root / daemons / ganeti-rapi @ 3fc175f0
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1 | 8c229cc7 | Oleksiy Mishchenko | #!/usr/bin/python |
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2 | 8c229cc7 | Oleksiy Mishchenko | # |
3 | 8c229cc7 | Oleksiy Mishchenko | |
4 | 8c229cc7 | Oleksiy Mishchenko | # Copyright (C) 2006, 2007 Google Inc. |
5 | 8c229cc7 | Oleksiy Mishchenko | # |
6 | 8c229cc7 | Oleksiy Mishchenko | # This program is free software; you can redistribute it and/or modify |
7 | 8c229cc7 | Oleksiy Mishchenko | # it under the terms of the GNU General Public License as published by |
8 | 8c229cc7 | Oleksiy Mishchenko | # the Free Software Foundation; either version 2 of the License, or |
9 | 8c229cc7 | Oleksiy Mishchenko | # (at your option) any later version. |
10 | 8c229cc7 | Oleksiy Mishchenko | # |
11 | 8c229cc7 | Oleksiy Mishchenko | # This program is distributed in the hope that it will be useful, but |
12 | 8c229cc7 | Oleksiy Mishchenko | # WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | 8c229cc7 | Oleksiy Mishchenko | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | 8c229cc7 | Oleksiy Mishchenko | # General Public License for more details. |
15 | 8c229cc7 | Oleksiy Mishchenko | # |
16 | 8c229cc7 | Oleksiy Mishchenko | # You should have received a copy of the GNU General Public License |
17 | 8c229cc7 | Oleksiy Mishchenko | # along with this program; if not, write to the Free Software |
18 | 8c229cc7 | Oleksiy Mishchenko | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
19 | 8c229cc7 | Oleksiy Mishchenko | # 02110-1301, USA. |
20 | 8c229cc7 | Oleksiy Mishchenko | |
21 | 8c229cc7 | Oleksiy Mishchenko | """ Ganeti Remote API master script. |
22 | 8c229cc7 | Oleksiy Mishchenko | """ |
23 | 8c229cc7 | Oleksiy Mishchenko | |
24 | 8c229cc7 | Oleksiy Mishchenko | import glob |
25 | 441e7cfd | Oleksiy Mishchenko | import logging |
26 | 8c229cc7 | Oleksiy Mishchenko | import optparse |
27 | 8c229cc7 | Oleksiy Mishchenko | import sys |
28 | 8c229cc7 | Oleksiy Mishchenko | import os |
29 | cfe3c70f | Michael Hanselmann | import signal |
30 | 8c229cc7 | Oleksiy Mishchenko | |
31 | 441e7cfd | Oleksiy Mishchenko | from ganeti import logger |
32 | 8c229cc7 | Oleksiy Mishchenko | from ganeti import constants |
33 | 3cd62121 | Michael Hanselmann | from ganeti import errors |
34 | 3cd62121 | Michael Hanselmann | from ganeti import http |
35 | 5675cd1f | Iustin Pop | from ganeti import ssconf |
36 | 8c229cc7 | Oleksiy Mishchenko | from ganeti import utils |
37 | 3cd62121 | Michael Hanselmann | from ganeti.rapi import connector |
38 | 3cd62121 | Michael Hanselmann | |
39 | 3cd62121 | Michael Hanselmann | |
40 | 3cd62121 | Michael Hanselmann | class RESTRequestHandler(http.HTTPRequestHandler): |
41 | 3cd62121 | Michael Hanselmann | """REST Request Handler Class. |
42 | 3cd62121 | Michael Hanselmann | |
43 | 3cd62121 | Michael Hanselmann | """ |
44 | 3cd62121 | Michael Hanselmann | def setup(self): |
45 | 3cd62121 | Michael Hanselmann | super(RESTRequestHandler, self).setup() |
46 | 3cd62121 | Michael Hanselmann | self._resmap = connector.Mapper() |
47 | 3cd62121 | Michael Hanselmann | |
48 | 3cd62121 | Michael Hanselmann | def HandleRequest(self): |
49 | 3cd62121 | Michael Hanselmann | """ Handels a request. |
50 | 3cd62121 | Michael Hanselmann | |
51 | 3cd62121 | Michael Hanselmann | """ |
52 | 3cd62121 | Michael Hanselmann | (HandlerClass, items, args) = self._resmap.getController(self.path) |
53 | 441e7cfd | Oleksiy Mishchenko | handler = HandlerClass(self, items, args, self.post_data) |
54 | 3cd62121 | Michael Hanselmann | |
55 | 3cd62121 | Michael Hanselmann | command = self.command.upper() |
56 | 3cd62121 | Michael Hanselmann | try: |
57 | 3cd62121 | Michael Hanselmann | fn = getattr(handler, command) |
58 | 3cd62121 | Michael Hanselmann | except AttributeError, err: |
59 | 3cd62121 | Michael Hanselmann | raise http.HTTPBadRequest() |
60 | 3cd62121 | Michael Hanselmann | |
61 | 3cd62121 | Michael Hanselmann | try: |
62 | 441e7cfd | Oleksiy Mishchenko | try: |
63 | 441e7cfd | Oleksiy Mishchenko | result = fn() |
64 | 441e7cfd | Oleksiy Mishchenko | except: |
65 | 441e7cfd | Oleksiy Mishchenko | logging.exception("Error while handling the %s request", command) |
66 | 441e7cfd | Oleksiy Mishchenko | raise |
67 | 3cd62121 | Michael Hanselmann | |
68 | 3cd62121 | Michael Hanselmann | except errors.OpPrereqError, err: |
69 | 3cd62121 | Michael Hanselmann | # TODO: "Not found" is not always the correct error. Ganeti's core must |
70 | 3cd62121 | Michael Hanselmann | # differentiate between different error types. |
71 | 3cd62121 | Michael Hanselmann | raise http.HTTPNotFound(message=str(err)) |
72 | 3cd62121 | Michael Hanselmann | |
73 | 3cd62121 | Michael Hanselmann | return result |
74 | 8c229cc7 | Oleksiy Mishchenko | |
75 | 8c229cc7 | Oleksiy Mishchenko | |
76 | cfe3c70f | Michael Hanselmann | class RESTHttpServer(http.HTTPServer): |
77 | cfe3c70f | Michael Hanselmann | def serve_forever(self): |
78 | cfe3c70f | Michael Hanselmann | """Handle one request at a time until told to quit.""" |
79 | cfe3c70f | Michael Hanselmann | sighandler = utils.SignalHandler([signal.SIGINT, signal.SIGTERM]) |
80 | cfe3c70f | Michael Hanselmann | try: |
81 | cfe3c70f | Michael Hanselmann | while not sighandler.called: |
82 | cfe3c70f | Michael Hanselmann | self.handle_request() |
83 | cfe3c70f | Michael Hanselmann | finally: |
84 | cfe3c70f | Michael Hanselmann | sighandler.Reset() |
85 | cfe3c70f | Michael Hanselmann | |
86 | cfe3c70f | Michael Hanselmann | |
87 | 8c229cc7 | Oleksiy Mishchenko | def ParseOptions(): |
88 | 8c229cc7 | Oleksiy Mishchenko | """Parse the command line options. |
89 | 8c229cc7 | Oleksiy Mishchenko | |
90 | 8c229cc7 | Oleksiy Mishchenko | Returns: |
91 | 8c229cc7 | Oleksiy Mishchenko | (options, args) as from OptionParser.parse_args() |
92 | 8c229cc7 | Oleksiy Mishchenko | |
93 | 8c229cc7 | Oleksiy Mishchenko | """ |
94 | 8c229cc7 | Oleksiy Mishchenko | parser = optparse.OptionParser(description="Ganeti Remote API", |
95 | 8c229cc7 | Oleksiy Mishchenko | usage="%prog [-d] [-p port]", |
96 | 8c229cc7 | Oleksiy Mishchenko | version="%%prog (ganeti) %s" % |
97 | 8c229cc7 | Oleksiy Mishchenko | constants.RAPI_VERSION) |
98 | 8c229cc7 | Oleksiy Mishchenko | parser.add_option("-d", "--debug", dest="debug", |
99 | 8c229cc7 | Oleksiy Mishchenko | help="Enable some debug messages", |
100 | 8c229cc7 | Oleksiy Mishchenko | default=False, action="store_true") |
101 | 8c229cc7 | Oleksiy Mishchenko | parser.add_option("-p", "--port", dest="port", |
102 | 8c229cc7 | Oleksiy Mishchenko | help="Port to run API (%s default)." % |
103 | 8c229cc7 | Oleksiy Mishchenko | constants.RAPI_PORT, |
104 | 8c229cc7 | Oleksiy Mishchenko | default=constants.RAPI_PORT, type="int") |
105 | 8c229cc7 | Oleksiy Mishchenko | parser.add_option("-S", "--https", dest="ssl", |
106 | 8c229cc7 | Oleksiy Mishchenko | help="Secure HTTP protocol with SSL", |
107 | 8c229cc7 | Oleksiy Mishchenko | default=False, action="store_true") |
108 | 8c229cc7 | Oleksiy Mishchenko | parser.add_option("-K", "--ssl-key", dest="ssl_key", |
109 | 8c229cc7 | Oleksiy Mishchenko | help="SSL key", |
110 | 8c229cc7 | Oleksiy Mishchenko | default=None, type="string") |
111 | 8c229cc7 | Oleksiy Mishchenko | parser.add_option("-C", "--ssl-cert", dest="ssl_cert", |
112 | 8c229cc7 | Oleksiy Mishchenko | help="SSL certificate", |
113 | 8c229cc7 | Oleksiy Mishchenko | default=None, type="string") |
114 | 8c229cc7 | Oleksiy Mishchenko | parser.add_option("-f", "--foreground", dest="fork", |
115 | 8c229cc7 | Oleksiy Mishchenko | help="Don't detach from the current terminal", |
116 | 8c229cc7 | Oleksiy Mishchenko | default=True, action="store_false") |
117 | 8c229cc7 | Oleksiy Mishchenko | |
118 | 8c229cc7 | Oleksiy Mishchenko | options, args = parser.parse_args() |
119 | 8c229cc7 | Oleksiy Mishchenko | |
120 | 8c229cc7 | Oleksiy Mishchenko | if len(args) != 0: |
121 | 8c229cc7 | Oleksiy Mishchenko | print >> sys.stderr, "Usage: %s [-d] [-p port]" % sys.argv[0] |
122 | 8c229cc7 | Oleksiy Mishchenko | sys.exit(1) |
123 | 8c229cc7 | Oleksiy Mishchenko | |
124 | 8c229cc7 | Oleksiy Mishchenko | if options.ssl and not (options.ssl_cert and options.ssl_key): |
125 | 8c229cc7 | Oleksiy Mishchenko | print >> sys.stderr, ("For secure mode please provide " |
126 | 8c229cc7 | Oleksiy Mishchenko | "--ssl-key and --ssl-cert arguments") |
127 | 8c229cc7 | Oleksiy Mishchenko | sys.exit(1) |
128 | 8c229cc7 | Oleksiy Mishchenko | |
129 | 8c229cc7 | Oleksiy Mishchenko | return options, args |
130 | 8c229cc7 | Oleksiy Mishchenko | |
131 | 8c229cc7 | Oleksiy Mishchenko | |
132 | 8c229cc7 | Oleksiy Mishchenko | def main(): |
133 | 8c229cc7 | Oleksiy Mishchenko | """Main function. |
134 | 8c229cc7 | Oleksiy Mishchenko | |
135 | 8c229cc7 | Oleksiy Mishchenko | """ |
136 | 8c229cc7 | Oleksiy Mishchenko | options, args = ParseOptions() |
137 | 3cd62121 | Michael Hanselmann | |
138 | 5675cd1f | Iustin Pop | ssconf.CheckMaster(options.debug) |
139 | 5675cd1f | Iustin Pop | |
140 | 8c229cc7 | Oleksiy Mishchenko | if options.fork: |
141 | 8c229cc7 | Oleksiy Mishchenko | utils.Daemonize(logfile=constants.LOG_RAPISERVER) |
142 | 3cd62121 | Michael Hanselmann | |
143 | 441e7cfd | Oleksiy Mishchenko | logger.SetupLogging(constants.LOG_RAPISERVER, debug=options.debug, |
144 | 441e7cfd | Oleksiy Mishchenko | stderr_logging=not options.fork) |
145 | 441e7cfd | Oleksiy Mishchenko | |
146 | 99e88451 | Iustin Pop | utils.WritePidFile(constants.RAPI_PID) |
147 | f71245a0 | Iustin Pop | |
148 | 3cd62121 | Michael Hanselmann | log_fd = open(constants.LOG_RAPIACCESS, 'a') |
149 | 3cd62121 | Michael Hanselmann | try: |
150 | 3cd62121 | Michael Hanselmann | apache_log = http.ApacheLogfile(log_fd) |
151 | cfe3c70f | Michael Hanselmann | httpd = RESTHttpServer(("", options.port), RESTRequestHandler, |
152 | cfe3c70f | Michael Hanselmann | httplog=apache_log) |
153 | 3cd62121 | Michael Hanselmann | try: |
154 | 3cd62121 | Michael Hanselmann | httpd.serve_forever() |
155 | 3cd62121 | Michael Hanselmann | finally: |
156 | 3cd62121 | Michael Hanselmann | httpd.server_close() |
157 | 99e88451 | Iustin Pop | utils.RemovePidFile(constants.RAPI_PID) |
158 | 3cd62121 | Michael Hanselmann | |
159 | 3cd62121 | Michael Hanselmann | finally: |
160 | 3cd62121 | Michael Hanselmann | log_fd.close() |
161 | 3cd62121 | Michael Hanselmann | |
162 | 8c229cc7 | Oleksiy Mishchenko | sys.exit(0) |
163 | 8c229cc7 | Oleksiy Mishchenko | |
164 | 8c229cc7 | Oleksiy Mishchenko | |
165 | 8c229cc7 | Oleksiy Mishchenko | if __name__ == '__main__': |
166 | 441e7cfd | Oleksiy Mishchenko | |
167 | 8c229cc7 | Oleksiy Mishchenko | main() |