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* upgrade node mark 2Michael Gugino2017-12-121-74/+12
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* Refactor node upgrade to include less serial tasksMichael Gugino2017-12-121-0/+118
This commit moves the pulling of images, packages, and updating config files into a non-serialized play. The serialized play is now in charge of marking unschedulable, draining, stopping and restarting services, and marking schedulable. If rpm install / container download takes 60s per host, this will save 3 hours and 10 minutes at 200 hosts per cluster and forks of 20 hosts.