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Viewing changes to utopic/etc/init.d/rbdmap

  • Committer: Dimitri John Ledkov
  • Date: 2014-11-19 12:58:41 UTC
  • Revision ID: dimitri.j.ledkov@intel.com-20141119125841-98dr37roy8dvcv3b
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utopic/etc/init.d/rbdmap
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#!/bin/bash
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#
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# rbdmap Ceph RBD Mapping
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#
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# chkconfig: 2345 20 80
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# description: Ceph RBD Mapping
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### BEGIN INIT INFO
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# Provides:          rbdmap
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# Required-Start:    $network $remote_fs
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# Required-Stop:     $network $remote_fs
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# Should-Start:      ceph
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# Should-Stop:       ceph
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# X-Start-Before:    $x-display-manager
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# Default-Start:     2 3 4 5
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# Default-Stop:      0 1 6
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# Short-Description: Ceph RBD Mapping
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# Description:       Ceph RBD Mapping
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### END INIT INFO
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DESC="RBD Mapping:"
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RBDMAPFILE="/etc/ceph/rbdmap"
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. /lib/lsb/init-functions
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do_map() {
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        if [ ! -f "$RBDMAPFILE" ]; then
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                log_warning_msg "$DESC : No $RBDMAPFILE found."
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                exit 0
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        fi
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        # Read /etc/rbdtab to create non-existant mapping
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        RET=0
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        while read DEV PARAMS; do
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                case "$DEV" in
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                  ""|\#*)
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                        continue
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                        ;;
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                  */*)
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                        ;;
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                  *)
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                        DEV=rbd/$DEV
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                        ;;
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                esac
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                log_action_begin_msg "${DESC} '${DEV}'"
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                newrbd=""
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                MAP_RV=""
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                RET_OP=0
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                OIFS=$IFS
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                IFS=','
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                for PARAM in ${PARAMS[@]}; do
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                        CMDPARAMS="$CMDPARAMS --$(echo $PARAM | tr '=' ' ')"
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                done
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                IFS=$OIFS
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                if [ ! -b /dev/rbd/$DEV ]; then
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                        MAP_RV=$(rbd map $DEV $CMDPARAMS 2>&1)
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                        if [ $? -eq 0 ]; then
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                            newrbd="yes"
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                        else
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                            RET=$((${RET}+$?))
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                            RET_OP=1
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                        fi
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                fi
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                log_action_end_msg ${RET_OP} "${MAP_RV}"
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                if [ "$newrbd" ]; then
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                        ## Mount new rbd
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                        MNT_RV=""
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                        mount --fake /dev/rbd/$DEV >>/dev/null 2>&1 \
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                        && MNT_RV=$(mount -v /dev/rbd/$DEV 2>&1)
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                        [ -n "${MNT_RV}" ] && log_action_msg "mount: ${MNT_RV}"
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                        ## post-mapping
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                        if [ -x "/etc/ceph/rbd.d/${DEV}" ]; then
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                            log_action_msg "RBD Running post-map hook '/etc/ceph/rbd.d/${DEV}'"
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                            /etc/ceph/rbd.d/${DEV} map "/dev/rbd/${DEV}"
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                        fi
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                fi
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        done < $RBDMAPFILE
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        exit ${RET}
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}
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do_unmap() {
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        RET=0
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        ## Unmount and unmap all rbd devices
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        if ls /dev/rbd[0-9]* >/dev/null 2>&1; then
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                for DEV in /dev/rbd[0-9]*; do
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                        ## pre-unmapping
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                        for L in $(find /dev/rbd -type l); do
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                            LL="${L##/dev/rbd/}"
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                            if [ "$(readlink -f $L)" = "${DEV}" ] \
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                            && [ -x "/etc/ceph/rbd.d/${LL}" ]; then
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                                log_action_msg "RBD pre-unmap:  '${DEV}' hook '/etc/ceph/rbd.d/${LL}'"
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                                /etc/ceph/rbd.d/${LL} unmap "$L"
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                                break
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                            fi
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                        done
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                        log_action_begin_msg "RBD un-mapping: '${DEV}'"
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                        UMNT_RV=""
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                        UMAP_RV=""
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                        RET_OP=0
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                        MNT=$(findmnt --mtab --source ${DEV} --noheadings | awk '{print $1'})
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                        if [ -n "${MNT}" ]; then
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                            log_action_cont_msg "un-mounting '${MNT}'"
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                            local ULAZY=""
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                            local RUNLEVEL=$(runlevel | awk '{print $2}')
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                            if [ $? -eq 0 ]; then
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                                if [ "${RUNLEVEL}" -eq 0 ] \
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                                || [ "${RUNLEVEL}" -eq 6 ] ; then
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                                    ULAZY="-l"
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                                    if [ -x "$(which fuser)" ]; then
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                                        fuser -M -m "${MNT}" --kill -TERM
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                                    fi
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                                fi
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                            fi
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                            UMNT_RV=$(umount ${ULAZY} "${MNT}" 2>&1)
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                        fi
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                        if mountpoint -q "${MNT}"; then
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                            ## Un-mounting failed.
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                            RET_OP=1
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                            RET=$((${RET}+1))
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                        else
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                            ## Un-mapping.
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                            UMAP_RV=$(rbd unmap $DEV 2>&1)
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                            if [ $? -ne 0 ]; then
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                                RET=$((${RET}+$?))
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                                RET_OP=1
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                            fi
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                        fi
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                        log_action_end_msg ${RET_OP} "${UMAP_RV}"
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                        [ -n "${UMNT_RV}" ] && log_action_msg "${UMNT_RV}"
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                done
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        fi
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        exit ${RET}
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}
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case "$1" in
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  start)
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        do_map
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        ;;
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  stop)
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        do_unmap
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        ;;
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  restart|force-reload)
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        $0 stop
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        $0 start
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        ;;
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  reload)
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        do_map
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        ;;
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  status)
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        rbd showmapped
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        ;;
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  *)
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        log_success_msg "Usage: rbdmap {start|stop|restart|force-reload|reload|status}"
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        exit 1
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        ;;
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esac