Implement OpenNebula driver

opennebula/remotes/vmm/kvm/save.vitastor

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# Vitastor OpenNebula driver
+# Copyright (c) Vitaliy Filippov, 2024+
+# License: Apache-2.0 http://www.apache.org/licenses/LICENSE-2.0
+
+DRIVER_PATH=$(dirname $0)
+
+source $DRIVER_PATH/../../etc/vmm/kvm/kvmrc
+source $DRIVER_PATH/../../scripts_common.sh
+
+DEPLOY_ID=$1
+FILE=$2
+VM_ID=$4
+DS_ID=$5
+
+XPATH="${DRIVER_PATH}/../../datastore/xpath.rb --stdin"
+
+unset i j XPATH_ELEMENTS
+
+while IFS= read -r -d '' element; do
+    XPATH_ELEMENTS[i++]="$element"
+done < <($XPATH \
+    /VMM_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/VITASTOR_CONF \
+    /VMM_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/IMAGE_PREFIX \
+    /VMM_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/POOL_NAME)
+
+VITASTOR_CONF="${XPATH_ELEMENTS[j++]}"
+IMAGE_PREFIX="${XPATH_ELEMENTS[j++]}"
+POOL_NAME="${XPATH_ELEMENTS[j++]}"
+
+CLI=vitastor-cli
+if [ -n "$VITASTOR_CONF" ]; then
+    CLI="$CLI --config_path ${VITASTOR_CONF}"
+fi
+if [ -n "$POOL_NAME" ]; then
+    CLI="$CLI --pool ${POOL_NAME}"
+fi
+
+DST_IMAGE="${IMAGE_PREFIX}one-sys-${VM_ID}-checkpoint"
+
+exec_and_log "$CLI dd if=$FILE oimg=$DST_IMAGE" "Error importing checkpoint into $DST_IMAGE"
+exec_and_log "$RM -f $FILE" "Error removing checkpoint ($FILE)"
+
+exit 0