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Viewing changes to bin/ivle-buildjail

  • Committer: David Coles
  • Date: 2009-11-27 05:34:33 UTC
  • mto: This revision was merged to the branch mainline in revision 1322.
  • Revision ID: coles.david@gmail.com-20091127053433-8ki9nm6xrkogxq67
Added diagram of system architecture

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bin/ivle-buildjail
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import shutil
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import ivle.conf
 
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import ivle.config
 
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import ivle.jailbuilder.debian
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usage = """usage: %prog [options]
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(requires root)
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Builds or updates the base IVLE jail."""
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conf = ivle.config.Config()
 
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build_path = ivle.conf.jail_system_build
 
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# Parse arguments
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parser = optparse.OptionParser(usage)
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parser.add_option("-r", "--recreate",
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    action="store_true", dest="recreate",
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    help='''Completely recreate the jail - don't just update its IVLE code.
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Be warned, this may download hundreds of megabytes!''')
 
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parser.add_option("-u", "--upgrade",
 
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    action="store_true", dest="upgrade",
 
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    help='''Apply any package updates in the jail.''')
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parser.add_option("-m", "--mirror",
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    action="store", dest="apt_mirror",
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    help="Sets the apt mirror used when recreating the jail.")
 
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    help="Sets the apt mirror.", default=conf['jail']['mirror'])
 
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parser.add_option("--python-site-packages",
 
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    action="store", dest="python_site_packages",
 
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    help="Path to Python site packages directory inside the jail.",
 
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    default=None)
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(options, args) = parser.parse_args(sys.argv)
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if os.geteuid() != 0:
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    print >> sys.stderr, "Must be root to run buildjail."
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    sys.exit(1)
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if not options.recreate and not os.path.exists(ivle.conf.jail_system_build):
 
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if not options.recreate and not os.path.exists(build_path):
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    print >> sys.stderr, "No jail exists -- please rerun with -r."
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    sys.exit(1)
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if (options.python_site_packages is not None and
 
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    options.python_site_packages[:1] not in (os.path.sep, os.path.altsep)):
 
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    print >> sys.stderr, "python-site-packages must be an absolute path."
 
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    sys.exit(1)
 
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if options.recreate:
 
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    options.upgrade = True
 
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    # Create the jail and its subdirectories
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    # Note: Other subdirs will be made by copying files
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    if options.apt_mirror is not None:
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        os.environ['MIRROR'] = options.apt_mirror
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    # XXX: buildjail.sh should be reimplemented in Python, with its envvars
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    # turned into config options.
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    if os.spawnvp(os.P_WAIT, 'setup/buildjail.sh',
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                  ['setup/buildjail.sh', ivle.conf.jail_system_build]) != 0:
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        print >> sys.stderr, "Jail creation failed."
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        sys.exit(1)
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# Copy all console and operating system files into the jail
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services_path = os.path.join(ivle.conf.share_path, 'services')
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jail_services_path = os.path.join(ivle.conf.jail_system_build,
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                                  services_path[1:])
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if os.path.exists(jail_services_path):
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    shutil.rmtree(jail_services_path)
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shutil.copytree(services_path, jail_services_path)
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# Also copy the IVLE lib directory into the jail
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# This is necessary for running certain services
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ivle_site_packages = os.path.join(ivle.conf.python_site_packages, 'ivle')
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jail_site_packages = os.path.join(ivle.conf.jail_system_build,
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                                  ivle_site_packages[1:])
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if os.path.exists(jail_site_packages):
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    shutil.rmtree(jail_site_packages)
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shutil.copytree(ivle_site_packages, jail_site_packages)
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# IMPORTANT: ivle/conf/conf.py contains details which could compromise security
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# if left in the jail (such as the DB password). We delete it now! It would be
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# shadowed by the per-user conf.py anyway, but it's best to be safe.
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os.unlink(os.path.join(jail_site_packages, 'conf/conf.py'))
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# XXX: Shouldn't copy the compiled files at all, but compile them in the jail!
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os.unlink(os.path.join(jail_site_packages, 'conf/conf.pyc'))
 
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    os.system('rm -rf --one-file-system ' + build_path)
 
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    ivle.jailbuilder.debian.debootstrap_create_jail(conf['jail']['suite'],
 
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              build_path, mirror=options.apt_mirror)
 
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    ivle.jailbuilder.debian.apt_update_cache(build_path)
 
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    ivle.jailbuilder.debian.apt_install(build_path,
 
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                        ['python2.5', 'python-cjson', 'python-svn'])
 
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    ivle.jailbuilder.debian.apt_clean(build_path)
 
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if options.upgrade:
 
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    # Run apt-get update, apt-get upgrade and apt-get clean.
 
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    ivle.jailbuilder.debian.mangle_sources_list(build_path, clobber=True)
 
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    ivle.jailbuilder.debian.mangle_sources_list(build_path, lines=[
 
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            'deb %s %s%s %s' % (options.apt_mirror, conf['jail']['suite'],
 
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                                pocket, ' '.join(['main', 'universe']))
 
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            for pocket in ('', '-updates', '-security')])
 
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    # Add any extra site apt sources.
 
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    if conf['jail']['extra_sources']:
 
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        ivle.jailbuilder.debian.mangle_sources_list(build_path,
 
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                  conf['jail']['extra_sources'])
 
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    # Add any extra site apt keys.
 
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    if conf['jail']['extra_keys']:
 
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        ivle.jailbuilder.debian.apt_add_key(build_path,
 
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                                            conf['jail']['extra_keys'])
 
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    ivle.jailbuilder.debian.apt_update_cache(build_path)
 
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    ivle.jailbuilder.debian.apt_upgrade(build_path)
 
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    # Install any extra site packages.
 
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    if conf['jail']['extra_packages']:
 
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        ivle.jailbuilder.debian.apt_install(build_path,
 
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                  conf['jail']['extra_packages'])
 
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    ivle.jailbuilder.debian.apt_clean(build_path)
 
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if conf['jail']['devmode']:
 
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    # Copy all console and operating system files into the jail
 
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    services_path = os.path.join(ivle.conf.share_path, 'services')
 
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    jail_services_path = os.path.join(build_path, services_path[1:])
 
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    if os.path.exists(jail_services_path):
 
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        shutil.rmtree(jail_services_path)
 
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    shutil.copytree(services_path, jail_services_path)
 
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    # Also copy the IVLE lib directory into the jail
 
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    # This is necessary for running certain services
 
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    # ivle_site_packages is the IVLE install location outside the jail
 
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    ivle_site_packages = os.path.dirname(ivle.__file__)
 
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    if options.python_site_packages is None:
 
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        # Get the site packages from the IVLE install location *OUTSIDE* the
 
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        # jail. Warning! This only works if you have the same Python site
 
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        # packages directory inside and out (ie. same Python version).
 
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        # If not, you should use --python-site-packages.
 
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        jail_site_packages = os.path.join(build_path, ivle_site_packages[1:])
 
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    else:
 
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        # User-specified site packages
 
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        jail_site_packages = os.path.join(build_path,
 
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                                options.python_site_packages[1:], "ivle")
 
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    if os.path.exists(jail_site_packages):
 
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        shutil.rmtree(jail_site_packages)
 
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    shutil.copytree(ivle_site_packages, jail_site_packages)
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if os.spawnvp(os.P_WAIT, 'rsync', ['rsync', '-a', '--delete',
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              ivle.conf.jail_system_build + '/', ivle.conf.jail_system]) != 0:
 
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              build_path + '/', ivle.conf.jail_system]) != 0:
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    print >> sys.stderr, "Jail copying failed."
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    sys.exit(1)
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