FreshPorts archive-snapshots-for-backup.sh

archive-snapshots-for-backup.sh

#!/bin/sh

ACTION=$1

BASENAME="/usr/bin/basename"
MOUNT="/sbin/mount"
UMOUNT="/sbin/umount"
ZFS="/sbin/zfs"

DATASETROOT="main_tank/data/freshports/backend/queues"

DATASETS="${ZFS} list -r -H -o name ${DATASETROOT}"

SNAPSHOTDIRECTORY='/.zfs/snapshot/'

SNAPNAME="bu"
TMP_MNT_POINT="/mnt/freshports-queues"

case ${ACTION} in
  "create")
     ${ZFS} snapshot -r "${DATASETROOT}@${SNAPNAME}"
     for dataset in `${DATASETS}`
     do
       echo mkdir -p ${TMP_MNT_POINT}/${dataset}
       mkdir -p ${TMP_MNT_POINT}/${dataset}
     done

     for dataset in `${DATASETS}`
     do
       if [ ${dataset} != ${DATASETROOT} ]
       then
         echo ${MOUNT} -t zfs -o ro ${dataset}@${SNAPNAME} ${TMP_MNT_POINT}/${dataset}
         ${MOUNT} -t zfs -o ro ${dataset}@${SNAPNAME} ${TMP_MNT_POINT}/${dataset}
       fi
     done

     ;;


  "destroy")
    for dataset in `${DATASETS}`
    do
      # Ignore the jail root.  Nothing in there to backup.
      if [ "${dataset}" = "${DATASETROOT}" ]
      then
         continue
      fi
 
       echo ${UMOUNT} ${TMP_MNT_POINT}/${dataset}
    done
    ${ZFS} destroy -r "${DATASETROOT}@${SNAPNAME}"
    ;;

esac