[sheepdog] Exit status of node recovery

[Valerio Pachera]

Hi, I'm wondering if it could be good to have an exit status different
from 0 when there's a recovery running.

I wish to monitor if cluster is doing a recovery in nagios/icinga or
another application.

To get this info I have to "parse" the output of 'node recovery'
instead of the exit status.

  lines=$(dog vdi recovery | wc -l)
  if [ lines -ne 2 ]; then
      echo "recovery is running"
  fi

Instead of

  dog vdi recovery > /dev/null
  if [ $? -eq 1 ]; then
      echo "recovery is running"
  fi

What do you think?