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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 glob
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"
TRY_LIST = [
"Fedora", "RedHat", "Client", "Server", "Centos",
"Fedora/RPMS", "RedHat/RPMS", "Client/RPMS", "Server/RPMS", "Centos/RPMS",
"RPMS"
]
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()
# ----------------------------------------------------------------------
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))
self.processed_repos = {}
os.path.walk(self.path, self.walker, None)
self.guess_kickstarts()
self.api.sync()
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
rc = sub_process.call(my_cmd,shell=True)
if rc != 0:
raise cexceptions.CobblerException("Command failed.")
# ----------------------------------------------------------------------
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.
"""
for profile in self.profiles:
distro = self.distros.find(profile.distro)
if distro is None:
raise cexceptions.CobblerException("orphan_distro2",profile.name,profile.distro)
if not distro.kernel.startswith("%s/ks_mirror/" % self.settings.webdir):
# this isn't a mirrored profile, so we won't touch it
print "- skipping %s since profile isn't mirrored" % profile.name
continue
if distro.ks_meta.has_key("tree") or profile.ks_meta.has_key("tree"):
# this distro has already been imported, do not proceed
print "- skipping %s since existing tree attributes were found" % profile.name
continue
kdir = os.path.dirname(distro.kernel)
base_dir = "/".join(kdir.split("/")[0:-2])
for try_entry in TRY_LIST:
for dnames in [ "fedora", "centos", "redhat" ]:
try_dir = os.path.join(base_dir, try_entry)
if os.path.exists(try_dir):
rpms = glob.glob(os.path.join(try_dir, "*release-*"))
for rpm in rpms:
if rpm.find("notes") != -1:
continue
results = self.scan_rpm_filename(rpm)
if results is None:
continue
(flavor, major, minor) = results
print "- determining best kickstart for %s %s" % (flavor, major)
kickstart = self.set_kickstart(profile, flavor, major, minor)
print "- kickstart=%s" % kickstart
self.configure_tree_location(distro)
self.distros.add(distro) # re-save
self.api.serialize()
# --------------------------------------------------------------------
def configure_tree_location(self, distro):
# find the tree location
dirname = os.path.dirname(distro.kernel)
tokens = dirname.split("/")
tokens = tokens[:-2]
base = "/".join(tokens)
dest_link = os.path.join(self.settings.webdir, "links", distro.name)
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" % (self.settings.server, distro.name)
print "- %s" % tree
distro.set_ksmeta(tree)
# ---------------------------------------------------------------------
def set_kickstart(self, profile, flavor, major, minor):
if flavor == "fedora":
if major >= 6:
return profile.set_kickstart("/etc/cobbler/kickstart_fc6.ks")
if flavor == "redhat" or flavor == "centos":
if major >= 5:
return profile.set_kickstart("/etc/cobbler/kickstart_fc6.ks")
print "- using default kickstart file choice"
return profile.set_kickstart("/etc/cobbler/kickstart_fc5.ks")
# ---------------------------------------------------------------------
def scan_rpm_filename(self, rpm):
"""
Determine what the distro is based on the release RPM filename.
"""
rpm = os.path.basename(rpm)
# if it looks like a RHEL RPM we'll cheat.
# it may be slightly wrong, but it will be close enough
# for RHEL5 we can get it exactly.
for x in [ "4AS", "4ES", "4WS" ]:
if rpm.find(x) != -1:
return ("redhat", 4, 0)
for x in [ "3AS", "3ES", "3WS" ]:
if rpm.find(x) != -1:
return ("redhat", 3, 0)
for x in [ "2AS", "2ES", "2WS" ]:
if rpm.find(x) != -1:
return ("redhat", 2, 0)
print "- scanning rpm: %s" % rpm
(first, rest) = rpm.split("-release-")
flavor = first.lower()
# if there's still a hypen in the filename, get the trailing part.
rdx = rest.find("-")
if rdx != -1:
rest = rest[rdx+1:]
# if there's still a hypen in the filename, get the beginning part
rdx = rest.rfind("-")
if rdx != -1:
rest = rest[:rdx-1]
tokens = rest.split(".")
major = float(tokens[0])
minor = float(tokens[1])
return (flavor, major, minor)
# ----------------------------------------------------------------------
def walker(self,foo,dirname,fnames):
initrd = None
kernel = None
if not self.is_relevant_dir(dirname):
return
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.last_distro = self.add_entry(dirname,kernel,initrd)
path_parts = kernel.split("/")[:-3]
comps_path = "/".join(path_parts)
print "- running repo update on %s" % comps_path
self.process_comps_file(comps_path)
# ----------------------------------------------------------------------
def process_comps_file(self, 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
return
try:
# don't run creatrepo twice -- this can happen easily for Xen and PXE, when
# they'll share same repo files.
if not self.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)
self.processed_repos[comps_path] = 1
except:
print "- error launching createrepo, ignoring..."
traceback.print_exc()
def add_entry(self,dirname,kernel,initrd):
pxe_arch = self.get_pxe_arch(dirname)
name = self.get_proposed_name(dirname)
existing_distro = self.distros.find(name)
if existing_distro is not None:
print "- modifying existing distro: %s" % name
distro = existing_distro
else:
print "- creating new distro: %s" % name
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)
existing_profile = self.profiles.find(name)
if existing_profile is None:
print "- creating new profile: %s" % name
profile = self.config.new_profile()
else:
print "- modifying existing profile: %s" % name
profile = existing_profile
profile.set_name(name)
profile.set_distro(name)
self.profiles.add(profile)
self.api.serialize()
return distro
def get_proposed_name(self,dirname):
name = "-".join(dirname.split("/"))
if name.startswith("-"):
name = name[1:]
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("--","-")
name = name.replace("-pxeboot","")
return name
def get_pxe_arch(self,dirname):
t = dirname.lower()
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_relevant_dir(self,dirname):
for x in [ "pxe", "xen", "virt" ]:
if dirname.find(x) != -1:
return True
return False
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