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#!/bin/bash
# Vitastor OpenNebula driver
# Copyright (c) Vitaliy Filippov, 2024+
# License: Apache-2.0 http://www.apache.org/licenses/LICENSE-2.0
# DELETE <host:remote_system_ds/disk.i|host:remote_system_ds/>
# - host is the target host to deploy the VM
# - remote_system_ds is the path for the system datastore in the host
DST=$1
VM_ID=$2
DS_ID=$3
#--------------------------------------------------------------------------------
if [ -z "${ONE_LOCATION}" ]; then
TMCOMMON=/var/lib/one/remotes/tm/tm_common.sh
LIB_LOCATION=/usr/lib/one
else
TMCOMMON=$ONE_LOCATION/var/remotes/tm/tm_common.sh
LIB_LOCATION=$ONE_LOCATION/lib
fi
DRIVER_PATH=$(dirname $0)
source $TMCOMMON
source ${DRIVER_PATH}/../../datastore/libfs.sh
#-------------------------------------------------------------------------------
# Process destination
#-------------------------------------------------------------------------------
DST_PATH=`arg_path $DST`
DST_HOST=`arg_host $DST`
XPATH="${DRIVER_PATH}/../../datastore/xpath.rb --stdin"
#-------------------------------------------------------------------------------
# Delete and exit if directory
#-------------------------------------------------------------------------------
if [ `is_disk $DST_PATH` -eq 0 ]; then
# Directory: delete checkpoint and directory
unset i j XPATH_ELEMENTS
while IFS= read -r -d '' element; do
XPATH_ELEMENTS[i++]="$element"
done < <(onedatastore show -x $DS_ID | $XPATH \
/DATASTORE/TEMPLATE/SOURCE \
/DATASTORE/TEMPLATE/CLONE \
/DATASTORE/TEMPLATE/VITASTOR_CONF \
/DATASTORE/TEMPLATE/IMAGE_PREFIX \
/DATASTORE/TEMPLATE/POOL_NAME)
SRC="${XPATH_ELEMENTS[j++]}"
CLONE="${XPATH_ELEMENTS[j++]}"
VITASTOR_CONF="${XPATH_ELEMENTS[j++]}"
IMAGE_PREFIX="${XPATH_ELEMENTS[j++]:-one}"
POOL_NAME="${XPATH_ELEMENTS[j++]}"
CLI=vitastor-cli
if [ -n "$VITASTOR_CONF" ]; then
CLI="$CLI --config_path ${VITASTOR_CONF}"
fi
SRC_CHECKPOINT="${IMAGE_PREFIX}-sys-${VM_ID}-checkpoint"
ssh_exec_and_log "$DST_HOST" "$CLI rm $SRC_CHECKPOINT 2>/dev/null || exit 0" \
"Error deleting $SRC_CHECKPOINT in $DST_HOST"
log "Deleting $DST_PATH"
ssh_exec_and_log "$DST_HOST" "rm -rf $DST_PATH" "Error deleting $DST_PATH"
exit 0
fi
#-------------------------------------------------------------------------------
# Get Image information
#-------------------------------------------------------------------------------
DISK_ID=$(echo "$DST_PATH" | $AWK -F. '{print $NF}')
# Reads the disk parameters -- taken from image datastore
unset i j XPATH_ELEMENTS
while IFS= read -r -d '' element; do
XPATH_ELEMENTS[i++]="$element"
done < <(onevm show -x $VM_ID | $XPATH \
/VM/TEMPLATE/DISK[DISK_ID=$DISK_ID]/SOURCE \
/VM/TEMPLATE/DISK[DISK_ID=$DISK_ID]/CLONE \
/VM/TEMPLATE/DISK[DISK_ID=$DISK_ID]/VITASTOR_CONF \
/VM/TEMPLATE/DISK[DISK_ID=$DISK_ID]/IMAGE_PREFIX \
/VM/TEMPLATE/DISK[DISK_ID=$DISK_ID]/POOL_NAME)
SRC="${XPATH_ELEMENTS[j++]}"
CLONE="${XPATH_ELEMENTS[j++]}"
VITASTOR_CONF="${XPATH_ELEMENTS[j++]}"
IMAGE_PREFIX="${XPATH_ELEMENTS[j++]:-one}"
POOL_NAME="${XPATH_ELEMENTS[j++]}"
if is_undeployed "$VM_ID" "$DST_HOST"; then
# get BRIDGE_LIST from datastore
XPATH="${DRIVER_PATH}/../../datastore/xpath.rb --stdin"
IFS= read -r -d '' BRIDGE_LIST < <(onedatastore show -x "$DS_ID" \
| $XPATH /DATASTORE/TEMPLATE/BRIDGE_LIST )
if [ -n "$BRIDGE_LIST" ]; then
DST_HOST=$(get_destination_host)
fi
fi
# No need to delete not cloned images
if [ "$CLONE" = "NO" ]; then
exit 0
fi
CLI=vitastor-cli
if [ -n "$VITASTOR_CONF" ]; then
CLI="$CLI --config_path ${VITASTOR_CONF}"
fi
if [ -n "$SRC" ]; then
# cloned, so the name will be "one-<imageid>-<vmid>-<diskid>"
SRC_IMAGE="${SRC}-${VM_ID}-${DISK_ID}"
else
# volatile
SRC_IMAGE="${IMAGE_PREFIX}-sys-${VM_ID}-${DISK_ID}"
fi
# Delete the image
log "Deleting $DST_PATH"
DELETE_CMD=$(cat <<EOF
$CLI rm $SRC_IMAGE
EOF
)
ssh_exec_and_log "$DST_HOST" "$DELETE_CMD" "Error deleting $SRC_IMAGE in $DST_HOST"