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DELETE /org/<org>/hagroup/<name>
Node Resource:
In addition to the new hagroup resource, the node resource is also extended with a new field called "ha_group" that contains a reference to the HA group in which this node is a member. This field is updated for all nodes in an HA group when a new HA group is created, updated or deleted. Updates to this field are atomic with updates to the hagroup resource.
Agbot APIs
To tell the Agbot that the node is ready to upgrade the agent.
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