root / snf-cyclades-app / synnefo / logic / management / commands / pool-modify.py @ 18c4414d
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1 | 0eed6cf8 | Christos Stavrakakis | # Copyright 2012 GRNET S.A. All rights reserved.
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2 | 0eed6cf8 | Christos Stavrakakis | #
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3 | 0eed6cf8 | Christos Stavrakakis | # Redistribution and use in source and binary forms, with or
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4 | 0eed6cf8 | Christos Stavrakakis | # without modification, are permitted provided that the following
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5 | 0eed6cf8 | Christos Stavrakakis | # conditions are met:
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6 | 0eed6cf8 | Christos Stavrakakis | #
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7 | 0eed6cf8 | Christos Stavrakakis | # 1. Redistributions of source code must retain the above
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8 | 0eed6cf8 | Christos Stavrakakis | # copyright notice, this list of conditions and the following
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9 | 0eed6cf8 | Christos Stavrakakis | # disclaimer.
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10 | 0eed6cf8 | Christos Stavrakakis | #
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11 | 0eed6cf8 | Christos Stavrakakis | # 2. Redistributions in binary form must reproduce the above
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12 | 0eed6cf8 | Christos Stavrakakis | # copyright notice, this list of conditions and the following
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13 | 0eed6cf8 | Christos Stavrakakis | # disclaimer in the documentation and/or other materials
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14 | 0eed6cf8 | Christos Stavrakakis | # provided with the distribution.
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15 | 0eed6cf8 | Christos Stavrakakis | #
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16 | 0eed6cf8 | Christos Stavrakakis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 0eed6cf8 | Christos Stavrakakis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 0eed6cf8 | Christos Stavrakakis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 0eed6cf8 | Christos Stavrakakis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 0eed6cf8 | Christos Stavrakakis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 0eed6cf8 | Christos Stavrakakis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 0eed6cf8 | Christos Stavrakakis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 0eed6cf8 | Christos Stavrakakis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 0eed6cf8 | Christos Stavrakakis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 0eed6cf8 | Christos Stavrakakis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 0eed6cf8 | Christos Stavrakakis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 0eed6cf8 | Christos Stavrakakis | # POSSIBILITY OF SUCH DAMAGE.
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28 | 0eed6cf8 | Christos Stavrakakis | #
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29 | 0eed6cf8 | Christos Stavrakakis | # The views and conclusions contained in the software and
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30 | 0eed6cf8 | Christos Stavrakakis | # documentation are those of the authors and should not be
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31 | 0eed6cf8 | Christos Stavrakakis | # interpreted as representing official policies, either expressed
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32 | 0eed6cf8 | Christos Stavrakakis | # or implied, of GRNET S.A.
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33 | 0eed6cf8 | Christos Stavrakakis | |
34 | 0eed6cf8 | Christos Stavrakakis | from django.core.management.base import BaseCommand, CommandError |
35 | 0eed6cf8 | Christos Stavrakakis | from optparse import make_option |
36 | 0eed6cf8 | Christos Stavrakakis | |
37 | 0eed6cf8 | Christos Stavrakakis | from util import pool_table_from_type |
38 | 0eed6cf8 | Christos Stavrakakis | |
39 | 0eed6cf8 | Christos Stavrakakis | POOL_CHOICES = ['bridge', 'mac-prefix'] |
40 | 0eed6cf8 | Christos Stavrakakis | |
41 | 0eed6cf8 | Christos Stavrakakis | |
42 | 0eed6cf8 | Christos Stavrakakis | class Command(BaseCommand): |
43 | 0eed6cf8 | Christos Stavrakakis | args = "<pool ID>"
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44 | f0fe50c2 | Christos Stavrakakis | help = "Modify a pool"
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45 | 7f9f3018 | Christos Stavrakakis | output_transaction = True
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46 | 0eed6cf8 | Christos Stavrakakis | option_list = BaseCommand.option_list + ( |
47 | 0eed6cf8 | Christos Stavrakakis | make_option('--type', dest='type', |
48 | 0eed6cf8 | Christos Stavrakakis | choices=POOL_CHOICES, |
49 | 0eed6cf8 | Christos Stavrakakis | help="Type of pool"
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50 | 0eed6cf8 | Christos Stavrakakis | ), |
51 | 0eed6cf8 | Christos Stavrakakis | make_option('--offset', dest='offset'), |
52 | 3e7c63f8 | Christos Stavrakakis | make_option('--size', dest='size'), |
53 | 0eed6cf8 | Christos Stavrakakis | make_option('--base', dest='base'), |
54 | d4be7102 | Christos Stavrakakis | make_option('--add-reserved', dest='add-reserved', |
55 | 0eed6cf8 | Christos Stavrakakis | help="Comma-seperated list of values to reserve"),
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56 | d4be7102 | Christos Stavrakakis | make_option('--remove-reserved', dest="remove-reserved", |
57 | 0eed6cf8 | Christos Stavrakakis | help="Comma-seperated list of values to release"),
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58 | 0eed6cf8 | Christos Stavrakakis | ) |
59 | 0eed6cf8 | Christos Stavrakakis | |
60 | 0eed6cf8 | Christos Stavrakakis | def handle(self, *args, **options): |
61 | 0eed6cf8 | Christos Stavrakakis | type_ = options['type']
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62 | 0eed6cf8 | Christos Stavrakakis | offset = options['offset']
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63 | 0eed6cf8 | Christos Stavrakakis | base = options['base']
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64 | d4be7102 | Christos Stavrakakis | add_reserved = options['add-reserved']
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65 | d4be7102 | Christos Stavrakakis | remove_reserved = options['remove-reserved']
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66 | 0eed6cf8 | Christos Stavrakakis | |
67 | 0eed6cf8 | Christos Stavrakakis | if not type_: |
68 | 0eed6cf8 | Christos Stavrakakis | raise CommandError("Type of pool is mandatory") |
69 | 0eed6cf8 | Christos Stavrakakis | |
70 | 0eed6cf8 | Christos Stavrakakis | pool_table = pool_table_from_type(type_) |
71 | 0eed6cf8 | Christos Stavrakakis | |
72 | 0eed6cf8 | Christos Stavrakakis | try:
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73 | 0eed6cf8 | Christos Stavrakakis | pool_id = int(args[0]) |
74 | 0eed6cf8 | Christos Stavrakakis | pool_row = pool_table.objects.get(id=pool_id) |
75 | 0eed6cf8 | Christos Stavrakakis | except (ValueError, pool_table.DoesNotExist): |
76 | 0eed6cf8 | Christos Stavrakakis | raise CommandError("Invalid pool ID") |
77 | 0eed6cf8 | Christos Stavrakakis | |
78 | 0eed6cf8 | Christos Stavrakakis | pool = pool_row.pool |
79 | 0eed6cf8 | Christos Stavrakakis | if add_reserved:
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80 | 0eed6cf8 | Christos Stavrakakis | reserved = add_reserved.split(',')
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81 | 0eed6cf8 | Christos Stavrakakis | for value in reserved: |
82 | 0eed6cf8 | Christos Stavrakakis | pool.reserve(value, external=True)
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83 | 0eed6cf8 | Christos Stavrakakis | if remove_reserved:
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84 | 0eed6cf8 | Christos Stavrakakis | released = remove_reserved.split(',')
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85 | 0eed6cf8 | Christos Stavrakakis | for value in released: |
86 | 0eed6cf8 | Christos Stavrakakis | pool.put(value, external=True)
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87 | 0eed6cf8 | Christos Stavrakakis | pool.save(db=False)
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88 | 0eed6cf8 | Christos Stavrakakis | |
89 | 0eed6cf8 | Christos Stavrakakis | if offset:
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90 | 0eed6cf8 | Christos Stavrakakis | pool_row.offset = offset |
91 | 0eed6cf8 | Christos Stavrakakis | if base:
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92 | 0eed6cf8 | Christos Stavrakakis | pool_row.base = base |
93 | 0eed6cf8 | Christos Stavrakakis | |
94 | 3e7c63f8 | Christos Stavrakakis | # Save now, to avoid conflict with resizing pool.save()
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95 | 0eed6cf8 | Christos Stavrakakis | pool_row.save() |
96 | 3e7c63f8 | Christos Stavrakakis | |
97 | 3e7c63f8 | Christos Stavrakakis | if size:
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98 | 3e7c63f8 | Christos Stavrakakis | try:
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99 | 3e7c63f8 | Christos Stavrakakis | size = int(size)
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100 | 3e7c63f8 | Christos Stavrakakis | except ValueError: |
101 | 3e7c63f8 | Christos Stavrakakis | raise CommandError("Invalid size") |
102 | 3e7c63f8 | Christos Stavrakakis | pool = pool_row.get_pool() |
103 | 3e7c63f8 | Christos Stavrakakis | self.resize_pool(pool, pool_row.size, size)
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104 | 3e7c63f8 | Christos Stavrakakis | pool.save() |
105 | 3e7c63f8 | Christos Stavrakakis | |
106 | 3e7c63f8 | Christos Stavrakakis | def resize_pool(self, pool, old_size, new_size): |
107 | 3e7c63f8 | Christos Stavrakakis | if new_size == old_size:
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108 | 3e7c63f8 | Christos Stavrakakis | return
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109 | 3e7c63f8 | Christos Stavrakakis | elif new_size > old_size:
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110 | 3e7c63f8 | Christos Stavrakakis | pool.extend(new_size - old_size) |
111 | 3e7c63f8 | Christos Stavrakakis | else:
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112 | 3e7c63f8 | Christos Stavrakakis | pool.shrink(old_size - new_size) |
113 | 3e7c63f8 | Christos Stavrakakis | pool.save() |