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ln
executable file
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ln
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#!/bin/bash
# -------------------------------------------------------------------------- #
# Copyright 2002-2019, OpenNebula Project, OpenNebula Systems #
# #
# 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. #
#--------------------------------------------------------------------------- #
# ln fe:SOURCE host:remote_system_ds/disk.i vmid dsid
# - fe is the front-end hostname
# - SOURCE is the path of the disk image in the form DS_BASE_PATH/disk
# - host is the target host to deploy the VM
# - remote_system_ds is the path for the system datastore in the host
# - vmid is the id of the VM
# - dsid is the source datastore (0 is the images datastore)
SRC=$1
DST=$2
VM_ID=$3
DS_ID=$4
#--------------------------------------------------------------------------------
if [ -z "${ONE_LOCATION}" ]; then
TMCOMMON=/var/lib/one/remotes/tm/tm_common.sh
else
TMCOMMON=$ONE_LOCATION/var/remotes/tm/tm_common.sh
fi
DRIVER_PATH=$(dirname $0)
source $TMCOMMON
source ${DRIVER_PATH}/../../datastore/libfs.sh
source ${DRIVER_PATH}/../../etc/datastore/linstor_un/linstor_un.conf
source ${DRIVER_PATH}/../../datastore/linstor_un/linstor_utils.sh
#-------------------------------------------------------------------------------
# Process destination
#-------------------------------------------------------------------------------
DS_ID=$(echo $DST | $AWK -F/ '{print $(NF-2)}')
DST_HOST=`arg_host $DST`
DISK_ID=$(echo $DST| $AWK -F. '{print $NF}')
XPATH="${DRIVER_PATH}/../../datastore/xpath.rb --stdin"
unset i j XPATH_ELEMENTS
while IFS= read -r -d '' element; do
XPATH_ELEMENTS[i++]="$element"
done < <(onedatastore show -x $DS_ID | $XPATH \
/DATASTORE/TEMPLATE/LS_CONTROLLERS \
/DATASTORE/TEMPLATE/LS_CERTFILE \
/DATASTORE/TEMPLATE/LS_KEYFILE \
/DATASTORE/TEMPLATE/LS_CAFILE \
/DATASTORE/TEMPLATE/DISKLESS_POOL)
LS_CONTROLLERS="${XPATH_ELEMENTS[j++]}"
LS_CERTFILE="${XPATH_ELEMENTS[j++]}"
LS_KEYFILE="${XPATH_ELEMENTS[j++]}"
LS_CAFILE="${XPATH_ELEMENTS[j++]}"
DISKLESS_POOL="${XPATH_ELEMENTS[j++]:-DfltDisklessStorPool}"
linstor_load_keys
#-------------------------------------------------------------------------------
# Get Image information
#-------------------------------------------------------------------------------
SRC_DEV=`arg_path $SRC`
SRC_RES="$(echo "$SRC_DEV" | $AWK -F/ '{print $(NF-1)}')"
DST_PATH=`arg_path $DST`
DST_DIR=`dirname $DST_PATH`
#-------------------------------------------------------------------------------
# Link the image
#-------------------------------------------------------------------------------
# Set properties
linstor_exec_and_log \
"resource-definition set-property $SRC_RES Aux/one/VM_ID $VM_ID"
linstor_exec_and_log \
"resource-definition set-property $SRC_RES Aux/one/DS_ID $DS_ID"
linstor_exec_and_log \
"resource-definition set-property $SRC_RES Aux/one/DISK_ID $DISK_ID"
# Attach diskless resource on destination host
linstor_attach_diskless "$DST_HOST" "$SRC_RES" "$DISKLESS_POOL"
LINK_CMD=$(cat <<EOF
set -e -o pipefail
mkdir -p $DST_DIR
rm -f $DST_PATH
ln -s $SRC_DEV $DST_PATH
EOF
)
ssh_exec_and_log "$DST_HOST" "$LINK_CMD" \
"Error linking $SRC_DEV to $DST_PATH on $DST_HOST"
exit 0