Add monit cookbook.

monit/LICENSE.txt

+The MIT License (MIT)
+Copyright © 2011-2013 Phil Cohen <github@phlippers.net>
+
+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.

monit/README.md

+# chef-monit  [![Build Status](https://secure.travis-ci.org/phlipper/chef-monit.png)](http://travis-ci.org/phlipper/chef-monit) [![Code Climate](https://codeclimate.com/badge.png)](https://codeclimate.com/github/phlipper/chef-monit)
+
+## Description
+
+Installs the `monit` package from (http://mmonit.com/monit/).
+
+
+## Requirements
+
+### Supported Platforms
+
+The following platforms are supported by this cookbook, meaning that the recipes run on these platforms without error:
+
+* Ubuntu
+* Debian
+* RedHat
+* CentOS
+* Scientific
+* Fedora
+* SUSE
+* Amazon
+
+
+## Recipes
+
+* `monit` - The default recipe. Sets up the service definition and default checks.
+
+
+## Resources
+
+### `monit_monitrc`
+
+The following will create a monitrc configuration:
+
+```ruby
+monit_monitrc "ssh" do
+  variables({ category: "system" })
+end
+```
+
+The `name` parameter must match a file located in your templates directory. In the example above, this would be `ssh.monitrc.erb`.
+
+The `variables` option within the block is optional, and can contain a list of key-value pairs to assign within your template.
+
+
+## Usage
+
+This cookbook installs the monit components if not present, and pulls updates if they are installed on the system.
+
+
+## Attributes
+
+```ruby
+# Delay the start of polling when the service is started
+default["monit"]["start_delay"] = 0
+
+# How frequently the monit daemon polls for changes.
+default["monit"]["polling_frequency"] = 20
+
+# Use syslog for logging instead of a logfile.
+default["monit"]["use_syslog"]        = true
+
+# If not using syslog, the log file that monit will use.
+default["monit"]["logfile"]           = "/var/log/monit.log"
+
+# Enable emails for internal monit alerts
+default["monit"]["mail_alerts"]       = true
+
+# Email address that will be notified of events.
+default["monit"]["alert_email"]       = "root@localhost"
+
+# Enable the web interface and define credentials.
+default["monit"]["web_interface"] = {
+  :enable  => true,
+  :port    => 2812,
+  :address => "localhost",
+  :allow   => ["localhost", "admin:b1gbr0th3r"]
+}
+
+# Email settings that will be used for notification of events.
+default["monit"]["mail"] = {
+  :hostname => "localhost",
+  :port     => 25,
+  :username => nil,
+  :password => nil,
+  :from     => "monit@$HOST",
+  :subject  => "$SERVICE $EVENT at $DATE",
+  :message  => "Monit $ACTION $SERVICE at $DATE on $HOST,\n\n$DESCRIPTION\n\nDutifully,\nMonit",
+  :security => nil,  # 'SSLV2'|'SSLV3'|'TLSV1'
+  :timeout  => 30
+}
+
+case node["platform_family"]
+when "rhel", "fedora", "suse"
+  default["monit"]["main_config_path"] = "/etc/monit.conf"
+  default["monit"]["includes_dir"]     = "/etc/monit.d"
+else
+  default["monit"]["main_config_path"] = "/etc/monit/monitrc"
+  default["monit"]["includes_dir"]     = "/etc/monit/conf.d"
+end
+
+# The monit::default recipe will load these monit_monitrc resources automatically
+# NOTE setting this attribute at the default level will append values to the array
+default["monit"]["default_monitrc_configs"] = ["load", "ssh"]
+```
+
+
+## Contributors
+
+Many thanks go to the following [contributors](https://github.com/phlipper/chef-monit/graphs/contributors) who have helped to make this cookbook even better:
+
+* **[@werdan](https://github.com/werdan)**
+    * add support for redhat-flavored systems
+* **[@auser](https://github.com/auser)**
+    * add missing metadata
+* **[@arrowcircle](https://github.com/arrowcircle)**
+    * update syntax to be Ruby 1.8-compatible
+* **[@dwradcliffe](https://github.com/dwradcliffe)**
+    * typo fix for README
+* **[@tjwallace](https://github.com/tjwallace)**
+    * load default monitrc configs from an attribute
+* **[@tomdz](https://github.com/tomdz)**
+    * Ruby 1.8.x compatibility fix
+    * add support for templates in different cookbooks
+* **[@alexism](https://github.com/alexism)**
+    * support other security protocols
+* **[@fixlr](https://github.com/fixlr)**
+    * add `mail_alerts` attribute
+* **[@darron](https://github.com/darron)**
+    * add descriptions to email notifications
+* **[@claco](https://github.com/claco)**
+    * add startup delay option to monit daemon config
+    * restart on default monitrc configs change
+    * restart monit service if the monit config changes
+    * fix platform family logic
+
+
+## Contributing
+
+1. Fork it
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Added some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create new Pull Request
+
+
+## License
+
+**chef-monit**
+
+* Freely distributable and licensed under the [MIT license](http://phlipper.mit-license.org/2011-2013/license.html).
+* Copyright (c) 2011-2013 Phil Cohen (github@phlippers.net) [![endorse](http://api.coderwall.com/phlipper/endorsecount.png)](http://coderwall.com/phlipper)
+* http://phlippers.net/

monit/Rakefile

+#!/usr/bin/env rake
+
+task :default => :foodcritic
+
+desc "Runs foodcritic linter"
+task :foodcritic do
+  if RUBY_VERSION >= "1.9"
+    Rake::Task[:prepare_sandbox].execute
+
+    sh "bundle exec foodcritic -f any #{sandbox_path}"
+  end
+end
+
+desc "Runs knife cookbook test"
+task :knife do
+  Rake::Task[:prepare_sandbox].execute
+
+  sh "bundle exec knife cookbook test cookbook -c test/.chef/knife.rb -o #{sandbox_path}/../"
+end
+
+task :prepare_sandbox do
+  files = %w{*.md *.rb attributes definitions libraries files providers recipes resources templates}
+
+  rm_rf sandbox_path
+  mkdir_p sandbox_path
+  cp_r Dir.glob("{#{files.join(",")}}"), sandbox_path
+end
+
+private
+
+def sandbox_path
+  File.join(File.dirname(__FILE__), %w[tmp cookbooks cookbook])
+end

monit/attributes/default.rb

+#
+# Cookbook Name:: monit
+# Attributes:: default
+#
+# Author:: Phil Cohen <github@phlippers.net>
+#
+# Copyright 2011-2012, Phil Cohen
+#
+
+
+# Delay the start of polling when the service is started
+default["monit"]["start_delay"] = 0
+
+# How frequently the monit daemon polls for changes.
+default["monit"]["polling_frequency"] = 20
+
+# Use syslog for logging instead of a logfile.
+default["monit"]["use_syslog"]        = true
+
+# If not using syslog, the log file that monit will use.
+default["monit"]["logfile"]           = "/var/log/monit.log"
+
+# Enable emails for internal monit alerts
+default["monit"]["mail_alerts"]       = true
+
+# Email address that will be notified of events.
+default["monit"]["alert_email"]       = "root@localhost"
+
+# Enable the web interface and define credentials.
+default["monit"]["web_interface"] = {
+  :enable  => true,
+  :port    => 2812,
+  :address => "localhost",
+  :allow   => ["localhost", "admin:b1gbr0th3r"]
+}
+
+# Email settings that will be used for notification of events.
+default["monit"]["mail"] = {
+  :hostname => "localhost",
+  :port     => 25,
+  :username => nil,
+  :password => nil,
+  :from     => "monit@$HOST",
+  :subject  => "$SERVICE $EVENT at $DATE",
+  :message  => "Monit $ACTION $SERVICE at $DATE on $HOST,\n\n$DESCRIPTION\n\nDutifully,\nMonit",
+  :security => nil,  # 'SSLV2'|'SSLV3'|'TLSV1'
+  :timeout  => 30
+}
+
+case node["platform_family"]
+when "rhel", "fedora", "suse"
+  default["monit"]["main_config_path"] = "/etc/monit.conf"
+  default["monit"]["includes_dir"]     = "/etc/monit.d"
+else
+  default["monit"]["main_config_path"] = "/etc/monit/monitrc"
+  default["monit"]["includes_dir"]     = "/etc/monit/conf.d"
+end
+
+# The monit::default recipe will load these monit_monitrc resources automatically
+# NOTE setting this attribute at the default level will append values to the array
+default["monit"]["default_monitrc_configs"] = ["load", "ssh"]

monit/metadata.rb

+name              "monit"
+maintainer        "Phil Cohen"
+maintainer_email  "github@phlippers.net"
+license           "MIT"
+description       "Configures monit"
+long_description  "Please refer to README.md"
+version           "1.4.0"
+
+recipe "monit", "Sets up the service definition and default checks."
+
+%w[ubuntu debian redhat centos scientific fedora suse amazon].each do |os|
+  supports os
+end

monit/providers/monitrc.rb

+action :create do
+  t = template "#{node["monit"]["includes_dir"]}/#{new_resource.name}.monitrc" do
+    owner "root"
+    group "root"
+    mode  "0644"
+    source new_resource.template_source || "#{new_resource.name}.monitrc.erb"
+    cookbook new_resource.template_cookbook
+    variables new_resource.variables
+    action :create
+    notifies :restart, "service[monit]", :delayed
+  end
+
+  new_resource.updated_by_last_action(t.updated_by_last_action?)
+end
+
+action :delete do
+  f = file "#{node["monit"]["includes_dir"]}/#{new_resource.name}.monitrc" do
+    action :delete
+    notifies :restart, "service[monit]", :delayed
+  end
+
+  new_resource.updated_by_last_action(f.updated_by_last_action?)
+end

monit/recipes/default.rb

+#
+# Cookbook Name:: monit
+# Recipe:: default
+#
+
+package "monit"
+
+# configuration file
+template node["monit"]["main_config_path"] do
+  owner  "root"
+  group  "root"
+  mode   "0700"
+  source "monitrc.erb"
+  notifies :restart, "service[monit]", :delayed
+end
+
+directory "/var/monit" do
+  owner "root"
+  group "root"
+  mode  "0700"
+end
+
+# enable service startup
+execute "enable-monit-startup" do
+  command "/bin/sed s/START=no/START=yes/ -i /etc/default/monit"
+  not_if "grep 'START=yes' /etc/default/monit"
+  only_if { platform_family?("debian") }
+end
+
+# system service
+service "monit" do
+  service_name "monit"
+
+  case node["platform_family"]
+  when "rhel", "fedora", "suse"
+    start_command "/sbin/service monit start"
+    restart_command "/sbin/service monit restart"
+  when "debian"
+    start_command "/usr/sbin/invoke-rc.d monit start"
+    restart_command "/usr/sbin/invoke-rc.d monit restart"
+  end
+
+  supports value_for_platform(
+    "debian" => { "4.0" => [ :restart, :start ], "default" => [ :restart, :start ] },
+    "ubuntu" => { "default" => [ :restart, :start ] },
+    "redhat" => { "default" => [ :restart, :start ] },
+    "centos" => { "default" => [ :restart, :start ] },
+    "fedora" => { "default" => [ :restart, :start ] },
+    "default" => { "default" => [:restart, :start ] }
+  )
+
+  action :enable
+end
+
+# build default monitrc files
+node["monit"]["default_monitrc_configs"].each do |conf|
+  monit_monitrc conf do
+    variables(:category => "system")
+    notifies :restart, "service[monit]", :delayed
+  end
+end

monit/resources/monitrc.rb

+actions :create, :delete
+default_action :create
+
+attribute :name, :kind_of => String, :name_attribute => true
+attribute :variables, :kind_of => Hash
+# the cookbook containing the template, defaults to the one invoking this LWRP
+attribute :template_source, :kind_of => String
+# the template file name, defaults to #{name}.monitrc.erb
+attribute :template_cookbook, :kind_of => String

monit/templates/centos/ssh.monitrc.erb

+check process sshd with pidfile /var/run/sshd.pid
+  start program "/sbin/service sshd start"
+  stop program "/sbin/service sshd stop"
+  if failed port 22 protocol ssh then restart
+  if 5 restarts within 5 cycles then timeout
\ No newline at end of file

monit/templates/default/load.monitrc.erb

+check system <%= node["fqdn"] %>
+  if loadavg (1min) > 4 for 2 cycles then alert
+  if loadavg (5min) > 2 for 2 cycles then alert
+  if memory usage > 75% for 2 cycles then alert
+  if cpu usage (user) > 70% for 2 cycles then alert
+  if cpu usage (system) > 30% for 2 cycles then alert
+  if cpu usage (wait) > 20% for 2 cycles then alert

monit/templates/default/monitrc.erb

+# Polling frequency
+set daemon <%= node["monit"]["polling_frequency"] %>
+<% if node["monit"]["start_delay"].to_i > 0 %>
+  with start delay <%= node["monit"]["start_delay"].to_i %>
+<% end -%>
+
+# Logging
+<% if node["monit"]["syslog"] == "true" %>
+set logfile syslog facility log_daemon
+<% else %>
+set logfile <%= node["monit"]["logfile"] %>
+<% end %>
+
+<% if node['monit']['mail_alerts'] %>
+# Mail alerts
+set alert <%= node["monit"]["alert_email"] %>
+<% end %>
+
+set mailserver <%= node["monit"]["mail"]["hostname"] %> port <%= node["monit"]["mail"]["port"] %>
+  <% if node["monit"]["mail"]["username"] -%>
+  username "<%= node["monit"]["mail"]["username"] %>"
+  <% end -%>
+  <% if node["monit"]["mail"]["password"] -%>
+  password "<%= node["monit"]["mail"]["password"] %>"
+  <% end -%>
+<% if node["monit"]["mail"]["security"] -%>
+    using <%= node["monit"]["mail"]["security"] %>
+<% end -%>
+  with timeout <%= node["monit"]["mail"]["timeout"] %> seconds
+
+set mail-format {
+  from: <%= node["monit"]["mail"]["from"] %>
+  subject: <%= node["monit"]["mail"]["subject"] %>
+  message: <%= node["monit"]["mail"]["message"] %>
+}
+
+<% if node["monit"]["web_interface"]["enable"] %>
+# Web interface
+set httpd port <%= node["monit"]["web_interface"]["port"] %> and
+  use address <%= node["monit"]["web_interface"]["address"] %>
+  <% node["monit"]["web_interface"]["allow"].each do |allow| -%>
+  allow <%= allow %>
+  <% end %>
+<% end %>
+
+# Include config files
+include <%= node["monit"]["includes_dir"] %>/*

monit/templates/default/ssh.monitrc.erb

+check process sshd with pidfile /var/run/sshd.pid
+  start program "/etc/init.d/ssh start"
+  stop program "/etc/init.d/ssh stop"
+  if failed port 22 protocol ssh then restart
+  if 5 restarts within 5 cycles then timeout
\ No newline at end of file

monit/test/.chef/knife.rb

+cache_type "BasicFile"
+cache_options(:path => "#{ENV["HOME"]}/.chef/checksums")

monit/test/support/Gemfile

+source "https://rubygems.org"
+
+gem "rake"
+gem "foodcritic", :platform => :ruby_19
+gem "chef", ">= 10.12.0"