d80febb384
APIImpact Related blueprint cluster-healing Change-Id: I78d4d14fb064996de77bdd6a381d2df53a9488b8
278 lines
12 KiB
Python
278 lines
12 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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from oslo_utils import strutils
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from oslo_utils import uuidutils
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from oslo_versionedobjects import fields
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from magnum.common import exception
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from magnum.db import api as dbapi
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from magnum.objects import base
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from magnum.objects.cluster_template import ClusterTemplate
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from magnum.objects import fields as m_fields
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@base.MagnumObjectRegistry.register
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class Cluster(base.MagnumPersistentObject, base.MagnumObject,
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base.MagnumObjectDictCompat):
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# Version 1.0: Initial version
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# Version 1.1: Added 'bay_create_timeout' field
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# Version 1.2: Add 'registry_trust_id' field
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# Version 1.3: Added 'baymodel' field
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# Version 1.4: Added more types of status to bay's status field
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# Version 1.5: Rename 'registry_trust_id' to 'trust_id'
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# Add 'trustee_user_name', 'trustee_password',
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# 'trustee_user_id' field
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# Version 1.6: Add rollback support for Bay
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# Version 1.7: Added 'coe_version' and 'container_version' fields
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# Version 1.8: Rename 'baymodel' to 'cluster_template'
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# Version 1.9: Rename table name from 'bay' to 'cluster'
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# Rename 'baymodel_id' to 'cluster_template_id'
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# Rename 'bay_create_timeout' to 'create_timeout'
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# Version 1.10: Added 'keypair' field
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# Version 1.11: Added 'RESUME_FAILED' in status field
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# Version 1.12: Added 'get_stats' method
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# Version 1.13: Added get_count_all method
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# Version 1.14: Added 'docker_volume_size' field
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# Version 1.15: Added 'labels' field
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# Version 1.16: Added 'master_flavor_id' field
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# Version 1.17: Added 'flavor_id' field
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# Version 1.18: Added 'health_status' and 'health_status_reason' field
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VERSION = '1.18'
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dbapi = dbapi.get_instance()
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fields = {
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'id': fields.IntegerField(),
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'uuid': fields.UUIDField(nullable=True),
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'name': fields.StringField(nullable=True),
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'project_id': fields.StringField(nullable=True),
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'user_id': fields.StringField(nullable=True),
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'cluster_template_id': fields.StringField(nullable=True),
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'keypair': fields.StringField(nullable=True),
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'docker_volume_size': fields.IntegerField(nullable=True),
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'labels': fields.DictOfStringsField(nullable=True),
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'master_flavor_id': fields.StringField(nullable=True),
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'flavor_id': fields.StringField(nullable=True),
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'stack_id': fields.StringField(nullable=True),
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'status': m_fields.ClusterStatusField(nullable=True),
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'status_reason': fields.StringField(nullable=True),
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'health_status': m_fields.ClusterHealthStatusField(nullable=True),
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'health_status_reason': fields.DictOfStringsField(nullable=True),
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'create_timeout': fields.IntegerField(nullable=True),
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'api_address': fields.StringField(nullable=True),
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'node_addresses': fields.ListOfStringsField(nullable=True),
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'node_count': fields.IntegerField(nullable=True),
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'master_count': fields.IntegerField(nullable=True),
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'discovery_url': fields.StringField(nullable=True),
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'master_addresses': fields.ListOfStringsField(nullable=True),
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'ca_cert_ref': fields.StringField(nullable=True),
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'magnum_cert_ref': fields.StringField(nullable=True),
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'cluster_template': fields.ObjectField('ClusterTemplate'),
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'trust_id': fields.StringField(nullable=True),
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'trustee_username': fields.StringField(nullable=True),
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'trustee_password': fields.StringField(nullable=True),
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'trustee_user_id': fields.StringField(nullable=True),
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'coe_version': fields.StringField(nullable=True),
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'container_version': fields.StringField(nullable=True)
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}
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@staticmethod
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def _from_db_object(cluster, db_cluster):
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"""Converts a database entity to a formal object."""
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for field in cluster.fields:
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if field != 'cluster_template':
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cluster[field] = db_cluster[field]
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# Note(eliqiao): The following line needs to be placed outside the
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# loop because there is a dependency from cluster_template to
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# cluster_template_id. The cluster_template_id must be populated
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# first in the loop before it can be used to find the cluster_template.
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cluster['cluster_template'] = ClusterTemplate.get_by_uuid(
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cluster._context, cluster.cluster_template_id)
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cluster.obj_reset_changes()
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return cluster
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@staticmethod
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def _from_db_object_list(db_objects, cls, context):
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"""Converts a list of database entities to a list of formal objects."""
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return [Cluster._from_db_object(cls(context), obj)
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for obj in db_objects]
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@base.remotable_classmethod
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def get(cls, context, cluster_id):
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"""Find a cluster based on its id or uuid and return a Cluster object.
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:param cluster_id: the id *or* uuid of a cluster.
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:param context: Security context
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:returns: a :class:`Cluster` object.
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"""
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if strutils.is_int_like(cluster_id):
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return cls.get_by_id(context, cluster_id)
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elif uuidutils.is_uuid_like(cluster_id):
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return cls.get_by_uuid(context, cluster_id)
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else:
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raise exception.InvalidIdentity(identity=cluster_id)
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@base.remotable_classmethod
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def get_by_id(cls, context, cluster_id):
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"""Find a cluster based on its integer id and return a Cluster object.
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:param cluster_id: the id of a cluster.
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:param context: Security context
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:returns: a :class:`Cluster` object.
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"""
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db_cluster = cls.dbapi.get_cluster_by_id(context, cluster_id)
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cluster = Cluster._from_db_object(cls(context), db_cluster)
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return cluster
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@base.remotable_classmethod
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def get_by_uuid(cls, context, uuid):
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"""Find a cluster based on uuid and return a :class:`Cluster` object.
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:param uuid: the uuid of a cluster.
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:param context: Security context
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:returns: a :class:`Cluster` object.
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"""
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db_cluster = cls.dbapi.get_cluster_by_uuid(context, uuid)
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cluster = Cluster._from_db_object(cls(context), db_cluster)
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return cluster
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@base.remotable_classmethod
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def get_count_all(cls, context, filters=None):
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"""Get count of matching clusters.
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:param context: The security context
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:param filters: filter dict, can includes 'cluster_template_id',
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'name', 'node_count', 'stack_id', 'api_address',
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'node_addresses', 'project_id', 'user_id',
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'status'(should be a status list), 'master_count'.
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:returns: Count of matching clusters.
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"""
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return cls.dbapi.get_cluster_count_all(context, filters=filters)
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@base.remotable_classmethod
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def get_by_name(cls, context, name):
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"""Find a cluster based on name and return a Cluster object.
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:param name: the logical name of a cluster.
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:param context: Security context
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:returns: a :class:`Cluster` object.
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"""
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db_cluster = cls.dbapi.get_cluster_by_name(context, name)
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cluster = Cluster._from_db_object(cls(context), db_cluster)
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return cluster
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@base.remotable_classmethod
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def list(cls, context, limit=None, marker=None,
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sort_key=None, sort_dir=None, filters=None):
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"""Return a list of Cluster objects.
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:param context: Security context.
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:param limit: maximum number of resources to return in a single result.
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:param marker: pagination marker for large data sets.
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:param sort_key: column to sort results by.
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:param sort_dir: direction to sort. "asc" or "desc".
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:param filters: filter dict, can includes 'cluster_template_id',
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'name', 'node_count', 'stack_id', 'api_address',
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'node_addresses', 'project_id', 'user_id',
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'status'(should be a status list), 'master_count'.
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:returns: a list of :class:`Cluster` object.
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"""
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db_clusters = cls.dbapi.get_cluster_list(context, limit=limit,
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marker=marker,
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sort_key=sort_key,
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sort_dir=sort_dir,
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filters=filters)
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return Cluster._from_db_object_list(db_clusters, cls, context)
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@base.remotable_classmethod
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def get_stats(cls, context, project_id=None):
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"""Return a list of Cluster objects.
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:param context: Security context.
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:param project_id: project id
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"""
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return cls.dbapi.get_cluster_stats(project_id)
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@base.remotable
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def create(self, context=None):
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"""Create a Cluster record in the DB.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Cluster(context)
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"""
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values = self.obj_get_changes()
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db_cluster = self.dbapi.create_cluster(values)
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self._from_db_object(self, db_cluster)
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@base.remotable
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def destroy(self, context=None):
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"""Delete the Cluster from the DB.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Cluster(context)
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"""
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self.dbapi.destroy_cluster(self.uuid)
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self.obj_reset_changes()
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@base.remotable
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def save(self, context=None):
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"""Save updates to this Cluster.
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Updates will be made column by column based on the result
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of self.what_changed().
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Cluster(context)
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"""
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updates = self.obj_get_changes()
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self.dbapi.update_cluster(self.uuid, updates)
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self.obj_reset_changes()
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@base.remotable
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def refresh(self, context=None):
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"""Loads updates for this Cluster.
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Loads a Cluster with the same uuid from the database and
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checks for updated attributes. Updates are applied from
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the loaded Cluster column by column, if there are any updates.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Cluster(context)
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"""
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current = self.__class__.get_by_uuid(self._context, uuid=self.uuid)
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for field in self.fields:
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if self.obj_attr_is_set(field) and self[field] != current[field]:
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self[field] = current[field]
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