F #2353: Create volatiled disks as LV for fs_lvm

src/tm_mad/fs_lvm/mkimage

@@ -1 +0,0 @@
-../shared/mkimage

src/tm_mad/fs_lvm/mkimage

@@ -0,0 +1,97 @@
+#!/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.                                             #
+#--------------------------------------------------------------------------- #
+
+# mkimage size format host:remote_system_ds/disk.i vmid dsid
+#   - size in MB of the image
+#   - format for the image
+#   - remote_system_ds is the path for the system datastore in the host
+#   - vmid is the id of the VM
+#   - dsid is the target datastore (0 is the system datastore)
+
+SIZE=$1
+FSTYPE=$2
+DST=$3
+VM_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/tm/fs_lvm/fs_lvm.conf
+
+#-------------------------------------------------------------------------------
+# Set dst path and dir
+#-------------------------------------------------------------------------------
+
+DST_PATH=`arg_path $DST`
+DST_HOST=`arg_host $DST`
+DST_DIR=`dirname $DST_PATH`
+
+DS_SYS_ID=$(basename $(dirname $DST_DIR))
+DST_DS_PATH="$(dirname $(dirname $(dirname $DST_PATH)))"
+DISK_ID=$(basename ${DST_PATH} | cut -d. -f2)
+
+
+#-------------------------------------------------------------------------------
+# Create the logical volume and link it
+#-------------------------------------------------------------------------------
+
+LV_NAME="lv-one-$VM_ID-$DISK_ID"
+VG_NAME="vg-one-$DS_SYS_ID"
+DEV="/dev/${VG_NAME}/${LV_NAME}"
+
+# Execute lvcreate with a lock in the frontend
+CREATE_CMD=$(cat <<EOF
+    set -e -o pipefail
+    $SUDO $SYNC
+    $SUDO $LVSCAN
+    $SUDO $LVCREATE --wipesignatures n -L${SIZE}M -n $LV_NAME $VG_NAME
+EOF
+)
+
+LOCK="tm-fs_lvm-${DS_SYS_ID}.lock"
+exclusive "${LOCK}" 120 ssh_exec_and_log "$DST_HOST" "$CREATE_CMD" \
+        "Error creating LV named $LV_NAME"
+
+MKIMAGE_CMD=$(cat <<EOF
+    set -e -o pipefail
+    mkdir -p $DST_DIR
+
+    hostname -f >"${DST_DIR}/.host" || :
+
+    # zero the volume
+    if [ "${ZERO_LVM_ON_CREATE}" = "yes" ]; then
+        ${DD} if=/dev/zero of="${DEV}" bs=64k || :
+    fi
+
+    [ "$FSTYPE" = "swap" ] && mkswap ${DEV}
+
+    rm -f "$DST_PATH"
+    ln -s "$DEV" "$DST_PATH"
+EOF
+)
+
+ssh_exec_and_log "$DST_HOST" "$MKIMAGE_CMD" \
+        "Could not create image $DST_PATH"
+exit 0