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#
# Author:: AJ Christensen (<aj@chef.io>)
# Copyright:: Copyright 2008-2016, 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 Provider
class Group
class Groupadd < Chef::Provider::Group
def required_binaries
[ "/usr/sbin/groupadd",
"/usr/sbin/groupmod",
"/usr/sbin/groupdel" ]
end
def load_current_resource
super
end
def define_resource_requirements
super
required_binaries.each do |required_binary|
requirements.assert(:all_actions) do |a|
a.assertion { ::File.exists?(required_binary) }
a.failure_message Chef::Exceptions::Group, "Could not find binary #{required_binary} for #{@new_resource}"
# No whyrun alternative: this component should be available in the base install of any given system that uses it
end
end
end
# Create the group
def create_group
command = "groupadd"
command << set_options
command << groupadd_options
run_command(:command => command)
modify_group_members
end
# Manage the group when it already exists
def manage_group
command = "groupmod"
command << set_options
run_command(:command => command)
modify_group_members
end
# Remove the group
def remove_group
run_command(:command => "groupdel #{@new_resource.group_name}")
end
def modify_group_members
if @new_resource.append
if @new_resource.members && !@new_resource.members.empty?
members_to_be_added = [ ]
@new_resource.members.each do |member|
members_to_be_added << member if !@current_resource.members.include?(member)
end
members_to_be_added.each do |member|
Chef::Log.debug("#{@new_resource} appending member #{member} to group #{@new_resource.group_name}")
add_member(member)
end
end
if @new_resource.excluded_members && !@new_resource.excluded_members.empty?
members_to_be_removed = [ ]
@new_resource.excluded_members.each do |member|
members_to_be_removed << member if @current_resource.members.include?(member)
end
members_to_be_removed.each do |member|
Chef::Log.debug("#{@new_resource} removing member #{member} from group #{@new_resource.group_name}")
remove_member(member)
end
end
else
members_description = @new_resource.members.empty? ? "none" : @new_resource.members.join(", ")
Chef::Log.debug("#{@new_resource} setting group members to: #{members_description}")
set_members(@new_resource.members)
end
end
def add_member(member)
raise Chef::Exceptions::Group, "you must override add_member in #{self}"
end
def remove_member(member)
raise Chef::Exceptions::Group, "you must override remove_member in #{self}"
end
def set_members(members)
raise Chef::Exceptions::Group, "you must override set_members in #{self}"
end
# Little bit of magic as per Adam's useradd provider to pull the assign the command line flags
#
# ==== Returns
# <string>:: A string containing the option and then the quoted value
def set_options
opts = ""
{ :gid => "-g" }.sort { |a,b| a[0] <=> b[0] }.each do |field, option|
if @current_resource.send(field) != @new_resource.send(field)
if @new_resource.send(field)
opts << " #{option} '#{@new_resource.send(field)}'"
Chef::Log.debug("#{@new_resource} set #{field} to #{@new_resource.send(field)}")
end
end
end
opts << " #{@new_resource.group_name}"
end
def groupadd_options
opts = ""
opts << " -r" if @new_resource.system
opts << " -o" if @new_resource.non_unique
opts
end
end
end
end
end
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