initial commit

.gitignore

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+/.bundle/
+/.yardoc
+/Gemfile.lock
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
+*.bundle
+*.so
+*.o
+*.a
+mkmf.log
+.vagrant/*
+.DS_Store
+.idea/*
+*.gem

.rubocop.yml

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+
+MethodLength:
+    Max: 200
+
+LineLength:
+    Max: 160
+
+FileName:
+    Enabled: false
+
+PerceivedComplexity:
+    Enabled: false
+
+CyclomaticComplexity:
+    Enabled: false
+
+ClassLength:
+    Enabled: false
+
+IfUnlessModifier:
+    Enabled: false
+
+RegexpLiteral:
+    Enabled: false
+

.travis.yml

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+language: ruby
+cache:
+  - bundler
+install:
+  - bundle install
+rvm:
+  - 1.9.3
+  - 2.0
+  - 2.1
+notifications:
+  email:
+    recipients:
+      - [email protected]
+    on_success: change
+    on_failure: always
+
+script:
+  - 'bundle exec rake default'

CHANGELOG.md

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+#### 0.0.1.alpha.1

CONTRIBUTING.md

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+[Development Documentation](http://sensu-plugins.github.io/development/)

Gemfile

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+source 'https://rubygems.org'
+
+gemspec

LICENSE

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+Copyright (c) 2015 [email protected]
+
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+## Sensu-Plugins-percona
+
+[![Build Status](https://travis-ci.org/sensu-plugins/sensu-plugins-percona.svg?branch=master)](https://travis-ci.org/sensu-plugins/sensu-plugins-percona)
+[![Gem Version](https://badge.fury.io/rb/sensu-plugins-percona.svg)](http://badge.fury.io/rb/sensu-plugins-percona)
+[![Code Climate](https://codeclimate.com/github/sensu-plugins/sensu-plugins-percona/badges/gpa.svg)](https://codeclimate.com/github/sensu-plugins/sensu-plugins-percona)
+[![Test Coverage](https://codeclimate.com/github/sensu-plugins/sensu-plugins-percona/badges/coverage.svg)](https://codeclimate.com/github/sensu-plugins/sensu-plugins-percona)
+[![Dependency Status](https://gemnasium.com/sensu-plugins/sensu-plugins-percona.svg)](https://gemnasium.com/sensu-plugins/sensu-plugins-percona)
+
+## Functionality
+
+## Files
+ * bin/check-percona-cluster-size
+ * bin/metrics-percona-cluster
+
+## Usage
+
+## Installation
+
+Add the public key (if you haven’t already) as a trusted certificate
+
+```
+gem cert --add <(curl -Ls https://raw.githubusercontent.com/sensu-plugins/sensu-plugins.github.io/master/certs/sensu-plugins.pem)
+gem install sensu-plugins-percona -P MediumSecurity
+```
+
+You can also download the key from /certs/ within each repository.
+
+#### Rubygems
+
+`gem install sensu-plugins-percona`
+
+#### Bundler
+
+Add *sensu-plugins-disk-checks* to your Gemfile and run `bundle install` or `bundle update`
+
+#### Chef
+
+Using the Sensu **sensu_gem** LWRP
+```
+sensu_gem 'sensu-plugins-percona' do
+  options('--prerelease')
+  version '0.0.1'
+end
+```
+
+Using the Chef **gem_package** resource
+```
+gem_package 'sensu-plugins-percona' do
+  options('--prerelease')
+  version '0.0.1'
+end
+```
+
+## Notes

Rakefile

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+require 'bundler/gem_tasks'
+require 'rspec/core/rake_task'
+require 'yard'
+require 'github/markup'
+require 'rubocop/rake_task'
+require 'redcarpet'
+require 'yard/rake/yardoc_task'
+
+desc 'Don\'t run Rubocop for unsupported versions'
+begin
+  if RUBY_VERSION >= '2.0.0'
+    args = [:spec, :make_bin_executable, :yard, :rubocop]
+  else
+    args = [:spec, :make_bin_executable, :yard]
+  end
+end
+
+YARD::Rake::YardocTask.new do |t|
+  OTHER_PATHS = %w()
+  t.files = ['lib/**/*.rb', 'bin/**/*.rb', OTHER_PATHS]
+  t.options = %w(--markup-provider=redcarpet --markup=markdown --main=README.md --files CHANGELOG.md)
+end
+
+Rubocop::RakeTask.new
+
+RSpec::Core::RakeTask.new(:spec) do |r|
+  r.pattern = FileList['**/**/*_spec.rb']
+end
+
+desc 'Make all plugins executable'
+task :make_bin_executable do
+  `chmod -R +x bin/***/*.rb`
+end
+
+task default: args

Vagrantfile

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+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+VAGRANTFILE_API_VERSION = '2'
+
+Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
+
+  config.vm.box = 'chef/centos-6.6'
+  config.vm.box_download_checksum = true
+  config.vm.box_download_checksum_type = 'md5'
+  config.vm.hostname = 'sensu-plugins-dev'
+
+  script = <<EOF
+  sudo yum update -y
+  sudo yum groupinstall -y development
+  sudo yum install -y vim nano
+  #sudo yum install -y ImagicMagic ImageMagick-devel mysql-devel # needed for bundle install
+  gpg2 --keyserver hkp://keys.gnupg.net --recv-keys D39DC0E3
+  curl -L get.rvm.io | bash -s stable
+  source /home/vagrant/.rvm/scripts/rvm
+  rvm reload
+  #rvm install 1.9.3
+  rvm install 2.1.4
+  #rvm install 2.0.0
+  #rvm use 1.9.3@sensu_plugins --create
+  #rvm use 2.0.0@sensu_plugins --create
+  rvm use 2.1.4@sensu_plugins --create
+  rvm use 2.1.4@sensu_plugins --default
+EOF
+
+  config.vm.provision 'shell', inline: script, privileged: false
+end

bin/check-percona-cluster-size.rb

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+#!/usr/bin/env ruby
+#
+# Percona Cluster Size Plugin
+# ===
+#
+# This plugin checks the number of servers in the Percona cluster and warns you according to specified limits
+#
+# Copyright 2012 Chris Alexander <[email protected]>, import.io
+# Based on the MySQL Health Plugin by Panagiotis Papadomitsos
+#
+# Depends on mysql:
+# gem install mysql
+#
+# Released under the same terms as Sensu (the MIT license); see LICENSE
+# for details.
+
+require 'rubygems' if RUBY_VERSION < '1.9.0'
+require 'sensu-plugin/check/cli'
+require 'mysql'
+
+class CheckPerconaClusterSize < Sensu::Plugin::Check::CLI
+  option :user,
+         description: 'MySQL User',
+         short: '-u USER',
+         long: '--user USER',
+         default: 'root'
+
+  option :password,
+         description: 'MySQL Password',
+         short: '-p PASS',
+         long: '--password PASS',
+         required: true
+
+  option :hostname,
+         description: 'Hostname to login to',
+         short: '-h HOST',
+         long: '--hostname HOST',
+         default: 'localhost'
+
+  option :expected,
+         description: 'Number of servers expected in the cluster',
+         short: '-e NUMBER',
+         long: '--expected NUMBER',
+         default: 1
+
+  def run
+    db = Mysql.real_connect(config[:hostname], config[:user], config[:password], config[:database])
+    cluster_size = db
+        .query("SHOW GLOBAL STATUS LIKE 'wsrep_cluster_size'")
+        .fetch_hash
+        .fetch('Value')
+        .to_i
+    critical "Expected to find #{config[:expected]} nodes, found #{cluster_size}" if cluster_size != config[:expected].to_i
+    ok "Expected to find #{config[:expected]} nodes and found those #{cluster_size}" if cluster_size == config[:expected].to_i
+  rescue Mysql::Error => e
+    critical "Percona MySQL check failed: #{e.error}"
+  ensure
+    db.close if db
+  end
+end