Class: Chef::Provider::Group

Inherits:
Chef::Provider show all
Includes:
Mixin::ShellOut
Defined in:
lib/chef/provider/group.rb,
lib/chef/provider/group/pw.rb,
lib/chef/provider/group/aix.rb,
lib/chef/provider/group/dscl.rb,
lib/chef/provider/group/suse.rb,
lib/chef/provider/group/gpasswd.rb,
lib/chef/provider/group/usermod.rb,
lib/chef/provider/group/windows.rb,
lib/chef/provider/group/groupadd.rb,
lib/chef/provider/group/groupmod.rb

Direct Known Subclasses

Dscl, Groupadd, Groupmod, Pw, Windows

Defined Under Namespace

Classes: Aix, Dscl, Gpasswd, Groupadd, Groupmod, Pw, Suse, Usermod, Windows

Instance Attribute Summary collapse

Attributes inherited from Chef::Provider

#action, #cookbook_name, #current_resource, #new_resource, #recipe_name, #run_context

Instance Method Summary collapse

Methods included from Mixin::ShellOut

#a_to_s, #clean_array, #shell_out, #shell_out!, #shell_out_compact, #shell_out_compact!, #shell_out_compact_timeout, #shell_out_compact_timeout!, #shell_out_with_systems_locale, #shell_out_with_systems_locale!

Methods included from Mixin::PathSanity

#enforce_path_sanity, #sanitized_path

Methods inherited from Chef::Provider

action, #action_nothing, #check_resource_semantics!, #cleanup_after_converge, #compile_and_converge_action, #converge_by, #converge_if_changed, #events, include_resource_dsl?, include_resource_dsl_module, #node, #process_resource_requirements, provides, provides?, #requirements, #resource_collection, #resource_updated?, #run_action, #set_updated_status, supports?, use_inline_resources, #whyrun_mode?, #whyrun_supported?

Methods included from Mixin::Provides

#provided_as, #provides, #provides?

Methods included from Mixin::DescendantsTracker

#descendants, descendants, #direct_descendants, direct_descendants, #find_descendants_by_name, find_descendants_by_name, #inherited, store_inherited

Methods included from Mixin::LazyModuleInclude

#descendants, #include, #included

Methods included from Mixin::NotifyingBlock

#notifying_block, #subcontext_block

Methods included from DSL::DeclareResource

#build_resource, #declare_resource, #delete_resource, #delete_resource!, #edit_resource, #edit_resource!, #find_resource, #find_resource!, #with_run_context

Methods included from Mixin::PowershellOut

#powershell_out, #powershell_out!

Methods included from Mixin::WindowsArchitectureHelper

#assert_valid_windows_architecture!, #disable_wow64_file_redirection, #forced_32bit_override_required?, #is_i386_process_on_x86_64_windows?, #node_supports_windows_architecture?, #node_windows_architecture, #restore_wow64_file_redirection, #valid_windows_architecture?, #with_os_architecture, #wow64_architecture_override_required?, #wow64_directory

Methods included from DSL::PlatformIntrospection

#docker?, #platform?, #platform_family?, #value_for_platform, #value_for_platform_family

Constructor Details

#initialize(new_resource, run_context) ⇒ Group

Returns a new instance of Group.


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# File 'lib/chef/provider/group.rb', line 30

def initialize(new_resource, run_context)
  super
  @group_exists = true
end

Instance Attribute Details

#change_desc ⇒ Object

Returns the value of attribute change_desc


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# File 'lib/chef/provider/group.rb', line 28

def change_desc
  @change_desc
end

#group_exists ⇒ Object

Returns the value of attribute group_exists


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# File 'lib/chef/provider/group.rb', line 27

def group_exists
  @group_exists
end

Instance Method Details

#action_create ⇒ Object 


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# File 'lib/chef/provider/group.rb', line 124

def action_create
  case @group_exists
  when false
    converge_by("create group #{new_resource.group_name}") do
      create_group
      Chef::Log.info("#{new_resource} created")
    end
  else
    if compare_group
      converge_by(["alter group #{new_resource.group_name}"] + change_desc) do
        manage_group
        Chef::Log.info("#{new_resource} altered")
      end
    end
  end
end

#action_manage ⇒ Object 


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# File 'lib/chef/provider/group.rb', line 149

def action_manage
  return unless @group_exists && compare_group
  converge_by(["manage group #{new_resource.group_name}"] + change_desc) do
    manage_group
    Chef::Log.info("#{new_resource} managed")
  end
end

#action_modify ⇒ Object 


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# File 'lib/chef/provider/group.rb', line 157

def action_modify
  return unless compare_group
  converge_by(["modify group #{new_resource.group_name}"] + change_desc) do
    manage_group
    Chef::Log.info("#{new_resource} modified")
  end
end

#action_remove ⇒ Object 


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# File 'lib/chef/provider/group.rb', line 141

def action_remove
  return unless @group_exists
  converge_by("remove group #{new_resource.group_name}") do
    remove_group
    Chef::Log.info("#{new_resource} removed")
  end
end

#compare_group ⇒ Object

Check to see if a group needs any changes. Populate ==== Returns :: If a change is required :: If a change is not required


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# File 'lib/chef/provider/group.rb', line 81

def compare_group
  @change_desc = [ ]
  if new_resource.gid.to_s != current_resource.gid.to_s
    @change_desc << "change gid #{current_resource.gid} to #{new_resource.gid}"
  end

  if new_resource.append
    missing_members = []
    new_resource.members.each do |member|
      next if has_current_group_member?(member)
      validate_member!(member)
      missing_members << member
    end
    unless missing_members.empty?
      @change_desc << "add missing member(s): #{missing_members.join(', ')}"
    end

    members_to_be_removed = []
    new_resource.excluded_members.each do |member|
      if has_current_group_member?(member)
        members_to_be_removed << member
      end
    end
    unless members_to_be_removed.empty?
      @change_desc << "remove existing member(s): #{members_to_be_removed.join(', ')}"
    end
  elsif new_resource.members != current_resource.members
    @change_desc << "replace group members with new list of members"
  end

  !@change_desc.empty?
end

#create_group ⇒ Object

Raises:

  • (NotImplementedError) 

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# File 'lib/chef/provider/group.rb', line 165

def create_group
  raise NotImplementedError, "subclasses of Chef::Provider::Group should define #create_group"
end

#define_resource_requirements ⇒ Object 


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# File 'lib/chef/provider/group.rb', line 56

def define_resource_requirements
  requirements.assert(:modify) do |a|
    a.assertion { @group_exists }
    a.failure_message(Chef::Exceptions::Group, "Cannot modify #{new_resource} - group does not exist!")
    a.whyrun("Group #{new_resource} does not exist. Unless it would have been created earlier in this run, this attempt to modify it would fail.")
  end

  requirements.assert(:all_actions) do |a|
    # Make sure that the resource doesn't contain any common
    # user names in the members and exclude_members properties.
    if !new_resource.members.nil? && !new_resource.excluded_members.nil?
      common_members = new_resource.members & new_resource.excluded_members
      a.assertion { common_members.empty? }
      a.failure_message(Chef::Exceptions::ConflictingMembersInGroup, "Attempting to both add and remove users from a group: '#{common_members.join(', ')}'")
      # No why-run alternative
    end
  end
end

#has_current_group_member?(member) ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/chef/provider/group.rb', line 114

def has_current_group_member?(member)
  current_resource.members.include?(member)
end

#load_current_resource ⇒ Object 


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# File 'lib/chef/provider/group.rb', line 35

def load_current_resource
  @current_resource = Chef::Resource::Group.new(new_resource.name)
  current_resource.group_name(new_resource.group_name)

  group_info = nil
  begin
    group_info = Etc.getgrnam(new_resource.group_name)
  rescue ArgumentError
    @group_exists = false
    Chef::Log.debug("#{new_resource} group does not exist")
  end

  if group_info
    new_resource.gid(group_info.gid) unless new_resource.gid
    current_resource.gid(group_info.gid)
    current_resource.members(group_info.mem)
  end

  current_resource
end

#manage_group ⇒ Object

Raises:

  • (NotImplementedError) 

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# File 'lib/chef/provider/group.rb', line 169

def manage_group
  raise NotImplementedError, "subclasses of Chef::Provider::Group should define #manage_group"
end

#remove_group ⇒ Object

Raises:

  • (NotImplementedError) 

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# File 'lib/chef/provider/group.rb', line 173

def remove_group
  raise NotImplementedError, "subclasses of Chef::Provider::Group should define #remove_group"
end

#validate_member!(member) ⇒ Object 


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# File 'lib/chef/provider/group.rb', line 118

def validate_member!(member)
  # Sub-classes can do any validation if needed
  # and raise an error if validation fails
  true
end