X-Git-Url: https://code.grnet.gr/git/snf-image-creator/blobdiff_plain/c408053fabcc04a53440b0a2d602b89d7d22f1b1..136754298b63928e3ab593c2489fcb6e17c1332e:/image_creator/main.py diff --git a/image_creator/main.py b/image_creator/main.py old mode 100644 new mode 100755 index 6308a57..40bc880 --- a/image_creator/main.py +++ b/image_creator/main.py @@ -1,3 +1,5 @@ +#!/usr/bin/env python + # Copyright 2011 GRNET S.A. All rights reserved. # # Redistribution and use in source and binary forms, with or @@ -33,54 +35,108 @@ from image_creator import get_os_class from image_creator import __version__ as version +from image_creator import FatalError from image_creator.disk import Disk +from image_creator.util import get_command, error, progress_generator, success +from clint.textui import puts, indent +from sendfile import sendfile + import sys import os import optparse -from pbs import dd - -class FatalError(Exception): - pass +dd = get_command('dd') def check_writable_dir(option, opt_str, value, parser): - if not os.path.isdir(value): - raise OptionValueError("%s is not a valid directory name" % value) + dirname = os.path.dirname(value) + name = os.path.basename(value) + if dirname and not os.path.isdir(dirname): + parser.error("`%s' is not an existing directory" % dirname) + + if not name: + parser.error("`%s' is not a valid file name" % dirname) + setattr(parser.values, option.dest, value) def parse_options(input_args): - usage = "Usage: %prog [options] " + usage = "Usage: %prog [options] " parser = optparse.OptionParser(version=version, usage=usage) - parser.add_option("-o", "--outdir", type="string", dest="outdir", - default=".", action="callback", callback=check_writable_dir, - help="Output files to DIR [default: working dir]", - metavar="DIR") - parser.add_option("-f", "--force", dest="force", default=False, action="store_true", help="Overwrite output files if they exist") + parser.add_option("--no-cleanup", dest="cleanup", default=True, + help="Don't cleanup sensitive data before extracting the image", + action="store_false") + + parser.add_option("--no-sysprep", dest="sysprep", default=True, + help="Don't perform system preperation before extracting the image", + action="store_false") + parser.add_option("--no-shrink", dest="shrink", default=True, help="Don't shrink any partition before extracting the image", action="store_false") + parser.add_option("-o", "--outfile", type="string", dest="outfile", + default=None, action="callback", callback=check_writable_dir, + help="Output image file", + metavar="FILE") + + parser.add_option("-u", "--upload", dest="upload", default=False, + help="Upload image to a pithos repository using kamaki", + action="store_true") + + parser.add_option("-r", "--register", dest="register", default=False, + help="Register image to okeanos using kamaki", action="store_true") + options, args = parser.parse_args(input_args) - if len(args) != 2: - parser.error('input media or name are missing') + if len(args) != 1: + parser.error('Wrong number of arguments') options.source = args[0] - options.name = args[1] - if not os.path.exists(options.source): - parser.error('Input media is not accessible') + parser.error('input media is not accessible') + + if options.register: + options.upload = True + + if options.outfile is None and not options.upload: + parser.error('either outfile (-o) or upload (-u) must be set.') return options -def main(): +def extract_image(device, outfile, size): + blocksize = 4194304 # 4MB + progress_size = (size + 1048575) // 1048576 # in MB + progressbar = progress_generator("Dumping image file: ", + progress_size) + source = open(device, "r") + try: + dest = open(outfile, "w") + try: + left = size + offset = 0 + progressbar.next() + while left > 0: + length = min(left, blocksize) + sent = sendfile(dest.fileno(), source.fileno(), offset, length) + offset += sent + left -= sent + for i in range(4): + progressbar.next() + finally: + dest.close() + finally: + source.close() + + success('Image file %s was successfully created' % outfile) + +def image_creator(): + puts('snf-image-creator %s\n' % version) options = parse_options(sys.argv[1:]) if os.geteuid() != 0: @@ -88,8 +144,8 @@ def main(): % os.path.basename(sys.argv[0])) if not options.force: - for ext in ('diskdump', 'meta'): - filename = "%s/%s.%s" % (options.outdir, options.name, ext) + for extension in ('', '.meta'): + filename = "%s%s" % (options.outfile, extension) if os.path.exists(filename): raise FatalError("Output file %s exists " "(use --force to overwrite it)." % filename) @@ -98,36 +154,50 @@ def main(): try: dev = disk.get_device() dev.mount() + osclass = get_os_class(dev.distro, dev.ostype) image_os = osclass(dev.root, dev.g) metadata = image_os.get_metadata() - image_os.data_cleanup() + + puts() + + if options.sysprep: + image_os.sysprep() + + if options.cleanup: + image_os.data_cleanup() + dev.umount() + size = options.shrink and dev.shrink() or dev.size() metadata['size'] = str(size // 2 ** 20) - dd('if=%s' % dev.device, - 'of=%s/%s.%s' % (options.outdir, options.name, 'diskdump'), - 'bs=4M', 'count=%d' % ((size + 1) // 2 ** 22)) + if options.outfile is not None: + f = open('%s.%s' % (options.outfile, 'meta'), 'w') + try: + for key in metadata.keys(): + f.write("%s=%s\n" % (key, metadata[key])) + finally: + f.close() - f = open('%s/%s.%s' % (options.outdir, options.name, 'meta'), 'w') - for key in metadata.keys(): - f.write("%s=%s\n" % (key, metadata[key])) - f.close() + extract_image(dev.device, options.outfile, size) finally: + puts('cleaning up...') disk.cleanup() return 0 -COLOR_BLACK = "\033[00m" -COLOR_RED = "\033[1;31m" -if __name__ == '__main__': +def main(): try: - ret = main() + ret = image_creator() sys.exit(ret) except FatalError as e: - print >> sys.stderr, "\n%sError: %s%s\n" % (COLOR_RED, e, COLOR_BLACK) + error(e) sys.exit(1) + +if __name__ == '__main__': + main() + # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :