Class: Chef::Knife

Inherits:
Object
  • Object
show all
Extended by:
Mixin::ConvertToClassName, Forwardable
Includes:
ChefUtils::DSL::PathSanity, Mixlib::CLI
Defined in:
lib/chef/knife.rb,
lib/chef/knife/raw.rb,
lib/chef/knife/ssh.rb,
lib/chef/knife/deps.rb,
lib/chef/knife/diff.rb,
lib/chef/knife/edit.rb,
lib/chef/knife/list.rb,
lib/chef/knife/null.rb,
lib/chef/knife/show.rb,
lib/chef/knife/serve.rb,
lib/chef/knife/xargs.rb,
lib/chef/knife/delete.rb,
lib/chef/knife/rehash.rb,
lib/chef/knife/search.rb,
lib/chef/knife/status.rb,
lib/chef/knife/upload.rb,
lib/chef/knife/core/ui.rb,
lib/chef/knife/download.rb,
lib/chef/knife/key_edit.rb,
lib/chef/knife/key_list.rb,
lib/chef/knife/key_show.rb,
lib/chef/knife/tag_list.rb,
lib/chef/knife/bootstrap.rb,
lib/chef/knife/configure.rb,
lib/chef/knife/node_edit.rb,
lib/chef/knife/node_list.rb,
lib/chef/knife/node_show.rb,
lib/chef/knife/role_edit.rb,
lib/chef/knife/role_list.rb,
lib/chef/knife/role_show.rb,
lib/chef/knife/ssl_check.rb,
lib/chef/knife/ssl_fetch.rb,
lib/chef/knife/user_edit.rb,
lib/chef/knife/user_list.rb,
lib/chef/knife/user_show.rb,
lib/chef/knife/config_get.rb,
lib/chef/knife/key_create.rb,
lib/chef/knife/key_delete.rb,
lib/chef/knife/tag_create.rb,
lib/chef/knife/tag_delete.rb,
lib/chef/knife/client_edit.rb,
lib/chef/knife/client_list.rb,
lib/chef/knife/client_show.rb,
lib/chef/knife/node_create.rb,
lib/chef/knife/node_delete.rb,
lib/chef/knife/role_create.rb,
lib/chef/knife/role_delete.rb,
lib/chef/knife/user_create.rb,
lib/chef/knife/user_delete.rb,
lib/chef/knife/client_create.rb,
lib/chef/knife/client_delete.rb,
lib/chef/knife/cookbook_list.rb,
lib/chef/knife/cookbook_show.rb,
lib/chef/knife/data_bag_edit.rb,
lib/chef/knife/data_bag_list.rb,
lib/chef/knife/data_bag_show.rb,
lib/chef/knife/key_edit_base.rb,
lib/chef/knife/key_list_base.rb,
lib/chef/knife/user_key_edit.rb,
lib/chef/knife/user_key_list.rb,
lib/chef/knife/user_key_show.rb,
lib/chef/knife/node_from_file.rb,
lib/chef/knife/role_from_file.rb,
lib/chef/knife/client_key_edit.rb,
lib/chef/knife/client_key_list.rb,
lib/chef/knife/client_key_show.rb,
lib/chef/knife/cookbook_delete.rb,
lib/chef/knife/cookbook_upload.rb,
lib/chef/knife/data_bag_create.rb,
lib/chef/knife/data_bag_delete.rb,
lib/chef/knife/key_create_base.rb,
lib/chef/knife/node_policy_set.rb,
lib/chef/knife/user_key_create.rb,
lib/chef/knife/user_key_delete.rb,
lib/chef/knife/user_reregister.rb,
lib/chef/knife/configure_client.rb,
lib/chef/knife/core/node_editor.rb,
lib/chef/knife/environment_edit.rb,
lib/chef/knife/environment_list.rb,
lib/chef/knife/environment_show.rb,
lib/chef/knife/node_bulk_delete.rb,
lib/chef/knife/role_bulk_delete.rb,
lib/chef/knife/supermarket_list.rb,
lib/chef/knife/supermarket_show.rb,
lib/chef/knife/client_key_create.rb,
lib/chef/knife/client_key_delete.rb,
lib/chef/knife/client_reregister.rb,
lib/chef/knife/cookbook_download.rb,
lib/chef/knife/cookbook_metadata.rb,
lib/chef/knife/node_run_list_add.rb,
lib/chef/knife/node_run_list_set.rb,
lib/chef/knife/role_run_list_add.rb,
lib/chef/knife/role_run_list_set.rb,
lib/chef/knife/supermarket_share.rb,
lib/chef/knife/client_bulk_delete.rb,
lib/chef/knife/config_get_profile.rb,
lib/chef/knife/config_use_profile.rb,
lib/chef/knife/cookbook_site_list.rb,
lib/chef/knife/cookbook_site_show.rb,
lib/chef/knife/core/object_loader.rb,
lib/chef/knife/data_bag_from_file.rb,
lib/chef/knife/environment_create.rb,
lib/chef/knife/environment_delete.rb,
lib/chef/knife/supermarket_search.rb,
lib/chef/knife/cookbook_site_share.rb,
lib/chef/knife/core/node_presenter.rb,
lib/chef/knife/core/text_formatter.rb,
lib/chef/knife/environment_compare.rb,
lib/chef/knife/role_run_list_clear.rb,
lib/chef/knife/supermarket_install.rb,
lib/chef/knife/supermarket_unshare.rb,
lib/chef/knife/config_list_profiles.rb,
lib/chef/knife/cookbook_bulk_delete.rb,
lib/chef/knife/cookbook_site_search.rb,
lib/chef/knife/core/gem_glob_loader.rb,
lib/chef/knife/node_environment_set.rb,
lib/chef/knife/node_run_list_remove.rb,
lib/chef/knife/role_run_list_remove.rb,
lib/chef/knife/supermarket_download.rb,
lib/chef/knife/cookbook_site_install.rb,
lib/chef/knife/cookbook_site_unshare.rb,
lib/chef/knife/core/status_presenter.rb,
lib/chef/knife/environment_from_file.rb,
lib/chef/knife/role_env_run_list_add.rb,
lib/chef/knife/role_env_run_list_set.rb,
lib/chef/knife/role_run_list_replace.rb,
lib/chef/knife/cookbook_site_download.rb,
lib/chef/knife/core/bootstrap_context.rb,
lib/chef/knife/core/cookbook_scm_repo.rb,
lib/chef/knife/core/generic_presenter.rb,
lib/chef/knife/core/subcommand_loader.rb,
lib/chef/knife/data_bag_secret_options.rb,
lib/chef/knife/role_env_run_list_clear.rb,
lib/chef/knife/bootstrap/client_builder.rb,
lib/chef/knife/role_env_run_list_remove.rb,
lib/chef/knife/bootstrap/train_connector.rb,
lib/chef/knife/role_env_run_list_replace.rb,
lib/chef/knife/core/hashed_command_loader.rb,
lib/chef/knife/cookbook_metadata_from_file.rb,
lib/chef/knife/bootstrap/chef_vault_handler.rb,
lib/chef/knife/core/windows_bootstrap_context.rb

Direct Known Subclasses

ChefFS::Knife, Bootstrap, ClientBulkDelete, ClientCreate, ClientDelete, ClientEdit, ClientKeyCreate, ClientKeyDelete, ClientKeyEdit, ClientKeyList, ClientKeyShow, ClientList, ClientReregister, ClientShow, ConfigGet, ConfigGetProfile, ConfigListProfiles, ConfigUseProfile, Configure, ConfigureClient, CookbookBulkDelete, CookbookDelete, CookbookDownload, CookbookList, CookbookMetadata, CookbookMetadataFromFile, CookbookShow, CookbookUpload, DataBagCreate, DataBagDelete, DataBagEdit, DataBagFromFile, DataBagList, DataBagShow, EnvironmentCompare, EnvironmentCreate, EnvironmentDelete, EnvironmentEdit, EnvironmentFromFile, EnvironmentList, EnvironmentShow, Exec, NodeBulkDelete, NodeCreate, NodeDelete, NodeEdit, NodeEnvironmentSet, NodeFromFile, NodeList, NodePolicySet, NodeRunListAdd, NodeRunListRemove, NodeRunListSet, NodeShow, Null, Raw, RecipeList, Rehash, RoleBulkDelete, RoleCreate, RoleDelete, RoleEdit, RoleEnvRunListAdd, RoleEnvRunListClear, RoleEnvRunListRemove, RoleEnvRunListReplace, RoleEnvRunListSet, RoleFromFile, RoleList, RoleRunListAdd, RoleRunListClear, RoleRunListRemove, RoleRunListReplace, RoleRunListSet, RoleShow, Search, Serve, Ssh, SslCheck, SslFetch, Status, SupermarketDownload, SupermarketInstall, SupermarketList, SupermarketSearch, SupermarketShare, SupermarketShow, SupermarketUnshare, TagCreate, TagDelete, TagList, UserCreate, UserDelete, UserEdit, UserKeyCreate, UserKeyDelete, UserKeyEdit, UserKeyList, UserKeyShow, UserList, UserReregister, UserShow

Defined Under Namespace

Modules: Core, DataBagSecretOptions, KeyCreateBase, KeyEditBase, KeyListBase Classes: Bootstrap, ClientBulkDelete, ClientCreate, ClientDelete, ClientEdit, ClientKeyCreate, ClientKeyDelete, ClientKeyEdit, ClientKeyList, ClientKeyShow, ClientList, ClientReregister, ClientShow, ConfigGet, ConfigGetProfile, ConfigListProfiles, ConfigUseProfile, Configure, ConfigureClient, CookbookBulkDelete, CookbookDelete, CookbookDownload, CookbookList, CookbookMetadata, CookbookMetadataFromFile, CookbookSCMRepo, CookbookShow, CookbookSiteDownload, CookbookSiteInstall, CookbookSiteList, CookbookSiteSearch, CookbookSiteShare, CookbookSiteShow, CookbookSiteUnshare, CookbookUpload, DataBagCreate, DataBagDelete, DataBagEdit, DataBagFromFile, DataBagList, DataBagShow, Delete, Deps, Diff, Download, Edit, EnvironmentCompare, EnvironmentCreate, EnvironmentDelete, EnvironmentEdit, EnvironmentFromFile, EnvironmentList, EnvironmentShow, Exec, KeyCreate, KeyDelete, KeyEdit, KeyList, KeyShow, List, NodeBulkDelete, NodeCreate, NodeDelete, NodeEdit, NodeEditor, NodeEnvironmentSet, NodeFromFile, NodeList, NodePolicySet, NodeRunListAdd, NodeRunListRemove, NodeRunListSet, NodeShow, Null, Raw, RecipeList, Rehash, RoleBulkDelete, RoleCreate, RoleDelete, RoleEdit, RoleEnvRunListAdd, RoleEnvRunListClear, RoleEnvRunListRemove, RoleEnvRunListReplace, RoleEnvRunListSet, RoleFromFile, RoleList, RoleRunListAdd, RoleRunListClear, RoleRunListRemove, RoleRunListReplace, RoleRunListSet, RoleShow, Search, Serve, Show, Ssh, SslCheck, SslFetch, Status, SubcommandLoader, SupermarketDownload, SupermarketInstall, SupermarketList, SupermarketSearch, SupermarketShare, SupermarketShow, SupermarketUnshare, TagCreate, TagDelete, TagList, UI, Upload, UserCreate, UserDelete, UserEdit, UserKeyCreate, UserKeyDelete, UserKeyEdit, UserKeyList, UserKeyShow, UserList, UserReregister, UserShow, Xargs

Constant Summary collapse

OPSCODE_HOSTED_CHEF_ACCESS_CONTROL =

knife acl subcommands are grouped in this category using this constant to verify.

%w{acl group user}.freeze
CHEF_ORGANIZATION_MANAGEMENT =

knife opc subcommands are grouped in this category using this constant to verify.

%w{opc}.freeze
OFFICIAL_PLUGINS = 
%w{lpar openstack push rackspace vcenter}.freeze
@@chef_config_dir =

Shared with subclasses

nil

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Mixin::ConvertToClassName

constantize, convert_to_class_name, convert_to_snake_case, filename_to_qualified_string, normalize_snake_case_name, snake_case_basename

Constructor Details

#initialize(argv = []) ⇒ Knife

Create a new instance of the current class configured for the given arguments and options



306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
 
# File 'lib/chef/knife.rb', line 306

def initialize(argv = [])
  super() # having to call super in initialize is the most annoying anti-pattern :(
  @ui = Chef::Knife::UI.new(STDOUT, STDERR, STDIN, config)

  command_name_words = self.class.snake_case_name.split("_")

  # Mixlib::CLI ignores the embedded name_args
  @name_args = parse_options(argv)
  @name_args.delete(command_name_words.join("-"))
  @name_args.reject! { |name_arg| command_name_words.delete(name_arg) }

  # knife node run_list add requires that we have extra logic to handle
  # the case that command name words could be joined by an underscore :/
  command_name_joined = command_name_words.join("_")
  @name_args.reject! { |name_arg| command_name_joined == name_arg }

  # Similar handling for hyphens.
  command_name_joined = command_name_words.join("-")
  @name_args.reject! { |name_arg| command_name_joined == name_arg }

  if config[:help]
    msg opt_parser
    exit 1
  end

  # Grab a copy before config merge occurs, so that we can later identify
  # whare a given config value is sourced from.
  @original_config = config.dup

  # copy Mixlib::CLI over so that it can be configured in config.rb/knife.rb
  # config file
  Chef::Config[:verbosity] = config[:verbosity] if config[:verbosity]
end

Instance Attribute Details

#name_args ⇒ Object

Returns the value of attribute name_args.



65
66
67
 
# File 'lib/chef/knife.rb', line 65

def name_args
  @name_args
end

#ui ⇒ Object

Returns the value of attribute ui.



66
67
68
 
# File 'lib/chef/knife.rb', line 66

def ui
  @ui
end

Class Method Details

.category(new_category) ⇒ Object

Explicitly set the category for the current command to new_category The category is normally determined from the first word of the command name, but some commands make more sense using two or more words

Examples:

Data bag commands would be in the ‘data’ category by default. To

put them in the 'data bag' category:
category('data bag')

Parameters:

  • new_category (String) —

    value to set the category to (see examples)



122
123
124
 
# File 'lib/chef/knife.rb', line 122

def self.category(new_category)
  @category = new_category
end

.chef_config_dir ⇒ Object 



202
203
204
 
# File 'lib/chef/knife.rb', line 202

def self.chef_config_dir
  @@chef_config_dir ||= config_loader.chef_config_dir
end

.common_name ⇒ Object 



134
135
136
 
# File 'lib/chef/knife.rb', line 134

def self.common_name
  snake_case_name.split("_").join(" ")
end

.config_loader ⇒ Object 



185
186
187
 
# File 'lib/chef/knife.rb', line 185

def self.config_loader
  @config_loader ||= WorkstationConfigLoader.new(nil, Chef::Log)
end

.dependency_loaders ⇒ Object 



232
233
234
 
# File 'lib/chef/knife.rb', line 232

def self.dependency_loaders
  @dependency_loaders ||= []
end

.deps(&block) ⇒ Object 



236
237
238
 
# File 'lib/chef/knife.rb', line 236

def self.deps(&block)
  dependency_loaders << block
end

.guess_category(args) ⇒ Object 



151
152
153
 
# File 'lib/chef/knife.rb', line 151

def self.guess_category(args)
  subcommand_loader.guess_category(args)
end

.inherited(subclass) ⇒ Object 



97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
 
# File 'lib/chef/knife.rb', line 97

def self.inherited(subclass)
  super
  unless subclass.unnamed?
    subcommands[subclass.snake_case_name] = subclass
    subcommand_files[subclass.snake_case_name] +=
      if subclass.superclass.to_s == "Chef::ChefFS::Knife"
        # ChefFS-based commands have a superclass that defines an
        # inhereited method which calls super. This means that the
        # top of the call stack is not the class definition for
        # our subcommand.  Try the second entry in the call stack.
        [path_from_caller(caller[1])]
      else
        [path_from_caller(caller[0])]
      end
  end
end

.list_commands(preferred_category = nil) ⇒ Object 



247
248
249
250
251
252
253
254
255
256
257
258
259
260
 
# File 'lib/chef/knife.rb', line 247

def list_commands(preferred_category = nil)
  category_desc = preferred_category ? preferred_category + " " : ""
  msg "Available #{category_desc}subcommands: (for details, knife SUB-COMMAND --help)\n\n"
  subcommand_loader.list_commands(preferred_category).sort.each do |category, commands|
    next if category =~ /deprecated/i

    msg "** #{category.upcase} COMMANDS **"
    commands.sort.each do |command|
      subcommand_loader.load_command(command)
      msg subcommands[command].banner if subcommands[command]
    end
    msg
  end
end

.load_commands ⇒ Object 



147
148
149
 
# File 'lib/chef/knife.rb', line 147

def self.load_commands
  @commands_loaded ||= subcommand_loader.load_commands
end

.load_config(explicit_config_file, profile) ⇒ Object 



189
190
191
192
193
194
195
196
197
198
199
200
 
# File 'lib/chef/knife.rb', line 189

def self.load_config(explicit_config_file, profile)
  config_loader.explicit_config_file = explicit_config_file
  config_loader.profile = profile
  config_loader.load

  ui.warn("No knife configuration file found. See https://docs.chef.io/config_rb_knife.html for details.") if config_loader.no_config_found?

  config_loader
rescue Exceptions::ConfigurationError => e
  ui.error(ui.color("CONFIGURATION ERROR:", :red) + e.message)
  exit 1
end

.load_deps ⇒ Object 



240
241
242
 
# File 'lib/chef/knife.rb', line 240

def self.load_deps
  dependency_loaders.each(&:call)
end

.msg(msg = "") ⇒ Object 



83
84
85
 
# File 'lib/chef/knife.rb', line 83

def self.msg(msg = "")
  ui.msg(msg)
end

.reset_config_loader! ⇒ Object 



87
88
89
90
 
# File 'lib/chef/knife.rb', line 87

def self.reset_config_loader!
  @@chef_config_dir = nil
  @config_loader = nil
end

.reset_subcommands! ⇒ Object 



92
93
94
95
 
# File 'lib/chef/knife.rb', line 92

def self.reset_subcommands!
  @@subcommands = {}
  @subcommands_by_category = nil
end

.run(args, options = {}) ⇒ Object

Run knife for the given args (ARGV), adding options to the list of CLI options that the subcommand knows how to handle.

Parameters:

  • args (Array) —

    The arguments. Usually ARGV

  • options (Mixlib::CLI option parser hash) (defaults to: {}) —

    These options are how subcommands know about global knife CLI options



213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
 
# File 'lib/chef/knife.rb', line 213

def self.run(args, options = {})
  # Fallback debug logging. Normally the logger isn't configured until we
  # read the config, but this means any logging that happens before the
  # config file is read may be lost. If the KNIFE_DEBUG variable is set, we
  # setup the logger for debug logging to stderr immediately to catch info
  # from early in the setup process.
  if ENV["KNIFE_DEBUG"]
    Chef::Log.init($stderr)
    Chef::Log.level(:debug)
  end

  subcommand_class = subcommand_class_from(args)
  subcommand_class.options = options.merge!(subcommand_class.options)
  subcommand_class.load_deps
  instance = subcommand_class.new(args)
  instance.configure_chef
  instance.run_with_pretty_exceptions
end

.snake_case_name ⇒ Object 



130
131
132
 
# File 'lib/chef/knife.rb', line 130

def self.snake_case_name
  convert_to_snake_case(name.split("::").last) unless unnamed?
end

.subcommand_category ⇒ Object 



126
127
128
 
# File 'lib/chef/knife.rb', line 126

def self.subcommand_category
  @category || snake_case_name.split("_").first unless unnamed?
end

.subcommand_class_from(args) ⇒ Object 



155
156
157
158
159
160
161
162
 
# File 'lib/chef/knife.rb', line 155

def self.subcommand_class_from(args)
  if args.size == 1 && args[0].strip.casecmp("rehash") == 0
    # To prevent issues with the rehash file not pointing to the correct plugins,
    # we always use the glob loader when regenerating the rehash file
    @subcommand_loader = Chef::Knife::SubcommandLoader.gem_glob_loader(chef_config_dir)
  end
  subcommand_loader.command_class_from(args) || subcommand_not_found!(args)
end

.subcommand_files ⇒ Object 



168
169
170
 
# File 'lib/chef/knife.rb', line 168

def self.subcommand_files
  @@subcommand_files ||= Hash.new([])
end

.subcommand_loader ⇒ Object 



143
144
145
 
# File 'lib/chef/knife.rb', line 143

def self.subcommand_loader
  @subcommand_loader ||= Chef::Knife::SubcommandLoader.for_config(chef_config_dir)
end

.subcommands ⇒ Object 



164
165
166
 
# File 'lib/chef/knife.rb', line 164

def self.subcommands
  @@subcommands ||= {}
end

.subcommands_by_category ⇒ Object 



172
173
174
175
176
177
178
179
180
 
# File 'lib/chef/knife.rb', line 172

def self.subcommands_by_category
  unless @subcommands_by_category
    @subcommands_by_category = Hash.new { |hash, key| hash[key] = [] }
    subcommands.each do |snake_cased, klass|
      @subcommands_by_category[klass.subcommand_category] << snake_cased
    end
  end
  @subcommands_by_category
end

.ui ⇒ Object 



79
80
81
 
# File 'lib/chef/knife.rb', line 79

def self.ui
  @ui ||= Chef::Knife::UI.new(STDOUT, STDERR, STDIN, {})
end

.unnamed? ⇒ Boolean

Does this class have a name? (Classes created via Class.new don’t)

Returns:

  • (Boolean) 


139
140
141
 
# File 'lib/chef/knife.rb', line 139

def self.unnamed?
  name.nil? || name.empty?
end

.use_separate_defaults? ⇒ Boolean

Configure mixlib-cli to always separate defaults from user-supplied CLI options

Returns:

  • (Boolean) 


75
76
77
 
# File 'lib/chef/knife.rb', line 75

def self.use_separate_defaults?
  true
end

Instance Method Details

#api_key ⇒ Object 



574
575
576
 
# File 'lib/chef/knife.rb', line 574

def api_key
  Chef::Config[:client_key]
end

#apply_computed_config ⇒ Object

Catch-all method that does any massaging needed for various config components, such as expanding file paths and converting verbosity level into log level.



406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
 
# File 'lib/chef/knife.rb', line 406

def apply_computed_config
  Chef::Config[:color] = config[:color]

  case Chef::Config[:verbosity]
  when 0, nil
    Chef::Config[:log_level] = :warn
  when 1
    Chef::Config[:log_level] = :info
  when 2
    Chef::Config[:log_level] = :debug
  else
    Chef::Config[:log_level] = :trace
  end

  Chef::Config[:log_level] = :trace if ENV["KNIFE_DEBUG"]

  Chef::Config[:node_name]         = config[:node_name]       if config[:node_name]
  Chef::Config[:client_key]        = config[:client_key]      if config[:client_key]
  Chef::Config[:chef_server_url]   = config[:chef_server_url] if config[:chef_server_url]
  Chef::Config[:environment]       = config[:environment]     if config[:environment]

  Chef::Config.local_mode = config[:local_mode] if config.key?(:local_mode)

  Chef::Config.listen = config[:listen] if config.key?(:listen)

  if Chef::Config.local_mode && !Chef::Config.key?(:cookbook_path) && !Chef::Config.key?(:chef_repo_path)
    Chef::Config.chef_repo_path = Chef::Config.find_chef_repo_path(Dir.pwd)
  end
  Chef::Config.chef_zero.host = config[:chef_zero_host] if config[:chef_zero_host]
  Chef::Config.chef_zero.port = config[:chef_zero_port] if config[:chef_zero_port]

  # Expand a relative path from the config directory. Config from command
  # line should already be expanded, and absolute paths will be unchanged.
  if Chef::Config[:client_key] && config[:config_file]
    Chef::Config[:client_key] = File.expand_path(Chef::Config[:client_key], File.dirname(config[:config_file]))
  end

  Mixlib::Log::Formatter.show_time = false
  Chef::Log.init(Chef::Config[:log_location])
  Chef::Log.level(Chef::Config[:log_level] || :error)
end

#cli_keys ⇒ Object

keys from mixlib-cli options



349
350
351
 
# File 'lib/chef/knife.rb', line 349

def cli_keys
  self.class.options.keys
end

#config_file_settings ⇒ Object

extracts the settings from the Chef::Config sub-hash that correspond to knife cli options – in preparation for merging config values with cli values

NOTE: due to weirdness in mixlib-config #has_key? is only true if the value has been set by the user – the Chef::Config defaults return #has_key?() of false and this code DEPENDS on that functionality since applying the default values in Chef::Config would break the defaults in the cli that we would otherwise overwrite.



361
362
363
364
365
366
367
 
# File 'lib/chef/knife.rb', line 361

def config_file_settings
  cli_keys.each_with_object({}) do |key, memo|
    if Chef::Config[:knife].key?(key)
      memo[key] = Chef::Config[:knife][key]
    end
  end
end

#config_source(key) ⇒ Symbol, NilClass

Determine the source of a given configuration key

one of:

- :cli - this was explicitly provided on the CLI
- :config - this came from Chef::Config[:knife]
- :cli_default - came from a declared CLI `option`'s `default` value.
- nil - if the key could not be found in any source.
        This can happen when it is invalid, or has been
        set directly into #config without then calling #merge_config

Returns:

  • (Symbol, NilClass) —

    return the source of the config key,



395
396
397
398
399
400
401
 
# File 'lib/chef/knife.rb', line 395

def config_source(key)
  return :cli if @original_config.include? key
  return :config if config_file_settings.key? key
  return :cli_default if default_config.include? key

  nil
end

#configure_chef ⇒ Object 



448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
 
# File 'lib/chef/knife.rb', line 448

def configure_chef
  # knife needs to send logger output to STDERR by default
  Chef::Config[:log_location] = STDERR
  config_loader = self.class.load_config(config[:config_file], config[:profile])
  config[:config_file] = config_loader.config_location

  # For CLI options like `--config-option key=value`. These have to get
  # parsed and applied separately.
  extra_config_options = config.delete(:config_option)

  merge_configs
  apply_computed_config

  # This has to be after apply_computed_config so that Mixlib::Log is configured
  Chef::Log.info("Using configuration from #{config[:config_file]}") if config[:config_file]

  begin
    Chef::Config.apply_extra_config_options(extra_config_options)
  rescue ChefConfig::UnparsableConfigOption => e
    ui.error e.message
    show_usage
    exit(1)
  end

  Chef::Config.export_proxies
end

#create_object(object, pretty_name = nil, object_class: nil) ⇒ Object

FIXME: yard with @yield



589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
 
# File 'lib/chef/knife.rb', line 589

def create_object(object, pretty_name = nil, object_class: nil)
  output = if object_class
             edit_data(object, object_class: object_class)
           else
             edit_hash(object)
           end

  if Kernel.block_given?
    output = yield(output)
  else
    output.save
  end

  pretty_name ||= output

  msg("Created #{pretty_name}")

  output(output) if config[:print_after]
end

#delete_object(klass, name, delete_name = nil) ⇒ Object

FIXME: yard with @yield



610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
 
# File 'lib/chef/knife.rb', line 610

def delete_object(klass, name, delete_name = nil)
  confirm("Do you really want to delete #{name}")

  if Kernel.block_given?
    object = yield
  else
    object = klass.load(name)
    object.destroy
  end

  output(format_for_display(object)) if config[:print_after]

  obj_name = delete_name ? "#{delete_name}[#{name}]" : object
  msg("Deleted #{obj_name}")
end

#format_rest_error(response) ⇒ Object

Parses JSON from the error response sent by Chef Server and returns the error message – TODO: this code belongs in Chef::REST



582
583
584
585
586
 
# File 'lib/chef/knife.rb', line 582

def format_rest_error(response)
  Array(Chef::JSONCompat.from_json(response.body)["error"]).join("; ")
rescue Exception
  response.body
end

#humanize_exception(e) ⇒ Object 



495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
 
# File 'lib/chef/knife.rb', line 495

def humanize_exception(e)
  case e
  when SystemExit
    raise # make sure exit passes through.
  when Net::HTTPClientException, Net::HTTPFatalError
    humanize_http_exception(e)
  when OpenSSL::SSL::SSLError
    ui.error "Could not establish a secure connection to the server."
    ui.info "Use `knife ssl check` to troubleshoot your SSL configuration."
    ui.info "If your server uses a self-signed certificate, you can use"
    ui.info "`knife ssl fetch` to make knife trust the server's certificates."
    ui.info ""
    ui.info  "Original Exception: #{e.class.name}: #{e.message}"
  when Errno::ECONNREFUSED, Timeout::Error, Errno::ETIMEDOUT, SocketError
    ui.error "Network Error: #{e.message}"
    ui.info "Check your knife configuration and network settings"
  when NameError, NoMethodError
    ui.error "knife encountered an unexpected error"
    ui.info  "This may be a bug in the '#{self.class.common_name}' knife command or plugin"
    ui.info  "Please collect the output of this command with the `-VVV` option before filing a bug report."
    ui.info  "Exception: #{e.class.name}: #{e.message}"
  when Chef::Exceptions::PrivateKeyMissing
    ui.error "Your private key could not be loaded from #{api_key}"
    ui.info  "Check your configuration file and ensure that your private key is readable"
  when Chef::Exceptions::InvalidRedirect
    ui.error "Invalid Redirect: #{e.message}"
    ui.info  "Change your server location in config.rb/knife.rb to the server's FQDN to avoid unwanted redirections."
  else
    ui.error "#{e.class.name}: #{e.message}"
  end
end

#humanize_http_exception(e) ⇒ Object 



527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
 
# File 'lib/chef/knife.rb', line 527

def humanize_http_exception(e)
  response = e.response
  case response
  when Net::HTTPUnauthorized
    ui.error "Failed to authenticate to #{server_url} as #{username} with key #{api_key}"
    ui.info "Response:  #{format_rest_error(response)}"
  when Net::HTTPForbidden
    ui.error "You authenticated successfully to #{server_url} as #{username} but you are not authorized for this action."
    proxy_env_vars = ENV.to_hash.keys.map(&:downcase) & %w{http_proxy https_proxy ftp_proxy socks_proxy no_proxy}
    unless proxy_env_vars.empty?
      ui.error "There are proxy servers configured, your server url may need to be added to NO_PROXY."
    end
    ui.info "Response:  #{format_rest_error(response)}"
  when Net::HTTPBadRequest
    ui.error "The data in your request was invalid"
    ui.info "Response: #{format_rest_error(response)}"
  when Net::HTTPNotFound
    ui.error "The object you are looking for could not be found"
    ui.info "Response: #{format_rest_error(response)}"
  when Net::HTTPInternalServerError
    ui.error "internal server error"
    ui.info "Response: #{format_rest_error(response)}"
  when Net::HTTPBadGateway
    ui.error "bad gateway"
    ui.info "Response: #{format_rest_error(response)}"
  when Net::HTTPServiceUnavailable
    ui.error "Service temporarily unavailable"
    ui.info "Response: #{format_rest_error(response)}"
  when Net::HTTPNotAcceptable
    version_header = Chef::JSONCompat.from_json(response["x-ops-server-api-version"])
    client_api_version = version_header["request_version"]
    min_server_version = version_header["min_version"]
    max_server_version = version_header["max_version"]
    ui.error "The API version that Knife is using is not supported by the server you sent this request to."
    ui.info "The request that Knife sent was using API version #{client_api_version}."
    ui.info "The server you sent the request to supports a min API verson of #{min_server_version} and a max API version of #{max_server_version}."
    ui.info "Please either update your #{Chef::Dist::PRODUCT} or the server to be a compatible set."
  else
    ui.error response.message
    ui.info "Response: #{format_rest_error(response)}"
  end
end

#maybe_setup_fips ⇒ Object 



654
655
656
657
658
659
 
# File 'lib/chef/knife.rb', line 654

def maybe_setup_fips
  unless config[:fips].nil?
    Chef::Config[:fips] = config[:fips]
  end
  Chef::Config.init_openssl
end

#merge_configs ⇒ Object

config is merged in this order (inverse of precedence)

default_config       - mixlib-cli defaults (accessor from the mixin)
config_file_settings - Chef::Config[:knife] sub-hash
config               - mixlib-cli settings (accessor from the mixin)



373
374
375
376
377
378
379
380
381
 
# File 'lib/chef/knife.rb', line 373

def merge_configs
  # Update our original_config - if someone has created a knife command
  # instance directly, they are likely ot have set cmd.config values directly
  # as well, at which point our saved original config is no longer up to date.
  @original_config = config.dup
  # other code may have a handle to the config object, so use Hash#replace to deliberately
  # update-in-place.
  config.replace(default_config.merge(config_file_settings).merge(config))
end

#noauth_rest ⇒ Object 



643
644
645
646
647
648
 
# File 'lib/chef/knife.rb', line 643

def noauth_rest
  @rest ||= begin
    require_relative "http/simple_json"
    Chef::HTTP::SimpleJSON.new(Chef::Config[:chef_server_url])
  end
end

#parse_options(args) ⇒ Object 



340
341
342
343
344
345
346
 
# File 'lib/chef/knife.rb', line 340

def parse_options(args)
  super
rescue OptionParser::InvalidOption => e
  puts "Error: " + e.to_s
  show_usage
  exit(1)
end

#rest ⇒ Object 



636
637
638
639
640
641
 
# File 'lib/chef/knife.rb', line 636

def rest
  @rest ||= begin
    require_relative "server_api"
    Chef::ServerAPI.new(Chef::Config[:chef_server_url])
  end
end

#run_with_pretty_exceptions(raise_exception = false) ⇒ Object 



479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
 
# File 'lib/chef/knife.rb', line 479

def run_with_pretty_exceptions(raise_exception = false)
  unless respond_to?(:run)
    ui.error "You need to add a #run method to your knife command before you can use it"
  end
  ENV["PATH"] = sanitized_path if Chef::Config[:enforce_path_sanity]
  maybe_setup_fips
  Chef::LocalMode.with_server_connectivity do
    run
  end
rescue Exception => e
  raise if raise_exception || ( Chef::Config[:verbosity] && Chef::Config[:verbosity] >= 2 )

  humanize_exception(e)
  exit 100
end

#server_url ⇒ Object 



650
651
652
 
# File 'lib/chef/knife.rb', line 650

def server_url
  Chef::Config[:chef_server_url]
end

#show_usage ⇒ Object 



475
476
477
 
# File 'lib/chef/knife.rb', line 475

def show_usage
  stdout.puts("USAGE: " + opt_parser.to_s)
end

#test_mandatory_field(field, fieldname) ⇒ Object

helper method for testing if a field exists and returning the usage and proper error if not



628
629
630
631
632
633
634
 
# File 'lib/chef/knife.rb', line 628

def test_mandatory_field(field, fieldname)
  if field.nil?
    show_usage
    ui.fatal("You must specify a #{fieldname}")
    exit 1
  end
end

#username ⇒ Object 



570
571
572
 
# File 'lib/chef/knife.rb', line 570

def username
  Chef::Config[:node_name]
end