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From jburwell <>
Subject [GitHub] cloudstack pull request: Convert patchviasocket to python (removes...
Date Fri, 06 May 2016 13:22:25 GMT
Github user jburwell commented on a diff in the pull request:
    --- Diff: scripts/vm/hypervisor/kvm/ ---
    @@ -0,0 +1,80 @@
    +#!/usr/bin/env python
    +# 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
    +# Unless required by applicable law or agreed to in writing,
    +# software distributed under the License is distributed on an
    +# KIND, either express or implied.  See the License for the
    +# specific language governing permissions and limitations
    +# under the License.
    +# This script connects to the system vm socket and writes the
    +# authorized_keys and cmdline data to it. The system VM then
    +# reads it from /dev/vport0p1 in cloud_early_config
    +import argparse
    +import os
    +import socket
    +SOCK_FILE = "/var/lib/libvirt/qemu/{name}.agent"
    +PUB_KEY_FILE = "/root/.ssh/"
    +MESSAGE = "pubkey:{key}\ncmdline:{cmdline}\n"
    +def read_pub_key(key_file):
    +    try:
    +        if os.path.isfile(key_file):
    +            with open(key_file, "r") as f:
    +                return
    +    except IOError:
    +        return None
    +def send_to_socket(sock_file, key_file, cmdline):
    +    pub_key = read_pub_key(key_file)
    +    if not pub_key:
    +        print("ERROR: ssh public key not found on host at {0}".format(key_file))
    --- End diff --
    Why throw this error out of ``read_pub_key`` and consolidate the error handling/return
in the exception handler on line 64?

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