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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33 # documentation are those of the authors and should not be
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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
54 def check_writable_dir(option, opt_str, value, parser):
55 dirname = os.path.dirname(value)
56 name = os.path.basename(value)
57 if dirname and not os.path.isdir(dirname):
58 raise FatalError("`%s' is not an existing directory" % dirname)
61 raise FatalError("`%s' is not a valid file name" % dirname)
63 setattr(parser.values, option.dest, value)
66 def parse_options(input_args):
67 usage = "Usage: %prog [options] <input_media>"
68 parser = optparse.OptionParser(version=version, usage=usage)
70 parser.add_option("-o", "--outfile", type="string", dest="outfile",
71 default=None, action="callback",
72 callback=check_writable_dir, help="dump image to FILE",
75 parser.add_option("-f", "--force", dest="force", default=False,
77 help="overwrite output files if they exist")
79 parser.add_option("-s", "--silent", dest="silent", default=False,
80 help="output only errors",
83 parser.add_option("-u", "--upload", dest="upload", type="string",
85 help="upload the image to pithos with name FILENAME",
88 parser.add_option("-r", "--register", dest="register", type="string",
90 help="register the image with ~okeanos as IMAGENAME",
93 parser.add_option("-m", "--metadata", dest="metadata", default=[],
94 help="add custom KEY=VALUE metadata to the image",
95 action="append", metavar="KEY=VALUE")
97 parser.add_option("-t", "--token", dest="token", type="string",
98 default=None, help="use this authentication token when "
99 "uploading/registering images")
101 parser.add_option("-a", "--authentication-url", dest="url", type="string",
102 default=None, help="use this authentication URL when "
103 "uploading/registering images")
105 parser.add_option("-c", "--cloud", dest="cloud", type="string",
106 default=None, help="use this saved cloud account to "
107 "authenticate against a cloud when "
108 "uploading/registering images")
110 parser.add_option("--print-sysprep", dest="print_sysprep", default=False,
111 help="print the enabled and disabled system preparation "
112 "operations for this input media", action="store_true")
114 parser.add_option("--enable-sysprep", dest="enabled_syspreps", default=[],
115 help="run SYSPREP operation on the input media",
116 action="append", metavar="SYSPREP")
118 parser.add_option("--disable-sysprep", dest="disabled_syspreps",
119 help="prevent SYSPREP operation from running on the "
120 "input media", default=[], action="append",
123 parser.add_option("--no-sysprep", dest="sysprep", default=True,
124 help="don't perform any system preparation operation",
125 action="store_false")
127 parser.add_option("--no-shrink", dest="shrink", default=True,
128 help="don't shrink any partition", action="store_false")
130 parser.add_option("--public", dest="public", default=False,
131 help="register image with cyclades as public",
134 parser.add_option("--tmpdir", dest="tmp", type="string", default=None,
135 help="create large temporary image files under DIR",
138 options, args = parser.parse_args(input_args)
141 parser.error('Wrong number of arguments')
143 options.source = args[0]
144 if not os.path.exists(options.source):
145 raise FatalError("Input media `%s' is not accessible" % options.source)
147 if options.register and not options.upload:
148 raise FatalError("You also need to set -u when -r option is set")
150 if options.upload and (options.token is None or options.url is None) and \
151 options.cloud is None:
153 err = "You need to either specify an authentication URL and token " \
154 "pair or an available cloud name."
156 raise FatalError("Image uploading cannot be performed. %s" % err)
158 if options.tmp is not None and not os.path.isdir(options.tmp):
159 raise FatalError("The directory `%s' specified with --tmpdir is not "
160 "valid" % options.tmp)
163 for m in options.metadata:
165 key, value = m.split('=', 1)
167 raise FatalError("Metadata option: `%s' is not in KEY=VALUE "
170 options.metadata = meta
176 options = parse_options(sys.argv[1:])
178 if options.outfile is None and not options.upload and not \
179 options.print_sysprep:
180 raise FatalError("At least one of `-o', `-u' or `--print-sysprep' "
186 out = OutputWthProgress(True) if sys.stderr.isatty() else \
189 title = 'snf-image-creator %s' % version
191 out.output('=' * len(title))
193 if os.geteuid() != 0:
194 raise FatalError("You must run %s as root"
195 % os.path.basename(sys.argv[0]))
197 if not options.force and options.outfile is not None:
198 for extension in ('', '.meta', '.md5sum'):
199 filename = "%s%s" % (options.outfile, extension)
200 if os.path.exists(filename):
201 raise FatalError("Output file `%s' exists "
202 "(use --force to overwrite it)." % filename)
204 # Check if the authentication info is valid. The earlier the better
205 if options.token is not None and options.url is not None:
207 account = Kamaki.create_account(options.url, options.token)
209 raise FatalError("The authentication token and/or URL you "
210 "provided is not valid!")
212 kamaki = Kamaki(account, out)
213 except ClientError as e:
214 raise FatalError("Astakos client: %d %s" % (e.status, e.message))
216 avail_clouds = Kamaki.get_clouds()
217 if options.cloud not in avail_clouds.keys():
219 "Cloud: `%s' does not exist.\n\nAvailable clouds:\n\n\t%s\n"
220 % (options.cloud, "\n\t".join(avail_clouds.keys())))
222 account = Kamaki.get_account(options.cloud)
225 "Cloud: `$s' exists but is not valid!" % options.cloud)
227 kamaki = Kamaki(account, out)
228 except ClientError as e:
229 raise FatalError("Astakos client: %d %s" % (e.status, e.message))
231 if options.upload and not options.force:
232 if kamaki.object_exists(options.upload):
233 raise FatalError("Remote pithos object `%s' exists "
234 "(use --force to overwrite it)." % options.upload)
235 if kamaki.object_exists("%s.md5sum" % options.upload):
236 raise FatalError("Remote pithos object `%s.md5sum' exists "
237 "(use --force to overwrite it)." % options.upload)
239 if options.register and not options.force:
240 if kamaki.object_exists("%s.meta" % options.upload):
241 raise FatalError("Remote pithos object `%s.meta' exists "
242 "(use --force to overwrite it)." % options.upload)
244 disk = Disk(options.source, out, options.tmp)
246 def signal_handler(signum, frame):
249 signal.signal(signal.SIGINT, signal_handler)
250 signal.signal(signal.SIGTERM, signal_handler)
252 snapshot = disk.snapshot()
254 image = disk.get_image(snapshot)
256 for sysprep in options.disabled_syspreps:
257 image.os.disable_sysprep(image.os.get_sysprep_by_name(sysprep))
259 for sysprep in options.enabled_syspreps:
260 image.os.enable_sysprep(image.os.get_sysprep_by_name(sysprep))
262 if options.print_sysprep:
263 image.os.print_syspreps()
266 if options.outfile is None and not options.upload:
270 image.os.do_sysprep()
272 metadata = image.os.meta
274 size = options.shrink and image.shrink() or image.size
275 metadata.update(image.meta)
277 # Add command line metadata to the collected ones...
278 metadata.update(options.metadata)
281 checksum = md5.compute(image.device, size)
283 metastring = '\n'.join(
284 ['%s=%s' % (key, value) for (key, value) in metadata.items()])
287 if options.outfile is not None:
288 image.dump(options.outfile)
290 out.output('Dumping metadata file ...', False)
291 with open('%s.%s' % (options.outfile, 'meta'), 'w') as f:
295 out.output('Dumping md5sum file ...', False)
296 with open('%s.%s' % (options.outfile, 'md5sum'), 'w') as f:
297 f.write('%s %s\n' % (checksum,
298 os.path.basename(options.outfile)))
301 # Destroy the image instance. We only need the snapshot from now on
302 disk.destroy_image(image)
308 out.output("Uploading image to pithos:")
309 with open(snapshot, 'rb') as f:
310 uploaded_obj = kamaki.upload(
311 f, size, options.upload,
312 "(1/3) Calculating block hashes",
313 "(2/3) Uploading missing blocks")
314 out.output("(3/3) Uploading md5sum file ...", False)
315 md5sumstr = '%s %s\n' % (checksum,
316 os.path.basename(options.upload))
317 kamaki.upload(StringIO.StringIO(md5sumstr),
319 remote_path="%s.%s" % (options.upload, 'md5sum'))
324 img_type = 'public' if options.public else 'private'
325 out.output('Registering %s image with ~okeanos ...' % img_type,
327 kamaki.register(options.register, uploaded_obj, metadata,
330 out.output("Uploading metadata file ...", False)
331 kamaki.upload(StringIO.StringIO(metastring),
332 size=len(metastring),
333 remote_path="%s.%s" % (options.upload, 'meta'))
336 out.output("Sharing md5sum file ...", False)
337 kamaki.share("%s.md5sum" % options.upload)
339 out.output("Sharing metadata file ...", False)
340 kamaki.share("%s.meta" % options.upload)
344 except ClientError as e:
345 raise FatalError("Pithos client: %d %s" % (e.status, e.message))
348 out.output('cleaning up ...')
351 out.success("snf-image-creator exited without errors")
358 ret = image_creator()
360 except FatalError as e:
361 colored = sys.stderr.isatty()
362 SimpleOutput(colored).error(e)
365 if __name__ == '__main__':
368 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :