Added data_transfer xapi plugin

1 files changed, 44 insertions, 0 deletions

diff --git a/plugins/xenserver/xenapi/etc/xapi.d/plugins/data_transfer b/plugins/xenserver/xenapi/etc/xapi.d/plugins/data_transfer
new file mode 100644
index 000000000..d310a65d9
--- /dev/null
+++ b/plugins/xenserver/xenapi/etc/xapi.d/plugins/data_transfer
@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+
+# Copyright 2010 United States Government as represented by the
+# Administrator of the National Aeronautics and Space Administration.
+# All Rights Reserved.
+#
+#    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.
+
+"""
+XenAPI Plugin for transfering data between host nodes
+"""
+
+import os.path
+import subprocess
+
+import XenAPIPlugin
+
+SSH_HOSTS = '/root/.ssh/known_hosts'
+DEVNULL = '/dev/null'
+KEYSCAN = '/usr/bin/ssh-keyscan'
+
+def _key_scan_and_add(host):
+    """SSH scans a remote host and writes the SSH key out to known_hosts"""
+    open(SSH_HOSTS, 'a').close()
+    null = open(DEVNULL, 'w')
+    known_hosts = open(SSH_HOSTS, 'a')
+    key = subprocess.Popen(['/usr/bin/ssh-keyscan', '-t', 'rsa', host],
+            stdout=subprocess.PIPE, stderr=null).communicate()[0].strip()
+    grep = subprocess.call(['/bin/grep', '-o', '%s' % key, SSH_HOSTS], 
+            stdout=null, stderr=null)
+    if grep == 1:
+        known_hosts.write(key)
+    null.close()
+    known_hosts.close()