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"""
Builds non-live bootable CD's that have PXE-equivalent behavior
for all cobbler profiles currently in memory.
Copyright 2006-2008, Red Hat, Inc
Michael DeHaan <mdehaan@redhat.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
"""
import os
import os.path
import shutil
import sub_process
import sys
import traceback
import shutil
import sub_process
import utils
from cexceptions import *
from utils import _
# FIXME: lots of overlap with pxegen.py, should consolidate
# FIXME: disable timeouts and remove local boot for this?
HEADER = """
DEFAULT menu
PROMPT 0
MENU TITLE Cobbler | http://cobbler.et.redhat.com
TIMEOUT 200
TOTALTIMEOUT 6000
ONTIMEOUT local
LABEL local
MENU LABEL (local)
MENU DEFAULT
KERNEL chain.c32
APPEND hd0 0
"""
class BuildIso:
"""
Handles conversion of internal state to the tftpboot tree layout
"""
def __init__(self,config,verbose=False):
"""
Constructor
"""
self.verbose = verbose
self.config = config
self.api = config.api
self.distros = config.distros()
self.profiles = config.profiles()
self.systems = config.systems()
self.distmap = {}
self.distctr = 0
def make_shorter(self,distname):
if self.distmap.has_key(distname):
return self.distmap[distname]
else:
self.distctr = self.distctr + 1
self.distmap[distname] = str(self.distctr)
return str(self.distctr)
def run(self,iso=None,tempdir=None,profiles=None,systems=None):
# if iso is none, create it in . as "kickstart.iso"
if iso is None:
iso = "kickstart.iso"
if tempdir is None:
tempdir = os.path.join(os.getcwd(), "buildiso")
print _("- using/creating tempdir: %s") % tempdir
if not os.path.exists(tempdir):
os.makedirs(tempdir)
else:
shutil.rmtree(tempdir)
os.makedirs(tempdir)
# if base of tempdir does not exist, fail
# create all profiles unless filtered by "profiles"
imagesdir = os.path.join(tempdir, "images")
isolinuxdir = os.path.join(tempdir, "isolinux")
print _("- building tree for isolinux")
if not os.path.exists(imagesdir):
os.makedirs(imagesdir)
if not os.path.exists(isolinuxdir):
os.makedirs(isolinuxdir)
print _("- copying miscellaneous files")
isolinuxbin = "/usr/lib/syslinux/isolinux.bin"
menu = "/var/lib/cobbler/menu.c32"
chain = "/usr/lib/syslinux/chain.c32"
files = [ isolinuxbin, menu, chain ]
for f in files:
if not os.path.exists(f):
raise CX(_("Required file not found: %s") % f)
else:
utils.copyfile(f, os.path.join(isolinuxdir, os.path.basename(f)), self.api)
print _("- copying kernels and initrds - for profiles")
# copy all images in included profiles to images dir
for profile in self.api.profiles():
use_this = True
if profiles is not None:
which_profiles = profiles.split(",")
if not profile.name in which_profiles:
use_this = False
if use_this:
dist = profile.get_conceptual_parent()
if dist.name.lower().find("-xen") != -1:
print "skipping Xen distro: %s" % dist.name
continue
distname = self.make_shorter(dist.name)
# tempdir/isolinux/$distro/vmlinuz, initrd.img
# FIXME: this will likely crash on non-Linux breeds
f1 = os.path.join(isolinuxdir, "%s.krn" % distname)
f2 = os.path.join(isolinuxdir, "%s.img" % distname)
if not os.path.exists(dist.kernel):
raise CX("path does not exist: %s" % dist.kernel)
if not os.path.exists(dist.initrd):
raise CX("path does not exist: %s" % dist.initrd)
shutil.copyfile(dist.kernel, f1)
shutil.copyfile(dist.initrd, f2)
if systems is not None:
print _("- copying kernels and initrds - for systems")
# copy all images in included profiles to images dir
for system in self.api.systems():
if system.name in systems:
profile = system.get_conceptual_parent()
dist = profile.get_conceptual_parent()
if dist.name.find("-xen") != -1:
continue
distname = self.make_shorter(dist.name)
# tempdir/isolinux/$distro/vmlinuz, initrd.img
# FIXME: this will likely crash on non-Linux breeds
shutil.copyfile(dist.kernel, os.path.join(isolinuxdir, "%s.krn" % distname))
shutil.copyfile(dist.initrd, os.path.join(isolinuxdir, "%s.img" % distname))
print _("- generating a isolinux.cfg")
isolinuxcfg = os.path.join(isolinuxdir, "isolinux.cfg")
cfg = open(isolinuxcfg, "w+")
cfg.write(HEADER) # fixme, use template
print _("- generating profile list...")
#sort the profiles
profile_list = [profile for profile in self.profiles]
def sort_name(a,b):
return cmp(a.name,b.name)
profile_list.sort(sort_name)
for profile in profile_list:
use_this = True
if profiles is not None:
which_profiles = profiles.split(",")
if not profile.name in which_profiles:
use_this = False
if use_this:
dist = profile.get_conceptual_parent()
if dist.name.find("-xen") != -1:
continue
data = utils.blender(self.api, True, profile)
distname = self.make_shorter(dist.name)
cfg.write("\n")
cfg.write("LABEL %s\n" % profile.name)
cfg.write(" MENU LABEL %s\n" % profile.name)
cfg.write(" kernel %s.krn\n" % distname)
if data["kickstart"].startswith("/"):
data["kickstart"] = "http://%s/cblr/svc/op/ks/profile/%s" % (
data["server"],
profile.name
)
append_line = " append initrd=%s.img" % distname
append_line = append_line + " ks=%s " % data["kickstart"]
append_line = append_line + " %s\n" % data["kernel_options"]
length=len(append_line)
if length>254:
print _("WARNING - append line length is greater than 254 chars: (%s chars)") % length
cfg.write(append_line)
if systems is not None:
print _("- generating system list...")
cfg.write("\nMENU SEPARATOR\n")
#sort the systems
system_list = [system for system in self.systems]
def sort_name(a,b):
return cmp(a.name,b.name)
system_list.sort(sort_name)
for system in system_list:
use_this = False
if systems is not None:
which_systems = systems.split(",")
if system.name in which_systems:
use_this = True
if use_this:
profile = system.get_conceptual_parent()
dist = profile.get_conceptual_parent()
if dist.name.find("-xen") != -1:
continue
data = utils.blender(self.api, True, system)
distname = self.make_shorter(dist.name)
cfg.write("\n")
cfg.write("LABEL %s\n" % system.name)
cfg.write(" MENU LABEL %s\n" % system.name)
cfg.write(" kernel %s.krn\n" % distname)
if data["kickstart"].startswith("/"):
data["kickstart"] = "http://%s/cblr/svc/op/ks/system/%s" % (
data["server"],
system.name
)
append_line = " append initrd=%s.img" % distname
append_line = append_line + " ks=%s" % data["kickstart"]
append_line = append_line + " %s" % data["kernel_options"]
# add network info to avoid DHCP only if it is available
if data.has_key("bonding_master_eth0") and data["bonding_master_eth0"] != "":
primary_interface = data["bonding_master_eth0"]
else:
primary_interface = "eth0"
if data.has_key("ip_address_" + primary_interface) and data["ip_address_" + primary_interface] != "":
append_line = append_line + " ip=%s" % data["ip_address_" + primary_interface]
if data.has_key("subnet_" + primary_interface) and data["subnet_" + primary_interface] != "":
append_line = append_line + " netmask=%s" % data["subnet_" + primary_interface]
if data.has_key("gateway") and data["gateway"] != "":
append_line = append_line + " gateway=%s" % data["gateway"]
if data.has_key("name_servers") and data["name_servers"]:
append_line = append_line + " dns=%s\n" % ",".join(data["name_servers"])
length=len(append_line)
if length > 254:
print _("WARNING - append line length is greater than 254 chars: (%s chars)") % length
cfg.write(append_line)
print _("- done writing config")
cfg.write("\n")
cfg.write("MENU END\n")
cfg.close()
cmd = "mkisofs -o %s -r -b isolinux/isolinux.bin -c isolinux/boot.cat" % iso
cmd = cmd + " -no-emul-boot -boot-load-size 4 "
cmd = cmd + " -boot-info-table -V Cobbler\ Install -R -J -T %s" % tempdir
print _("- running: %s") % cmd
rc = sub_process.call(cmd, shell=True, close_fds=True)
if rc:
raise CX(_("mkisofs failed"))
print _("ISO build complete")
print _("You may wish to delete: %s") % tempdir
print _("The output file is: %s") % iso
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