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#
# Author:: Seth Chisamore (<schisamo@opscode.com>)
# Copyright:: Copyright (c) 2011 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
if RUBY_PLATFORM =~ /mswin|mingw32|windows/
require 'win32/service'
end
require 'chef/config'
require 'mixlib/cli'
class Chef
class Application
#
# This class is used to create and manage a windows service.
# Service should be created using Daemon class from
# win32/service gem.
# For an example see: Chef::Application::WindowsService
#
# Outside programs are expected to use this class to manage
# windows services.
#
class WindowsServiceManager
include Mixlib::CLI
option :action,
:short => "-a ACTION",
:long => "--action ACTION",
:default => "status",
:description => "Action to carry out on chef-service (install, uninstall, status, start, stop, pause, or resume)"
option :config_file,
:short => "-c CONFIG",
:long => "--config CONFIG",
:default => "#{ENV['SYSTEMDRIVE']}/chef/client.rb",
:description => "The configuration file to use for chef runs"
option :log_location,
:short => "-L LOGLOCATION",
:long => "--logfile LOGLOCATION",
:description => "Set the log file location for chef-service",
:default => "#{ENV['SYSTEMDRIVE']}/chef/client.log"
option :help,
:short => "-h",
:long => "--help",
:description => "Show this message",
:on => :tail,
:boolean => true,
:show_options => true,
:exit => 0
option :version,
:short => "-v",
:long => "--version",
:description => "Show chef version",
:boolean => true,
:proc => lambda {|v| puts "Chef: #{::Chef::VERSION}"},
:exit => 0
def initialize(service_options)
# having to call super in initialize is the most annoying
# anti-pattern :(
super()
raise ArgumentError, "Service definition is not provided" if service_options.nil?
required_options = [:service_name, :service_display_name, :service_description, :service_file_path]
required_options.each do |req_option|
if !service_options.has_key?(req_option)
raise ArgumentError, "Service definition doesn't contain required option #{req_option}"
end
end
@service_name = service_options[:service_name]
@service_display_name = service_options[:service_display_name]
@service_description = service_options[:service_description]
@service_file_path = service_options[:service_file_path]
@service_start_name = service_options[:run_as_user]
@password = service_options[:run_as_password]
@delayed_start = service_options[:delayed_start]
@dependencies = service_options[:dependencies]
end
def run(params = ARGV)
parse_options(params)
case config[:action]
when 'install'
if service_exists?
puts "Service #{@service_name} already exists on the system."
else
ruby = File.join(RbConfig::CONFIG['bindir'], 'ruby')
opts = ""
opts << " -c #{config[:config_file]}" if config[:config_file]
opts << " -L #{config[:log_location]}" if config[:log_location]
# Quote the full paths to deal with possible spaces in the path name.
# Also ensure all forward slashes are backslashes
cmd = "\"#{ruby}\" \"#{@service_file_path}\" #{opts}".gsub(File::SEPARATOR, File::ALT_SEPARATOR)
::Win32::Service.new(
:service_name => @service_name,
:display_name => @service_display_name,
:description => @service_description,
# Prior to 0.8.5, win32-service creates interactive services by default,
# and we don't want that, so we need to override the service type.
:service_type => ::Win32::Service::SERVICE_WIN32_OWN_PROCESS,
:start_type => ::Win32::Service::SERVICE_AUTO_START,
:binary_path_name => cmd,
:service_start_name => @service_start_name,
:password => @password,
:dependencies => @dependencies
)
::Win32::Service.configure(
:service_name => @service_name,
:delayed_start => @delayed_start
) unless @delayed_start.nil?
puts "Service '#{@service_name}' has successfully been installed."
end
when 'status'
if !service_exists?
puts "Service #{@service_name} doesn't exist on the system."
else
puts "State of #{@service_name} service is: #{current_state}"
end
when 'start'
# TODO: allow override of startup parameters here?
take_action('start', RUNNING)
when 'stop'
take_action('stop', STOPPED)
when 'uninstall', 'delete'
take_action('stop', STOPPED)
unless service_exists?
puts "Service #{@service_name} doesn't exist on the system."
else
::Win32::Service.delete(@service_name)
puts "Service #{@service_name} deleted"
end
when 'pause'
take_action('pause', PAUSED)
when 'resume'
take_action('resume', RUNNING)
end
end
private
# Just some state constants
STOPPED = "stopped"
RUNNING = "running"
PAUSED = "paused"
def service_exists?
return ::Win32::Service.exists?(@service_name)
end
def take_action(action=nil, desired_state=nil)
if service_exists?
if current_state != desired_state
::Win32::Service.send(action, @service_name)
wait_for_state(desired_state)
puts "Service '#{@service_name}' is now '#{current_state}'."
else
puts "Service '#{@service_name}' is already '#{desired_state}'."
end
else
puts "Cannot '#{action}' service '#{@service_name}'"
puts "Service #{@service_name} doesn't exist on the system."
end
end
def current_state
::Win32::Service.status(@service_name).current_state
end
# Helper method that waits for a status to change its state since state
# changes aren't usually instantaneous.
def wait_for_state(desired_state)
while current_state != desired_state
puts "One moment... #{current_state}"
sleep 1
end
end
end
end
end
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