Class: Chef::Provider::Service::Freebsd

Inherits:
Init show all
Includes:
Mixin::ShellOut
Defined in:
lib/chef/provider/service/freebsd.rb

Constant Summary

Constants included from Mixin::ShellOut

Mixin::ShellOut::DEPRECATED_OPTIONS

Instance Attribute Summary

Attributes inherited from Chef::Provider

#action, #current_resource, #new_resource, #run_context

Instance Method Summary collapse

Methods included from Mixin::ShellOut

#run_command_compatible_options, #shell_out, #shell_out!

Methods inherited from Init

#initialize, #reload_service

Methods inherited from Simple

#reload_service, #shared_resource_requirements, #whyrun_supported?

Methods inherited from Chef::Provider::Service

#action_disable, #action_enable, #action_reload, #action_restart, #action_start, #action_stop, #initialize, #load_new_resource_state, #reload_service, #shared_resource_requirements, #whyrun_supported?

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, #cleanup_after_converge, #cookbook_name, #events, #initialize, #node, #process_resource_requirements, #requirements, #resource_collection, #run_action, #set_updated_status, #whyrun_mode?, #whyrun_supported?

Methods included from DSL::Recipe

#method_missing

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #convert_to_snake_case, #filename_to_qualified_string, #snake_case_basename

Constructor Details

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

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Chef::DSL::Recipe

Instance Method Details

#define_resource_requirements ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 70

def define_resource_requirements
  shared_resource_requirements
  requirements.assert(:start, :enable, :reload, :restart) do |a|
    a.assertion { @rcd_script_found } 
    a.failure_message Chef::Exceptions::Service, "#{@new_resource}: unable to locate the rc.d script"
  end

  requirements.assert(:all_actions) do |a| 
    a.assertion { @enabled_state_found }  
    # for consistentcy with original behavior, this will not fail in non-whyrun mode; 
    # rather it will silently set enabled state=>false
    a.whyrun "Unable to determine enabled/disabled state, assuming this will be correct for an actual run.  Assuming disabled." 
  end

  requirements.assert(:start, :enable, :reload, :restart) do |a|
    a.assertion { @rcd_script_found && service_enable_variable_name != nil } 
    a.failure_message Chef::Exceptions::Service, "Could not find the service name in #{@init_command} and rcvar"
    # No recovery in whyrun mode - the init file is present but not correct.
  end
end

#disable_service ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 168

def disable_service()
  set_service_enable("NO") if @current_resource.enabled
end

#enable_service ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 164

def enable_service()
  set_service_enable("YES") unless @current_resource.enabled
end

#load_current_resource ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 30

def load_current_resource
  @current_resource = Chef::Resource::Service.new(@new_resource.name)
  @current_resource.service_name(@new_resource.service_name)
  @rcd_script_found = true
  @enabled_state_found = false
  # Determine if we're talking about /etc/rc.d or /usr/local/etc/rc.d
  if ::File.exists?("/etc/rc.d/#{current_resource.service_name}")
    @init_command = "/etc/rc.d/#{current_resource.service_name}"
  elsif ::File.exists?("/usr/local/etc/rc.d/#{current_resource.service_name}")
    @init_command = "/usr/local/etc/rc.d/#{current_resource.service_name}"
  else
    @rcd_script_found = false 
    return
  end
  Chef::Log.debug("#{@current_resource} found at #{@init_command}")
  determine_current_status!
  # Default to disabled if the service doesn't currently exist
  # at all 
  var_name = service_enable_variable_name
  if ::File.exists?("/etc/rc.conf") && var_name
    read_rc_conf.each do |line|
      case line
      when /#{Regexp.escape(var_name)}="(\w+)"/
        @enabled_state_found = true
        if $1 =~ /[Yy][Ee][Ss]/
          @current_resource.enabled true
        elsif $1 =~ /[Nn][Oo][Nn]?[Oo]?[Nn]?[Ee]?/
          @current_resource.enabled false
        end
      end
    end
  end
  unless @current_resource.enabled
    Chef::Log.debug("#{@new_resource.name} enable/disable state unknown")
    @current_resource.enabled false
  end

  @current_resource
end

#read_rc_conf ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 120

def read_rc_conf
  ::File.open("/etc/rc.conf", 'r') { |file| file.readlines }
end

#restart_service ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 107

def restart_service
  if @new_resource.restart_command

    super
  elsif @new_resource.supports[:restart]
    shell_out!("#{@init_command} fastrestart")
  else
    stop_service
    sleep 1
    start_service
  end
end

#service_enable_variable_name ⇒ Object

The variable name used in /etc/rc.conf for enabling this service



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# File 'lib/chef/provider/service/freebsd.rb', line 131

def service_enable_variable_name
  # Look for name="foo" in the shell script @init_command. Use this for determining the variable name in /etc/rc.conf
  # corresponding to this service
  # For example: to enable the service mysql-server with the init command /usr/local/etc/rc.d/mysql-server, you need
  # to set mysql_enable="YES" in /etc/rc.conf$
  if @rcd_script_found   
    ::File.open(@init_command) do |rcscript|
      rcscript.each_line do |line|
        if line =~ /^name="?(\w+)"?/
          return $1 + "_enable"
        end
      end
    end
    # some scripts support multiple instances through symlinks such as openvpn.
    # We should get the service name from rcvar.
    Chef::Log.debug("name=\"service\" not found at #{@init_command}. falling back to rcvar")
    sn = shell_out!("#{@init_command} rcvar").stdout[/(\w+_enable)=/, 1]
    return sn
  end
  # Fallback allows us to keep running in whyrun mode when
  # the script does not exist.
  @new_resource.service_name
end

#set_service_enable(value) ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 155

def set_service_enable(value)
  lines = read_rc_conf
  # Remove line that set the old value
  lines.delete_if { |line| line =~ /#{Regexp.escape(service_enable_variable_name)}/ }
  # And append the line that sets the new value at the end
  lines << "#{service_enable_variable_name}=\"#{value}\""
  write_rc_conf(lines)
end

#start_service ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 91

def start_service
  if @new_resource.start_command
    super
  else
    shell_out!("#{@init_command} faststart")
  end
end

#stop_service ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 99

def stop_service
  if @new_resource.stop_command
    super
  else
    shell_out!("#{@init_command} faststop")
  end
end

#write_rc_conf(lines) ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 124

def write_rc_conf(lines)
  ::File.open("/etc/rc.conf", 'w') do |file|
    lines.each { |line| file.puts(line) }
  end
end