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

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

Instance Attribute Summary

Attributes inherited from Chef::Provider

#current_resource, #new_resource, #node

Instance Method Summary collapse

Methods inherited from Init

#initialize, #reload_service, #restart_service, #start_service, #stop_service

Methods inherited from Simple

#reload_service, #restart_service, #start_service, #stop_service

Methods inherited from Chef::Provider::Service

#action_disable, #action_enable, #action_reload, #action_restart, #action_start, #action_stop, #initialize, #reload_service, #restart_service, #start_service, #stop_service

Methods included from Mixin::Command

handle_command_failures, not_if, only_if, output_of_command, popen4, run_command, run_command_with_systems_locale

Methods inherited from Chef::Provider

#action_nothing, build_from_file, #initialize

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #filename_to_qualified_string

Methods included from Mixin::RecipeDefinitionDSLCore

#method_missing

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::Mixin::RecipeDefinitionDSLCore

Instance Method Details

#disable_service ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 150

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 146

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 27

def load_current_resource
  @current_resource = Chef::Resource::Service.new(@new_resource.name)
  @current_resource.service_name(@new_resource.service_name)

  # 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
    raise Chef::Exceptions::Service, "#{@new_resource}: unable to locate the rc.d script"
  end
  Chef::Log.debug("#{@current_resource.name} found at #{@init_command}")
    
  if @new_resource.supports[:status]
    Chef::Log.debug("#{@new_resource} supports status, checking state")

    begin
      if run_command(:command => "#{@init_command} status") == 0
        @current_resource.running true
      end
    rescue Chef::Exceptions::Exec
      @current_resource.running false
      nil
    end

  elsif @new_resource.status_command
    Chef::Log.debug("#{@new_resource} doesn't support status but you have specified a status command, running..")

    begin
      if run_command(:command => @new_resource.status_command) == 0
        @current_resource.running true
      end
    rescue Chef::Exceptions::Exec
      @current_resource.running false
      nil
    end

  else
    Chef::Log.debug("#{@new_resource} does not support status and you have not specified a status command, falling back to process table inspection")

    if @node[:command][:ps].nil? or @node[:command][:ps].empty?
      raise Chef::Exceptions::Service, "#{@new_resource}: could not determine how to inspect the process table, please set this nodes 'ps' attribute"
    end

    status = popen4(@node[:command][:ps]) do |pid, stdin, stdout, stderr|
      stdin.close rescue nil
      r = Regexp.new(@new_resource.pattern)
      Chef::Log.debug("#{@new_resource}: attempting to match #{@new_resource.pattern} (#{r}) against process table")
      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 #{@node[:command][:ps]} failed"
    else
      Chef::Log.debug("#{@new_resource}: #{@node[:command][:ps]} exited and parsed successfully, process running: #{@current_resource.running}")
    end
  end

  if ::File.exists?("/etc/rc.conf")
    read_rc_conf.each do |line|
      case line
      when /#{service_enable_variable_name}="(\w+)"/
        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")
  end
          
  @current_resource
end

#read_rc_conf ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 110

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

#service_enable_variable_name ⇒ Object

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

Raises:



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# File 'lib/chef/provider/service/freebsd.rb', line 122

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
  makefile = ::File.open(@init_command)
  makefile.each do |line|
    case line
    when /^name="?(\w+)"?/
      return $1 + "_enable"
    end
  end
  raise Chef::Exceptions::Service, "Could not find name=\"service\" line in #{@init_command}"
end

#set_service_enable(value) ⇒ Object 



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# File 'lib/chef/provider/service/freebsd.rb', line 137

def set_service_enable(value)
  lines = read_rc_conf
  # Remove line that set the old value
  lines.delete_if { |line| line =~ /#{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

#write_rc_conf(lines) ⇒ Object 



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

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