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#
# Author:: AJ Christensen (<aj@opscode.com>)
# Copyright:: Copyright (c) 2008 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.
require 'chef'
require 'chef/application'
require 'chef/client'
require 'chef/config'
require 'chef/daemon'
require 'chef/log'
require 'chef/rest'
require 'open-uri'
require 'fileutils'
class Chef::Application::Solo < Chef::Application
option :config_file,
:short => "-c CONFIG",
:long => "--config CONFIG",
:default => "/etc/chef/solo.rb",
:description => "The configuration file to use"
option :log_level,
:short => "-l LEVEL",
:long => "--log_level LEVEL",
:description => "Set the log level (debug, info, warn, error, fatal)",
:proc => lambda { |l| l.to_sym }
option :log_location,
:short => "-L LOGLOCATION",
:long => "--logfile LOGLOCATION",
:description => "Set the log file location, defaults to STDOUT",
:proc => nil
option :help,
:short => "-h",
:long => "--help",
:description => "Show this message",
:on => :tail,
:boolean => true,
:show_options => true,
:exit => 0
option :user,
:short => "-u USER",
:long => "--user USER",
:description => "User to set privilege to",
:proc => nil
option :group,
:short => "-g GROUP",
:long => "--group GROUP",
:description => "Group to set privilege to",
:proc => nil
option :daemonize,
:short => "-d",
:long => "--daemonize",
:description => "Daemonize the process",
:proc => lambda { |p| true }
option :interval,
:short => "-i SECONDS",
:long => "--interval SECONDS",
:description => "Run chef-client periodically, in seconds",
:proc => lambda { |s| s.to_i }
option :json_attribs,
:short => "-j JSON_ATTRIBS",
:long => "--json-attributes JSON_ATTRIBS",
:description => "Load attributes from a JSON file or URL",
:proc => nil
option :node_name,
:short => "-N NODE_NAME",
:long => "--node-name NODE_NAME",
:description => "The node name for this client",
:proc => nil
option :splay,
:short => "-s SECONDS",
:long => "--splay SECONDS",
:description => "The splay time for running at intervals, in seconds",
:proc => lambda { |s| s.to_i }
option :recipe_url,
:short => "-r RECIPE_URL",
:long => "--recipe-url RECIPE_URL",
:description => "Pull down a remote gzipped tarball of recipes and untar it to the cookbook cache.",
:proc => nil
option :version,
:short => "-v",
:long => "--version",
:description => "Show chef version",
:boolean => true,
:proc => lambda {|v| puts "Chef: #{::Chef::VERSION}"},
:exit => 0
def initialize
super
@chef_solo = nil
@chef_solo_json = nil
end
def reconfigure
super
Chef::Config[:solo] = true
if Chef::Config[:daemonize]
Chef::Config[:interval] ||= 1800
end
if Chef::Config[:json_attribs]
begin
json_io = case Chef::Config[:json_attribs]
when /^(http|https):\/\//
@rest = Chef::REST.new(Chef::Config[:json_attribs], nil, nil)
@rest.get_rest(Chef::Config[:json_attribs], true).open
else
open(Chef::Config[:json_attribs])
end
rescue SocketError => error
Chef::Application.fatal!("I cannot connect to #{Chef::Config[:json_attribs]}", 2)
rescue Errno::ENOENT => error
Chef::Application.fatal!("I cannot find #{Chef::Config[:json_attribs]}", 2)
rescue Errno::EACCES => error
Chef::Application.fatal!("Permissions are incorrect on #{Chef::Config[:json_attribs]}. Please chmod a+r #{Chef::Config[:json_attribs]}", 2)
rescue Exception => error
Chef::Application.fatal!("Got an unexpected error reading #{Chef::Config[:json_attribs]}: #{error.message}", 2)
end
begin
@chef_solo_json = JSON.parse(json_io.read)
json_io.close unless json_io.closed?
rescue JSON::ParserError => error
Chef::Application.fatal!("Could not parse the provided JSON file (#{Chef::Config[:json_attribs]})!: " + error.message, 2)
end
end
if Chef::Config[:recipe_url]
cookbooks_path = Array(Chef::Config[:cookbook_path]).detect{|e| e =~ /\/cookbooks\/*$/ }
recipes_path = File.expand_path(File.join(cookbooks_path, '..'))
target_file = File.join(recipes_path, 'recipes.tgz')
Chef::Log.debug "Creating path #{recipes_path} to extract recipes into"
FileUtils.mkdir_p recipes_path
path = File.join(recipes_path, 'recipes.tgz')
File.open(path, 'wb') do |f|
open(Chef::Config[:recipe_url]) do |r|
f.write(r.read)
end
end
Chef::Mixin::Command.run_command(:command => "tar zxvfC #{path} #{recipes_path}")
end
end
def setup_application
Chef::Daemon.change_privilege
end
def run_application
if Chef::Config[:daemonize]
Chef::Daemon.daemonize("chef-client")
end
loop do
begin
if Chef::Config[:splay]
splay = rand Chef::Config[:splay]
Chef::Log.debug("Splay sleep #{splay} seconds")
sleep splay
end
@chef_solo = Chef::Client.new(@chef_solo_json)
@chef_solo.run
@chef_solo = nil
if Chef::Config[:interval]
Chef::Log.debug("Sleeping for #{Chef::Config[:interval]} seconds")
sleep Chef::Config[:interval]
else
Chef::Application.exit! "Exiting", 0
end
rescue SystemExit => e
raise
rescue Exception => e
if Chef::Config[:interval]
Chef::Log.error("#{e.class}")
Chef::Log.fatal("#{e}\n#{e.backtrace.join("\n")}")
Chef::Log.fatal("Sleeping for #{Chef::Config[:interval]} seconds before trying again")
sleep Chef::Config[:interval]
retry
else
raise
end
ensure
GC.start
end
end
end
end