anchor.diff:  
   `$ oc logs -f -n openshift-machine-config-operator machine-config-daemon-<hash> -c machine-config-daemon`
   
  -|mcd_update_state
  -|[]string{"config", "err"}
  +|`mcd_update_state`
  +|`[]string{"config", "err"}`
   |Logs success or failure of configuration updates and the corresponding errors.
   |The expected value is `rendered-master/rendered-worker-XXXX`. If the update fails, an error is present.
   
  
positive.code: 
  `$ oc debug node/<node> -- chroot /host journalctl -u kubelet`
  
  |mcd_reboot_err*
  |[]string{"message", "err"}
  |Logs the failed reboots and the corresponding errors. *
  |This is expected to be empty, which indicates a successful reboot.
  
  
negative.code: 
  `$ oc logs -f -n openshift-machine-config-operator machine-config-daemon-<hash> -c machine-config-daemon`
  
  |`mcd_pivot_err*`
  |`[]string{"pivot_target", "err"}`
  |Logs errors encountered during pivot. *
  |Pivot errors might prevent OS upgrades from proceeding.
  
  