Class: Chef::Provider::Service::Simple

Inherits:
Chef::Provider::Service show all
Defined in:
lib/chef/provider/service/simple.rb

Direct Known Subclasses

Init, Systemd, Upstart

Instance Attribute Summary

Attributes inherited from Chef::Provider

#current_resource, #new_resource, #run_context

Instance Method Summary collapse

Methods inherited from Chef::Provider::Service

#action_disable, #action_enable, #action_reload, #action_restart, #action_start, #action_stop, #disable_service, #enable_service, #initialize

Methods included from Mixin::Command

#chdir_or_tmpdir, #handle_command_failures, #output_of_command, #run_command, #run_command_with_systems_locale

Methods included from Mixin::Command::Windows

#popen4

Methods included from Mixin::Command::Unix

#popen4

Methods inherited from Chef::Provider

#action_nothing, build_from_file, #cookbook_name, #initialize, #node, #resource_collection

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #convert_to_snake_case, #filename_to_qualified_string, #snake_case_basename

Methods included from Mixin::RecipeDefinitionDSLCore

#method_missing

Methods included from Mixin::Language

#data_bag, #data_bag_item, #platform?, #search, #value_for_platform

Constructor Details

This class inherits a constructor from Chef::Provider::Service

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Chef::Mixin::RecipeDefinitionDSLCore

Instance Method Details

#load_current_resource ⇒ Object 



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# File 'lib/chef/provider/service/simple.rb', line 26

def load_current_resource
  @current_resource = Chef::Resource::Service.new(@new_resource.name)
  @current_resource.service_name(@new_resource.service_name)
  if @new_resource.status_command
    Chef::Log.debug("#{@new_resource} you have specified a status command, running..")

    begin
      if run_command(:command => @new_resource.status_command) == 0
        @current_resource.running true
        Chef::Log.debug("#{@new_resource} is running")
      end
    rescue Chef::Exceptions::Exec
      @current_resource.running false
      nil
    end

  elsif @new_resource.supports[:status]
    Chef::Log.debug("#{@new_resource} supports status, running")

    begin
      if run_command(:command => "#{@init_command} status") == 0
        @current_resource.running true
        Chef::Log.debug("#{@new_resource} is running")
      end
    rescue Chef::Exceptions::Exec
      @current_resource.running false
      nil
    end
  elsif
    Chef::Log.debug "#{@new_resource} falling back to process table inspection"
    if ps_cmd.nil? or ps_cmd.empty?
      raise Chef::Exceptions::Service, "#{@new_resource} could not determine how to inspect the process table, please set this nodes 'command.ps' attribute"
    end
    status = popen4(ps_cmd) do |pid, stdin, stdout, stderr|
      r = Regexp.new(@new_resource.pattern)
      Chef::Log.debug "#{@new_resource} attempting to match '#{@new_resource.pattern}' (#{r.inspect}) against process list"
      stdout.each_line do |line|
        if r.match(line)
          @current_resource.running true
          break
        end
      end
      @current_resource.running false unless @current_resource.running
    end
    unless status.exitstatus == 0
      raise Chef::Exceptions::Service, "Command #{ps_cmd} failed"
    else
      Chef::Log.debug "#{@new_resource} running: #{@current_resource.running}"
    end
  end

  @current_resource
end

#ps_cmd ⇒ Object 



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# File 'lib/chef/provider/service/simple.rb', line 114

def ps_cmd
  @run_context.node[:command] && @run_context.node[:command][:ps]
end

#reload_service ⇒ Object 



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# File 'lib/chef/provider/service/simple.rb', line 106

def reload_service
  if @new_resource.reload_command
    run_command(:command => @new_resource.reload_command)
  else
    raise Chef::Exceptions::Service, "#{self.to_s} requires that reload_command to be set"
  end
end

#restart_service ⇒ Object 



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# File 'lib/chef/provider/service/simple.rb', line 96

def restart_service
  if @new_resource.restart_command
    run_command(:command => @new_resource.restart_command)
  else
    stop_service
    sleep 1
    start_service
  end
end

#start_service ⇒ Object 



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# File 'lib/chef/provider/service/simple.rb', line 80

def start_service
  if @new_resource.start_command
    run_command(:command => @new_resource.start_command)
  else
    raise Chef::Exceptions::Service, "#{self.to_s} requires that start_command to be set"
  end
end

#stop_service ⇒ Object 



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# File 'lib/chef/provider/service/simple.rb', line 88

def stop_service
  if @new_resource.stop_command
    run_command(:command => @new_resource.stop_command)
  else
    raise Chef::Exceptions::Service, "#{self.to_s} requires that stop_command to be set"
  end
end