3 # Copyright 2012 GRNET S.A. All rights reserved.
5 # Redistribution and use in source and binary forms, with or
6 # without modification, are permitted provided that the following
9 # 1. Redistributions of source code must retain the above
10 # copyright notice, this list of conditions and the following
13 # 2. Redistributions in binary form must reproduce the above
14 # copyright notice, this list of conditions and the following
15 # disclaimer in the documentation and/or other materials
16 # provided with the distribution.
18 # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
19 # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
22 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
25 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 # POSSIBILITY OF SUCH DAMAGE.
31 # The views and conclusions contained in the software and
32 # documentation are those of the authors and should not be
33 # interpreted as representing official policies, either expressed
34 # or implied, of GRNET S.A.
36 from image_creator import __version__ as version
37 from image_creator.disk import Disk
38 from image_creator.util import FatalError, MD5
39 from image_creator.output.cli import SilentOutput, SimpleOutput, \
41 from image_creator.kamaki_wrapper import Kamaki, ClientError
49 def check_writable_dir(option, opt_str, value, parser):
50 dirname = os.path.dirname(value)
51 name = os.path.basename(value)
52 if dirname and not os.path.isdir(dirname):
53 raise FatalError("`%s' is not an existing directory" % dirname)
56 raise FatalError("`%s' is not a valid file name" % dirname)
58 setattr(parser.values, option.dest, value)
61 def parse_options(input_args):
62 usage = "Usage: %prog [options] <input_media>"
63 parser = optparse.OptionParser(version=version, usage=usage)
65 parser.add_option("-o", "--outfile", type="string", dest="outfile",
66 default=None, action="callback",
67 callback=check_writable_dir, help="dump image to FILE",
70 parser.add_option("-f", "--force", dest="force", default=False,
72 help="overwrite output files if they exist")
74 parser.add_option("-s", "--silent", dest="silent", default=False,
75 help="output only errors",
78 parser.add_option("-u", "--upload", dest="upload", type="string",
80 help="upload the image to pithos with name FILENAME",
83 parser.add_option("-r", "--register", dest="register", type="string",
85 help="register the image with ~okeanos as IMAGENAME",
88 parser.add_option("-m", "--metadata", dest="metadata", default=[],
89 help="add custom KEY=VALUE metadata to the image",
90 action="append", metavar="KEY=VALUE")
92 parser.add_option("-t", "--token", dest="token", type="string",
93 default=None, help="use this authentication token when "
94 "uploading/registering images")
96 parser.add_option("--print-sysprep", dest="print_sysprep", default=False,
97 help="print the enabled and disabled system preparation "
98 "operations for this input media", action="store_true")
100 parser.add_option("--enable-sysprep", dest="enabled_syspreps", default=[],
101 help="run SYSPREP operation on the input media",
102 action="append", metavar="SYSPREP")
104 parser.add_option("--disable-sysprep", dest="disabled_syspreps",
105 help="prevent SYSPREP operation from running on the "
106 "input media", default=[], action="append",
109 parser.add_option("--no-sysprep", dest="sysprep", default=True,
110 help="don't perform any system preparation operation",
111 action="store_false")
113 parser.add_option("--no-shrink", dest="shrink", default=True,
114 help="don't shrink any partition", action="store_false")
116 parser.add_option("--public", dest="public", default=False,
117 help="register image with cyclades as public",
120 parser.add_option("--tmpdir", dest="tmp", type="string", default=None,
121 help="create large temporary image files under DIR",
124 options, args = parser.parse_args(input_args)
127 parser.error('Wrong number of arguments')
129 options.source = args[0]
130 if not os.path.exists(options.source):
131 raise FatalError("Input media `%s' is not accessible" % options.source)
133 if options.register and not options.upload:
134 raise FatalError("You also need to set -u when -r option is set")
136 if options.upload and options.token is None:
138 "Image uploading cannot be performed. "
139 "No authentication token is specified. Use -t to set a token")
141 if options.tmp is not None and not os.path.isdir(options.tmp):
142 raise FatalError("The directory `%s' specified with --tmpdir is not "
143 "valid" % options.tmp)
146 for m in options.metadata:
148 key, value = m.split('=', 1)
150 raise FatalError("Metadata option: `%s' is not in KEY=VALUE "
153 options.metadata = meta
159 options = parse_options(sys.argv[1:])
161 if options.outfile is None and not options.upload and not \
162 options.print_sysprep:
163 raise FatalError("At least one of `-o', `-u' or `--print-sysprep' "
169 out = OutputWthProgress(True) if sys.stderr.isatty() else \
172 title = 'snf-image-creator %s' % version
174 out.output('=' * len(title))
176 if os.geteuid() != 0:
177 raise FatalError("You must run %s as root"
178 % os.path.basename(sys.argv[0]))
180 if not options.force and options.outfile is not None:
181 for extension in ('', '.meta', '.md5sum'):
182 filename = "%s%s" % (options.outfile, extension)
183 if os.path.exists(filename):
184 raise FatalError("Output file `%s' exists "
185 "(use --force to overwrite it)." % filename)
187 # Check if the authentication token is valid. The earlier the better
188 if options.token is not None:
190 account = Kamaki.get_account(options.token)
192 raise FatalError("The authentication token you provided is not"
195 kamaki = Kamaki(account, out)
196 except ClientError as e:
197 raise FatalError("Astakos client: %d %s" % (e.status, e.message))
199 if options.upload and not options.force:
200 if kamaki.object_exists(options.upload):
201 raise FatalError("Remote pithos object `%s' exists "
202 "(use --force to overwrite it)." % options.upload)
203 if kamaki.object_exists("%s.md5sum" % options.upload):
204 raise FatalError("Remote pithos object `%s.md5sum' exists "
205 "(use --force to overwrite it)." % options.upload)
207 if options.register and not options.force:
208 if kamaki.object_exists("%s.meta" % options.upload):
209 raise FatalError("Remote pithos object `%s.meta' exists "
210 "(use --force to overwrite it)." % options.upload)
212 disk = Disk(options.source, out, options.tmp)
214 def signal_handler(signum, frame):
217 signal.signal(signal.SIGINT, signal_handler)
218 signal.signal(signal.SIGTERM, signal_handler)
220 snapshot = disk.snapshot()
222 image = disk.get_image(snapshot)
224 # If no customization is to be done, the image should be mounted ro
225 ro = (not (options.sysprep or options.shrink) or options.print_sysprep)
228 for sysprep in options.disabled_syspreps:
229 image.os.disable_sysprep(image.os.get_sysprep_by_name(sysprep))
231 for sysprep in options.enabled_syspreps:
232 image.os.enable_sysprep(image.os.get_sysprep_by_name(sysprep))
234 if options.print_sysprep:
235 image.os.print_syspreps()
238 if options.outfile is None and not options.upload:
242 err_msg = "Unable to perform the system preparation tasks. " \
243 "Couldn't mount the media%s. Use --no-sysprep if you " \
244 "don't won't to perform any system preparation task."
245 if not image.mounted:
246 raise FatalError(err_msg % "")
247 elif image.mounted_ro:
248 raise FatalError(err_msg % " read-write")
249 image.os.do_sysprep()
251 metadata = image.os.meta
255 size = options.shrink and image.shrink() or image.size
256 metadata.update(image.meta)
258 # Add command line metadata to the collected ones...
259 metadata.update(options.metadata)
262 checksum = md5.compute(image.device, size)
264 metastring = '\n'.join(
265 ['%s=%s' % (key, value) for (key, value) in metadata.items()])
268 if options.outfile is not None:
269 image.dump(options.outfile)
271 out.output('Dumping metadata file ...', False)
272 with open('%s.%s' % (options.outfile, 'meta'), 'w') as f:
276 out.output('Dumping md5sum file ...', False)
277 with open('%s.%s' % (options.outfile, 'md5sum'), 'w') as f:
278 f.write('%s %s\n' % (checksum,
279 os.path.basename(options.outfile)))
282 # Destroy the image instance. We only need the snapshot from now on
283 disk.destroy_image(image)
289 out.output("Uploading image to pithos:")
290 with open(snapshot, 'rb') as f:
291 uploaded_obj = kamaki.upload(
292 f, size, options.upload,
293 "(1/3) Calculating block hashes",
294 "(2/3) Uploading missing blocks")
295 out.output("(3/3) Uploading md5sum file ...", False)
296 md5sumstr = '%s %s\n' % (checksum,
297 os.path.basename(options.upload))
298 kamaki.upload(StringIO.StringIO(md5sumstr),
300 remote_path="%s.%s" % (options.upload, 'md5sum'))
305 img_type = 'public' if options.public else 'private'
306 out.output('Registering %s image with ~okeanos ...' % img_type,
308 kamaki.register(options.register, uploaded_obj, metadata,
311 out.output("Uploading metadata file ...", False)
312 kamaki.upload(StringIO.StringIO(metastring),
313 size=len(metastring),
314 remote_path="%s.%s" % (options.upload, 'meta'))
317 out.output("Sharing md5sum file ...", False)
318 kamaki.share("%s.md5sum" % options.upload)
320 out.output("Sharing metadata file ...", False)
321 kamaki.share("%s.meta" % options.upload)
325 except ClientError as e:
326 raise FatalError("Pithos client: %d %s" % (e.status, e.message))
329 out.output('cleaning up ...')
332 out.success("snf-image-creator exited without errors")
339 ret = image_creator()
341 except FatalError as e:
342 colored = sys.stderr.isatty()
343 SimpleOutput(colored).error(e)
346 if __name__ == '__main__':
349 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :