Jim Bach 8f4643d85c Make providing a keypair optional
A user may not rely on nova-keypairs to access their cluster
such as a preconfigured SSSD.

story: 2004402
task: 28035

Change-Id: I77fbdc174d3dddfd312fb8dac20516314d4c182e
2018-11-21 16:17:46 +00:00
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