disk_check.sh

#!/bin/bash
#
# This script checks if a disk|partition is allready an Ceph OSD and
# checks also if the device entered is a block device
#
# Expects a device (/dev/sda) as an argument and NOT a partition
# (/dev/sda1)
#
# Written by Richard Arends, mainly for puppet-ceph:
#   https://github.com/stackforge/puppet-ceph
#
# Exit codes:
#
#   0: An active 'ceph data' partition is found on $DEVICE
#   1: An active 'ceph data' partition is NOT found on $DEVICE
#   100: There was an error with the ceph-disk command
#   101: Device ${DEVICE} is not a block device
#
DEVICE="$1"

doExit() {
    E_CODE=$1

    echo $E_CODE
    exit $E_CODE
}

###
# Main
###
if ! test -b "${DEVICE}"; then
    # Device ${DEVICE} is not a block device
    doExit 101
fi

CEPH_DISK_OUTPUT=$(ceph-disk list)
CEPH_DISK_RETVAL=$(echo $?)
if [ $CEPH_DISK_RETVAL -ne 0 ]; then
    # There was an error with the ceph-disk command
    doExit 100
fi

CEPH_DISK_LIST_RETVAL=$(echo "${CEPH_DISK_OUTPUT}"|grep -q " *${DEVICE}.*ceph data, active";echo $?)

doExit "${CEPH_DISK_LIST_RETVAL}"