121 lines
5.0 KiB
Python
121 lines
5.0 KiB
Python
# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# 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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#
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# ingester - Ingest host topologies to define site design and
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# persist design to helm-drydock's statemgmt service
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import logging
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import yaml
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import uuid
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import importlib
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import drydock_provisioner.objects as objects
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import drydock_provisioner.objects.site as site
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import drydock_provisioner.objects.network as network
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import drydock_provisioner.objects.hwprofile as hwprofile
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import drydock_provisioner.objects.node as node
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import drydock_provisioner.objects.hostprofile as hostprofile
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from drydock_provisioner.statemgmt import DesignState
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class Ingester(object):
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def __init__(self):
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self.logger = logging.getLogger("drydock.ingester")
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self.registered_plugins = {}
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def enable_plugins(self, plugins=[]):
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"""
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enable_plugins
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:params plugins: - A list of strings naming class objects denoting the ingester plugins to be enabled
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Enable plugins that can be used for ingest_data calls. Each plugin should use
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drydock_provisioner.ingester.plugins.IngesterPlugin as its base class. As long as one
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enabled plugin successfully initializes, the call is considered successful. Otherwise
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it will throw an exception
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"""
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if len(plugins) == 0:
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self.log.error("Cannot have an empty plugin list.")
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for plugin in plugins:
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try:
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(module, x, classname) = plugin.rpartition('.')
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if module == '':
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raise Exception()
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mod = importlib.import_module(module)
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klass = getattr(mod, classname)
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new_plugin = klass()
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plugin_name = new_plugin.get_name()
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self.registered_plugins[plugin_name] = new_plugin
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except Exception as ex:
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self.logger.error("Could not enable plugin %s - %s" % (plugin, str(ex)))
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if len(self.registered_plugins) == 0:
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self.logger.error("Could not enable at least one plugin")
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raise Exception("Could not enable at least one plugin")
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def ingest_data(self, plugin_name='', design_state=None, design_id=None, context=None, **kwargs):
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if design_state is None:
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self.logger.error("Ingester:ingest_data called without valid DesignState handler")
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raise ValueError("Invalid design_state handler")
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# If no design_id is specified, instantiate a new one
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if 'design_id' is None:
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self.logger.error("Ingester:ingest_data required kwarg 'design_id' missing")
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raise ValueError("Ingester:ingest_data required kwarg 'design_id' missing")
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design_data = design_state.get_design(design_id)
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self.logger.debug("Ingester:ingest_data ingesting design parts for design %s" % design_id)
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if plugin_name in self.registered_plugins:
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try:
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design_items = self.registered_plugins[plugin_name].ingest_data(**kwargs)
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except ValueError as vex:
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self.logger.warn("Ingester:ingest_data - Error process data - %s" % (str(vex)))
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return None
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self.logger.debug("Ingester:ingest_data parsed %s design parts" % str(len(design_items)))
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for m in design_items:
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if context is not None:
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m.set_create_fields(context)
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if type(m) is site.Site:
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design_data.set_site(m)
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elif type(m) is network.Network:
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design_data.add_network(m)
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elif type(m) is network.NetworkLink:
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design_data.add_network_link(m)
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elif type(m) is hostprofile.HostProfile:
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design_data.add_host_profile(m)
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elif type(m) is hwprofile.HardwareProfile:
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design_data.add_hardware_profile(m)
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elif type(m) is node.BaremetalNode:
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design_data.add_baremetal_node(m)
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design_state.put_design(design_data)
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return design_items
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else:
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self.logger.error("Could not find plugin %s to ingest data." % (plugin_name))
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raise LookupError("Could not find plugin %s" % plugin_name)
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"""
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ingest_data
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params: plugin_name - Which plugin should be used for ingestion
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params: params - A map of parameters that will be passed to the plugin's ingest_data method
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Execute a data ingestion using the named plugin (assuming it is enabled)
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"""
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