Unified Object Model
We need a unified notion of an object which can be passed over RPC while retaining rich functionality, localized (de-)serialization code, and lazy-loading of additional data directly from the DB or over RPC. This will provide the basis for versioned object support in the future.
Blueprint information
- Status:
- Complete
- Approver:
- Russell Bryant
- Priority:
- High
- Drafter:
- None
- Direction:
- Approved
- Assignee:
- Dan Smith
- Definition:
- Approved
- Series goal:
- Accepted for havana
- Implementation:
-
Implemented
- Milestone target:
-
2013.2
- Started by
- Chris Behrens
- Completed by
- Dan Smith
Related branches
Related bugs
Sprints
Whiteboard
More detailed proposal for the whole thing here:
https:/
Gerrit topic: https:/
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Add base object model
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Add instance object
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Make a few places tolerant of sys_meta being a dict
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WIP: Use Instance Objects for Start/Stop
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WIP: Lists of instance objects
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WIP: Use InstanceList object for init_host
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Make pylint ignore nova/objects/
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Add fake_instance.py
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Make xenapi/host use instance objects for _uuid_find
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Make xenapi use Instance object for host_maintenanc
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Remove unused methods from VirtAPI
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Make sync_power_state routines use InstanceList
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Make instance object tolerate isotime strings
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Make object actions pass positional arguments
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Make the datetime utility function coerce to UTC
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Add Instance.info_cache
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Add base mixin class for object lists
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Fix sys_meta access in prep for instance object
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Add BlockDeviceMapping objects
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Add deleted flag to NovaObject base
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Fix obj_load() in NovaObject base class
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Unregister test objects when finished
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Make NovaObject support extra attributes in items()
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Remove straggling use of all-kwarg object methods
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Use InstanceList for _heal_instance_
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Remove a layer of nesting in _poll_unconfirm
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Make _poll_unconfirm
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Fix importing InstanceInfoCache during register_all()
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Fix orphaned instance from get_by_uuid() and _from_db_object()
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Fix serialization of iterable types
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Add basic SecurityGroup model
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Add Instance.
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Fill context on objects in lists
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Fix metadata access in prep for instance objects
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Make InstanceList filter non-column extra attributes
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WIP Make instance show and index use objects
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Add basic InstanceFault model
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Add Instance.fault
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Make NovaObject support the 'in' operator
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Fix instance object's use of a db query method parameter
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Make info_cache not break network_info
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Prepare fake instance stubs for objects
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Make fake_network tolerant of objects
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Refactored compute/
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Refactor db.security_
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Add obj_to_dict() to recursively convert objects to dicts
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DNM Make to_primitive() serialize netaddr.IPAddress
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Add update() method to NovaObject for dict compatibility
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Add Instance.
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Break out compute API unit tests
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Break out Compute Manager unit tests
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Convert pause/unpause to use objects
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Convert suspend/resume to use objects
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Add object (de)serialization support to cells
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Add cells get_cell_type() method
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Add expected_vm_state to Instance.save()
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Prep Instance.save() to handle cells DB updates
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Unit-ify compute_api delete tests
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Fix default argument values on get_all_
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Add _set_instance_
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Make notifications properly string-convert instance datetimes
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Update v3 servers API with objects changes
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Make db/api strip timezones for datetimes
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Make compute_
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Fix object_compat decorator for non-kwargs
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WIP Make delete/soft_delete use objects
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Make compute_api.get() use objects natively
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Make InfoCache.
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Better start/stop handling for cells
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Make servers::update() use Instance.save() to do the work
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Make admin API state resets use Instance.save()
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Move special cells logic for start/stop
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Convert network API to use InfoCache object
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Make Instance object properly update *metadata
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Fix Instance object handling of implied fields
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Fix shelve's use of system_metadata
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Make shelve pass old-world instance object to conductor
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Fix change detection logic in conductor
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Enhance object inheritance
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Split NovaObject into 2 base classes
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Add new-world Quota object
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Make _provision_
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Switch delete to use new-world Quotas object
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Pass objects for revert and confirm resizes
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Make compute_api use Migration object
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Make compute_api migrate/resize paths use instance objects
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Add scheduler utils unit tests
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Fixup some non-unity-ness to conductor tests
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Unit-ify the compute API resize tests
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Convert admin_actions ext tests to unit tests
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Add Migration object
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Deprecate conductor migration_create()
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Move prep_resize paths to use objects
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Make compute_api use objects for lock/unlock
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Fix prep_resize() stale system_metadata issue
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Make backup and snapshot use objects
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Convert reset_network to use instance object
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Make inject_network_info use objects
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Change resize_instance paths to use objects
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Change finish_resize paths to use objects
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Convert _poll_unconfirm
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Change finish_
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Deprecate conductor migration_get()
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Fix instance metadata access in xenapi
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Fixes auto comfirmation failed because db access
Work Items
Dependency tree
* Blueprints in grey have been implemented.
