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
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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
56 def check_writable_dir(option, opt_str, value, parser):
57 dirname = os.path.dirname(value)
58 name = os.path.basename(value)
59 if dirname and not os.path.isdir(dirname):
60 raise FatalError("`%s' is not an existing directory" % dirname)
63 raise FatalError("`%s' is not a valid file name" % dirname)
65 setattr(parser.values, option.dest, value)
68 def parse_options(input_args):
69 usage = "Usage: %prog [options] <input_media>"
70 parser = optparse.OptionParser(version=version, usage=usage)
72 parser.add_option("-o", "--outfile", type="string", dest="outfile",
73 default=None, action="callback",
74 callback=check_writable_dir, help="dump image to FILE",
77 parser.add_option("-f", "--force", dest="force", default=False,
79 help="overwrite output files if they exist")
81 parser.add_option("-s", "--silent", dest="silent", default=False,
82 help="output only errors",
85 parser.add_option("-u", "--upload", dest="upload", type="string",
87 help="upload the image to the cloud with name FILENAME",
90 parser.add_option("-r", "--register", dest="register", type="string",
92 help="register the image with a cloud as IMAGENAME",
95 parser.add_option("-m", "--metadata", dest="metadata", default=[],
96 help="add custom KEY=VALUE metadata to the image",
97 action="append", metavar="KEY=VALUE")
99 parser.add_option("-t", "--token", dest="token", type="string",
100 default=None, help="use this authentication token when "
101 "uploading/registering images")
103 parser.add_option("-a", "--authentication-url", dest="url", type="string",
104 default=None, help="use this authentication URL when "
105 "uploading/registering images")
107 parser.add_option("-c", "--cloud", dest="cloud", type="string",
108 default=None, help="use this saved cloud account to "
109 "authenticate against a cloud when "
110 "uploading/registering images")
112 parser.add_option("--print-syspreps", dest="print_syspreps", default=False,
113 help="print the enabled and disabled system preparation "
114 "operations for this input media", action="store_true")
116 parser.add_option("--enable-sysprep", dest="enabled_syspreps", default=[],
117 help="run SYSPREP operation on the input media",
118 action="append", metavar="SYSPREP")
120 parser.add_option("--disable-sysprep", dest="disabled_syspreps",
121 help="prevent SYSPREP operation from running on the "
122 "input media", default=[], action="append",
125 parser.add_option("--print-sysprep-params", dest="print_sysprep_params",
126 default=False, help="print the needed sysprep parameters"
127 " for this input media", action="store_true")
129 parser.add_option("--sysprep-param", dest="sysprep_params", default=[],
130 help="Add KEY=VALUE system preparation parameter",
133 parser.add_option("--no-sysprep", dest="sysprep", default=True,
134 help="don't perform any system preparation operation",
135 action="store_false")
137 parser.add_option("--no-shrink", dest="shrink", default=True,
138 help="don't shrink any partition", action="store_false")
140 parser.add_option("--public", dest="public", default=False,
141 help="register image with the cloud as public",
144 parser.add_option("--allow-unsupported", dest="allow_unsupported",
145 help="Proceed with the image creation even if the media "
146 "is not supported", default=False, action="store_true")
148 parser.add_option("--tmpdir", dest="tmp", type="string", default=None,
149 help="create large temporary image files under DIR",
152 options, args = parser.parse_args(input_args)
155 parser.error('Wrong number of arguments')
157 options.source = args[0]
158 if not os.path.exists(options.source):
159 raise FatalError("Input media `%s' is not accessible" % options.source)
161 if options.register and not options.upload:
162 raise FatalError("You also need to set -u when -r option is set")
164 if options.upload and (options.token is None or options.url is None) and \
165 options.cloud is None:
167 err = "You need to either specify an authentication URL and token " \
168 "pair or an available cloud name."
170 raise FatalError("Image uploading cannot be performed. %s" % err)
172 if options.tmp is not None and not os.path.isdir(options.tmp):
173 raise FatalError("The directory `%s' specified with --tmpdir is not "
174 "valid" % options.tmp)
177 for m in options.metadata:
179 key, value = m.split('=', 1)
181 raise FatalError("Metadata option: `%s' is not in KEY=VALUE "
184 options.metadata = meta
187 for p in options.sysprep_params:
189 key, value = p.split('=', 1)
191 raise FatalError("Sysprep parameter optiont: `%s' is not in "
192 "KEY=VALUE format." % p)
193 sysprep_params[key] = value
194 options.sysprep_params = sysprep_params
200 options = parse_options(sys.argv[1:])
202 if options.outfile is None and not options.upload and not \
203 options.print_syspreps and not options.print_sysprep_params:
204 raise FatalError("At least one of `-o', `-u', `--print-syspreps' or "
205 "`--print-sysprep-params' must be set")
210 out = OutputWthProgress(True) if sys.stderr.isatty() else \
213 title = 'snf-image-creator %s' % version
215 out.output('=' * len(title))
217 if os.geteuid() != 0:
218 raise FatalError("You must run %s as root"
219 % os.path.basename(sys.argv[0]))
221 if not options.force and options.outfile is not None:
222 for extension in ('', '.meta', '.md5sum'):
223 filename = "%s%s" % (options.outfile, extension)
224 if os.path.exists(filename):
225 raise FatalError("Output file `%s' exists "
226 "(use --force to overwrite it)." % filename)
228 # Check if the authentication info is valid. The earlier the better
229 if options.token is not None and options.url is not None:
231 account = Kamaki.create_account(options.url, options.token)
233 raise FatalError("The authentication token and/or URL you "
234 "provided is not valid!")
236 kamaki = Kamaki(account, out)
237 except ClientError as e:
238 raise FatalError("Astakos client: %d %s" % (e.status, e.message))
240 avail_clouds = Kamaki.get_clouds()
241 if options.cloud not in avail_clouds.keys():
243 "Cloud: `%s' does not exist.\n\nAvailable clouds:\n\n\t%s\n"
244 % (options.cloud, "\n\t".join(avail_clouds.keys())))
246 account = Kamaki.get_account(options.cloud)
249 "Cloud: `$s' exists but is not valid!" % options.cloud)
251 kamaki = Kamaki(account, out)
252 except ClientError as e:
253 raise FatalError("Astakos client: %d %s" % (e.status, e.message))
255 if options.upload and not options.force:
256 if kamaki.object_exists(options.upload):
257 raise FatalError("Remote storage service object: `%s' exists "
258 "(use --force to overwrite it)." % options.upload)
259 if kamaki.object_exists("%s.md5sum" % options.upload):
260 raise FatalError("Remote storage service object: `%s.md5sum' "
261 "exists (use --force to overwrite it)." %
264 if options.register and not options.force:
265 if kamaki.object_exists("%s.meta" % options.upload):
266 raise FatalError("Remote storage service object `%s.meta' exists "
267 "(use --force to overwrite it)." % options.upload)
269 disk = Disk(options.source, out, options.tmp)
271 def signal_handler(signum, frame):
274 signal.signal(signal.SIGINT, signal_handler)
275 signal.signal(signal.SIGTERM, signal_handler)
277 snapshot = disk.snapshot()
279 image = disk.get_image(snapshot, sysprep_params=options.sysprep_params)
281 if image.is_unsupported() and not options.allow_unsupported:
283 "The media seems to be unsupported.\n\n" +
284 textwrap.fill("To create an image from an unsupported media, "
285 "you'll need to use the`--allow-unsupported' "
286 "command line option. Using this is highly "
287 "discouraged, since the resulting image will "
288 "not be cleared out of sensitive data and will "
289 "not get customized during the deployment."))
291 for sysprep in options.disabled_syspreps:
292 image.os.disable_sysprep(image.os.get_sysprep_by_name(sysprep))
294 for sysprep in options.enabled_syspreps:
295 image.os.enable_sysprep(image.os.get_sysprep_by_name(sysprep))
297 if options.print_syspreps:
298 image.os.print_syspreps()
301 if options.print_sysprep_params:
302 image.os.print_sysprep_params()
305 if options.outfile is None and not options.upload:
309 image.os.do_sysprep()
311 metadata = image.os.meta
313 size = options.shrink and image.shrink() or image.size
314 metadata.update(image.meta)
316 if image.is_unsupported():
317 metadata['EXCLUDE_ALL_TASKS'] = "yes"
319 # Add command line metadata to the collected ones...
320 metadata.update(options.metadata)
323 checksum = md5.compute(image.device, size)
325 metastring = unicode(json.dumps(
326 {'properties': metadata,
327 'disk-format': 'diskdump'}, ensure_ascii=False))
329 if options.outfile is not None:
330 image.dump(options.outfile)
332 out.output('Dumping metadata file ...', False)
333 with open('%s.%s' % (options.outfile, 'meta'), 'w') as f:
337 out.output('Dumping md5sum file ...', False)
338 with open('%s.%s' % (options.outfile, 'md5sum'), 'w') as f:
339 f.write('%s %s\n' % (checksum,
340 os.path.basename(options.outfile)))
343 # Destroy the image instance. We only need the snapshot from now on
344 disk.destroy_image(image)
350 out.output("Uploading image to the storage service:")
351 with open(snapshot, 'rb') as f:
352 uploaded_obj = kamaki.upload(
353 f, size, options.upload,
354 "(1/3) Calculating block hashes",
355 "(2/3) Uploading missing blocks")
356 out.output("(3/3) Uploading md5sum file ...", False)
357 md5sumstr = '%s %s\n' % (checksum,
358 os.path.basename(options.upload))
359 kamaki.upload(StringIO.StringIO(md5sumstr),
361 remote_path="%s.%s" % (options.upload, 'md5sum'))
366 img_type = 'public' if options.public else 'private'
367 out.output('Registering %s image with the compute service ...'
369 result = kamaki.register(options.register, uploaded_obj,
370 metadata, options.public)
372 out.output("Uploading metadata file ...", False)
373 metastring = unicode(json.dumps(result, ensure_ascii=False))
374 kamaki.upload(StringIO.StringIO(metastring),
375 size=len(metastring),
376 remote_path="%s.%s" % (options.upload, 'meta'))
379 out.output("Sharing md5sum file ...", False)
380 kamaki.share("%s.md5sum" % options.upload)
382 out.output("Sharing metadata file ...", False)
383 kamaki.share("%s.meta" % options.upload)
387 except ClientError as e:
388 raise FatalError("Service client: %d %s" % (e.status, e.message))
391 out.output('cleaning up ...')
394 out.success("snf-image-creator exited without errors")
401 ret = image_creator()
403 except FatalError as e:
404 colored = sys.stderr.isatty()
405 SimpleOutput(colored).error(e)
408 if __name__ == '__main__':
411 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :