Patchviasocket via bash

patchviasocket.py

#!/bin/bash
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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.

while getopts "n:p:h" opt; do
  case ${opt} in
    n )
      name=$OPTARG
      ;;
    p )
      cmdline=$(echo $OPTARG | tr '%' ' ')
      ;;
    h ) echo "Usage: $0 -n [VM name] -p [command line]"
      ;;
  esac
done

SOCK_FILE="/var/lib/libvirt/qemu/${name}.agent"
SSHKEY_FILE="/root/.ssh/id_rsa.pub.cloud"

if [ ! -e $SOCK_FILE ]; then
    echo "Socket file $SOCK_FILE not found!"
    exit 1
fi

if [ ! -e $SSHKEY_FILE ]; then
    echo "SSH public key file $SSHKEY_FILE not found!"
    exit 1
fi

MESSAGE="pubkey:$(cat $SSHKEY_FILE)\ncmdline:${cmdline}\n"
echo -e $MESSAGE | socat - UNIX-CONNECT:$SOCK_FILE