How do I make the nova scheduler take the amount of disk space that an image requires into account when choosing a compute node?
Issue
- Customer wants instance to not lanch if there isn't enough ephemeral storage
- Customer has qcow2 instances growing beyond ephemeral storage and pausing
- Customer would rather instances fail to launch than have them get paused
Environment
- Red Hat OpenStack Platform 5.0
- Red Hat Enterprise Linux 7.0
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