root / snf-cyclades-app / synnefo / logic / management / commands / backend-modify.py @ 9e20fcee
History | View | Annotate | Download (3.9 kB)
1 |
# Copyright 2012 GRNET S.A. All rights reserved.
|
---|---|
2 |
#
|
3 |
# Redistribution and use in source and binary forms, with or
|
4 |
# without modification, are permitted provided that the following
|
5 |
# conditions are met:
|
6 |
#
|
7 |
# 1. Redistributions of source code must retain the above
|
8 |
# copyright notice, this list of conditions and the following
|
9 |
# disclaimer.
|
10 |
#
|
11 |
# 2. Redistributions in binary form must reproduce the above
|
12 |
# copyright notice, this list of conditions and the following
|
13 |
# disclaimer in the documentation and/or other materials
|
14 |
# provided with the distribution.
|
15 |
#
|
16 |
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 |
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 |
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 |
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 |
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 |
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 |
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 |
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 |
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 |
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 |
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 |
# POSSIBILITY OF SUCH DAMAGE.
|
28 |
#
|
29 |
# The views and conclusions contained in the software and
|
30 |
# documentation are those of the authors and should not be
|
31 |
# interpreted as representing official policies, either expressed
|
32 |
# or implied, of GRNET S.A.
|
33 |
|
34 |
from optparse import make_option |
35 |
from django.core.management.base import BaseCommand, CommandError |
36 |
from synnefo.management.common import (get_backend, check_backend_credentials, |
37 |
parse_bool) |
38 |
|
39 |
|
40 |
class Command(BaseCommand): |
41 |
output_transaction = True
|
42 |
args = "<backend ID>"
|
43 |
help = "Modify a backend"
|
44 |
|
45 |
option_list = BaseCommand.option_list + ( |
46 |
make_option('--clustername',
|
47 |
dest='clustername',
|
48 |
help="Set backend's clustername"),
|
49 |
make_option('--port',
|
50 |
dest='port',
|
51 |
help="Set backend's port"),
|
52 |
make_option('--username',
|
53 |
dest='username',
|
54 |
help="Set backend'username"),
|
55 |
make_option('--password',
|
56 |
dest='password',
|
57 |
help="Set backend's password"),
|
58 |
make_option('--drained',
|
59 |
dest='drained',
|
60 |
choices=["True", "False"], |
61 |
metavar="True|False",
|
62 |
help="Set the backend as drained to exclude from"
|
63 |
" allocation operations"),
|
64 |
make_option('--offline',
|
65 |
dest='offline',
|
66 |
choices=["True", "False"], |
67 |
metavar="True|False",
|
68 |
help="Set the backend as offline to not communicate in"
|
69 |
" order to avoid delays"),
|
70 |
) |
71 |
|
72 |
def handle(self, *args, **options): |
73 |
if len(args) != 1: |
74 |
raise CommandError("Please provide a backend ID") |
75 |
|
76 |
backend = get_backend(args[0])
|
77 |
|
78 |
# Ensure fields correspondence with options and Backend model
|
79 |
credentials_changed = False
|
80 |
fields = ('clustername', 'port', 'username', 'password') |
81 |
for field in fields: |
82 |
value = options.get(field) |
83 |
if value is not None: |
84 |
backend.__setattr__(field, value) |
85 |
credentials_changed = True
|
86 |
|
87 |
if credentials_changed:
|
88 |
# check credentials, if any of them changed!
|
89 |
check_backend_credentials(backend.clustername, backend.port, |
90 |
backend.username, backend.password) |
91 |
if options['drained']: |
92 |
backend.drained = parse_bool(options['drained'])
|
93 |
if options['offline']: |
94 |
backend.offile = parse_bool(options['offline'])
|
95 |
|
96 |
backend.save() |