116 lines
4.2 KiB
Python
116 lines
4.2 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import six
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import uuid
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from karbor.common import constants
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from karbor import exception
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from karbor import resource
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from karbor.services.protection.client_factory import ClientFactory
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from karbor.services.protection import protectable_plugin
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from oslo_config import cfg
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from oslo_log import log as logging
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LOG = logging.getLogger(__name__)
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pod_protectable_opts = [
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cfg.StrOpt('namespace',
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default='default',
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help='The namespace name that kubernetes client use.')
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]
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def register_opts(conf):
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conf.register_opts(pod_protectable_opts, group='pod_protectable')
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INVALID_POD_STATUS = ['Pending', 'Failed', 'Unknown']
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class K8sPodProtectablePlugin(protectable_plugin.ProtectablePlugin):
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"""K8s pod protectable plugin"""
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_SUPPORT_RESOURCE_TYPE = constants.POD_RESOURCE_TYPE
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def __init__(self, context=None, config=None):
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super(K8sPodProtectablePlugin, self).__init__(context, config)
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self.namespace = None
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if self._conf:
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register_opts(self._conf)
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plugin_cfg = self._conf.pod_protectable
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self.namespace = plugin_cfg.namespace
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def _client(self, context):
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self._client_instance = ClientFactory.create_client(
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"k8s", context)
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return self._client_instance
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def get_resource_type(self):
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return self._SUPPORT_RESOURCE_TYPE
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def get_parent_resource_types(self):
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return (constants.PROJECT_RESOURCE_TYPE)
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def list_resources(self, context, parameters=None):
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try:
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pods = self._client(context).list_namespaced_pod(self.namespace)
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except Exception as e:
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LOG.exception("List all summary pods from kubernetes failed.")
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raise exception.ListProtectableResourceFailed(
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type=self._SUPPORT_RESOURCE_TYPE,
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reason=six.text_type(e))
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else:
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return [resource.Resource(
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type=self._SUPPORT_RESOURCE_TYPE,
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id=uuid.uuid5(uuid.NAMESPACE_OID, "%s:%s" % (
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self.namespace, pod.metadata.name)),
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name="%s:%s" % (self.namespace, pod.metadata.name),
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extra_info={'namespace': self.namespace})
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for pod in pods.items
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if pod.status.phase not in INVALID_POD_STATUS]
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def show_resource(self, context, resource_id, parameters=None):
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try:
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if not parameters:
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raise
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name = parameters.get("name", None)
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if ":" in name:
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pod_namespace, pod_name = name.split(":")
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else:
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pod_namespace = self.namespace
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pod_name = name
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pod = self._client(context).read_namespaced_pod(
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pod_name, pod_namespace)
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except Exception as e:
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LOG.exception("Show a summary pod from kubernetes failed.")
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raise exception.ProtectableResourceNotFound(
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id=resource_id,
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type=self._SUPPORT_RESOURCE_TYPE,
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reason=six.text_type(e))
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else:
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if pod.status.phase in INVALID_POD_STATUS:
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raise exception.ProtectableResourceInvalidStatus(
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id=resource_id, type=self._SUPPORT_RESOURCE_TYPE,
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status=pod.status.phase)
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return resource.Resource(
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type=self._SUPPORT_RESOURCE_TYPE,
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id=uuid.uuid5(uuid.NAMESPACE_OID, "%s:%s" % (
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self.namespace, pod.metadata.name)),
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name="%s:%s" % (pod_namespace, pod.metadata.name),
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extra_info={'namespace': pod_namespace})
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def get_dependent_resources(self, context, parent_resource):
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self.list_resources(context)
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