Implement OpenNebula driver

2024-08-30 23:46:37 +03:00
parent 986cd11705
commit 2b96ac0b44
55 changed files with 2969 additions and 3 deletions
@@ -0,0 +1,127 @@
+#!/bin/bash
+
+# Vitastor OpenNebula driver
+# Copyright (c) Vitaliy Filippov, 2024+
+# License: Apache-2.0 http://www.apache.org/licenses/LICENSE-2.0
+
+# This script is used to create a VM image (SRC) of size (SIZE) and formatted as (FS)
+
+# -------- 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}/../../etc/datastore/datastore.conf
+
+# -------- Get mkfs and datastore arguments from OpenNebula core ------------
+
+DRV_ACTION=`cat -`
+ID=$1
+
+XPATH="${DRIVER_PATH}/../xpath.rb -b $DRV_ACTION"
+
+unset i XPATH_ELEMENTS
+
+while IFS= read -r -d '' element; do
+    XPATH_ELEMENTS[i++]="$element"
+done < <($XPATH \
+    /DS_DRIVER_ACTION_DATA/DATASTORE/BASE_PATH \
+    /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/RESTRICTED_DIRS \
+    /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/SAFE_DIRS \
+    /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/BRIDGE_LIST \
+    /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/POOL_NAME \
+    /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/IMAGE_PREFIX \
+    /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/STAGING_DIR \
+    /DS_DRIVER_ACTION_DATA/IMAGE/FORMAT \
+    /DS_DRIVER_ACTION_DATA/IMAGE/SIZE \
+    /DS_DRIVER_ACTION_DATA/IMAGE/FS \
+    /DS_DRIVER_ACTION_DATA/DATASTORE/TEMPLATE/VITASTOR_CONF)
+
+unset i
+
+BASE_PATH="${XPATH_ELEMENTS[i++]}"
+RESTRICTED_DIRS="${XPATH_ELEMENTS[i++]}"
+SAFE_DIRS="${XPATH_ELEMENTS[i++]}"
+BRIDGE_LIST="${XPATH_ELEMENTS[i++]}"
+POOL_NAME="${XPATH_ELEMENTS[i++]}"
+IMAGE_PREFIX="${XPATH_ELEMENTS[i++]}"
+STAGING_DIR="${XPATH_ELEMENTS[i++]:-$STAGING_DIR}"
+FORMAT="${XPATH_ELEMENTS[i++]}"
+SIZE="${XPATH_ELEMENTS[i++]}"
+FS="${XPATH_ELEMENTS[i++]}"
+VITASTOR_CONF="${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
+
+CLI=
+if [ -n "$VITASTOR_CONF" ]; then
+    CLI="$CLI --config_path ${VITASTOR_CONF}"
+fi
+if [ -n "$POOL_NAME" ]; then
+    CLI="$CLI --pool ${POOL_NAME}"
+fi
+
+set_up_datastore "$BASE_PATH" "$RESTRICTED_DIRS" "$SAFE_DIRS"
+
+IMAGE_NAME="${IMAGE_PREFIX}one-${ID}"
+
+# ------------ Image to save_as disk, no need to create a new image ------------
+
+if [ "$FORMAT" = "save_as" ]; then
+    echo "$IMAGE_NAME"
+    exit 0
+fi
+
+# ------------ Create the image in the repository ------------
+
+# FIXME: Duplicate code with tm/vitastor/mkimage
+
+MKIMAGE_CMD=$(cat <<EOF
+    set -e -o pipefail
+    export PATH=/usr/sbin:/sbin:\$PATH
+    vitastor-cli $CLI create --pool "${POOL_NAME}" "$IMAGE_NAME" --size "${SIZE}M"
+EOF
+)
+
+if [ -n "$FS" -o "$FORMAT" = "swap" ]; then
+    MKFS_CMD=`mkfs_command '$NBD' raw "$SIZE" "$SUPPORTED_FS" "$FS" "$FS_OPTS" | grep -v $QEMU_IMG`
+fi
+
+MKIMAGE_CMD=$(cat <<EOF
+    set -e -o pipefail
+    export PATH=/usr/sbin:/sbin:\$PATH
+    vitastor-cli $CLI create --pool "${POOL_NAME}" "$IMAGE_NAME" --size "${SIZE}M"
+EOF
+)
+if [ ! -z $FS ]; then
+    set -e -o pipefail
+
+    IMAGE_HASH=`generate_image_hash`
+    TMP_DST="$STAGING_DIR/$IMAGE_HASH"
+    FS_OPTS=$(eval $(echo "echo \$FS_OPTS_$FS"))
+
+    MKFS_CMD=`mkfs_command '$NBD' raw "$SIZE" "$SUPPORTED_FS" "$FS" "$FS_OPTS" | grep -v $QEMU_IMG`
+    MKIMAGE_CMD=$(cat <<EOF
+    $MKIMAGE_CMD
+    NBD=\$(sudo vitastor-nbd $CLI map --image "$IMAGE_NAME")
+    trap "sudo vitastor-nbd $CLI unmap \$NBD" EXIT
+    $MKFS_CMD
+EOF
+)
+fi
+
+ssh_exec_and_log "$DST_HOST" "$MKIMAGE_CMD" "Error registering $IMAGE_NAME in $DST_HOST"
+
+echo "$IMAGE_NAME"