#! /usr/bin/python -E # Authors: Martin Nagy # Based on ipa-server-install by Karl MacMillan # # Copyright (C) 2007 - 2009 Red Hat # see file 'COPYING' for use and warranty information # # 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 3 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, see . # import traceback from ipaserver.plugins.ldap2 import ldap2 from ipaserver.install import bindinstance, ntpinstance from ipaserver.install.installutils import * from ipapython import version from ipapython import ipautil, sysrestore from ipalib import api, errors, util from ipapython.config import IPAOptionParser import krbV import ldap def parse_options(): parser = IPAOptionParser(version=version.VERSION) parser.add_option("-p", "--ds-password", dest="dm_password", sensitive=True, help="admin password") parser.add_option("-d", "--debug", dest="debug", action="store_true", default=False, help="print debugging information") parser.add_option("--ip-address", dest="ip_address", help="Master Server IP Address") parser.add_option("--forwarder", dest="forwarders", action="append", help="Add a DNS forwarder") parser.add_option("--no-forwarders", dest="no_forwarders", action="store_true", default=False, help="Do not add any DNS forwarders, use root servers instead") parser.add_option("--no-reverse", dest="no_reverse", action="store_true", default=False, help="Do not create reverse DNS zone") parser.add_option("--zonemgr", dest="zonemgr", help="DNS zone manager e-mail address. Defaults to root") parser.add_option("-U", "--unattended", dest="unattended", action="store_true", default=False, help="unattended installation never prompts the user") options, args = parser.parse_args() safe_options = parser.get_safe_opts(options) if options.forwarders and options.no_forwarders: parser.error("You cannot specify a --forwarder option together with --no-forwarders") if options.unattended: if not options.forwarders and not options.no_forwarders: parser.error("You must specify at least one --forwarder option or --no-forwarders option") return safe_options, options def resolve_host(host_name): ip = None try: addrinfos = socket.getaddrinfo(host_name, None, socket.AF_UNSPEC, socket.SOCK_DGRAM) except: print "Unable to lookup the IP address of the provided host" return None for ai in addrinfos: ip = ai[4][0] if ip == "127.0.0.1" or ip == "::1": print "The hostname resolves to the localhost address (127.0.0.1/::1)" print "Please change your /etc/hosts file so that the hostname." print "resolves to the ip address of your network interface." print "" print "Please fix your /etc/hosts file and restart the setup program." print "" sys.exit("Aborting installation.") if addrinfos: ip = addrinfos[0][4][0] return ip def main(): safe_options, options = parse_options() if os.getegid() != 0: sys.exit("Must be root to setup server") standard_logging_setup("/var/log/ipaserver-install.log", options.debug, filemode='a') print "\nThe log file for this installation can be found in /var/log/ipaserver-install.log" logging.debug('%s was invoked with options: %s' % (sys.argv[0], safe_options)) logging.debug("missing options might be asked for interactively later\n") global fstore fstore = sysrestore.FileStore('/var/lib/ipa/sysrestore') print "==============================================================================" print "This program will setup DNS for the FreeIPA Server." print "" print "This includes:" print " * Configure DNS (bind)" print "" print "To accept the default shown in brackets, press the Enter key." print "" # Check bind packages are installed if not bindinstance.check_inst(options.unattended): sys.exit("Aborting installation.") # Initialize the ipalib api cfg = dict( in_server=True, debug=options.debug, ) api.bootstrap(**cfg) api.finalize() if bindinstance.named_conf_exists(): sys.exit("\nDNS is already configured in this IPA server.") # Check we have a public IP that is associated with the hostname if options.ip_address: ip_address = options.ip_address else: ip_address = resolve_host(api.env.host) if not ip_address or not verify_ip_address(ip_address): if options.unattended: sys.exit("Unable to resolve IP address for host name") else: ip_address = read_ip_address(api.env.host, fstore) logging.debug("will use ip_address: %s\n", ip_address) if options.no_forwarders: dns_forwarders = () elif options.forwarders: dns_forwarders = options.forwarders else: dns_forwarders = read_dns_forwarders() logging.debug("will use dns_forwarders: %s\n", str(dns_forwarders)) conf_ntp = ntpinstance.NTPInstance(fstore).is_enabled() if not options.unattended: print "" print "The following operations may take some minutes to complete." print "Please wait until the prompt is returned." print "" # Create a BIND instance bind = bindinstance.BindInstance(fstore, options.dm_password) valid_password = False while not valid_password: # try the connection try: bind.ldap_connect() bind.ldap_disconnect() valid_password = True except ldap.LOCAL_ERROR, e: if not bind.dm_password: if options.unattended: sys.exit("\nIn unattended mode you need to provide at least the -p option") else: bind.dm_password = read_password("Directory Manager", confirm=False, validate=False) except ldap.INVALID_CREDENTIALS, e: if options.unattended: sys.exit("\nPassword is not valid!") bind.dm_password = read_password("Directory Manager", confirm=False, validate=False) create_reverse = True if options.unattended: create_reverse = not options.no_reverse elif not options.no_reverse: create_reverse = bindinstance.create_reverse() bind.setup(api.env.host, ip_address, api.env.realm, api.env.domain, dns_forwarders, conf_ntp, create_reverse, zonemgr=options.zonemgr) if bind.dm_password: api.Backend.ldap2.connect(bind_dn="cn=Directory Manager", bind_pw=bind.dm_password) else: # See if our LDAP server is up and we can talk to it over GSSAPI ccache = krbV.default_context().default_ccache().name api.Backend.ldap2.connect(ccache) bind.create_instance() print "==============================================================================" print "Setup complete" print "" print "\tYou must make sure these network ports are open:" print "\t\tTCP Ports:" print "\t\t * 53: bind" print "\t\tUDP Ports:" print "\t\t * 53: bind" return 0 try: sys.exit(main()) except SystemExit, e: sys.exit(e) except KeyboardInterrupt: print "Installation cancelled." except RuntimeError, e: print str(e) except Exception, e: message = "Unexpected error - see ipaserver-install.log for details:\n %s" % str(e) print message message = str(e) for str in traceback.format_tb(sys.exc_info()[2]): message = message + "\n" + str logging.debug(message) sys.exit(1)