2 # -*- coding: utf-8 -*-
4 # Copyright 2012 GRNET S.A. All rights reserved.
6 # Redistribution and use in source and binary forms, with or
7 # without modification, are permitted provided that the following
10 # 1. Redistributions of source code must retain the above
11 # copyright notice, this list of conditions and the following
14 # 2. Redistributions in binary form must reproduce the above
15 # copyright notice, this list of conditions and the following
16 # disclaimer in the documentation and/or other materials
17 # provided with the distribution.
19 # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
20 # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
23 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
26 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27 # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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35 # or implied, of GRNET S.A.
37 """This module is the entrance point for the non-interactive version of the
38 snf-image-creator program.
41 from image_creator import __version__ as version
42 from image_creator.disk import Disk
43 from image_creator.util import FatalError, MD5
44 from image_creator.output.cli import SilentOutput, SimpleOutput, \
46 from image_creator.kamaki_wrapper import Kamaki, ClientError
55 def check_writable_dir(option, opt_str, value, parser):
56 dirname = os.path.dirname(value)
57 name = os.path.basename(value)
58 if dirname and not os.path.isdir(dirname):
59 raise FatalError("`%s' is not an existing directory" % dirname)
62 raise FatalError("`%s' is not a valid file name" % dirname)
64 setattr(parser.values, option.dest, value)
67 def parse_options(input_args):
68 usage = "Usage: %prog [options] <input_media>"
69 parser = optparse.OptionParser(version=version, usage=usage)
71 parser.add_option("-o", "--outfile", type="string", dest="outfile",
72 default=None, action="callback",
73 callback=check_writable_dir, help="dump image to FILE",
76 parser.add_option("-f", "--force", dest="force", default=False,
78 help="overwrite output files if they exist")
80 parser.add_option("-s", "--silent", dest="silent", default=False,
81 help="output only errors",
84 parser.add_option("-u", "--upload", dest="upload", type="string",
86 help="upload the image to the cloud with name FILENAME",
89 parser.add_option("-r", "--register", dest="register", type="string",
91 help="register the image with a cloud as IMAGENAME",
94 parser.add_option("-m", "--metadata", dest="metadata", default=[],
95 help="add custom KEY=VALUE metadata to the image",
96 action="append", metavar="KEY=VALUE")
98 parser.add_option("-t", "--token", dest="token", type="string",
99 default=None, help="use this authentication token when "
100 "uploading/registering images")
102 parser.add_option("-a", "--authentication-url", dest="url", type="string",
103 default=None, help="use this authentication URL when "
104 "uploading/registering images")
106 parser.add_option("-c", "--cloud", dest="cloud", type="string",
107 default=None, help="use this saved cloud account to "
108 "authenticate against a cloud when "
109 "uploading/registering images")
111 parser.add_option("--print-sysprep", dest="print_sysprep", default=False,
112 help="print the enabled and disabled system preparation "
113 "operations for this input media", action="store_true")
115 parser.add_option("--enable-sysprep", dest="enabled_syspreps", default=[],
116 help="run SYSPREP operation on the input media",
117 action="append", metavar="SYSPREP")
119 parser.add_option("--disable-sysprep", dest="disabled_syspreps",
120 help="prevent SYSPREP operation from running on the "
121 "input media", default=[], action="append",
124 parser.add_option("--no-sysprep", dest="sysprep", default=True,
125 help="don't perform any system preparation operation",
126 action="store_false")
128 parser.add_option("--no-shrink", dest="shrink", default=True,
129 help="don't shrink any partition", action="store_false")
131 parser.add_option("--public", dest="public", default=False,
132 help="register image with the cloud as public",
135 parser.add_option("--tmpdir", dest="tmp", type="string", default=None,
136 help="create large temporary image files under DIR",
139 options, args = parser.parse_args(input_args)
142 parser.error('Wrong number of arguments')
144 options.source = args[0]
145 if not os.path.exists(options.source):
146 raise FatalError("Input media `%s' is not accessible" % options.source)
148 if options.register and not options.upload:
149 raise FatalError("You also need to set -u when -r option is set")
151 if options.upload and (options.token is None or options.url is None) and \
152 options.cloud is None:
154 err = "You need to either specify an authentication URL and token " \
155 "pair or an available cloud name."
157 raise FatalError("Image uploading cannot be performed. %s" % err)
159 if options.tmp is not None and not os.path.isdir(options.tmp):
160 raise FatalError("The directory `%s' specified with --tmpdir is not "
161 "valid" % options.tmp)
164 for m in options.metadata:
166 key, value = m.split('=', 1)
168 raise FatalError("Metadata option: `%s' is not in KEY=VALUE "
171 options.metadata = meta
177 options = parse_options(sys.argv[1:])
179 if options.outfile is None and not options.upload and not \
180 options.print_sysprep:
181 raise FatalError("At least one of `-o', `-u' or `--print-sysprep' "
187 out = OutputWthProgress(True) if sys.stderr.isatty() else \
190 title = 'snf-image-creator %s' % version
192 out.output('=' * len(title))
194 if os.geteuid() != 0:
195 raise FatalError("You must run %s as root"
196 % os.path.basename(sys.argv[0]))
198 if not options.force and options.outfile is not None:
199 for extension in ('', '.meta', '.md5sum'):
200 filename = "%s%s" % (options.outfile, extension)
201 if os.path.exists(filename):
202 raise FatalError("Output file `%s' exists "
203 "(use --force to overwrite it)." % filename)
205 # Check if the authentication info is valid. The earlier the better
206 if options.token is not None and options.url is not None:
208 account = Kamaki.create_account(options.url, options.token)
210 raise FatalError("The authentication token and/or URL you "
211 "provided is not valid!")
213 kamaki = Kamaki(account, out)
214 except ClientError as e:
215 raise FatalError("Astakos client: %d %s" % (e.status, e.message))
217 avail_clouds = Kamaki.get_clouds()
218 if options.cloud not in avail_clouds.keys():
220 "Cloud: `%s' does not exist.\n\nAvailable clouds:\n\n\t%s\n"
221 % (options.cloud, "\n\t".join(avail_clouds.keys())))
223 account = Kamaki.get_account(options.cloud)
226 "Cloud: `$s' exists but is not valid!" % options.cloud)
228 kamaki = Kamaki(account, out)
229 except ClientError as e:
230 raise FatalError("Astakos client: %d %s" % (e.status, e.message))
232 if options.upload and not options.force:
233 if kamaki.object_exists(options.upload):
234 raise FatalError("Remote storage service object: `%s' exists "
235 "(use --force to overwrite it)." % options.upload)
236 if kamaki.object_exists("%s.md5sum" % options.upload):
237 raise FatalError("Remote storage service object: `%s.md5sum' "
238 "exists (use --force to overwrite it)." %
241 if options.register and not options.force:
242 if kamaki.object_exists("%s.meta" % options.upload):
243 raise FatalError("Remote storage service object `%s.meta' exists "
244 "(use --force to overwrite it)." % options.upload)
246 disk = Disk(options.source, out, options.tmp)
248 def signal_handler(signum, frame):
251 signal.signal(signal.SIGINT, signal_handler)
252 signal.signal(signal.SIGTERM, signal_handler)
254 snapshot = disk.snapshot()
256 image = disk.get_image(snapshot)
258 for sysprep in options.disabled_syspreps:
259 image.os.disable_sysprep(image.os.get_sysprep_by_name(sysprep))
261 for sysprep in options.enabled_syspreps:
262 image.os.enable_sysprep(image.os.get_sysprep_by_name(sysprep))
264 if options.print_sysprep:
265 image.os.print_syspreps()
268 if options.outfile is None and not options.upload:
272 image.os.do_sysprep()
274 metadata = image.os.meta
276 size = options.shrink and image.shrink() or image.size
277 metadata.update(image.meta)
279 # Add command line metadata to the collected ones...
280 metadata.update(options.metadata)
283 checksum = md5.compute(image.device, size)
285 metastring = unicode(json.dumps(
286 {'properties': metadata,
287 'disk-format': 'diskdump'}, ensure_ascii=False))
289 if options.outfile is not None:
290 image.dump(options.outfile)
292 out.output('Dumping metadata file ...', False)
293 with open('%s.%s' % (options.outfile, 'meta'), 'w') as f:
297 out.output('Dumping md5sum file ...', False)
298 with open('%s.%s' % (options.outfile, 'md5sum'), 'w') as f:
299 f.write('%s %s\n' % (checksum,
300 os.path.basename(options.outfile)))
303 # Destroy the image instance. We only need the snapshot from now on
304 disk.destroy_image(image)
310 out.output("Uploading image to the storage service:")
311 with open(snapshot, 'rb') as f:
312 uploaded_obj = kamaki.upload(
313 f, size, options.upload,
314 "(1/3) Calculating block hashes",
315 "(2/3) Uploading missing blocks")
316 out.output("(3/3) Uploading md5sum file ...", False)
317 md5sumstr = '%s %s\n' % (checksum,
318 os.path.basename(options.upload))
319 kamaki.upload(StringIO.StringIO(md5sumstr),
321 remote_path="%s.%s" % (options.upload, 'md5sum'))
326 img_type = 'public' if options.public else 'private'
327 out.output('Registering %s image with the compute service ...'
329 result = kamaki.register(options.register, uploaded_obj,
330 metadata, options.public)
332 out.output("Uploading metadata file ...", False)
333 metastring = unicode(json.dumps(result, ensure_ascii=False))
334 kamaki.upload(StringIO.StringIO(metastring),
335 size=len(metastring),
336 remote_path="%s.%s" % (options.upload, 'meta'))
339 out.output("Sharing md5sum file ...", False)
340 kamaki.share("%s.md5sum" % options.upload)
342 out.output("Sharing metadata file ...", False)
343 kamaki.share("%s.meta" % options.upload)
347 except ClientError as e:
348 raise FatalError("Service client: %d %s" % (e.status, e.message))
351 out.output('cleaning up ...')
354 out.success("snf-image-creator exited without errors")
361 ret = image_creator()
363 except FatalError as e:
364 colored = sys.stderr.isatty()
365 SimpleOutput(colored).error(e)
368 if __name__ == '__main__':
371 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :