-
Notifications
You must be signed in to change notification settings - Fork 6
/
fixpbds.py
91 lines (78 loc) · 3.39 KB
/
fixpbds.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
#!/usr/bin/env python
# Copyright (c) Cloud Software Group, Inc.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1) Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2) Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials
# provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.
# This example demonstrates how to alter the device config parameters of PBD
# objects, for example, in the case the storage server configuration has changed.
#
# This is somewhat more convoluted than simple parameter changes, as PBDs
# are read-only. This is to ensure they are always consistent with the
# state of the world.
# The parameters to change are defined in the variable 'mapping'
import XenAPI
import sys
def main(session, sr, mapping):
# Get all the PBDs associated with the SR
sr = session.xenapi.SR.get_by_uuid(sr)
pbds = session.xenapi.SR.get_PBDs(sr)
# Unplug them all
for pbd in pbds:
session.xenapi.PBD.unplug(pbd)
# Now delete and recreate them one by one, updating the dconf
for pbd in pbds:
rec=session.xenapi.PBD.get_record(pbd)
newdconf=rec['device_config']
newdconf.update(mapping)
session.xenapi.PBD.destroy(pbd)
print "host=",rec['host']," sr=",rec['SR'],"newdconf=",newdconf
pbd=session.xenapi.PBD.create({'host':rec['host'],'SR':rec['SR'],'device_config':newdconf})
session.xenapi.PBD.plug(pbd)
if __name__ == "__main__":
if len(sys.argv) < 5:
print "Usage:"
print sys.argv[0], "<url> <username> <password> <sr-uuid>"
print "Note that the device-config parameters that are updated are located in the source file."
sys.exit(1)
url = sys.argv[1]
username = sys.argv[2]
password = sys.argv[3]
the_sr = sys.argv[4]
# This could be parsed from the command line.
the_mapping = {"target": "127.0.0.2"}
# First acquire a valid session by logging in:
new_session = XenAPI.Session(url)
try:
new_session.xenapi.login_with_password(username, password, "1.0", "xen-api-scripts-fixpbds.py")
except XenAPI.Failure as f:
print "Failed to acquire a session: %s" % f.details
sys.exit(1)
try:
main(new_session, the_sr, the_mapping)
except XenAPI.Failure as e:
print e.details
sys.exit(1)
finally:
new_session.xenapi.session.logout()