Mercurial > libervia-backend
annotate sat/plugins/plugin_misc_app_manager.py @ 3768:b443821399a3
docker (prosody-e2e): update Prosody's conf:
Due to mod_privilege and PAM implementation in Libervia Pubsub, permissions have been
udpated in `prosody.cfg.lua`, with the new `iq` permission and namespace delegation needed
for PAM.
`"urn:xmpp:delegation:2:bare:disco#info:*"` namespace delegation was also missing.
rel 365
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 13 May 2022 19:24:38 +0200 |
| parents | d66a8453b02b |
| children | 402d31527af4 |
| rev | line source |
|---|---|
| 3372 | 1 #!/usr/bin/env python3 |
| 2 | |
| 3 # SàT plugin to manage external applications | |
| 3479 | 4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) |
| 3372 | 5 |
| 6 # This program is free software: you can redistribute it and/or modify | |
| 7 # it under the terms of the GNU Affero General Public License as published by | |
| 8 # the Free Software Foundation, either version 3 of the License, or | |
| 9 # (at your option) any later version. | |
| 10 | |
| 11 # This program is distributed in the hope that it will be useful, | |
| 12 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 # GNU Affero General Public License for more details. | |
| 15 | |
| 16 # You should have received a copy of the GNU Affero General Public License | |
| 17 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 18 | |
| 19 from pathlib import Path | |
| 20 from typing import Optional, List | |
| 21 from functools import partial, reduce | |
| 22 import tempfile | |
| 23 import secrets | |
| 24 import string | |
| 25 import shortuuid | |
| 26 from twisted.internet import defer | |
| 27 from twisted.python.procutils import which | |
| 28 from sat.core.i18n import _ | |
| 29 from sat.core import exceptions | |
| 30 from sat.core.constants import Const as C | |
| 31 from sat.core.log import getLogger | |
| 32 from sat.tools.common import data_format | |
| 33 from sat.tools.common import async_process | |
| 34 | |
| 35 log = getLogger(__name__) | |
| 36 | |
| 37 try: | |
| 38 import yaml | |
| 39 except ImportError: | |
| 40 raise exceptions.MissingModule( | |
| 41 'Missing module PyYAML, please download/install it. You can use ' | |
| 42 '"pip install pyyaml"' | |
| 43 ) | |
| 44 | |
| 45 try: | |
| 46 from yaml import CLoader as Loader, CDumper as Dumper | |
| 47 except ImportError: | |
| 48 log.warning( | |
| 49 "Can't use LibYAML binding (is libyaml installed?), pure Python version will be " | |
| 50 "used, but it is slower" | |
| 51 ) | |
| 52 from yaml import Loader, Dumper | |
| 53 | |
| 54 from yaml.constructor import ConstructorError | |
| 55 | |
| 56 | |
| 57 PLUGIN_INFO = { | |
| 58 C.PI_NAME: "Applications Manager", | |
| 59 C.PI_IMPORT_NAME: "APP_MANAGER", | |
| 60 C.PI_TYPE: C.PLUG_TYPE_MISC, | |
| 61 C.PI_MODES: C.PLUG_MODE_BOTH, | |
| 62 C.PI_MAIN: "AppManager", | |
| 63 C.PI_HANDLER: "no", | |
| 64 C.PI_DESCRIPTION: _( | |
| 65 """Applications Manager | |
| 66 | |
| 67 Manage external applications using packagers, OS virtualization/containers or other | |
| 68 software management tools. | |
| 69 """), | |
| 70 } | |
| 71 | |
| 72 APP_FILE_PREFIX = "sat_app_" | |
| 73 | |
| 74 | |
| 75 class AppManager: | |
| 76 load = partial(yaml.load, Loader=Loader) | |
| 77 dump = partial(yaml.dump, Dumper=Dumper) | |
| 78 | |
| 79 def __init__(self, host): | |
| 80 log.info(_("plugin Applications Manager initialization")) | |
| 81 self.host = host | |
| 82 self._managers = {} | |
| 83 self._apps = {} | |
| 84 self._started = {} | |
| 85 # instance id to app data map | |
| 86 self._instances = {} | |
| 87 host.bridge.addMethod( | |
| 88 "applicationsList", | |
| 89 ".plugin", | |
| 90 in_sign="as", | |
| 91 out_sign="as", | |
| 92 method=self.list_applications, | |
| 93 ) | |
| 94 host.bridge.addMethod( | |
| 95 "applicationStart", | |
| 96 ".plugin", | |
| 97 in_sign="ss", | |
| 98 out_sign="", | |
| 99 method=self._start, | |
| 100 async_=True, | |
| 101 ) | |
| 102 host.bridge.addMethod( | |
| 103 "applicationStop", | |
| 104 ".plugin", | |
| 105 in_sign="sss", | |
| 106 out_sign="", | |
| 107 method=self._stop, | |
| 108 async_=True, | |
| 109 ) | |
| 110 host.bridge.addMethod( | |
| 111 "applicationExposedGet", | |
| 112 ".plugin", | |
| 113 in_sign="sss", | |
| 114 out_sign="s", | |
| 115 method=self._getExposed, | |
| 116 async_=True, | |
| 117 ) | |
| 118 yaml.add_constructor( | |
| 119 "!sat_conf", self._sat_conf_constr, Loader=Loader) | |
| 120 yaml.add_constructor( | |
| 121 "!sat_generate_pwd", self._sat_generate_pwd_constr, Loader=Loader) | |
| 122 yaml.add_constructor( | |
| 123 "!sat_param", self._sat_param_constr, Loader=Loader) | |
| 124 | |
| 125 def unload(self): | |
| 126 log.debug("unloading applications manager") | |
| 127 for instances in self._started.values(): | |
| 128 for instance in instances: | |
| 129 data = instance['data'] | |
| 130 if not data['single_instance']: | |
| 131 log.debug( | |
| 132 f"cleaning temporary directory at {data['_instance_dir_path']}") | |
| 133 data['_instance_dir_obj'].cleanup() | |
| 134 | |
| 135 def _sat_conf_constr(self, loader, node): | |
| 136 """Get a value from SàT configuration | |
| 137 | |
| 138 A list is expected with either "name" of a config parameter, a one or more of | |
| 139 those parameters: | |
| 140 - section | |
| 141 - name | |
| 142 - default value | |
| 143 - filter | |
| 144 filter can be: | |
| 145 - "first": get the first item of the value | |
| 146 """ | |
| 147 config_data = loader.construct_sequence(node) | |
| 148 if len(config_data) == 1: | |
| 149 section, name, default, filter_ = "", config_data[0], None, None | |
| 150 if len(config_data) == 2: | |
| 151 (section, name), default, filter_ = config_data, None, None | |
| 152 elif len(config_data) == 3: | |
| 153 (section, name, default), filter_ = config_data, None | |
| 154 elif len(config_data) == 4: | |
| 155 section, name, default, filter_ = config_data | |
| 156 else: | |
| 157 raise ValueError( | |
| 158 f"invalid !sat_conf value ({config_data!r}), a list of 1 to 4 items is " | |
| 159 "expected" | |
| 160 ) | |
| 161 | |
| 162 value = self.host.memory.getConfig(section, name, default) | |
|
3564
2c9e95796371
plugin app manager: "public_url" must NOT have a schema
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
163 # FIXME: "public_url" is used only here and doesn't take multi-sites into account |
|
2c9e95796371
plugin app manager: "public_url" must NOT have a schema
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
164 if name == "public_url" and (not value or value.startswith('http')): |
| 3372 | 165 if not value: |
| 166 log.warning(_( | |
|
3564
2c9e95796371
plugin app manager: "public_url" must NOT have a schema
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
167 'No value found for "public_url", using "example.org" for ' |
|
2c9e95796371
plugin app manager: "public_url" must NOT have a schema
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
168 'now, please set the proper value in libervia.conf')) |
| 3372 | 169 else: |
| 170 log.warning(_( | |
|
3564
2c9e95796371
plugin app manager: "public_url" must NOT have a schema
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
171 'invalid value for "public_url" ({value}), it musts not start with ' |
|
2c9e95796371
plugin app manager: "public_url" must NOT have a schema
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
172 'schema ("http"), ignoring it and using "example.org" ' |
|
2c9e95796371
plugin app manager: "public_url" must NOT have a schema
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
173 'instead') |
| 3372 | 174 .format(value=value)) |
|
3564
2c9e95796371
plugin app manager: "public_url" must NOT have a schema
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
175 value = "example.org" |
| 3372 | 176 |
| 177 if filter_ is None: | |
| 178 pass | |
| 179 elif filter_ == 'first': | |
| 180 value = value[0] | |
| 181 else: | |
| 182 raise ValueError(f"unmanaged filter: {filter_}") | |
| 183 | |
| 184 return value | |
| 185 | |
| 186 def _sat_generate_pwd_constr(self, loader, node): | |
| 187 alphabet = string.ascii_letters + string.digits | |
| 188 return ''.join(secrets.choice(alphabet) for i in range(30)) | |
| 189 | |
| 190 def _sat_param_constr(self, loader, node): | |
| 191 """Get a parameter specified when starting the application | |
| 192 | |
| 193 The value can be either the name of the parameter to get, or a list as | |
| 194 [name, default_value] | |
| 195 """ | |
| 196 try: | |
| 197 name, default = loader.construct_sequence(node) | |
| 198 except ConstructorError: | |
| 199 name, default = loader.construct_scalar(node), None | |
| 200 return self._params.get(name, default) | |
| 201 | |
| 202 def register(self, manager): | |
| 203 name = manager.name | |
| 204 if name in self._managers: | |
| 205 raise exceptions.ConflictError( | |
| 206 f"There is already a manager with the name {name}") | |
| 207 self._managers[manager.name] = manager | |
| 208 if hasattr(manager, "discover_path"): | |
| 209 self.discover(manager.discover_path, manager) | |
| 210 | |
| 211 def getManager(self, app_data: dict) -> object: | |
| 212 """Get manager instance needed for this app | |
| 213 | |
| 214 @raise exceptions.DataError: something is wrong with the type | |
| 215 @raise exceptions.NotFound: manager is not registered | |
| 216 """ | |
| 217 try: | |
| 218 app_type = app_data["type"] | |
| 219 except KeyError: | |
| 220 raise exceptions.DataError( | |
| 221 "app file doesn't have the mandatory \"type\" key" | |
| 222 ) | |
| 223 if not isinstance(app_type, str): | |
| 224 raise exceptions.DataError( | |
| 225 f"invalid app data type: {app_type!r}" | |
| 226 ) | |
| 227 app_type = app_type.strip() | |
| 228 try: | |
| 229 return self._managers[app_type] | |
| 230 except KeyError: | |
| 231 raise exceptions.NotFound( | |
| 232 f"No manager found to manage app of type {app_type!r}") | |
| 233 | |
| 234 def getAppData( | |
| 235 self, | |
| 236 id_type: Optional[str], | |
| 237 identifier: str | |
| 238 ) -> dict: | |
| 239 """Retrieve instance's app_data from identifier | |
| 240 | |
| 241 @param id_type: type of the identifier, can be: | |
| 242 - "name": identifier is a canonical application name | |
| 243 the first found instance of this application is returned | |
| 244 - "instance": identifier is an instance id | |
| 245 @param identifier: identifier according to id_type | |
| 246 @return: instance application data | |
| 247 @raise exceptions.NotFound: no instance with this id can be found | |
| 248 @raise ValueError: id_type is invalid | |
| 249 """ | |
| 250 if not id_type: | |
| 251 id_type = 'name' | |
| 252 if id_type == 'name': | |
| 253 identifier = identifier.lower().strip() | |
| 254 try: | |
| 255 return next(iter(self._started[identifier])) | |
| 256 except (KeyError, StopIteration): | |
| 257 raise exceptions.NotFound( | |
| 258 f"No instance of {identifier!r} is currently running" | |
| 259 ) | |
| 260 elif id_type == 'instance': | |
| 261 instance_id = identifier | |
| 262 try: | |
| 263 return self._instances[instance_id] | |
| 264 except KeyError: | |
| 265 raise exceptions.NotFound( | |
| 266 f"There is no application instance running with id {instance_id!r}" | |
| 267 ) | |
| 268 else: | |
| 269 raise ValueError(f"invalid id_type: {id_type!r}") | |
| 270 | |
| 271 def discover( | |
| 272 self, | |
| 273 dir_path: Path, | |
| 274 manager: Optional = None | |
| 275 ) -> None: | |
| 276 for file_path in dir_path.glob(f"{APP_FILE_PREFIX}*.yaml"): | |
| 277 if manager is None: | |
| 278 try: | |
| 279 app_data = self.parse(file_path) | |
| 280 manager = self.getManager(app_data) | |
| 281 except (exceptions.DataError, exceptions.NotFound) as e: | |
| 282 log.warning( | |
| 283 f"Can't parse {file_path}, skipping: {e}") | |
| 284 app_name = file_path.stem[len(APP_FILE_PREFIX):].strip().lower() | |
| 285 if not app_name: | |
| 286 log.warning( | |
| 287 f"invalid app file name at {file_path}") | |
| 288 continue | |
| 289 app_dict = self._apps.setdefault(app_name, {}) | |
| 290 manager_set = app_dict.setdefault(manager, set()) | |
| 291 manager_set.add(file_path) | |
| 292 log.debug( | |
| 293 f"{app_name!r} {manager.name} application found" | |
| 294 ) | |
| 295 | |
| 296 def parse(self, file_path: Path, params: Optional[dict] = None) -> dict: | |
| 297 """Parse SàT application file | |
| 298 | |
| 299 @param params: parameters for running this instance | |
| 300 @raise exceptions.DataError: something is wrong in the file | |
| 301 """ | |
| 302 if params is None: | |
| 303 params = {} | |
| 304 with file_path.open() as f: | |
| 305 # we set parameters to be used only with this instance | |
| 306 # no async method must used between this assignation and `load` | |
| 307 self._params = params | |
| 308 app_data = self.load(f) | |
| 309 self._params = None | |
| 310 if "name" not in app_data: | |
| 311 # note that we don't use lower() here as we want human readable name and | |
| 312 # uppercase may be set on purpose | |
| 313 app_data['name'] = file_path.stem[len(APP_FILE_PREFIX):].strip() | |
| 314 single_instance = app_data.setdefault("single_instance", True) | |
| 315 if not isinstance(single_instance, bool): | |
| 316 raise ValueError( | |
| 317 f'"single_instance" must be a boolean, but it is {type(single_instance)}' | |
| 318 ) | |
| 319 return app_data | |
| 320 | |
| 321 def list_applications(self, filters: Optional[List[str]]) -> List[str]: | |
| 322 """List available application | |
| 323 | |
| 324 @param filters: only show applications matching those filters. | |
| 325 using None will list all known applications | |
| 326 a filter can be: | |
| 327 - available: applications available locally | |
| 328 - running: only show launched applications | |
| 329 """ | |
| 330 if not filters: | |
| 331 return list(self.apps) | |
| 332 found = set() | |
| 333 for filter_ in filters: | |
| 334 if filter_ == "available": | |
| 335 found.update(self._apps) | |
| 336 elif filter_ == "running": | |
| 337 found.update(self._started) | |
| 338 else: | |
| 339 raise ValueError(f"Unknown filter: {filter_}") | |
| 340 return list(found) | |
| 341 | |
| 342 def _start(self, app_name, extra): | |
| 343 extra = data_format.deserialise(extra) | |
| 344 return defer.ensureDeferred(self.start(str(app_name), extra)) | |
| 345 | |
| 346 async def start( | |
| 347 self, | |
| 348 app_name: str, | |
| 349 extra: Optional[dict] = None, | |
| 350 ) -> None: | |
| 351 # FIXME: for now we use the first app manager available for the requested app_name | |
| 352 # TODO: implement running multiple instance of the same app if some metadata | |
| 353 # to be defined in app_data allows explicitly it. | |
| 354 app_name = app_name.lower().strip() | |
| 355 try: | |
| 356 app_file_path = next(iter(next(iter(self._apps[app_name].values())))) | |
| 357 except KeyError: | |
| 358 raise exceptions.NotFound( | |
| 359 f"No application found with the name {app_name!r}" | |
| 360 ) | |
| 361 started_data = self._started.setdefault(app_name, []) | |
| 362 app_data = self.parse(app_file_path, extra) | |
| 363 app_data['_file_path'] = app_file_path | |
| 364 app_data['_name_canonical'] = app_name | |
| 365 single_instance = app_data['single_instance'] | |
| 366 if single_instance: | |
| 367 if started_data: | |
| 368 log.info(f"{app_name!r} is already started") | |
| 369 return | |
| 370 else: | |
| 371 cache_path = self.host.memory.getCachePath( | |
| 372 PLUGIN_INFO[C.PI_IMPORT_NAME], app_name | |
| 373 ) | |
| 374 cache_path.mkdir(0o700, parents=True, exist_ok=True) | |
| 375 app_data['_instance_dir_path'] = cache_path | |
| 376 else: | |
| 377 dest_dir_obj = tempfile.TemporaryDirectory(prefix="sat_app_") | |
| 378 app_data['_instance_dir_obj'] = dest_dir_obj | |
| 379 app_data['_instance_dir_path'] = Path(dest_dir_obj.name) | |
| 380 instance_id = app_data['_instance_id'] = shortuuid.uuid() | |
| 381 manager = self.getManager(app_data) | |
| 382 app_data['_manager'] = manager | |
| 383 started_data.append(app_data) | |
| 384 self._instances[instance_id] = app_data | |
| 385 | |
| 386 try: | |
| 387 start = manager.start | |
| 388 except AttributeError: | |
| 389 raise exceptions.InternalError( | |
| 390 f"{manager.name} doesn't have the mandatory \"start\" method" | |
| 391 ) | |
| 392 else: | |
| 393 await start(app_data) | |
| 394 log.info(f"{app_name!r} started") | |
| 395 | |
| 396 def _stop(self, identifier, id_type, extra): | |
| 397 extra = data_format.deserialise(extra) | |
| 398 return defer.ensureDeferred( | |
| 399 self.stop(str(identifier), str(id_type) or None, extra)) | |
| 400 | |
| 401 async def stop( | |
| 402 self, | |
| 403 identifier: str, | |
| 404 id_type: Optional[str] = None, | |
| 405 extra: Optional[dict] = None, | |
| 406 ) -> None: | |
| 407 if extra is None: | |
| 408 extra = {} | |
| 409 | |
| 410 app_data = self.getAppData(id_type, identifier) | |
| 411 | |
| 412 log.info(f"stopping {app_data['name']!r}") | |
| 413 | |
| 414 app_name = app_data['_name_canonical'] | |
| 415 instance_id = app_data['_instance_id'] | |
| 416 manager = app_data['_manager'] | |
| 417 | |
| 418 try: | |
| 419 stop = manager.stop | |
| 420 except AttributeError: | |
| 421 raise exceptions.InternalError( | |
| 422 f"{manager.name} doesn't have the mandatory \"stop\" method" | |
| 423 ) | |
| 424 else: | |
| 425 try: | |
| 426 await stop(app_data) | |
| 427 except Exception as e: | |
| 428 log.warning( | |
| 429 f"Instance {instance_id} of application {app_name} can't be stopped " | |
| 430 f"properly: {e}" | |
| 431 ) | |
| 432 return | |
| 433 | |
| 434 try: | |
| 435 del self._instances[instance_id] | |
| 436 except KeyError: | |
| 437 log.error( | |
| 438 f"INTERNAL ERROR: {instance_id!r} is not present in self._instances") | |
| 439 | |
| 440 try: | |
| 441 self._started[app_name].remove(app_data) | |
| 442 except ValueError: | |
| 443 log.error( | |
| 444 "INTERNAL ERROR: there is no app data in self._started with id " | |
| 445 f"{instance_id!r}" | |
| 446 ) | |
| 447 | |
| 448 log.info(f"{app_name!r} stopped") | |
| 449 | |
| 450 def _getExposed(self, identifier, id_type, extra): | |
| 451 extra = data_format.deserialise(extra) | |
| 452 d = defer.ensureDeferred(self.getExposed(identifier, id_type, extra)) | |
| 453 d.addCallback(lambda d: data_format.serialise(d)) | |
| 454 return d | |
| 455 | |
| 456 def getValueFromPath(self, app_data: dict, path: List[str]) -> any: | |
| 457 """Retrieve a value set in the data from it path | |
| 458 | |
| 459 @param path: list of key to use in app_data to retrieve the value | |
| 460 @return: found value | |
| 461 @raise NotFound: the value can't be found | |
| 462 """ | |
| 463 | |
| 464 async def getExposed( | |
| 465 self, | |
| 466 identifier: str, | |
| 467 id_type: Optional[str] = None, | |
| 468 extra: Optional[dict] = None, | |
| 469 ) -> dict: | |
| 470 """Get data exposed by the application | |
| 471 | |
| 472 The manager's "computeExpose" method will be called if it exists. It can be used | |
| 473 to handle manager specific conventions. | |
| 474 """ | |
| 475 app_data = self.getAppData(id_type, identifier) | |
| 476 if app_data.get('_exposed_computed', False): | |
| 477 return app_data['expose'] | |
| 478 if extra is None: | |
| 479 extra = {} | |
| 480 expose = app_data.setdefault("expose", {}) | |
| 481 if "passwords" in expose: | |
| 482 passwords = expose['passwords'] | |
| 483 for name, value in list(passwords.items()): | |
| 484 if isinstance(value, list): | |
| 485 # if we have a list, is the sequence of keys leading to the value | |
| 486 # to expose. We use "reduce" to retrieve the desired value | |
| 487 try: | |
| 488 passwords[name] = reduce(lambda l, k: l[k], value, app_data) | |
| 489 except Exception as e: | |
| 490 log.warning( | |
| 491 f"Can't retrieve exposed value for password {name!r}: {e}") | |
| 492 del passwords[name] | |
| 493 | |
| 494 url_prefix = expose.get("url_prefix") | |
| 495 if isinstance(url_prefix, list): | |
| 496 try: | |
| 497 expose["url_prefix"] = reduce(lambda l, k: l[k], url_prefix, app_data) | |
| 498 except Exception as e: | |
| 499 log.warning( | |
| 500 f"Can't retrieve exposed value for url_prefix: {e}") | |
| 501 del expose["url_prefix"] | |
| 502 | |
| 503 try: | |
| 504 computeExpose = app_data['_manager'].computeExpose | |
| 505 except AttributeError: | |
| 506 pass | |
| 507 else: | |
| 508 await computeExpose(app_data) | |
| 509 | |
| 510 app_data['_exposed_computed'] = True | |
| 511 return expose | |
| 512 | |
| 513 async def _doPrepare( | |
| 514 self, | |
| 515 app_data: dict, | |
| 516 ) -> None: | |
| 517 name = app_data['name'] | |
| 518 dest_path = app_data['_instance_dir_path'] | |
| 519 if next(dest_path.iterdir(), None) != None: | |
| 520 log.debug(f"There is already a prepared dir at {dest_path}, nothing to do") | |
| 521 return | |
| 522 try: | |
| 523 prepare = app_data['prepare'].copy() | |
| 524 except KeyError: | |
| 525 prepare = {} | |
| 526 | |
| 527 if not prepare: | |
| 528 log.debug("Nothing to prepare for {name!r}") | |
| 529 return | |
| 530 | |
| 531 for action, value in list(prepare.items()): | |
| 532 log.debug(f"[{name}] [prepare] running {action!r} action") | |
| 533 if action == "git": | |
| 534 try: | |
| 535 git_path = which('git')[0] | |
| 536 except IndexError: | |
| 537 raise exceptions.NotFound( | |
| 538 "Can't find \"git\" executable, {name} can't be started without it" | |
| 539 ) | |
| 540 await async_process.run(git_path, "clone", value, str(dest_path)) | |
| 541 log.debug(f"{value!r} git repository cloned at {dest_path}") | |
| 542 else: | |
| 543 raise NotImplementedError( | |
| 544 f"{action!r} is not managed, can't start {name}" | |
| 545 ) | |
| 546 del prepare[action] | |
| 547 | |
| 548 if prepare: | |
| 549 raise exceptions.InternalError('"prepare" should be empty') | |
| 550 | |
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551 async def _doCreateFiles( |
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552 self, |
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553 app_data: dict, |
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554 ) -> None: |
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555 dest_path = app_data['_instance_dir_path'] |
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556 files = app_data.get('files') |
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557 if not files: |
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558 return |
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559 if not isinstance(files, dict): |
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560 raise ValueError('"files" must be a dictionary') |
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561 for filename, data in files.items(): |
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562 path = dest_path / filename |
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563 if path.is_file(): |
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564 log.info(f"{path} already exists, skipping") |
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565 with path.open("w") as f: |
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566 f.write(data.get("content", "")) |
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567 log.debug(f"{path} created") |
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568 |
| 3372 | 569 async def startCommon(self, app_data: dict) -> None: |
| 570 """Method running common action when starting a manager | |
| 571 | |
| 572 It should be called by managers in "start" method. | |
| 573 """ | |
| 574 log.info(f"starting {app_data['name']!r}") | |
| 575 await self._doPrepare(app_data) | |
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576 await self._doCreateFiles(app_data) |