Script to out, stop, and remove all (unencrypted) Ceph OSDs and partitions from a system

nukeAllCephOSDs.sh

#!/bin/bash

osds=($(systemctl list-units | grep -iE 'ceph-osd@[[:digit:]]+\.service' | tr -s ' ' | cut -f2 -d' ' | cut -f2 -d'@' | cut -f1 -d'.'))

for i in "${osds[@]}"; do
  echo "***Outing OSD $i"
  ceph osd out $i
done

read -p "***Pausing for replication/recovery. Press [ENTER] when done..." $DONE

for i in "${osds[@]}"; do
  echo "***Stopping OSD $i"
  service ceph-osd@$i stop
  echo "***Removing OSD $i from CRUSH map"
  ceph osd crush remove osd.$i
  echo "***Removing OSD $i from auth list"
  ceph auth del osd.$i
  echo "***Removing OSD $i"
  ceph osd rm $i
done

echo "***Unmounting OSD dirs"
umount /var/lib/ceph/osd/ceph-*

echo "***Deleting OSD Data partitions"
for p in $(lsblk -okname,parttype,mountpoint | grep '4fbd7e29-9d25-41b8-afd0-062c0ceff05d' | cut -f1 -d' '); do
  device=${p:0:3}
  partition=${p:3}

  parted -s "/dev/${device}" mklabel gpt
done

echo "***Deleting OSD Journal partitions"
for p in $(lsblk -okname,parttype,mountpoint | grep '45b0969e-9b03-4f30-b4c6-b4b80ceff106' | cut -f1 -d' '); do
  device=${p:0:3}
  partition=${p:3}

  parted -s "/dev/${device}" rm "${partition}"
done