diff --git a/src/datastore_mad/remotes/ceph/snap_flatten b/src/datastore_mad/remotes/ceph/snap_flatten new file mode 100755 index 0000000000..3b6a7fb2d4 --- /dev/null +++ b/src/datastore_mad/remotes/ceph/snap_flatten @@ -0,0 +1,115 @@ +#!/bin/bash + +# -------------------------------------------------------------------------- # +# Copyright 2002-2015, OpenNebula Project (OpenNebula.org), C12G Labs # +# # +# Licensed under the Apache License, Version 2.0 (the "License"); you may # +# not use this file except in compliance with the License. You may obtain # +# a copy of the License at # +# # +# http://www.apache.org/licenses/LICENSE-2.0 # +# # +# Unless required by applicable law or agreed to in writing, software # +# distributed under the License is distributed on an "AS IS" BASIS, # +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # +# See the License for the specific language governing permissions and # +# limitations under the License. # +#--------------------------------------------------------------------------- # + +############################################################################### +# This script is used to flatten a snapshot of a persistent image +############################################################################### + +# -------- Set up the environment to source common tools & conf ------------ + +if [ -z "${ONE_LOCATION}" ]; then + LIB_LOCATION=/usr/lib/one +else + LIB_LOCATION=$ONE_LOCATION/lib +fi + +. $LIB_LOCATION/sh/scripts_common.sh + +DRIVER_PATH=$(dirname $0) +source ${DRIVER_PATH}/../libfs.sh +source ${DRIVER_PATH}/ceph.conf + +# -------- Get image and datastore arguments from OpenNebula core ------------ + +DRV_ACTION=$1 +ID=$2 + +XPATH="${DRIVER_PATH}/../xpath.rb -b $DRV_ACTION" + +unset i XPATH_ELEMENTS + +while IFS= read -r -d '' element; do + XPATH_ELEMENTS[i++]="$element" +done < <($XPATH /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/BRIDGE_LIST \ + /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/POOL_NAME \ + /DS_DRIVER_ACTION_DATA/IMAGE/SOURCE \ + /DS_DRIVER_ACTION_DATA/IMAGE/TARGET_SNAPSHOT \ + /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/CEPH_USER) + +unset i + +BRIDGE_LIST="${XPATH_ELEMENTS[i++]}" +POOL_NAME="${XPATH_ELEMENTS[i++]:-$POOL_NAME}" +RBD_SRC="${XPATH_ELEMENTS[i++]}" +SNAP_ID="${XPATH_ELEMENTS[i++]}" +CEPH_USER="${XPATH_ELEMENTS[i++]}" + +DST_HOST=`get_destination_host $ID` + +if [ -z "$DST_HOST" ]; then + error_message "Datastore template missing 'BRIDGE_LIST' attribute." + exit -1 +fi + +if [ -n "$CEPH_USER" ]; then + RBD="$RBD --id ${CEPH_USER}" +fi + +SNAP_FLATTEN_CMD=$(cat </dev/null) + + for child in \$CHILDREN; do + snap_id=\${child##*-} + child=\$child@\$snap_id + rm_children \$child + done + + $RBD snap unprotect \$rbd_snap + $RBD snap rm \$rbd_snap + fi + + $RBD rm \$rbd + } + + RBD_FORMAT=\$($RBD info $RBD_SRC | sed -n 's/.*format: // p') + + if [ "\${RBD_FORMAT}" != "2" ]; then + echo "Only RBD Format 2 is supported for this operation" >&2 + exit 1 + fi + + $RBD clone $RBD_SRC-$SNAP_ID@$SNAP_ID $RBD_SRC.flatten + $RBD flatten $RBD_SRC.flatten + + rm_children $RBD_SRC-0@0 + + $RBD rename $RBD_SRC.flatten $RBD_SRC +EOF +) + +ssh_exec_and_log "$DST_HOST" "$SNAP_FLATTEN_CMD" \ + "Error flattening snapshot $RBD_SRC-$SNAP_ID@$SNAP_ID"