diff options
Diffstat (limited to 'ipa-client/ipa-install/ipa-client-install')
| -rwxr-xr-x | ipa-client/ipa-install/ipa-client-install | 110 |
1 files changed, 90 insertions, 20 deletions
diff --git a/ipa-client/ipa-install/ipa-client-install b/ipa-client/ipa-install/ipa-client-install index e1487fae0..2080e7858 100755 --- a/ipa-client/ipa-install/ipa-client-install +++ b/ipa-client/ipa-install/ipa-client-install @@ -108,6 +108,9 @@ def parse_options(): 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") @@ -177,22 +180,33 @@ def uninstall(options, env, quiet=False): print "Refer to ipa-server-install for uninstallation." return CLIENT_NOT_CONFIGURED - sssdconfig = SSSDConfig.SSSDConfig() - sssdconfig.import_config() - domains = sssdconfig.list_active_domains() - hostname = None - for name in domains: - domain = sssdconfig.get_domain(name) - try: - provider = domain.get_option('id_provider') - except SSSDConfig.NoOptionError: - continue - if provider == "ipa": + was_sssd_configured = False + try: + sssdconfig = SSSDConfig.SSSDConfig() + sssdconfig.import_config() + domains = sssdconfig.list_active_domains() + if len(domains) > 1: + # There was more than IPA domain configured + was_sssd_configured = True + for name in domains: + domain = sssdconfig.get_domain(name) try: - hostname = domain.get_option('ipa_hostname') + provider = domain.get_option('id_provider') except SSSDConfig.NoOptionError: continue + if provider == "ipa": + try: + hostname = domain.get_option('ipa_hostname') + except SSSDConfig.NoOptionError: + continue + except Exception, e: + # We were unable to read existing SSSD config. This might mean few things: + # - sssd wasn't installed + # - sssd was removed after install and before uninstall + # - there are no active domains + # in both cases we cannot continue with SSSD + pass if hostname is None: hostname = socket.getfqdn() @@ -266,14 +280,31 @@ def uninstall(options, env, quiet=False): logging.debug("Failed to remove Kerberos service principals: %s" % str(e)) emit_quiet(quiet, "Disabling client Kerberos and LDAP configurations") + was_sssd_installed = False + if fstore.has_files(): + was_sssd_installed = fstore.has_file("/etc/sssd/sssd.conf") try: auth_config = ipaservices.authconfig() - auth_config.disable("ldap").\ - disable("krb5").\ - disable("sssd").\ - disable("sssdauth").\ - disable("mkhomedir").\ - add_option("update") + if statestore.has_state('authconfig'): + # disable only those configurations that we enabled during install + for conf in ('ldap', 'krb5', 'sssd', 'sssdauth', 'mkhomedir'): + cnf = statestore.restore_state('authconfig', conf) + if cnf: + auth_config.disable(conf) + else: + # There was no authconfig status store + # It means the code was upgraded after original install + # Fall back to old logic + auth_config.disable("ldap").\ + disable("krb5") + if not(was_sssd_installed and was_sssd_configured): + # assume there was sssd.conf before install and there were more than one domain in it + # In such case restoring sssd.conf will require us to keep SSSD running + auth_config.disable("sssd").\ + disable("sssdauth") + auth_config.disable("mkhomedir") + + auth_config.add_option("update") auth_config.execute() except Exception, e: emit_quiet(quiet, "Failed to remove krb5/LDAP configuration. " +str(e)) @@ -345,6 +376,13 @@ def uninstall(options, env, quiet=False): if restored: ipaservices.knownservices.ntpd.restart() + if was_sssd_installed and was_sssd_configured: + # SSSD was installed before our installation, config now is restored, restart it + emit_quiet(quiet, "The original configuration of SSSD included other domains than IPA-based one.") + emit_quiet(quiet, "Original configuration file is restored, restarting SSSD service.") + sssd = ipaservices.service('sssd') + sssd.restart() + if not options.unattended: emit_quiet(quiet, "The original nsswitch.conf configuration has been restored.") emit_quiet(quiet, "You may need to restart services or reboot the machine.") @@ -612,8 +650,35 @@ def configure_certmonger(fstore, subject_base, cli_realm, hostname, options): print "%s request for host certificate failed" % (cmonger.service_name) def configure_sssd_conf(fstore, cli_realm, cli_domain, cli_server, options): - sssdconfig = SSSDConfig.SSSDConfig() - sssdconfig.new_config() + try: + sssdconfig = SSSDConfig.SSSDConfig() + sssdconfig.import_config() + except Exception, e: + if os.path.exists("/etc/sssd/sssd.conf") and options.preserve_sssd: + # SSSD config is in place but we are unable to read it + # In addition, we are instructed to preserve it + # This all means we can't use it and have to bail out + print "SSSD config exists but cannot be parsed: %s" % (str(e)) + print "Correct errors in /etc/sssd/sssd.conf and re-run installation" + logging.error("Failed to parse SSSD configuration and was instructed to preserve existing SSSD config: %s" % (str(e))) + return 1 + + # SSSD configuration does not exist or we are not asked to preserve it, create new one + # We do make new SSSDConfig instance because IPAChangeConf-derived classes have no + # means to reset their state and ParseError exception could come due to parsing + # error from older version which cannot be upgraded anymore, leaving sssdconfig + # instance practically unusable + # Note that we already backed up sssd.conf before going into this routine + if type(e) is IOError: + print "New SSSD config will be created." + else: + # It was not IOError so it must have been parsing error + print "Unable to parse existing SSSD config. As option --preserve-sssd was not specified, new config will override the old one." + print "The old /etc/sssd/sssd.conf is backed up and will be restored during uninstall." + logging.error("Unable to parse existing SSSD config and --preserve-sssd was not specified: %s" % (str(e))) + logging.info("New SSSD config will be created") + sssdconfig = SSSDConfig.SSSDConfig() + sssdconfig.new_config() domain = sssdconfig.new_domain(cli_domain) domain.add_provider('ipa', 'id') @@ -1081,16 +1146,20 @@ def install(options, env, fstore, statestore): # Modify nsswitch/pam stack auth_config = ipaservices.authconfig() if options.sssd: + statestore.backup_state('authconfig', 'sssd', True) + statestore.backup_state('authconfig', 'sssdauth', True) auth_config.enable("sssd").\ enable("sssdauth") message = "SSSD enabled" conf = 'SSSD' else: + statestore.backup_state('authconfig', 'ldap', True) auth_config.enable("ldap").\ enable("forcelegacy") message = "LDAP enabled" if options.mkhomedir: + statestore.backup_state('authconfig', 'mkhomedir', True) auth_config.enable("mkhomedir") auth_config.add_option("update") @@ -1100,6 +1169,7 @@ def install(options, env, fstore, statestore): if not options.sssd: #Modify pam to add pam_krb5 only when sssd is not in use auth_config.reset() + statestore.backup_state('authconfig', 'krb5', True) auth_config.enable("krb5").\ add_option("update").\ add_option("nostart") |