Github user wido commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/1533#discussion_r62118856
--- Diff: scripts/vm/hypervisor/kvm/patchviasocket.py ---
@@ -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
+#
+# 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.
+
+#
+# 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/id_rsa.pub.cloud"
+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 f.read()
+ 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))
+ return 1
+
+ # Keep old substitution from perl code:
+ cmdline = cmdline.replace("%", " ")
+
+ msg = MESSAGE.format(key=pub_key, cmdline=cmdline)
+
+ if not os.path.exists(sock_file):
+ print("ERROR: {0} socket not found".format(sock_file))
+ return 1
+
+ try:
+ s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+ s.connect(sock_file)
+ s.sendall(msg)
+ s.close()
+ except IOError as e:
--- End diff --
Is IOError the only exception which can occur here?
Wouldn't it be safer to but a 'return 1' in a 'finally' statement and
otherwise return 0?
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