Rebalance docker within fleet

rebalance.sh

#!/bin/bash -e
fleetctl list-units -fields=unit -no-legend | grep -v -e '@\|deis' | cut -d. -f1-2 | sort | uniq | while read name ; do
  max=$(fleetctl list-machines -no-legend | wc -l)
  count=$(fleetctl list-units -fields=unit -no-legend | grep -e "^$name" | wc -l)
  if  [ $count -gt $max ]; then
    echo "Skipping $name, there are $count deployed units on $max fleet machines"
  else
    echo "Processing $name"
    fleetctl list-units -fields=unit -no-legend | grep -e "^$name" | while read service; do
      others=$(echo $service | cut -d. -f1-2)
      tmpfile=/tmp/$service
      fleetctl cat $service > $tmpfile
      if ! grep X-Fleet $tmpfile > /dev/null; then
        echo "" >> $tmpfile
        echo "[X-Fleet]" >> $tmpfile
        echo "Conflicts=$others*" >> $tmpfile
        fleetctl destroy $tmpfile
        fleetctl start $tmpfile
	sleep 30
      else
        echo "Skipping $service, it already has an X-Fleet"
      fi
    done
  fi
done