/usr/lib/ruby/vendor_ruby/berkshelf/api/application.rb is in berkshelf-api 2.2.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Berkshelf::API::Application.shutdown
end
trap 'TERM' do
Berkshelf::API::Application.shutdown
end
module Berkshelf::API
class ApplicationSupervisor < Celluloid::SupervisionGroup
# @option options [Boolean] :disable_http (false)
# run the application without the rest gateway
def initialize(registry, options = {})
super(registry)
supervise_as(:cache_manager, Berkshelf::API::CacheManager)
supervise_as(:cache_builder, Berkshelf::API::CacheBuilder)
unless options[:disable_http]
require_relative 'rest_gateway'
supervise_as(:rest_gateway, Berkshelf::API::RESTGateway, options)
end
end
end
module Application
class << self
extend Forwardable
include Berkshelf::API::Logging
include Berkshelf::API::Mixin::Services
attr_reader :start_time
def_delegators :registry, :[], :[]=
# @return [Berkshelf::API::Config]
def config
@config ||= begin
Berkshelf::API::Config.from_file(Berkshelf::API::Config.default_path)
rescue
Berkshelf::API::Config.new
end
end
# @param [Berkshelf::API::Config] config
def set_config(config)
@config = config
end
# Configure the application
#
# @option options [String] :config_file
# filepath to a configuration file to use
# @option options [String, Fixnum] :log_location (STDOUT)
# @option options [String, nil] :log_level ("INFO")
# - "DEBUG
# - "INFO"
# - "WARN"
# - "ERROR"
# - "FATAL"
#
# @raise [Berkshelf::API::ConfigNotFoundError]
#
# @return [Berkshelf::API::Config]
def configure(options = {})
unless options[:config_file].nil?
set_config Berkshelf::API::Config.from_file(options[:config_file])
end
configure_logger(options)
config
rescue Buff::Errors::ConfigNotFound => ex
raise ConfigNotFoundError, ex
end
# @option options [String, Fixnum] :log_location (STDOUT)
# @option options [String, nil] :log_level ("INFO")
# - "DEBUG
# - "INFO"
# - "WARN"
# - "ERROR"
# - "FATAL"
def configure_logger(options = {})
Logging.init(level: options[:log_level], location: options[:log_location])
end
# @return [String]
def home_path
ENV['BERKSHELF_API_PATH'] || config.home_path
end
# Retrieve the running instance of the Application
#
# @raise [Berkshelf::API::NotStartedError]
#
# @return [Berkshelf::API::Application]
def instance
return @instance if @instance
raise NotStartedError, "application not running"
end
# The Actor registry for Berkshelf::API.
#
# @note Berkshelf::API uses it's own registry instead of Celluloid::Registry.root to
# avoid conflicts in the larger namespace. Use Berkshelf::API::Application[] to access Berkshelf::API
# actors instead of Celluloid::Actor[].
#
# @return [Celluloid::Registry]
def registry
@registry ||= Celluloid::Registry.new
end
# Run the application in the foreground (sleep on main thread)
#
# @option options [Boolean] :disable_http (false)
# run the application without the rest gateway
def run(options = {})
@start_time = Time.now.utc
loop do
supervisor = run!(options)
while supervisor.alive?
sleep 0.1
instance.terminate if @shutdown
end
break if @shutdown
log.error "!!! #{self} crashed. Restarting..."
end
end
# Run the application in the background
#
# @option options [Boolean] :disable_http (false)
# run the application without the rest gateway
# @option options [Boolean] :eager_build (false)
# automatically begin and loop all cache builders
#
# @return [Berkshelf::API::Application]
def run!(options = {})
options = { disable_http: false, eager_build: false }.merge(options)
configure(options)
@instance = ApplicationSupervisor.new(registry, options)
cache_builder.async(:build_loop) if options[:eager_build]
@instance
end
# @return [Boolean]
def running?
instance.alive?
rescue NotStartedError
false
end
# Shutdown the running instance
#
# @raise [Berkshelf::API::NotStartedError]
# if there is no running instance
def shutdown
@shutdown = true
end
end
end
end
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