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#
# Author:: Mathieu Sauve-Frankel <msf@kisoku.net>
# Copyright:: Copyright (c) 2009 Mathieu Sauve-Frankel
# 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.
#
require 'chef/mixin/shell_out'
require 'chef/provider/service'
require 'chef/mixin/command'
class Chef
class Provider
class Service
class Simple < Chef::Provider::Service
include Chef::Mixin::ShellOut
def load_current_resource
@current_resource = Chef::Resource::Service.new(@new_resource.name)
@current_resource.service_name(@new_resource.service_name)
@status_load_success = true
@ps_command_failed = false
determine_current_status!
@current_resource
end
def whyrun_supported?
true
end
def shared_resource_requirements
super
requirements.assert(:all_actions) do |a|
a.assertion { @status_load_success }
a.whyrun ["Service status not available. Assuming a prior action would have installed the service.", "Assuming status of not running."]
end
end
def define_resource_requirements
# FIXME? need reload from service.rb
shared_resource_requirements
requirements.assert(:start) do |a|
a.assertion { @new_resource.start_command }
a.failure_message Chef::Exceptions::Service, "#{self.to_s} requires that start_command be set"
end
requirements.assert(:stop) do |a|
a.assertion { @new_resource.stop_command }
a.failure_message Chef::Exceptions::Service, "#{self.to_s} requires that stop_command be set"
end
requirements.assert(:restart) do |a|
a.assertion { @new_resource.restart_command || ( @new_resource.start_command && @new_resource.stop_command ) }
a.failure_message Chef::Exceptions::Service, "#{self.to_s} requires a restart_command or both start_command and stop_command be set in order to perform a restart"
end
requirements.assert(:reload) do |a|
a.assertion { @new_resource.reload_command }
a.failure_message Chef::Exceptions::UnsupportedAction, "#{self.to_s} requires a reload_command be set in order to perform a reload"
end
requirements.assert(:all_actions) do |a|
a.assertion { @new_resource.status_command or @new_resource.supports[:status] or
(!ps_cmd.nil? and !ps_cmd.empty?) }
a.failure_message Chef::Exceptions::Service, "#{@new_resource} could not determine how to inspect the process table, please set this node's 'command.ps' attribute"
end
requirements.assert(:all_actions) do |a|
a.assertion { !@ps_command_failed }
a.failure_message Chef::Exceptions::Service, "Command #{ps_cmd} failed to execute, cannot determine service current status"
end
end
def start_service
shell_out!(@new_resource.start_command)
end
def stop_service
shell_out!(@new_resource.stop_command)
end
def restart_service
if @new_resource.restart_command
shell_out!(@new_resource.restart_command)
else
stop_service
sleep 1
start_service
end
end
def reload_service
shell_out!(@new_resource.reload_command)
end
protected
def determine_current_status!
if @new_resource.status_command
Chef::Log.debug("#{@new_resource} you have specified a status command, running..")
begin
if shell_out(@new_resource.status_command).exitstatus == 0
@current_resource.running true
Chef::Log.debug("#{@new_resource} is running")
end
rescue Mixlib::ShellOut::ShellCommandFailed, SystemCallError
# ShellOut sometimes throws different types of Exceptions than ShellCommandFailed.
# Temporarily catching different types of exceptions here until we get Shellout fixed.
# TODO: Remove the line before one we get the ShellOut fix.
@status_load_success = false
@current_resource.running false
nil
end
elsif @new_resource.supports[:status]
Chef::Log.debug("#{@new_resource} supports status, running")
begin
if shell_out("#{@init_command} status").exitstatus == 0
@current_resource.running true
Chef::Log.debug("#{@new_resource} is running")
end
# ShellOut sometimes throws different types of Exceptions than ShellCommandFailed.
# Temporarily catching different types of exceptions here until we get Shellout fixed.
# TODO: Remove the line before one we get the ShellOut fix.
rescue Mixlib::ShellOut::ShellCommandFailed, SystemCallError
@status_load_success = false
@current_resource.running false
nil
end
else
Chef::Log.debug "#{@new_resource} falling back to process table inspection"
r = Regexp.new(@new_resource.pattern)
Chef::Log.debug "#{@new_resource} attempting to match '#{@new_resource.pattern}' (#{r.inspect}) against process list"
begin
shell_out!(ps_cmd).stdout.each_line do |line|
if r.match(line)
@current_resource.running true
break
end
end
@current_resource.running false unless @current_resource.running
Chef::Log.debug "#{@new_resource} running: #{@current_resource.running}"
# ShellOut sometimes throws different types of Exceptions than ShellCommandFailed.
# Temporarily catching different types of exceptions here until we get Shellout fixed.
# TODO: Remove the line before one we get the ShellOut fix.
rescue Mixlib::ShellOut::ShellCommandFailed, SystemCallError
@ps_command_failed = true
end
end
end
def ps_cmd
@run_context.node[:command] && @run_context.node[:command][:ps]
end
end
end
end
end
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