senlin/TODO.rst

Senlin TODO Item List

This document records all workitems the team want to finish in a short-term (usually a development cycle which lasts 6 month). All jobs listed here are NOT in working progress which means developers can pick up any workitem they are interested in if they do have enough time to work on it. Developer should file a BluePrint in the launchpad to give a detailed description about their plan after deciding to work on a specific item. A patch should be proposed as well to remove related workitem from the TODO list after the BP gets approval.

HIGH PRIORITY

API

• Find and fill gaps with API-WG besides the one we already identified.

ENGINE

• Scaling Improvements [https://etherpad.openstack.org/p/newton-senlin-ha]
  • Ensure 'desired_capacity' will be controlled by users, not senlin engine or policies.
  • Always do health check before any scaling actions.
• Verify the works to be done after oslo.messaging version bump. [https://review.openstack.org/#/c/408114]

MIDDLE PRIORITY

API

• Support advanced filters as suggested by the API WG: Filtering Guidelines

PROFILE

• Add support to VM migration operations for nova server profile.
• Add support to snapshot/restore operations for nova server profile. The possible use case is rapid scale.
• Add support to nova server so that "block_device_mapping_v2" can reference an existing pool of cinder volumes.
• Add support to nova server so that "network" can reference an existing pool of neutron ports or fixed IPs.

POLICY

• Provide support for watching all objects we created on behalf of users, like loadbalancer which is created when attaching lb policy.
• Leverage other monitoring service for object health status monitoring.

DB

• Add db purge (senlin-manage) for deleting events and actions because they accumulate very fast.

LOW PRIORITY

ENGINE

• Allow actions to be paused and resumed. This is important for some background actions such as health checking.
• Provide support to oslo.notification and allow nodes to receive and react to those notifications accordingly: Autoscaling Notifications

PROFILE

• Support disk property update for os.nova.server profile

DOC

• Provide a sample conf file for customizing senlin options.

TEST

• Add more Rally profile and scenario support for Senlin.

OTHERS

• Integration with Glare for profile/policy specs storage. At least we may want to enable users to retrieve/reference heat templates from glare when creating profiles.