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#!@BASH_SHELL@
#
# Copyright LINBIT, 2008
#
# 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 2, 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; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
# MA 02139, USA.
#
#
# DRBD resource management using the drbdadm utility.
#
LC_ALL=C
LANG=C
PATH=/bin:/sbin:/usr/bin:/usr/sbin
export LC_ALL LANG PATH
. $(dirname $0)/ocf-shellfuncs
drbd_verify_all()
{
# Do we have the drbdadm utility?
if ! which drbdadm >/dev/null 2>&1 ; then
ocf_log error "drbdadm not installed, not found in PATH ($PATH), or not executable."
return $OCF_ERR_INSTALLED
fi
# Is drbd loaded?
if ! grep drbd /proc/modules >/dev/null 2>&1; then
ocf_log error "drbd not found in /proc/modules. Do you need to modprobe?"
return $OCF_ERR_INSTALLED
fi
# Do we have the "resource" parameter?
if [ -n "$OCF_RESKEY_resource" ]; then
# Can drbdadm parse the resource name?
if ! drbdadm sh-dev $OCF_RESKEY_resource >/dev/null 2>&1; then
ocf_log error "DRBD resource \"$OCF_RESKEY_resource\" not found."
return $OCF_ERR_CONFIGURED
fi
# Is the backing device a locally available block device?
backing_dev=$(drbdadm sh-ll-dev $OCF_RESKEY_resource)
if [ ! -b $backing_dev ]; then
ocf_log error "Backing device for DRBD resource \"$OCF_RESKEY_resource\" ($backing_dev) not found or not a block device."
return $OCF_ERR_INSTALLED
fi
fi
return 0
}
drbd_status() {
role=$(drbdadm role $OCF_RESKEY_resource)
case $role in
Primary/*)
return $OCF_SUCCESS
;;
Secondary/*)
return $OCF_NOT_RUNNING
;;
esac
return $OCF_ERR_GENERIC
}
drbd_promote() {
drbdadm primary $OCF_RESKEY_resource || return $?
}
drbd_demote() {
drbdadm secondary $OCF_RESKEY_resource || return $?
}
if [ -z "$OCF_CHECK_LEVEL" ]; then
OCF_CHECK_LEVEL=0
fi
# This one doesn't need to pass the verify check
case $1 in
meta-data)
cat `echo $0 | sed 's/^\(.*\)\.sh$/\1.metadata/'` && exit 0
exit $OCF_ERR_GENERIC
;;
esac
# Everything else does
drbd_verify_all || exit $?
case $1 in
start)
if drbd_status; then
ocf_log debug "DRBD resource ${OCF_RESKEY_resource} already configured"
exit 0
fi
drbd_promote
if [ $? -ne 0 ]; then
exit $OCF_ERR_GENERIC
fi
exit $?
;;
stop)
if drbd_status; then
drbd_demote
if [ $? -ne 0 ]; then
exit $OCF_ERR_GENERIC
fi
else
ocf_log debug "DRBD resource ${OCF_RESKEY_resource} is not configured"
fi
exit 0
;;
status|monitor)
drbd_status
exit $?
;;
restart)
$0 stop || exit $OCF_ERR_GENERIC
$0 start || exit $OCF_ERR_GENERIC
exit 0
;;
verify-all)
exit 0
;;
*)
echo "usage: $0 {start|stop|status|monitor|restart|meta-data|verify-all}"
exit $OCF_ERR_GENERIC
;;
esac
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