F #5653 ceph|fs_lvm/mv: skip when VM is unknown (#1816)

src/tm_mad/ceph/mv

@@ -0,0 +1,106 @@
+#!/bin/bash
+
+# -------------------------------------------------------------------------- #
+# Copyright 2002-2021, 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.                                             #
+#--------------------------------------------------------------------------- #
+
+# MV <hostA:system_ds/disk.i|hostB:system_ds/disk.i> vmid dsid
+#    <hostA:system_ds/|hostB:system_ds/>
+#   - hostX is the target host to deploy the VM
+#   - 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)
+
+SRC=$1
+DST=$2
+
+VMID=$3
+DSID=$4
+
+if [ -z "${ONE_LOCATION}" ]; then
+    TMCOMMON=/var/lib/one/remotes/tm/tm_common.sh
+else
+    TMCOMMON=$ONE_LOCATION/var/remotes/tm/tm_common.sh
+fi
+
+. $TMCOMMON
+
+#-------------------------------------------------------------------------------
+# Return if moving a disk, we will move them when moving the whole system_ds
+# directory for the VM
+#-------------------------------------------------------------------------------
+SRC=$(fix_dir_slashes $SRC)
+DST=$(fix_dir_slashes $DST)
+
+SRC_PATH=$(arg_path $SRC)
+DST_PATH=$(arg_path $DST)
+
+SRC_HOST=$(arg_host $SRC)
+DST_HOST=$(arg_host $DST)
+
+SRC_DIR=$(dirname $SRC_PATH)
+DST_DIR=$(dirname $DST_PATH)
+
+SRC_DS_DIR=$(dirname  $SRC_PATH)
+SRC_VM_DIR=$(basename $SRC_PATH)
+
+if [ "$(is_disk $DST_PATH)" -eq 1 ]; then
+    exit 0
+fi
+
+#Do not try to move any files in PROLOG_MIGRATE_UNKNOWN (60),
+#PROLOG_MIGRATE_UNKNOWN_FAILURE (61) or UNKNOWN (16)
+LCM_STATE=$(lcm_state "$VMID")
+
+if [[ "$LCM_STATE" =~ ^(16|60|61)$ ]]; then
+    log "Not moving files from $SRC_HOST in FT mode or VM unknown"
+    exit 0
+fi
+
+# preserve .monitor content (if any)
+MONITOR_CMD=$(cat <<EOF
+if [ -r '${SRC_DIR}/.monitor' ]; then
+    cat '${SRC_DIR}/.monitor' 2>/dev/null || :
+fi
+EOF
+)
+
+MONITOR=$(ssh_monitor_and_log "$SRC_HOST" "$MONITOR_CMD" 'Get .monitor')
+
+ssh_make_path "$DST_HOST" "$DST_PATH" "$MONITOR"
+
+RANDOM_FILE=$(ssh "$DST_HOST" "mktemp -p \"$DST_DIR\"")
+trap "ssh $DST_HOST \"rm -f $RANDOM_FILE\"" EXIT
+if ssh "$SRC_HOST" "test -f $RANDOM_FILE"; then
+    log "Not moving $SRC to $DST, they are the same path"
+    exit 0
+fi
+
+log "Moving $SRC to $DST"
+
+ssh_exec_and_log "$DST_HOST" "rm -rf '$DST_PATH'" \
+    "Error removing target path to prevent overwrite errors"
+
+TAR_SSH=$(cat <<EOF
+set -e -o pipefail
+
+$TAR -C $SRC_DS_DIR --sparse -cf - $SRC_VM_DIR | $SSH $DST_HOST '$TAR -C $DST_DIR --sparse -xf -'
+rm -rf $SRC_PATH
+EOF
+)
+
+ssh_forward ssh_exec_and_log "$SRC_HOST" "$TAR_SSH" "Error copying disk directory to target host"
+
+exit 0

src/tm_mad/fs_lvm/mv

@@ -79,9 +79,11 @@ if [ "$(is_disk "$SRC_PATH")" -eq 1 ]; then
     DST_DEV="/dev/${DST_VG_NAME}/${LV_NAME}"
 
     # skip deactivate for `onevm resume` (after stop or undeploy)
+    # or if VM is unknown
     # 9(49) = PROLOG_RESUME(+FAILURE)
     # 31(50) = PROLOG_UNDEPLOY(+FAILURE)
-    if ! [[ "$LCM_STATE" =~ ^(9|31|49|50)$ ]]; then
+    # 16 = UNKNOWN
+    if ! [[ "$LCM_STATE" =~ ^(9|16|31|49|50)$ ]]; then
         # deactivate
         CMD=$(cat <<EOF
             set -ex -o pipefail
@@ -165,5 +167,10 @@ if [ "$SRC_PATH" == "$DST_PATH" ]; then
     exit 0
 fi
 
+# Return if VM is unknown, assume SRC host failure
+if [[ "$LCM_STATE" = "16" ]]; then
+    exit 0
+fi
+
 ssh_exec_and_log "$DST_HOST" "mv $SRC_PATH $DST_PATH" \
     "Error moving VM files to another System DS: $SRC_PATH to $DST_PATH in $DST_HOST"