====== Upgrading slaves ======

  * Check there is no job running on that node
  * [[https://ci.freebsd.org/computer/]]%%<%%nodename>/ -> "Mark this node temporarily offline"
  * /etc/clusteradm/binaryupgrade.sh -ARP
  * [[https://ci.freebsd.org/computer/]]%%<%%nodename>/ -> "Bring this node back online"

====== Upgrading master host ======

  * "Manage Jenkins" -> "Prepare for Shutdown"
  * Wait for running jobs complete
  * Upgrade host

====== Upgrading master Jenkins ======

====== Upgrading master plugins ======