Add the Object Capsule and database table
Part of blueprint introduce-compose Change-Id: I8ed3711d14e8cda92b5bb5cf2874980cbd66cad0 Signed-off-by: Kevin Zhao <kevin.zhao@arm.com>
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Kevin Zhao
parent
080f4fb00f
commit
0b4c53e363
@ -177,3 +177,26 @@ class ResourceClass(Base):
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@classmethod
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def fields(cls):
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return cls._fields
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class Capsule(Base):
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"""Represents a capsule."""
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_path = '/capsules'
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_fields = objects.Capsule.fields.keys()
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def __init__(self, capsule_data):
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self.path = Capsule.path()
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for f in Capsule.fields():
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setattr(self, f, None)
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self.id = 1
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self.update(capsule_data)
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@classmethod
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def path(cls):
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return cls._path
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@classmethod
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def fields(cls):
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return cls._fields
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@ -0,0 +1,58 @@
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# Copyright 2017 ARM Holdings
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#
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# 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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"""create capsule table
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Revision ID: a251f1f61217
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Revises: 75315e219cfb
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Create Date: 2017-06-20 17:12:56.105277
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"""
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# revision identifiers, used by Alembic.
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revision = 'a251f1f61217'
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down_revision = '75315e219cfb'
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branch_labels = None
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depends_on = None
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from alembic import op
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import sqlalchemy as sa
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from zun.db.sqlalchemy import models
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def upgrade():
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op.create_table(
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'capsule',
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sa.Column('created_at', sa.DateTime(), nullable=True),
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sa.Column('updated_at', sa.DateTime(), nullable=True),
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sa.Column('capsule_version', sa.String(length=255), nullable=True),
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sa.Column('kind', sa.String(length=36), nullable=True),
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sa.Column('project_id', sa.String(length=255), nullable=True),
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sa.Column('user_id', sa.String(length=255), nullable=True),
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sa.Column('restart_policy', sa.String(length=255), nullable=True),
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sa.Column('host_selector', sa.String(length=255), nullable=True),
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('uuid', sa.String(length=36), nullable=False),
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sa.Column('status', sa.String(length=255), nullable=True),
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sa.Column('status_reason', sa.Text(), nullable=True),
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sa.Column('message', models.JSONEncodedDict(), nullable=True),
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sa.Column('spec', models.JSONEncodedDict(), nullable=True),
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sa.Column('cpu', sa.Float(), nullable=True),
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sa.Column('memory', sa.String(length=255), nullable=True),
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sa.Column('meta_name', sa.String(length=255), nullable=True),
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sa.Column('meta_labels', models.JSONEncodedList(), nullable=True),
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sa.Column('containers_uuids', models.JSONEncodedList(), nullable=True),
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sa.PrimaryKeyConstraint('id'),
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)
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@ -288,3 +288,30 @@ class ComputeNode(Base):
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os = Column(String(64), nullable=True)
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kernel_version = Column(String(128), nullable=True)
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labels = Column(JSONEncodedDict)
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class Capsule(Base):
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"""Represents a capsule."""
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__tablename__ = 'capsule'
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__table_args__ = (
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schema.UniqueConstraint('uuid', name='uniq_capsule0uuid'),
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table_args()
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)
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uuid = Column(String(36), nullable=False)
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id = Column(Integer, primary_key=True, nullable=False)
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host_selector = Column(String(255))
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capsule_version = Column(String(255))
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kind = Column(String(255))
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restart_policy = Column(JSONEncodedDict)
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project_id = Column(String(255))
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user_id = Column(String(255))
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status = Column(String(20))
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status_reason = Column(Text, nullable=True)
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meta_labels = Column(JSONEncodedList)
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meta_name = Column(String(255))
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spec = Column(JSONEncodedDict)
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containers_uuids = Column(JSONEncodedList)
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cpu = Column(Float)
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memory = Column(String(255))
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@ -10,6 +10,7 @@
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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 zun.objects import capsule
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from zun.objects import compute_node
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from zun.objects import container
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from zun.objects import image
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@ -26,6 +27,7 @@ NUMATopology = numa.NUMATopology
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ResourceProvider = resource_provider.ResourceProvider
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ResourceClass = resource_class.ResourceClass
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ComputeNode = compute_node.ComputeNode
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Capsule = capsule.Capsule
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__all__ = (
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Container,
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@ -36,4 +38,5 @@ __all__ = (
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NUMANode,
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NUMATopology,
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ComputeNode,
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Capsule,
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)
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152
zun/objects/capsule.py
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152
zun/objects/capsule.py
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@ -0,0 +1,152 @@
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# Copyright 2017 ARM Holdings.
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#
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# 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_versionedobjects import fields
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from zun.db import api as dbapi
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from zun.objects import base
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from zun.objects import fields as z_fields
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@base.ZunObjectRegistry.register
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class Capsule(base.ZunPersistentObject, base.ZunObject):
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# Version 1.0: Initial version
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VERSION = '1.0'
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fields = {
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'capsule_version': fields.StringField(nullable=True),
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'kind': fields.StringField(nullable=True),
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'restart_policy': fields.DictOfStringsField(nullable=True),
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'host_selector': fields.StringField(nullable=True),
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# uuid is the infra-container id
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'id': fields.IntegerField(),
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'uuid': fields.UUIDField(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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'status': z_fields.ContainerStatusField(nullable=True),
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'status_reason': fields.StringField(nullable=True),
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'cpu': fields.FloatField(nullable=True),
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'memory': fields.StringField(nullable=True),
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# conclude the readable message
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# 'key': 'value'--> 'time':'message'
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# wait until zun notify is finished
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# 'message': fields.DictOfStringsField(nullable=True),
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'spec': z_fields.JsonField(nullable=True),
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'meta_name': fields.StringField(nullable=True),
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'meta_labels': z_fields.JsonField(nullable=True),
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'containers': fields.ListOfObjectsField('Container', nullable=True),
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'containers_uuids': fields.ListOfStringsField(nullable=True),
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# add volumes after Cinder integration is ready
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# 'volumes': fields.ListOfObjectsField(nullable=True),
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}
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@staticmethod
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def _from_db_object(capsule, db_capsule):
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"""Converts a database entity to a formal object."""
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for field in capsule.fields:
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if field != 'containers':
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setattr(capsule, field, db_capsule[field])
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capsule.obj_reset_changes()
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return capsule
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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 [Capsule._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_by_uuid(cls, context, uuid):
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"""Find a container based on uuid and return a :class:`Container` object.
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:param uuid: the uuid of a container.
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:param context: Security context
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:returns: a :class:`Container` object.
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"""
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db_capsule = dbapi.get_capsule_by_uuid(context, uuid)
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capsule = Capsule._from_db_object(cls(context), db_capsule)
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return capsule
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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 Container 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: filters when list containers, the filter name could be
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'name', 'image', 'project_id', 'user_id', 'memory'.
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For example, filters={'image': 'nginx'}
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:returns: a list of :class:`Container` object.
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"""
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db_capsules = dbapi.list_capsules(
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context, limit=limit, marker=marker, sort_key=sort_key,
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sort_dir=sort_dir, filters=filters)
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return Capsule._from_db_object_list(db_capsules, cls, context)
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@base.remotable
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def create(self, context):
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"""Create a Container 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.: Container(context)
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"""
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values = self.obj_get_changes()
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db_capsule = dbapi.create_capsule(context, values)
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self._from_db_object(self, db_capsule)
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@base.remotable
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def destroy(self, context=None):
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"""Delete the Container 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.: Container(context)
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"""
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dbapi.destroy_capsule(context, 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 Container.
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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.: Container(context)
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"""
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updates = self.obj_get_changes()
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dbapi.update_capsule(context, self.uuid, updates)
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self.obj_reset_changes()
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@ -353,6 +353,7 @@ object_data = {
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'ResourceProvider': '1.0-92b427359d5a4cf9ec6c72cbe630ee24',
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'ZunService': '1.1-b1549134bfd5271daec417ca8cabc77e',
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'ComputeNode': '1.6-33a173b969781644a95ea2925eb5cca2',
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'Capsule': '1.0-0dce1bd569773c35193d75c285226e75',
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}
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@ -1,4 +1,4 @@
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# Copyright 2017 Linaro Limited
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# Copyright 2017 ARM Holdings.
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#
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# 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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@ -1,4 +1,4 @@
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# Copyright (c) 2017 Linaro Limited
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# Copyright 2017 ARM Holdings.
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#
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# 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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