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#!/bin/sh

# storage-tools - Additional utilities to manage storage related tasks
# Copyright (C) 2014-2017 Daniel Baumann <daniel.baumann@open-infrastructure.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

set -e

PROGRAM="$(basename ${0})"

OSDS="${@}"

Usage ()
{
	echo "Usage: ${PROGRAM} OSD1 OSD2.. OSDn"
	exit 1
}

if [ -z "${OSDS}" ]
then
	Usage
fi

if [ ! -x /usr/bin/jq ]
then
	echo "'${PROGRAM}': /usr/bin/jp - no such file." >&2
	exit 1
fi

# Run
for OSD in ${OSDS}
do
	HOST="$(ceph osd find ${OSD} | jq -r '.["crush_location"]["host"]')"

	# remove the failed OSD
	ceph osd out ${OSD}

	# stop the osd.${OSD} daemon on the respective storage host
	ssh ceph-deploy@${HOST} sudo service ceph-osd@${OSD} stop

	# unmount the disk
	ssh ceph-deploy@${HOST} sudo umount /var/lib/ceph/osd/ceph-${OSD}

	# remove osd from crush map
	ceph osd crush remove osd.${OSD}

	# remove cephx key
	ceph auth del osd.${OSD}

	# mark osd as down
	ceph osd down osd.${OSD}

	# remove the osd
	ceph osd rm osd.${OSD}
done