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# Licensed to the StackStorm, Inc ('StackStorm') under one or more |
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# contributor license agreements. See the NOTICE file distributed with |
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# this work for additional information regarding copyright ownership. |
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# The ASF licenses this file to You under the Apache License, Version 2.0 |
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# (the "License"); you may not use this file except in compliance with |
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# the License. You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import os |
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from oslo_config import cfg |
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from st2common import log as logging |
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from st2common.content import utils as content_utils |
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from st2common.constants.meta import ALLOWED_EXTS |
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from st2common.bootstrap.base import ResourceRegistrar |
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from st2common.models.api.pack import ConfigAPI |
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from st2common.persistence.pack import Config |
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from st2common.exceptions.db import StackStormDBObjectNotFoundError |
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__all__ = [ |
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'ConfigsRegistrar' |
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] |
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LOG = logging.getLogger(__name__) |
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class ConfigsRegistrar(ResourceRegistrar): |
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""" |
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Class for loading and registering pack configs located in |
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/opt/stackstorm/configs/<pack name>.yaml |
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""" |
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ALLOWED_EXTENSIONS = ALLOWED_EXTS |
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def __init__(self, use_pack_cache=True, fail_on_failure=False, validate_configs=True): |
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super(ConfigsRegistrar, self).__init__(use_pack_cache=use_pack_cache, |
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fail_on_failure=fail_on_failure) |
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self._validate_configs = validate_configs |
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def register_configs_for_all_packs(self, base_dirs): |
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""" |
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Register configs for all the available packs. |
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""" |
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# Register packs first |
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self.register_packs(base_dirs=base_dirs) |
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registered_count = 0 |
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packs = self._pack_loader.get_packs(base_dirs=base_dirs) |
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pack_names = packs.keys() |
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for pack_name in pack_names: |
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config_path = self._get_config_path_for_pack(pack_name=pack_name) |
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if not os.path.isfile(config_path): |
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# Config for that pack doesn't exist |
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LOG.debug('No config found for pack "%s" (file "%s" is not present).', pack_name, |
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config_path) |
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continue |
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try: |
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self._register_config_for_pack(pack=pack_name, config_path=config_path) |
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except Exception as e: |
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if self._fail_on_failure: |
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raise e |
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LOG.exception('Failed to register config for pack "%s": %s', pack_name, str(e)) |
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else: |
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registered_count += 1 |
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return registered_count |
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def register_config_for_pack(self, pack_dir): |
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""" |
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Register config for a provided pack. |
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""" |
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pack_dir = pack_dir[:-1] if pack_dir.endswith('/') else pack_dir |
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_, pack_name = os.path.split(pack_dir) |
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# Register pack first |
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self.register_pack(pack_name=pack_name, pack_dir=pack_dir) |
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config_path = self._get_config_path_for_pack(pack_name=pack_name) |
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if not os.path.isfile(config_path): |
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return 0 |
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self._register_config_for_pack(pack=pack_name, config_path=config_path) |
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return 1 |
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def _get_config_path_for_pack(self, pack_name): |
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configs_path = os.path.join(cfg.CONF.system.base_path, 'configs/') |
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config_path = os.path.join(configs_path, '%s.yaml' % (pack_name)) |
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return config_path |
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def _register_config_for_pack(self, pack, config_path): |
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content = {} |
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values = self._meta_loader.load(config_path) |
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content['pack'] = pack |
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content['values'] = values |
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config_api = ConfigAPI(**content) |
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config_api.validate(validate_against_schema=self._validate_configs) |
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config_db = ConfigAPI.to_model(config_api) |
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try: |
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config_db.id = Config.get_by_pack(config_api.pack).id |
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except StackStormDBObjectNotFoundError: |
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LOG.debug('Config for pack "%s" not found. Creating new entry.', pack) |
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try: |
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config_db = Config.add_or_update(config_db) |
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extra = {'config_db': config_db} |
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LOG.audit('Config for pack "%s" is updated.', config_db.pack, extra=extra) |
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except Exception: |
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LOG.exception('Failed to config for pack %s.', pack) |
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raise |
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return config_db |
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def register_configs(packs_base_paths=None, pack_dir=None, use_pack_cache=True, |
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fail_on_failure=False, validate_configs=True): |
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if packs_base_paths: |
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assert isinstance(packs_base_paths, list) |
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if not packs_base_paths: |
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packs_base_paths = content_utils.get_packs_base_paths() |
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registrar = ConfigsRegistrar(use_pack_cache=use_pack_cache, |
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fail_on_failure=fail_on_failure, |
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validate_configs=validate_configs) |
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if pack_dir: |
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result = registrar.register_config_for_pack(pack_dir=pack_dir) |
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else: |
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result = registrar.register_configs_for_all_packs(base_dirs=packs_base_paths) |
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return result |
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Plexxi /
st2
