1. Proposed title of this feature request

Customize automatic defrag scheduling

2. What is the nature and description of the request?

Customer would like to have some customizations on when the automatic etcd defrag is triggered. For example, they would like to limit the dfrag to be done during the night out of business hours.

3. Why does the customer need this? (List the business requirements here)

Customer wants to control the task launch to avoid performance problems or outages caused by the defrag during peak hours

4. List any affected packages or components.

etcd

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Requirements from etcd team:

• proper versioned schema
• enable/disable
• tuning of degrade parameters, eg https://github.com/openshift/cluster-etcd-operator/pull/812