delete

#!/bin/bash

# -------------------------------------------------------------------------- #
# Copyright 2002-2023, 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.                                             #
#--------------------------------------------------------------------------- #

# DELETE <host:remote_system_ds/disk.i|host:remote_system_ds/> vmid dsid
#   - host is the target host to deploy the VM
#   - 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)

echo "ssh $(date '+%Y-%m-%d %H:%M:%S') delete" >> /var/log/one/debug.log

DST=$1

VMID=$2
DSID=$3

if [ -z "${ONE_LOCATION}" ]; then
    TMCOMMON=/var/lib/one/remotes/tm/tm_common.sh
    SSH_RC=/var/lib/one/remotes/etc/tm/ssh/sshrc
    SSH_UTILS=/var/lib/one/remotes/tm/custom_ssh/ssh_utils.sh
else
    TMCOMMON=$ONE_LOCATION/var/remotes/tm/tm_common.sh
    SSH_RC=$ONE_LOCATION/var/remotes/etc/tm/ssh/sshrc
    SSH_UTILS=$ONE_LOCATION/var/remotes/tm/custom_ssh/ssh_utils.sh
fi

. $TMCOMMON
. $SSH_RC
. $SSH_UTILS

#-------------------------------------------------------------------------------
# Delete recovery snapshots from replica_host, skip it for ACTION=14 (RECREATE)
#-------------------------------------------------------------------------------
REPLICA_HOST=$(get_replica_host $DSID)
if [ -n "$REPLICA_HOST" ]; then
    XPATH="$(dirname $0)/../../datastore/xpath.rb"
    HIST='/VM/HISTORY_RECORDS/HISTORY[last()]/ACTION'
    ACTION="$(awk 'gsub(/[\0]/, x)' <(onevm show $VMID -x|$XPATH $HIST))"

    if [ $ACTION != "14" ]; then
        ssh_exec_and_log "$REPLICA_HOST" \
            "rm -rf ${REPLICA_RECOVERY_SNAPS_DIR}/$VMID" \
            "Error deleting ${REPLICA_RECOVERY_SNAPS_DIR}/$VMID"
    fi
fi

#-------------------------------------------------------------------------------
# Return if deleting a disk, we will delete them when removing the
# remote_system_ds directory for the VM (remotely)
#-------------------------------------------------------------------------------
DST_PATH=`arg_path $DST`
DST_HOST=`arg_host $DST`

log "Deleting $DST_PATH"

delete_file=$(cat <<EOF
[ -e "$DST_PATH" ] || exit 0

times=10
function="rm -rf $DST_PATH"

count=1

ret=\$(\$function)
error=\$?

while [ \$count -lt \$times -a "\$error" != "0" ]; do
    sleep 1
    count=\$(( \$count + 1 ))
    ret=\$(\$function)
    error=\$?
done

[ "x\$error" = "x0" ]
EOF
)

ssh_exec_and_log $DST_HOST "$delete_file" "Error deleting $DST_PATH"