root / snf-cyclades-app / synnefo / logic / utils.py @ 883c1f94
History | View | Annotate | Download (6.4 kB)
1 | 48130e66 | Georgios Gousios | # Copyright 2011 GRNET S.A. All rights reserved.
|
---|---|---|---|
2 | 8d97deff | Vassilios Karakoidas | #
|
3 | 48130e66 | Georgios Gousios | # Redistribution and use in source and binary forms, with or without
|
4 | 48130e66 | Georgios Gousios | # modification, are permitted provided that the following conditions
|
5 | 48130e66 | Georgios Gousios | # are met:
|
6 | 48130e66 | Georgios Gousios | #
|
7 | 48130e66 | Georgios Gousios | # 1. Redistributions of source code must retain the above copyright
|
8 | 48130e66 | Georgios Gousios | # notice, this list of conditions and the following disclaimer.
|
9 | 8d97deff | Vassilios Karakoidas | #
|
10 | 48130e66 | Georgios Gousios | # 2. Redistributions in binary form must reproduce the above copyright
|
11 | 48130e66 | Georgios Gousios | # notice, this list of conditions and the following disclaimer in the
|
12 | 48130e66 | Georgios Gousios | # documentation and/or other materials provided with the distribution.
|
13 | 8d97deff | Vassilios Karakoidas | #
|
14 | 48130e66 | Georgios Gousios | # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
15 | 48130e66 | Georgios Gousios | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
16 | 48130e66 | Georgios Gousios | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
17 | 48130e66 | Georgios Gousios | # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
18 | 48130e66 | Georgios Gousios | # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
19 | 48130e66 | Georgios Gousios | # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
20 | 48130e66 | Georgios Gousios | # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
21 | 48130e66 | Georgios Gousios | # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
22 | 48130e66 | Georgios Gousios | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
23 | 48130e66 | Georgios Gousios | # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
24 | 48130e66 | Georgios Gousios | # SUCH DAMAGE.
|
25 | 8d97deff | Vassilios Karakoidas | #
|
26 | 48130e66 | Georgios Gousios | # The views and conclusions contained in the software and documentation are
|
27 | 48130e66 | Georgios Gousios | # those of the authors and should not be interpreted as representing official
|
28 | 48130e66 | Georgios Gousios | # policies, either expressed or implied, of GRNET S.A.
|
29 | 48130e66 | Georgios Gousios | |
30 | 48130e66 | Georgios Gousios | # Utility functions
|
31 | 8d97deff | Vassilios Karakoidas | |
32 | 22ee6892 | Christos Stavrakakis | from synnefo.db.models import VirtualMachine, Network |
33 | ba6ad346 | Dionysis Grigoropoulos | from snf_django.lib.api import faults |
34 | 6efeecee | Faidon Liambotis | from django.conf import settings |
35 | 6de6677b | Christos Stavrakakis | from copy import deepcopy |
36 | 8d97deff | Vassilios Karakoidas | |
37 | 68b952f9 | Christos Stavrakakis | |
38 | 8d97deff | Vassilios Karakoidas | def id_from_instance_name(name): |
39 | 8d97deff | Vassilios Karakoidas | """Returns VirtualMachine's Django id, given a ganeti machine name.
|
40 | 8d97deff | Vassilios Karakoidas |
|
41 | 8d97deff | Vassilios Karakoidas | Strips the ganeti prefix atm. Needs a better name!
|
42 | 8d97deff | Vassilios Karakoidas |
|
43 | 8d97deff | Vassilios Karakoidas | """
|
44 | 4cbef2a0 | Christos Stavrakakis | sname = str(name)
|
45 | 4cbef2a0 | Christos Stavrakakis | if not sname.startswith(settings.BACKEND_PREFIX_ID): |
46 | 4cbef2a0 | Christos Stavrakakis | raise VirtualMachine.InvalidBackendIdError(sname)
|
47 | 4cbef2a0 | Christos Stavrakakis | ns = sname.replace(settings.BACKEND_PREFIX_ID, "", 1) |
48 | 8d97deff | Vassilios Karakoidas | if not ns.isdigit(): |
49 | 4cbef2a0 | Christos Stavrakakis | raise VirtualMachine.InvalidBackendIdError(sname)
|
50 | 8d97deff | Vassilios Karakoidas | |
51 | 8d97deff | Vassilios Karakoidas | return int(ns) |
52 | 8d97deff | Vassilios Karakoidas | |
53 | d30f29aa | Christos Stavrakakis | |
54 | d30f29aa | Christos Stavrakakis | def id_to_instance_name(id): |
55 | c55b0cdc | Christos Stavrakakis | return "%s%s" % (settings.BACKEND_PREFIX_ID, str(id)) |
56 | d30f29aa | Christos Stavrakakis | |
57 | d30f29aa | Christos Stavrakakis | |
58 | 22ee6892 | Christos Stavrakakis | def id_from_network_name(name): |
59 | a1baa42b | Christos Stavrakakis | """Returns Network's Django id, given a ganeti network name.
|
60 | 22ee6892 | Christos Stavrakakis |
|
61 | 22ee6892 | Christos Stavrakakis | Strips the ganeti prefix atm. Needs a better name!
|
62 | 22ee6892 | Christos Stavrakakis |
|
63 | 22ee6892 | Christos Stavrakakis | """
|
64 | 22ee6892 | Christos Stavrakakis | if not str(name).startswith(settings.BACKEND_PREFIX_ID): |
65 | 22ee6892 | Christos Stavrakakis | raise Network.InvalidBackendIdError(str(name)) |
66 | 44e2c577 | Christos Stavrakakis | ns = str(name).replace(settings.BACKEND_PREFIX_ID + 'net-', "", 1) |
67 | 22ee6892 | Christos Stavrakakis | if not ns.isdigit(): |
68 | 22ee6892 | Christos Stavrakakis | raise Network.InvalidBackendIdError(str(name)) |
69 | 22ee6892 | Christos Stavrakakis | |
70 | 22ee6892 | Christos Stavrakakis | return int(ns) |
71 | 22ee6892 | Christos Stavrakakis | |
72 | 22ee6892 | Christos Stavrakakis | |
73 | d30f29aa | Christos Stavrakakis | def id_to_network_name(id): |
74 | 0b827aa4 | Christos Stavrakakis | return "%snet-%s" % (settings.BACKEND_PREFIX_ID, str(id)) |
75 | d30f29aa | Christos Stavrakakis | |
76 | d30f29aa | Christos Stavrakakis | |
77 | a1baa42b | Christos Stavrakakis | def id_from_nic_name(name): |
78 | a1baa42b | Christos Stavrakakis | """Returns NIC's Django id, given a Ganeti's NIC name.
|
79 | a1baa42b | Christos Stavrakakis |
|
80 | a1baa42b | Christos Stavrakakis | """
|
81 | a1baa42b | Christos Stavrakakis | if not str(name).startswith(settings.BACKEND_PREFIX_ID): |
82 | a1baa42b | Christos Stavrakakis | raise ValueError("Invalid NIC name: %s" % name) |
83 | a1baa42b | Christos Stavrakakis | ns = str(name).replace(settings.BACKEND_PREFIX_ID + 'nic-', "", 1) |
84 | a1baa42b | Christos Stavrakakis | if not ns.isdigit(): |
85 | a1baa42b | Christos Stavrakakis | raise ValueError("Invalid NIC name: %s" % name) |
86 | a1baa42b | Christos Stavrakakis | |
87 | a1baa42b | Christos Stavrakakis | return int(ns) |
88 | a1baa42b | Christos Stavrakakis | |
89 | a1baa42b | Christos Stavrakakis | |
90 | 8d97deff | Vassilios Karakoidas | def get_rsapi_state(vm): |
91 | fc30c430 | Vangelis Koukis | """Returns the API state for a virtual machine
|
92 | f16c6944 | Kostas Papadimitriou |
|
93 | fc30c430 | Vangelis Koukis | The API state for an instance of VirtualMachine is derived as follows:
|
94 | fc30c430 | Vangelis Koukis |
|
95 | fc30c430 | Vangelis Koukis | * If the deleted flag has been set, it is "DELETED".
|
96 | fc30c430 | Vangelis Koukis | * Otherwise, it is a mapping of the last state reported by Ganeti
|
97 | fc30c430 | Vangelis Koukis | (vm.operstate) through the RSAPI_STATE_FROM_OPER_STATE dictionary.
|
98 | f16c6944 | Kostas Papadimitriou |
|
99 | fc30c430 | Vangelis Koukis | The last state reported by Ganeti is set whenever Ganeti reports
|
100 | 68b952f9 | Christos Stavrakakis | successful completion of an operation. If Ganeti says an
|
101 | 68b952f9 | Christos Stavrakakis | OP_INSTANCE_STARTUP operation succeeded, vm.operstate is set to
|
102 | 68b952f9 | Christos Stavrakakis | "STARTED".
|
103 | 68b952f9 | Christos Stavrakakis |
|
104 | 68b952f9 | Christos Stavrakakis | * To support any transitional states defined by the API (only REBOOT for
|
105 | 68b952f9 | Christos Stavrakakis | the time being) this mapping is amended with information reported by Ganeti
|
106 | 68b952f9 | Christos Stavrakakis | regarding any outstanding operation. If an OP_INSTANCE_STARTUP had
|
107 | 68b952f9 | Christos Stavrakakis | succeeded previously and an OP_INSTANCE_REBOOT has been reported as in
|
108 | 68b952f9 | Christos Stavrakakis | progress, the API state is "REBOOT".
|
109 | fc30c430 | Vangelis Koukis |
|
110 | fc30c430 | Vangelis Koukis | """
|
111 | 8d97deff | Vassilios Karakoidas | try:
|
112 | dfd19c2d | Vassilios Karakoidas | r = VirtualMachine.RSAPI_STATE_FROM_OPER_STATE[vm.operstate] |
113 | 8d97deff | Vassilios Karakoidas | except KeyError: |
114 | 8d97deff | Vassilios Karakoidas | return "UNKNOWN" |
115 | 685b219e | Vangelis Koukis | # A machine is DELETED if the deleted flag has been set
|
116 | 685b219e | Vangelis Koukis | if vm.deleted:
|
117 | 685b219e | Vangelis Koukis | return "DELETED" |
118 | 8d97deff | Vassilios Karakoidas | # A machine is in REBOOT if an OP_INSTANCE_REBOOT request is in progress
|
119 | 41a7fae7 | Christos Stavrakakis | in_reboot = (r == "ACTIVE") and\ |
120 | c4e45b57 | Christos Stavrakakis | (vm.backendopcode == "OP_INSTANCE_REBOOT") and\ |
121 | 41a7fae7 | Christos Stavrakakis | (vm.backendjobstatus in ("queued", "waiting", "running")) |
122 | c4e45b57 | Christos Stavrakakis | if in_reboot:
|
123 | 8d97deff | Vassilios Karakoidas | return "REBOOT" |
124 | 41a7fae7 | Christos Stavrakakis | in_resize = (r == "STOPPED") and\ |
125 | 41a7fae7 | Christos Stavrakakis | (vm.backendopcode == "OP_INSTANCE_MODIFY") and\ |
126 | 41a7fae7 | Christos Stavrakakis | (vm.task == "RESIZE") and \ |
127 | 41a7fae7 | Christos Stavrakakis | (vm.backendjobstatus in ("queued", "waiting", "running")) |
128 | 41a7fae7 | Christos Stavrakakis | if in_resize:
|
129 | 41a7fae7 | Christos Stavrakakis | return "RESIZE" |
130 | 8d97deff | Vassilios Karakoidas | return r
|
131 | 8d97deff | Vassilios Karakoidas | |
132 | 6afeb85d | Christos Stavrakakis | |
133 | 41a7fae7 | Christos Stavrakakis | TASK_STATE_FROM_ACTION = { |
134 | 41a7fae7 | Christos Stavrakakis | "BUILD": "BULDING", |
135 | 41a7fae7 | Christos Stavrakakis | "START": "STARTING", |
136 | 41a7fae7 | Christos Stavrakakis | "STOP": "STOPPING", |
137 | 41a7fae7 | Christos Stavrakakis | "REBOOT": "REBOOTING", |
138 | 41a7fae7 | Christos Stavrakakis | "DESTROY": "DESTROYING", |
139 | 41a7fae7 | Christos Stavrakakis | "RESIZE": "RESIZING", |
140 | 41a7fae7 | Christos Stavrakakis | "CONNECT": "CONNECTING", |
141 | 41a7fae7 | Christos Stavrakakis | "DISCONNECT": "DISCONNECTING"} |
142 | 41a7fae7 | Christos Stavrakakis | |
143 | 41a7fae7 | Christos Stavrakakis | |
144 | 41a7fae7 | Christos Stavrakakis | def get_task_state(vm): |
145 | 41a7fae7 | Christos Stavrakakis | if vm.task is None: |
146 | 41a7fae7 | Christos Stavrakakis | return "" |
147 | 41a7fae7 | Christos Stavrakakis | try:
|
148 | 41a7fae7 | Christos Stavrakakis | return TASK_STATE_FROM_ACTION[vm.task]
|
149 | 41a7fae7 | Christos Stavrakakis | except KeyError: |
150 | 41a7fae7 | Christos Stavrakakis | return "UNKNOWN" |
151 | 41a7fae7 | Christos Stavrakakis | |
152 | 41a7fae7 | Christos Stavrakakis | |
153 | 41a7fae7 | Christos Stavrakakis | OPCODE_TO_ACTION = { |
154 | 41a7fae7 | Christos Stavrakakis | "OP_INSTANCE_CREATE": "BUILD", |
155 | 41a7fae7 | Christos Stavrakakis | "OP_INSTANCE_START": "START", |
156 | 41a7fae7 | Christos Stavrakakis | "OP_INSTANCE_STOP": "STOP", |
157 | 41a7fae7 | Christos Stavrakakis | "OP_INSTANCE_REBOOT": "REBOOT", |
158 | 41a7fae7 | Christos Stavrakakis | "OP_INSTANCE_REMOVE": "DESTROY"} |
159 | 41a7fae7 | Christos Stavrakakis | |
160 | 41a7fae7 | Christos Stavrakakis | |
161 | 41a7fae7 | Christos Stavrakakis | def get_action_from_opcode(opcode, job_fields): |
162 | 41a7fae7 | Christos Stavrakakis | if opcode == "OP_INSTANCE_SET_PARAMS": |
163 | 41a7fae7 | Christos Stavrakakis | nics = job_fields.get("nics")
|
164 | 41a7fae7 | Christos Stavrakakis | beparams = job_fields.get("beparams")
|
165 | 41a7fae7 | Christos Stavrakakis | if nics:
|
166 | 3c52a9df | Christos Stavrakakis | try:
|
167 | 3c52a9df | Christos Stavrakakis | nic_action = nics[0][0] |
168 | 3c52a9df | Christos Stavrakakis | if nic_action == "add": |
169 | 3c52a9df | Christos Stavrakakis | return "CONNECT" |
170 | 3c52a9df | Christos Stavrakakis | elif nic_action == "remove": |
171 | 3c52a9df | Christos Stavrakakis | return "DISCONNECT" |
172 | 3c52a9df | Christos Stavrakakis | else:
|
173 | 3c52a9df | Christos Stavrakakis | return None |
174 | 3c52a9df | Christos Stavrakakis | except:
|
175 | 3c52a9df | Christos Stavrakakis | return None |
176 | 41a7fae7 | Christos Stavrakakis | elif beparams:
|
177 | 41a7fae7 | Christos Stavrakakis | return "RESIZE" |
178 | 41a7fae7 | Christos Stavrakakis | else:
|
179 | 41a7fae7 | Christos Stavrakakis | return None |
180 | 41a7fae7 | Christos Stavrakakis | else:
|
181 | 41a7fae7 | Christos Stavrakakis | return OPCODE_TO_ACTION.get(opcode, None) |
182 | 41a7fae7 | Christos Stavrakakis | |
183 | 41a7fae7 | Christos Stavrakakis | |
184 | 6afeb85d | Christos Stavrakakis | def hide_pass(kw): |
185 | 6afeb85d | Christos Stavrakakis | if 'osparams' in kw and 'img_passwd' in kw['osparams']: |
186 | 6de6677b | Christos Stavrakakis | kw1 = deepcopy(kw) |
187 | 6afeb85d | Christos Stavrakakis | kw1['osparams']['img_passwd'] = 'x' * 8 |
188 | 6afeb85d | Christos Stavrakakis | return kw1
|
189 | 6afeb85d | Christos Stavrakakis | else:
|
190 | 6afeb85d | Christos Stavrakakis | return kw
|
191 | ba6ad346 | Dionysis Grigoropoulos | |
192 | ba6ad346 | Dionysis Grigoropoulos | |
193 | ba6ad346 | Dionysis Grigoropoulos | def check_name_length(name, max_length, message): |
194 | ba6ad346 | Dionysis Grigoropoulos | """Check if a string is within acceptable value length"""
|
195 | ba6ad346 | Dionysis Grigoropoulos | if len(str(name)) > max_length: |
196 | ba6ad346 | Dionysis Grigoropoulos | raise faults.BadRequest(message) |