When a compute service fails, the power states of the hosted VMs are not updated. A normal user querying his or her VMs does not get any indication about the failure. Also there is no indication about maintenance. This change will expose new attribute host_status to user querying his VMs. Attribute is only seen if policy allows. DocImpact: This adds API microversion Implements blueprint get-valid-server-state APIImpact Change-Id: I5abea08bdc27624a7f23a7db8964f8c2a7b0eaa7
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372 B