How to safely reboot controllers without impact.

Solution In Progress - Updated -

Issue

  • Sometimes is necesary to apply fixes to controllers that require a reboot.
  • To have quorum, the cluster require at least 2 nodes to be active at all times.

Environment

Red Hat OpenStack Platform 10.0
Red Hat OpenStack Platform 9.0
Red Hat OpenStack Platform 8.0
Red Hat OpenStack Platform 7.0

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