-plugin/check/cli'
require 'sensu-plugins-aws'
require 'aws-sdk'
#
# Check ENI Status
#
class ENIStatus < Sensu::Plugin::Check::CLI
include Common
option :aws_region,
short: '-r AWS_REGION',
long: '--aws-region REGION',
description: 'AWS Region (defaults to us-east-1).',
default: 'us-east-1'
option :eni,
short: '-e ENI_ID',
long: '--eni ENI_ID',
description: 'A comma seperated list of the Elastic Network Interfaces to check',
default: ''
option :warn_status,
short: '-w STATUS',
long: '--warn STATUS',
description: 'ENI status considered to be a warning',
default: ''
option :crit_status,
short: '-c STATUS',
long: '--crit STATUS',
description: 'ENI status considered to be critical',
default: ''
def aws_config
{ access_key_id: config[:aws_access_key],
secret_access_key: config[:aws_secret_access_key],
region: config[:aws_region] }
end
def run
Aws.config.update(aws_config)
client = Aws::EC2::Client.new
if config[:eni].empty?
critical 'Error, ENI(s) should be specified.'
end
if config[:crit_status].empty?
if config[:warn_status].empty?
critical 'Error, either crit_status or warn_status must be specified'
end
end
warnings = []
crits = []
eni = config[:eni].split(',')
eni.each do |e|
status = client.describe_network_interfaces(
filters: [{ name: 'network-interface-id', values: [e] }]
)[:network_interfaces].first
if status.nil?
warnings << "No Information found for #{e}"
elsif config[:crit_status].casecmp(status[:status]).zero?
crits << "#{e} is #{status[:status]}"
elsif config[:warn_status].casecmp(status[:status]).zero?
warnings << "#{e} is #{status[:status]}"
end
end
if crits.any?
critical crits.join(', ').to_s
elsif warnings.any?
warning warnings.join(', ').to_s
else
ok "all interfaces(s): #{eni} are OK"
end
end
end