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#
# Author:: Steven Murawski (<smurawski@chef.io>)
# Copyright:: Copyright (c) Chef Software 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.
#
class Chef
class Application
# These are the exit codes defined in Chef RFC 062
# https://github.com/chef/chef-rfc/blob/master/rfc062-exit-status.md
class ExitCode
require "chef-utils/dist" unless defined?(ChefUtils::Dist)
# -1 is defined as DEPRECATED_FAILURE in RFC 062, so it is
# not enumerated in an active constant.
#
VALID_RFC_062_EXIT_CODES = {
SUCCESS: 0,
GENERIC_FAILURE: 1,
SIGINT_RECEIVED: 2,
SIGTERM_RECEIVED: 3,
REBOOT_SCHEDULED: 35,
REBOOT_NEEDED: 37,
REBOOT_FAILED: 41,
# 42 was used by audit mode and should not be reused
CONFIG_FAILURE: 43,
CLIENT_UPGRADED: 213,
}.freeze
DEPRECATED_RFC_062_EXIT_CODES = {
DEPRECATED_FAILURE: -1,
}.freeze
class << self
def normalize_exit_code(exit_code = nil)
normalized_exit_code = normalize_legacy_exit_code(exit_code)
if valid_exit_codes.include? normalized_exit_code
normalized_exit_code
else
Chef::Log.warn(non_standard_exit_code_warning(normalized_exit_code))
VALID_RFC_062_EXIT_CODES[:GENERIC_FAILURE]
end
end
private
def normalize_legacy_exit_code(exit_code)
case exit_code
when Integer
exit_code
when Exception
lookup_exit_code_by_exception(exit_code)
else
VALID_RFC_062_EXIT_CODES[:GENERIC_FAILURE]
end
end
def lookup_exit_code_by_exception(exception)
if sigint_received?(exception)
VALID_RFC_062_EXIT_CODES[:SIGINT_RECEIVED]
elsif sigterm_received?(exception)
VALID_RFC_062_EXIT_CODES[:SIGTERM_RECEIVED]
elsif reboot_scheduled?(exception)
VALID_RFC_062_EXIT_CODES[:REBOOT_SCHEDULED]
elsif reboot_needed?(exception)
VALID_RFC_062_EXIT_CODES[:REBOOT_NEEDED]
elsif reboot_failed?(exception)
VALID_RFC_062_EXIT_CODES[:REBOOT_FAILED]
elsif configuration_failure?(exception)
VALID_RFC_062_EXIT_CODES[:CONFIG_FAILURE]
elsif client_upgraded?(exception)
VALID_RFC_062_EXIT_CODES[:CLIENT_UPGRADED]
else
VALID_RFC_062_EXIT_CODES[:GENERIC_FAILURE]
end
end
def reboot_scheduled?(exception)
resolve_exception_array(exception).any?(Chef::Exceptions::Reboot)
end
def reboot_needed?(exception)
resolve_exception_array(exception).any?(Chef::Exceptions::RebootPending)
end
def reboot_failed?(exception)
resolve_exception_array(exception).any?(Chef::Exceptions::RebootFailed)
end
def configuration_failure?(exception)
resolve_exception_array(exception).any?(Chef::Exceptions::ConfigurationError)
end
def client_upgraded?(exception)
resolve_exception_array(exception).any?(Chef::Exceptions::ClientUpgraded)
end
def sigint_received?(exception)
resolve_exception_array(exception).any?(Chef::Exceptions::SigInt)
end
def sigterm_received?(exception)
resolve_exception_array(exception).any?(Chef::Exceptions::SigTerm)
end
def resolve_exception_array(exception)
exception_array = [exception]
if exception.respond_to?(:wrapped_errors)
exception.wrapped_errors.each do |e|
exception_array.push e
end
end
exception_array
end
def valid_exit_codes
VALID_RFC_062_EXIT_CODES.values
end
def notify_on_deprecation(message)
Chef.deprecated(:exit_code, message)
rescue Chef::Exceptions::DeprecatedFeatureError
# Have to rescue this, otherwise this unhandled error preempts
# the current exit code assignment.
end
def non_standard_exit_code_warning(exit_code)
"#{ChefUtils::Dist::Infra::CLIENT} attempted to exit with a non-standard exit code of #{exit_code}." \
" The #{ChefUtils::Dist::Infra::PRODUCT} Exit Codes design document (https://github.com/chef/chef-rfc/blob/master/rfc062-exit-status.md)" \
" defines the exit codes that should be used with #{ChefUtils::Dist::Infra::CLIENT}. Chef::Application::ExitCode defines" \
" valid exit codes Non-standard exit codes are redefined as GENERIC_FAILURE."
end
end
end
end
end
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