Class: Puppet::Application::Agent
- Inherits:
-
Puppet::Application
- Object
- Puppet::Application
- Puppet::Application::Agent
- Defined in:
- lib/puppet/application/agent.rb
Constant Summary
Constants inherited from Puppet::Application
Constants included from Util
Util::AbsolutePathPosix, Util::AbsolutePathWindows, Util::DEFAULT_POSIX_MODE, Util::DEFAULT_WINDOWS_MODE, Util::RFC_3986_URI_REGEX
Constants included from Util::POSIX
Util::POSIX::LOCALE_ENV_VARS, Util::POSIX::USER_ENV_VARS
Constants included from Util::SymbolicFileMode
Util::SymbolicFileMode::SetGIDBit, Util::SymbolicFileMode::SetUIDBit, Util::SymbolicFileMode::StickyBit, Util::SymbolicFileMode::SymbolicMode, Util::SymbolicFileMode::SymbolicSpecialToBit
Instance Attribute Summary
Attributes inherited from Puppet::Application
Instance Method Summary collapse
- #app_defaults ⇒ Object
- #fingerprint ⇒ Object
- #help ⇒ Object
- #main(daemon) ⇒ Object
- #onetime(daemon) ⇒ Object
- #preinit ⇒ Object
- #run_command ⇒ Object
- #setup ⇒ Object
-
#setup_test ⇒ Object
Enable all of the most common test options.
- #summary ⇒ Object
Methods inherited from Puppet::Application
[], available_application_names, banner, clear!, clear?, clear_everything_for_tests, #configure_indirector_routes, controlled_run, #deprecate, #deprecated?, environment_mode, exit, find, get_environment_mode, #handle_logdest_arg, #handlearg, #initialize, #initialize_app_defaults, interrupted?, #log_runtime_environment, #name, option, option_parser_commands, #parse_options, restart!, restart_requested?, #run, run_mode, #set_log_level, #setup_logs, stop!, stop_requested?, try_load_class
Methods included from Util
absolute_path?, benchmark, chuser, clear_environment, default_env, deterministic_rand, deterministic_rand_int, exit_on_fail, get_env, get_environment, logmethods, merge_environment, path_to_uri, pretty_backtrace, replace_file, safe_posix_fork, set_env, symbolizehash, thinmark, uri_encode, uri_query_encode, uri_to_path, which, withenv, withumask
Methods included from Util::POSIX
#get_posix_field, #gid, groups_of, #idfield, #methodbyid, #methodbyname, #search_posix_field, #uid
Methods included from Util::SymbolicFileMode
#normalize_symbolic_mode, #symbolic_mode_to_int, #valid_symbolic_mode?
Constructor Details
This class inherits a constructor from Puppet::Application
Instance Method Details
#app_defaults ⇒ Object
12 13 14 15 16 17 18 19 |
# File 'lib/puppet/application/agent.rb', line 12 def app_defaults super.merge({ :catalog_terminus => :rest, :catalog_cache_terminus => :json, :node_terminus => :rest, :facts_terminus => :facter, }) end |
#fingerprint ⇒ Object
360 361 362 363 364 365 366 367 |
# File 'lib/puppet/application/agent.rb', line 360 def fingerprint sm = Puppet::SSL::StateMachine.new(onetime: true) ssl_context = sm.ensure_client_certificate puts Puppet::SSL::Digest.new([:digest].to_s, ssl_context.client_cert.to_der).to_s rescue $stderr.puts _("Fingerprint asked but no certificate nor certificate request have yet been issued") exit(1) end |
#help ⇒ Object
85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 |
# File 'lib/puppet/application/agent.rb', line 85 def help <<-HELP puppet-agent(8) -- #{summary} ======== SYNOPSIS -------- Retrieves the client configuration from the puppet master and applies it to the local host. This service may be run as a daemon, run periodically using cron (or something similar), or run interactively for testing purposes. USAGE ----- puppet agent [--certname <NAME>] [-D|--daemonize|--no-daemonize] [-d|--debug] [--detailed-exitcodes] [--digest <DIGEST>] [--disable [MESSAGE]] [--enable] [--fingerprint] [-h|--help] [-l|--logdest syslog|eventlog|<ABS FILEPATH>|console] [--masterport <PORT>] [--noop] [-o|--onetime] [--sourceaddress <IP_ADDRESS>] [-t|--test] [-v|--verbose] [-V|--version] [-w|--waitforcert <SECONDS>] DESCRIPTION ----------- This is the main puppet client. Its job is to retrieve the local machine's configuration from a remote server and apply it. In order to successfully communicate with the remote server, the client must have a certificate signed by a certificate authority that the server trusts; the recommended method for this, at the moment, is to run a certificate authority as part of the puppet server (which is the default). The client will connect and request a signed certificate, and will continue connecting until it receives one. Once the client has a signed certificate, it will retrieve its configuration and apply it. USAGE NOTES ----------- 'puppet agent' does its best to find a compromise between interactive use and daemon use. Run with no arguments and no configuration, it will go into the background, attempt to get a signed certificate, and retrieve and apply its configuration every 30 minutes. Some flags are meant specifically for interactive use -- in particular, 'test', 'tags' and 'fingerprint' are useful. '--test' does a single run in the foreground with verbose logging, then exits. It will also exit if it can't get a valid catalog. The exit code after running with '--test' is 0 if the catalog was successfully applied, and 1 if the run either failed or wasn't attempted (due to another run already in progress). '--tags' allows you to specify what portions of a configuration you want to apply. Puppet elements are tagged with all of the class or definition names that contain them, and you can use the 'tags' flag to specify one of these names, causing only configuration elements contained within that class or definition to be applied. This is very useful when you are testing new configurations -- for instance, if you are just starting to manage 'ntpd', you would put all of the new elements into an 'ntpd' class, and call puppet with '--tags ntpd', which would only apply that small portion of the configuration during your testing, rather than applying the whole thing. '--fingerprint' is a one-time flag. In this mode 'puppet agent' will run once and display on the console (and in the log) the current certificate (or certificate request) fingerprint. Providing the '--digest' option allows to use a different digest algorithm to generate the fingerprint. The main use is to verify that before signing a certificate request on the master, the certificate request the master received is the same as the one the client sent (to prevent against man-in-the-middle attacks when signing certificates). OPTIONS ------- Note that any Puppet setting that's valid in the configuration file is also a valid long argument. For example, 'server' is a valid setting, so you can specify '--server <servername>' as an argument. Boolean settings translate into '--setting' and '--no-setting' pairs. See the configuration file documentation at https://puppet.com/docs/puppet/latest/configuration.html for the full list of acceptable settings. A commented list of all settings can also be generated by running puppet agent with '--genconfig'. * --certname: Set the certname (unique ID) of the client. The master reads this unique identifying string, which is usually set to the node's fully-qualified domain name, to determine which configurations the node will receive. Use this option to debug setup problems or implement unusual node identification schemes. (This is a Puppet setting, and can go in puppet.conf.) * --daemonize: Send the process into the background. This is the default. (This is a Puppet setting, and can go in puppet.conf. Note the special 'no-' prefix for boolean settings on the command line.) * --no-daemonize: Do not send the process into the background. (This is a Puppet setting, and can go in puppet.conf. Note the special 'no-' prefix for boolean settings on the command line.) * --debug: Enable full debugging. * --detailed-exitcodes: Provide extra information about the run via exit codes; only works if '--test' or '--onetime' is also specified. If enabled, 'puppet agent' will use the following exit codes: 0: The run succeeded with no changes or failures; the system was already in the desired state. 1: The run failed, or wasn't attempted due to another run already in progress. 2: The run succeeded, and some resources were changed. 4: The run succeeded, and some resources failed. 6: The run succeeded, and included both changes and failures. * --digest: Change the certificate fingerprinting digest algorithm. The default is SHA256. Valid values depends on the version of OpenSSL installed, but will likely contain MD5, MD2, SHA1 and SHA256. * --disable: Disable working on the local system. This puts a lock file in place, causing 'puppet agent' not to work on the system until the lock file is removed. This is useful if you are testing a configuration and do not want the central configuration to override the local state until everything is tested and committed. Disable can also take an optional message that will be reported by the 'puppet agent' at the next disabled run. 'puppet agent' uses the same lock file while it is running, so no more than one 'puppet agent' process is working at a time. 'puppet agent' exits after executing this. * --enable: Enable working on the local system. This removes any lock file, causing 'puppet agent' to start managing the local system again (although it will continue to use its normal scheduling, so it might not start for another half hour). 'puppet agent' exits after executing this. * --fingerprint: Display the current certificate or certificate signing request fingerprint and then exit. Use the '--digest' option to change the digest algorithm used. * --help: Print this help message * --job-id: Attach the specified job id to the catalog request and the report used for this agent run. This option only works when '--onetime' is used. * --logdest: Where to send log messages. Choose between 'syslog' (the POSIX syslog service), 'eventlog' (the Windows Event Log), 'console', or the path to a log file. If debugging or verbosity is enabled, this defaults to 'console'. Otherwise, it defaults to 'syslog' on POSIX systems and 'eventlog' on Windows. A path ending with '.json' will receive structured output in JSON format. The log file will not have an ending ']' automatically written to it due to the appending nature of logging. It must be appended manually to make the content valid JSON. A path ending with '.jsonl' will receive structured output in JSON Lines format. * --masterport: The port on which to contact the puppet master. (This is a Puppet setting, and can go in puppet.conf.) * --noop: Use 'noop' mode where the daemon runs in a no-op or dry-run mode. This is useful for seeing what changes Puppet will make without actually executing the changes. (This is a Puppet setting, and can go in puppet.conf. Note the special 'no-' prefix for boolean settings on the command line.) * --onetime: Run the configuration once. Runs a single (normally daemonized) Puppet run. Useful for interactively running puppet agent when used in conjunction with the --no-daemonize option. (This is a Puppet setting, and can go in puppet.conf. Note the special 'no-' prefix for boolean settings on the command line.) * --sourceaddress: Set the source IP address for transactions. This defaults to automatically selected. (This is a Puppet setting, and can go in puppet.conf.) * --test: Enable the most common options used for testing. These are 'onetime', 'verbose', 'no-daemonize', 'no-usecacheonfailure', 'detailed-exitcodes', 'no-splay', and 'show_diff'. * --verbose: Turn on verbose reporting. * --version: Print the puppet version number and exit. * --waitforcert: This option only matters for daemons that do not yet have certificates and it is enabled by default, with a value of 120 (seconds). This causes 'puppet agent' to connect to the server every 2 minutes and ask it to sign a certificate request. This is useful for the initial setup of a puppet client. You can turn off waiting for certificates by specifying a time of 0. (This is a Puppet setting, and can go in puppet.conf. Note the special 'no-' prefix for boolean settings on the command line.) EXAMPLE ------- $ puppet agent --server puppet.domain.com DIAGNOSTICS ----------- Puppet agent accepts the following signals: * SIGHUP: Restart the puppet agent daemon. * SIGINT and SIGTERM: Shut down the puppet agent daemon. * SIGUSR1: Immediately retrieve and apply configurations from the puppet master. * SIGUSR2: Close file descriptors for log files and reopen them. Used with logrotate. AUTHOR ------ Luke Kanies COPYRIGHT --------- Copyright (c) 2011 Puppet Inc., LLC Licensed under the Apache 2.0 License HELP end |
#main(daemon) ⇒ Object
387 388 389 390 |
# File 'lib/puppet/application/agent.rb', line 387 def main(daemon) Puppet.notice _("Starting Puppet client version %{version}") % { version: Puppet.version } daemon.start end |
#onetime(daemon) ⇒ Object
369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 |
# File 'lib/puppet/application/agent.rb', line 369 def onetime(daemon) begin exitstatus = daemon.agent.run(:job_id => [:job_id]) rescue => detail Puppet.log_exception(detail) end daemon.stop(:exit => false) if not exitstatus exit(1) elsif [:detailed_exitcodes] then exit(exitstatus) else exit(0) end end |
#preinit ⇒ Object
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 |
# File 'lib/puppet/application/agent.rb', line 21 def preinit # Do an initial trap, so that cancels don't get a stack trace. Signal.trap(:INT) do $stderr.puts _("Cancelling startup") exit(0) end { :waitforcert => nil, :detailed_exitcodes => false, :verbose => false, :debug => false, :setdest => false, :enable => false, :disable => false, :fqdn => nil, :serve => [], :digest => 'SHA256', :graph => true, :fingerprint => false, :sourceaddress => nil, }.each do |opt,val| [opt] = val end @argv = ARGV.dup end |
#run_command ⇒ Object
339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 |
# File 'lib/puppet/application/agent.rb', line 339 def run_command if [:fingerprint] fingerprint else # It'd be nice to daemonize later, but we have to daemonize before # waiting for certificates so that we don't block daemon = daemonize_process_when(Puppet[:daemonize]) # Setup signal traps immediately after daemonization so we clean up the daemon daemon.set_signal_traps wait_for_certificates if Puppet[:onetime] onetime(daemon) else main(daemon) end end end |
#setup ⇒ Object
403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 |
# File 'lib/puppet/application/agent.rb', line 403 def setup raise ArgumentError, _("The puppet agent command does not take parameters") unless command_line.args.empty? setup_test if [:test] setup_logs exit(Puppet.settings.print_configs ? 0 : 1) if Puppet.settings.print_configs? Puppet::SSL::Oids.register_puppet_oids if [:fqdn] Puppet[:certname] = [:fqdn] end Puppet.settings.use :main, :agent, :ssl Puppet::Transaction::Report.indirection.terminus_class = :rest # we want the last report to be persisted locally Puppet::Transaction::Report.indirection.cache_class = :yaml if Puppet[:catalog_cache_terminus] Puppet::Resource::Catalog.indirection.cache_class = Puppet[:catalog_cache_terminus] end # In fingerprint mode we don't need to set up the whole agent unless [:fingerprint] setup_agent end end |
#setup_test ⇒ Object
Enable all of the most common test options.
393 394 395 396 397 398 399 400 401 |
# File 'lib/puppet/application/agent.rb', line 393 def setup_test Puppet.settings.handlearg("--no-usecacheonfailure") Puppet.settings.handlearg("--no-splay") Puppet.settings.handlearg("--show_diff") Puppet.settings.handlearg("--no-daemonize") [:verbose] = true Puppet[:onetime] = true [:detailed_exitcodes] = true end |