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|
"""
Enables the "cobbler import" command to seed cobbler
information with available distribution from rsync mirrors
and mounted DVDs.
Copyright 2006-2007, Red Hat, Inc
Michael DeHaan <mdehaan@redhat.com>
This software may be freely redistributed under the terms of the GNU
general public license.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
"""
import cexceptions
import os
import os.path
import traceback
import sub_process
import api
WGET_CMD = "wget --mirror --no-parent --no-host-directories --directory-prefix %s/%s %s"
RSYNC_CMD = "rsync -a %s %s %s/ks_mirror/%s --exclude-from=/etc/cobbler/rsync.exclude --delete --delete-excluded --progress"
# MATCH_LIST uses path segments of mirror URLs to assign kickstart
# files. It's not all that intelligent.
# patches welcome!
MATCH_LIST = (
( "FC-5/" , "/etc/cobbler/kickstart_fc5.ks" ),
( "FC-6/" , "/etc/cobbler/kickstart_fc6.ks" ),
( "RHEL-4/" , "/etc/cobbler/kickstart_fc5.ks" ),
( "RHEL-5/" , "/etc/cobbler/kickstart_fc6.ks" ),
( "Centos/4" , "/etc/cobbler/kickstart_fc5.ks" ),
( "Centos/5" , "/etc/cobbler/kickstart_fc6.ks" ),
( "1/" , "/etc/cobbler/kickstart_fc5.ks" ),
( "2/" , "/etc/cobbler/kickstart_fc5.ks" ),
( "3/" , "/etc/cobbler/kickstart_fc5.ks" ),
( "4/" , "/etc/cobbler/kickstart_fc5.ks" ),
( "5/" , "/etc/cobbler/kickstart_fc5.ks" ),
( "6/" , "/etc/cobbler/kickstart_fc6.ks" ),
)
# the following is a filter to reduce import scan times,
# particularly over NFS. these indicate directory segments
# that we do not need to recurse into. In the case where
# these path segments are important to a certain distro import,
# it's a bug, and this list needs to be edited. please submit
# patches or reports in this case.
DIRECTORY_SIEVE = [
"debuginfo", "ppc", "s390x", "s390", "variant-src",
"ftp-isos", "compat-layer", "compat-layer-tree",
"SRPMS", "headers", "dosutils", "Publishers",
"LIVE", "RedHat", "image-template", "logs",
"EMEA", "APAC", "isolinux",
"debug", "repodata", "repoview", "Fedora",
"stylesheet-images", "buildinstall", "partner", "noarch",
"src-isos", "dvd-isos", "docs", "misc"
]
class Importer:
def __init__(self,api,config,mirror,mirror_name):
self.api = api
self.config = config
self.mirror = mirror
self.mirror_name = mirror_name
self.distros = config.distros()
self.profiles = config.profiles()
self.systems = config.systems()
self.settings = config.settings()
self.serialize_counter = 0
def run(self):
if self.mirror is None:
raise cexceptions.CobblerException("import_failed","no mirror specified")
if self.mirror_name is None:
raise cexceptions.CobblerException("import_failed","no mirror-name specified")
if self.mirror_name is None:
raise cexceptions.CobblerException("import_failed","must specify --mirror-name")
# make the output path
self.path = "%s/ks_mirror/%s" % (self.settings.webdir, self.mirror_name)
self.mkdir(self.path)
# prevent rsync from creating the directory name twice
if not self.mirror.endswith("/"):
self.mirror = "%s/" % self.mirror
if self.mirror.startswith("http://"):
# http mirrors are kind of primative. rsync is better.
self.run_this(WGET_CMD, (self.settings.webdir, self.mirror_name, self.mirror))
else:
# use rsync.. no SSH for public mirrors and local files.
# presence of user@host syntax means use SSH
spacer = ""
if not self.mirror.startswith("rsync://") and not self.mirror.startswith("/"):
spacer = ' -e "ssh" '
self.run_this(RSYNC_CMD, (spacer, self.mirror, self.settings.webdir, self.mirror_name))
processed_repos = {}
os.path.walk(self.path, self.walker, processed_repos)
self.guess_kickstarts()
return True
def mkdir(self, dir):
try:
os.makedirs(dir)
except:
print "- didn't create %s" % dir
def run_this(self, cmd, args):
my_cmd = cmd % args
print "- %s" % my_cmd
sub_process.call(my_cmd,shell=True)
def guess_kickstarts(self):
"""
For all of the profiles in the config w/o a kickstart, look
at the kernel path, from that, see if we can guess the distro,
and if we can, assign a kickstart if one is available for it.
"""
# FIXME: refactor this and make it more intelligent
# FIXME: if no distro can be found from the path, find through alternative means.
for profile in self.profiles:
distro = self.distros.find(profile.distro)
if distro is None:
raise cexceptions.CobblerException("orphan_distro2",profile.name,profile.distro)
kpath = distro.kernel
if not kpath.startswith("%s/ks_mirror/" % self.settings.webdir):
continue
for entry in MATCH_LIST:
(part, kickstart) = entry
if kpath.find(part) != -1:
if os.path.exists(kickstart):
print "*** ASSIGNING kickstart: %s" % kickstart
profile.set_kickstart(kickstart)
# from the kernel path, the tree path is always two up.
dirname = os.path.dirname(kpath)
print "dirname = %s" % dirname
tokens = dirname.split("/")
tokens = tokens[:-2]
base = "/".join(tokens)
dest_link = os.path.join(self.settings.webdir, "links", distro.name)
print "base=%s -> %s to %s" % (base, dest_link)
if not os.path.exists(dest_link):
os.symlink(base, dest_link)
base = base.replace(self.settings.webdir,"")
tree = "tree=http://%s/cblr/links/%s" % distro.name
print "*** KICKSTART TREE = %s" % tree
distro.set_ksmeta(tree)
self.serialize_counter = self.serialize_counter + 1
if (self.serialize_counter % 5) == 0:
self.api.serialize()
def walker(self,processed_repos,dirname,fnames):
initrd = None
kernel = None
for tentative in fnames:
for filter_out in DIRECTORY_SIEVE:
if tentative == filter_out:
fnames.remove(tentative)
print "%s" % dirname
if not self.is_pxe_or_virt_dir(dirname):
return
# keep track of where we've run create repo
for x in fnames:
if x.startswith("initrd"):
initrd = os.path.join(dirname,x)
if x.startswith("vmlinuz"):
kernel = os.path.join(dirname,x)
if initrd is not None and kernel is not None:
self.add_entry(dirname,kernel,initrd)
# repo is up two locations and down in repodata
path_parts = kernel.split("/")[:-3]
comps_path = "/".join(path_parts)
print "- looking for comps in %s" % comps_path
comps_file = os.path.join(comps_path, "repodata", "comps.xml")
if not os.path.exists(comps_file):
print "- no comps file found: %s" % comps_file
try:
# don't run creatrepo twice -- this can happen easily for Xen and PXE, when
# they'll share same repo files.
if not processed_repos.has_key(comps_path):
cmd = "createrepo --basedir / --groupfile %s %s" % (comps_file, comps_path)
print "- %s" % cmd
sub_process.call(cmd,shell=True)
print "- repository updated"
processed_repos[comps_path] = 1
except:
print "- error launching createrepo, ignoring for now..."
traceback.print_exc()
def add_entry(self,dirname,kernel,initrd):
pxe_arch = self.get_pxe_arch(dirname)
name = self.get_proposed_name(dirname)
if self.distros.find(name) is not None:
print "already registered: %s" % name
else:
distro = self.config.new_distro()
distro.set_name(name)
distro.set_kernel(kernel)
distro.set_initrd(initrd)
distro.set_arch(pxe_arch)
self.distros.add(distro)
print "(distro added)"
if self.profiles.find(name) is None:
profile = self.config.new_profile()
profile.set_name(name)
profile.set_distro(name)
self.profiles.add(profile)
print "(profile added)"
self.serialize_counter = self.serialize_counter + 1
if (self.serialize_counter % 5) == 0:
self.api.serialize()
def get_proposed_name(self,dirname):
name = "-".join(dirname.split("/"))
if name.startswith("-"):
name = name[1:]
# some of this filtering is a bit excessive though we want to compensate for
# finding "tree" vs "image" in the path and so on, and being a little more
# aggressive in filtering will reduce path name lengths in all circumstances.
# long paths are bad because they are hard to type, look weird, and run up
# against the 255 char kernel options limit too quickly.
name = name.replace("var-www-cobbler-", "")
name = name.replace("ks-mirror-","")
name = name.replace("os-images-","")
name = name.replace("tree-images-","")
name = name.replace("images-","")
name = name.replace("tree-","")
name = name.replace("--","-")
return name
def get_pxe_arch(self,dirname):
t = dirname
if t.find("x86_64") != -1:
return "x86_64"
if t.find("ia64") != -1:
return "ia64"
if t.find("i386") != -1 or t.find("386") != -1 or t.find("x86") != -1:
return "x86"
return "x86"
def is_pxe_or_virt_dir(self,dirname):
if dirname.find("pxe") != -1 or dirname.find("xen") != -1 or dirname.find("virt") != -1:
return True
return False
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