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1f65c07524
freeipa/client/ipa-client-install
Martin Basti 1f65c07524 client: Remove useless except in ipa-client-install 
SystemExit is raised by sys.exit() so catching and reraising it again is
wasting of resources

https://fedorahosted.org/freeipa/ticket/6392

Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
2016-11-11 12:13:56 +01:00

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Python
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#! /usr/bin/python2 -E
# Authors: Simo Sorce <ssorce@redhat.com>
# Karl MacMillan <kmacmillan@mentalrootkit.com>
#
# Copyright (C) 2007 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 <http://www.gnu.org/licenses/>.
#
from __future__ import print_function
import sys
import os
from optparse import SUPPRESS_HELP, OptionGroup, OptionValueError
from ipaclient.install import client
from ipapython.ipa_log_manager import standard_logging_setup, root_logger
from ipaplatform.paths import paths
from ipapython import version
from ipapython.config import IPAOptionParser
from ipalib import x509
from ipalib.util import normalize_hostname, validate_domain_name
def parse_options():
def validate_ca_cert_file_option(option, opt, value, parser):
if not os.path.exists(value):
raise OptionValueError("%s option '%s' does not exist" % (opt, value))
if not os.path.isfile(value):
raise OptionValueError("%s option '%s' is not a file" % (opt, value))
if not os.path.isabs(value):
raise OptionValueError("%s option '%s' is not an absolute file path" % (opt, value))
try:
x509.load_certificate_from_file(value)
except Exception:
raise OptionValueError("%s option '%s' is not a valid certificate file" % (opt, value))
parser.values.ca_cert_file = value
def kinit_attempts_callback(option, opt, value, parser):
if value < 1:
raise OptionValueError(
"Option %s expects an integer greater than 0."
% opt)
parser.values.kinit_attempts = value
parser = IPAOptionParser(version=version.VERSION)
basic_group = OptionGroup(parser, "basic options")
basic_group.add_option("--domain", dest="domain", help="domain name")
basic_group.add_option("--server", dest="server", help="FQDN of IPA server", action="append")
basic_group.add_option("--realm", dest="realm_name", help="realm name")
basic_group.add_option("--fixed-primary", dest="primary", action="store_true",
default=False, help="Configure sssd to use fixed server as primary IPA server")
basic_group.add_option("-p", "--principal", dest="principal",
help="principal to use to join the IPA realm")
basic_group.add_option("-w", "--password", dest="password", sensitive=True,
help="password to join the IPA realm (assumes bulk "
"password unless principal is also set)")
basic_group.add_option("-k", "--keytab", dest="keytab",
help="path to backed up keytab from previous enrollment")
basic_group.add_option("-W", dest="prompt_password", action="store_true",
default=False,
help="Prompt for a password to join the IPA realm")
basic_group.add_option("--mkhomedir", dest="mkhomedir",
action="store_true", default=False,
help="create home directories for users on their first login")
basic_group.add_option("", "--hostname", dest="hostname",
help="The hostname of this machine (FQDN). If specified, the hostname will be set and "
"the system configuration will be updated to persist over reboot. "
"By default the result of getfqdn() call from "
"Python's socket module is used.")
basic_group.add_option("", "--force-join", dest="force_join",
action="store_true", default=False,
help="Force client enrollment even if already enrolled")
basic_group.add_option("--ntp-server", dest="ntp_servers", action="append",
help="ntp server to use. This option can be used "
"multiple times")
basic_group.add_option("-N", "--no-ntp", action="store_false",
help="do not configure ntp", default=True, dest="conf_ntp")
basic_group.add_option("", "--force-ntpd", dest="force_ntpd",
action="store_true", default=False,
help="Stop and disable any time&date synchronization services besides ntpd")
basic_group.add_option("--nisdomain", dest="nisdomain",
help="NIS domain name")
basic_group.add_option("--no-nisdomain", action="store_true", default=False,
help="do not configure NIS domain name",
dest="no_nisdomain")
basic_group.add_option("--ssh-trust-dns", dest="trust_sshfp", default=False, action="store_true",
help="configure OpenSSH client to trust DNS SSHFP records")
basic_group.add_option("--no-ssh", dest="conf_ssh", default=True, action="store_false",
help="do not configure OpenSSH client")
basic_group.add_option("--no-sshd", dest="conf_sshd", default=True, action="store_false",
help="do not configure OpenSSH server")
basic_group.add_option("--no-sudo", dest="conf_sudo", default=True,
action="store_false",
help="do not configure SSSD as data source for sudo")
basic_group.add_option("--no-dns-sshfp", dest="create_sshfp", default=True, action="store_false",
help="do not automatically create DNS SSHFP records")
basic_group.add_option("--noac", dest="no_ac", default=False, action="store_true",
help="do not modify the nsswitch.conf and PAM configuration")
basic_group.add_option("-f", "--force", dest="force", action="store_true",
default=False, help="force setting of LDAP/Kerberos conf")
basic_group.add_option('--kinit-attempts', dest='kinit_attempts',
action='callback', type='int', default=5,
callback=kinit_attempts_callback,
help=("number of attempts to obtain host TGT"
" (defaults to %default)."))
basic_group.add_option("-d", "--debug", dest="debug", action="store_true",
default=False, help="print debugging information")
basic_group.add_option("-U", "--unattended", dest="unattended",
action="store_true",
help="unattended (un)installation never prompts the user")
basic_group.add_option("--ca-cert-file", dest="ca_cert_file",
type="string", action="callback", callback=validate_ca_cert_file_option,
help="load the CA certificate from this file")
basic_group.add_option("--request-cert", dest="request_cert",
action="store_true", default=False,
help="request certificate for the machine")
# --on-master is used in ipa-server-install and ipa-replica-install
# only, it isn't meant to be used on clients.
basic_group.add_option("--on-master", dest="on_master", action="store_true",
help=SUPPRESS_HELP, default=False)
basic_group.add_option("--automount-location", dest="location",
help="Automount location")
basic_group.add_option("--configure-firefox", dest="configure_firefox",
action="store_true", default=False,
help="configure Firefox to use IPA domain credentials")
basic_group.add_option("--firefox-dir", dest="firefox_dir", default=None,
help="specify directory where Firefox is installed (for example: '/usr/lib/firefox')")
basic_group.add_option("--ip-address", dest="ip_addresses", default=[],
action="append", help="Specify IP address that should be added to DNS."
" This option can be used multiple times")
basic_group.add_option("--all-ip-addresses", dest="all_ip_addresses",
default=False, action="store_true", help="All routable IP"
" addresses configured on any inteface will be added to DNS")
parser.add_option_group(basic_group)
sssd_group = OptionGroup(parser, "SSSD options")
sssd_group.add_option("--permit", dest="permit",
action="store_true", default=False,
help="disable access rules by default, permit all access.")
sssd_group.add_option("", "--enable-dns-updates", dest="dns_updates",
action="store_true", default=False,
help="Configures the machine to attempt dns updates when the ip address changes.")
sssd_group.add_option("--no-krb5-offline-passwords", dest="krb5_offline_passwords",
action="store_false", default=True,
help="Configure SSSD not to store user password when the server is offline")
sssd_group.add_option("-S", "--no-sssd", dest="sssd",
action="store_false", default=True,
help="Do not configure the client to use SSSD for authentication")
sssd_group.add_option("--preserve-sssd", dest="preserve_sssd",
action="store_true", default=False,
help="Preserve old SSSD configuration if possible")
parser.add_option_group(sssd_group)
uninstall_group = OptionGroup(parser, "uninstall options")
uninstall_group.add_option("", "--uninstall", dest="uninstall", action="store_true",
default=False, help="uninstall an existing installation. The uninstall can " \
"be run with --unattended option")
parser.add_option_group(uninstall_group)
options, _args = parser.parse_args()
safe_opts = parser.get_safe_opts(options)
if (options.server and not options.domain):
parser.error("--server cannot be used without providing --domain")
if options.domain:
try:
validate_domain_name(options.domain)
except ValueError as ex:
parser.error("invalid domain name: %s" % ex)
options.domain = normalize_hostname(options.domain)
if options.force_ntpd and not options.conf_ntp:
parser.error("--force-ntpd cannot be used together with --no-ntp")
if options.firefox_dir and not options.configure_firefox:
parser.error("--firefox-dir cannot be used without --configure-firefox option")
if options.no_nisdomain and options.nisdomain:
parser.error("--no-nisdomain cannot be used together with --nisdomain")
if options.ip_addresses:
if options.dns_updates:
parser.error("--ip-address cannot be used together with"
" --enable-dns-updates")
if options.all_ip_addresses:
parser.error("--ip-address cannot be used together with"
" --all-ip-addresses")
return safe_opts, options
def logging_setup(options):
log_file = paths.IPACLIENT_INSTALL_LOG
if options.uninstall:
log_file = paths.IPACLIENT_UNINSTALL_LOG
standard_logging_setup(
filename=log_file, verbose=True, debug=options.debug,
console_format='%(message)s')
def main():
safe_options, options = parse_options()
logging_setup(options)
root_logger.debug(
'%s was invoked with options: %s', sys.argv[0], safe_options)
root_logger.debug("missing options might be asked for interactively later")
root_logger.debug('IPA version %s' % version.VENDOR_VERSION)
if options.uninstall:
rval_check = client.uninstall_check(options)
if rval_check != client.SUCCESS:
return rval_check
return client.uninstall(options)
rval_check = client.install_check(options)
if rval_check != client.SUCCESS:
return rval_check
rval = client.install(options)
if rval == client.CLIENT_INSTALL_ERROR:
if options.force:
root_logger.warning(
"Installation failed. Force set so not rolling back changes.")
elif options.on_master:
root_logger.warning(
"Installation failed. As this is IPA server, changes will not "
"be rolled back."
)
else:
root_logger.error("Installation failed. Rolling back changes.")
options.unattended = True
client.uninstall(options)
return rval
try:
if __name__ == "__main__":
sys.exit(main())
except KeyboardInterrupt:
sys.exit(1)
except RuntimeError as e:
sys.exit(e)
finally:
try:
os.remove(client.CCACHE_FILE)
except Exception:
pass
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