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"""
Validates whether the system is reasonably well configured for
serving up content. This is the code behind 'cobbler check'.
Copyright 2006, 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 os
import re
import cobbler_msg
import action_sync
class BootCheck:
def __init__(self,config):
"""
Constructor
"""
self.config = config
self.settings = config.settings()
def run(self):
"""
Returns None if there are no errors, otherwise returns a list
of things to correct prior to running application 'for real'.
(The CLI usage is "cobbler check" before "cobbler sync")
"""
status = []
self.check_name(status)
if self.settings.manage_dhcp:
mode = self.settings.manage_dhcp_mode.lower()
if mode == "isc":
self.check_dhcpd_bin(status)
self.check_dhcpd_conf(status)
elif mode == "dnsmasq":
self.check_dnsmasq_bin(status)
else:
status.append(cobbler_msg.lookup("dhcp_choice"))
self.check_bootloaders(status)
self.check_tftpd_bin(status)
self.check_tftpd_dir(status)
self.check_tftpd_conf(status)
self.check_httpd(status)
return status
def check_name(self,status):
"""
If the server name in the config file is still set to localhost
kickstarts run from koan will not have proper kernel line
parameters.
"""
if self.settings.server == "127.0.0.1":
status.append(cobbler_msg.lookup("bad_server"))
if self.settings.next_server == "127.0.0.1":
status.append(cobbler_msg.lookup("bad_next"))
def check_httpd(self,status):
"""
Check if Apache is installed.
"""
if not os.path.exists(self.settings.httpd_bin):
status.append(cobbler_msg.lookup("no_httpd"))
def check_dhcpd_bin(self,status):
"""
Check if dhcpd is installed
"""
if not os.path.exists(self.settings.dhcpd_bin):
status.append(cobbler_msg.lookup("no_dhcpd"))
def check_dnsmasq_bin(self,status):
"""
Check if dnsmasq is installed
"""
if not os.path.exists(self.settings.dnsmasq_bin):
status.append(cobbler_msg.lookup("no_dnsmasq"))
def check_bootloaders(self,status):
"""
Check if network bootloaders are installed
"""
for loader in self.settings.bootloaders.keys():
filename = self.settings.bootloaders[loader]
if not os.path.exists(filename):
status.append(cobbler_msg.lookup("no_bootloader"))
return
def check_tftpd_bin(self,status):
"""
Check if tftpd is installed
"""
if not os.path.exists(self.settings.tftpd_bin):
status.append(cobbler_msg.lookup("no_tftpd"))
def check_tftpd_dir(self,status):
"""
Check if cobbler.conf's tftpboot directory exists
"""
if not os.path.exists(self.settings.tftpboot):
status.append(cobbler_msg.lookup("no_dir") % self.settings.tftpboot)
def check_tftpd_conf(self,status):
"""
Check that configured tftpd boot directory matches with actual
Check that tftpd is enabled to autostart
"""
if os.path.exists(self.settings.tftpd_conf):
f = open(self.settings.tftpd_conf)
re_disable = re.compile(r'disable.*=.*yes')
found_bootdir = False
for line in f.readlines():
if re_disable.search(line):
status.append(cobbler_msg.lookup("chg_attrib") % ('disable','no',self.settings.tftpd_conf))
if line.find("-s %s" % self.settings.tftpboot) != -1:
found_bootdir = True
if not found_bootdir:
status.append(cobbler_msg.lookup("chg_attrib") % ('server_args',"-s %s" % self.settings.tftpboot, self.settings.tftpd_conf))
else:
status.append(cobbler_msg.lookup("no_exist") % self.settings.tftpd_conf)
def check_dhcpd_conf(self,status):
"""
NOTE: this code only applies if cobbler is *NOT* set to generate
a dhcp.conf file
Check that dhcpd *appears* to be configured for pxe booting.
We can't assure file correctness. Since a cobbler user might
have dhcp on another server, it's okay if it's not there and/or
not configured correctly according to automated scans.
"""
if not (self.settings.manage_dhcp == 0):
return
if os.path.exists(self.settings.dhcpd_conf):
match_next = False
match_file = False
f = open(self.settings.dhcpd_conf)
for line in f.readlines():
if line.find("next-server") != -1:
match_next = True
if line.find("filename") != -1:
match_file = True
if not match_next:
status.append(cobbler_msg.lookup("no_next_server") % (self.settings.dhcpd_conf))
if not match_file:
status.append(cobbler_msg.lookup("no_filename") % (self.settings.dhcpd_conf))
else:
status.append(cobbler_msg.lookup("no_exist") % self.settings.dhcpd_conf)
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