Integrate ipa-join and ipa-rmkeytab into the client install/uninstall

This will fetch a keytab on installation and remove it upon uninstallation.
This commit is contained in:
Rob Crittenden 2009-11-19 14:14:42 -05:00 committed by Jason Gerard DeRose
parent 8a7c22939d
commit f14f5156d4

View File

@ -26,6 +26,8 @@ try:
import krbV
import socket
import logging
import tempfile
import getpass
from optparse import OptionParser
import ipaclient.ipadiscovery
import ipaclient.ipachangeconf
@ -58,6 +60,13 @@ def parse_options():
parser.add_option("--ntp-server", dest="ntp_server", help="ntp server to use")
parser.add_option("-N", "--no-ntp", action="store_false",
help="do not configure ntp", default=True, dest="conf_ntp")
parser.add_option("-w", "--password", dest="password",
help="password to join the IPA realm"),
parser.add_option("-W", dest="prompt_password", action="store_true",
default=False,
help="Prompt for a password to join the IPA realm"),
parser.add_option("-p", "--principal", dest="principal",
help="principal to use to join the IPA realm"),
parser.add_option("--on-master", dest="on_master", action="store_true",
help="use this option when run on a master", default=False)
parser.add_option("", "--uninstall", dest="uninstall", action="store_true",
@ -108,11 +117,18 @@ def uninstall(options):
print "Failed to remove krb5/ldap configuration. " +str(e)
sys.exit(1)
print "Removing Kerberos service principals from /etc/krb5.keytab"
try:
run(["/sbin/service", "nscd", "restart"])
except:
print "Failed to restart start the NSCD daemon"
try:
ctx = krbV.default_context()
run(["/usr/sbin/ipa-rmkeytab", "-k", "/etc/krb5.keytab", "-r", ctx.default_realm])
except:
print "Failed to clean up /etc/krb5.keytab"
if not options.unattended:
print "The original nsswitch.conf configuration has been restored."
print "You may need to restart services or reboot the machine."
@ -124,6 +140,137 @@ def uninstall(options):
print "Reboot command failed to exceute. " + str(e)
sys.exit(1)
def configure_ipa_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server):
ipaconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
ipaconf.setOptionAssignment(" = ")
ipaconf.setSectionNameDelimiters(("[","]"))
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
{'name':'empty', 'type':'empty'}]
#[global]
defopts = [{'name':'basedn', 'type':'option', 'value':cli_basedn},
{'name':'realm', 'type':'option', 'value':cli_realm},
{'name':'domain', 'type':'option', 'value':cli_domain},
{'name':'server', 'type':'option', 'value':cli_server},
{'name':'xmlrpc_uri', 'type':'option', 'value':'https://%s/ipa/xml' % cli_server}]
opts.append({'name':'global', 'type':'section', 'value':defopts})
opts.append({'name':'empty', 'type':'empty'})
fstore.backup_file("/etc/ipa/default.conf")
ipaconf.newConf("/etc/ipa/default.conf", opts)
return 0
def configure_ldap_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options):
ldapconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
ldapconf.setOptionAssignment(" ")
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
{'name':'empty', 'type':'empty'},
{'name':'ldap_version', 'type':'option', 'value':'3'},
{'name':'base', 'type':'option', 'value':cli_basedn},
{'name':'empty', 'type':'empty'},
{'name':'nss_base_passwd', 'type':'option', 'value':'cn=users,cn=accounts,'+cli_basedn+'?sub'},
{'name':'nss_base_group', 'type':'option', 'value':'cn=groups,cn=accounts,'+cli_basedn+'?sub'},
{'name':'nss_schema', 'type':'option', 'value':'rfc2307bis'},
{'name':'nss_map_attribute', 'type':'option', 'value':'uniqueMember member'},
{'name':'nss_initgroups_ignoreusers', 'type':'option', 'value':'root,dirsrv'},
{'name':'empty', 'type':'empty'},
{'name':'nss_reconnect_maxsleeptime', 'type':'option', 'value':'8'},
{'name':'nss_reconnect_sleeptime', 'type':'option', 'value':'1'},
{'name':'bind_timelimit', 'type':'option', 'value':'5'},
{'name':'timelimit', 'type':'option', 'value':'15'},
{'name':'empty', 'type':'empty'}]
if not dnsok or options.force or options.on_master:
if options.on_master:
opts.append({'name':'uri', 'type':'option', 'value':'ldap://localhost'})
else:
opts.append({'name':'uri', 'type':'option', 'value':'ldap://'+cli_server})
else:
opts.append({'name':'nss_srv_domain', 'type':'option', 'value':cli_domain})
opts.append({'name':'empty', 'type':'empty'})
try:
fstore.backup_file("/etc/ldap.conf")
ldapconf.newConf("/etc/ldap.conf", opts)
except Exception, e:
print "Creation of /etc/ldap.conf: " + str(e)
return 1
return 0
def hardcode_ldap_server(cli_server):
"""
DNS Discovery didn't return a valid IPA server, hardcode a value into
the file instead.
"""
ldapconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
ldapconf.setOptionAssignment(" ")
opts = [{'name':'uri', 'type':'option', 'action':'set', 'value':'ldap://'+cli_server},
{'name':'empty', 'type':'empty'}]
# Errors raised by this should be caught by the caller
ldapconf.changeConf("/etc/ldap.conf", opts)
return
def configure_krb5_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options, filename):
krbconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
krbconf.setOptionAssignment(" = ")
krbconf.setSectionNameDelimiters(("[","]"))
krbconf.setSubSectionDelimiters(("{","}"))
krbconf.setIndent((""," "," "))
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
{'name':'empty', 'type':'empty'}]
#[libdefaults]
libopts = [{'name':'default_realm', 'type':'option', 'value':cli_realm}]
if not dnsok or options.force:
libopts.append({'name':'dns_lookup_realm', 'type':'option', 'value':'false'})
libopts.append({'name':'dns_lookup_kdc', 'type':'option', 'value':'false'})
else:
libopts.append({'name':'dns_lookup_realm', 'type':'option', 'value':'true'})
libopts.append({'name':'dns_lookup_kdc', 'type':'option', 'value':'true'})
libopts.append({'name':'ticket_lifetime', 'type':'option', 'value':'24h'})
libopts.append({'name':'forwardable', 'type':'option', 'value':'yes'})
opts.append({'name':'libdefaults', 'type':'section', 'value':libopts})
opts.append({'name':'empty', 'type':'empty'})
#the following are necessary only if DNS discovery does not work
if not dnsok or options.force:
#[realms]
kropts =[{'name':'kdc', 'type':'option', 'value':cli_server+':88'},
{'name':'admin_server', 'type':'option', 'value':cli_server+':749'},
{'name':'default_domain', 'type':'option', 'value':cli_domain}]
ropts = [{'name':cli_realm, 'type':'subsection', 'value':kropts}]
opts.append({'name':'realms', 'type':'section', 'value':ropts})
opts.append({'name':'empty', 'type':'empty'})
#[domain_realm]
dropts = [{'name':'.'+cli_domain, 'type':'option', 'value':cli_realm},
{'name':cli_domain, 'type':'option', 'value':cli_realm}]
opts.append({'name':'domain_realm', 'type':'section', 'value':dropts})
opts.append({'name':'empty', 'type':'empty'})
#[appdefaults]
pamopts = [{'name':'debug', 'type':'option', 'value':'false'},
{'name':'ticket_lifetime', 'type':'option', 'value':'36000'},
{'name':'renew_lifetime', 'type':'option', 'value':'36000'},
{'name':'forwardable', 'type':'option', 'value':'true'},
{'name':'krb4_convert', 'type':'option', 'value':'false'}]
appopts = [{'name':'pam', 'type':'subsection', 'value':pamopts}]
opts.append({'name':'appdefaults', 'type':'section', 'value':appopts})
krbconf.newConf(filename, opts);
return 0
def main():
options = parse_options()
logging_setup(options)
@ -140,6 +287,10 @@ def main():
cli_realm = None
cli_basedn = None
if options.unattended and (options.password is None and options.principal is None and options.prompt_password is False) and not options.on_master:
print "One of password and principal are required."
return 1
# Create the discovery instance
ds = ipaclient.ipadiscovery.IPADiscovery()
@ -212,124 +363,74 @@ def main():
if not options.unattended and not user_input("Continue to configure the system with these values?", False):
return 1
if not options.unattended:
if options.principal is None and options.password is None and options.prompt_password is False:
options.principal = user_input("Principal", allow_empty=False)
if not options.on_master:
# First test out the kerberos configuration
try:
(krb_fd, krb_name) = tempfile.mkstemp()
os.close(krb_fd)
if configure_krb5_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options, krb_name):
print "Test kerberos configuration failed"
return 1
os.environ['KRB5_CONFIG'] = krb_name
join_args = ["/usr/sbin/ipa-join"]
if options.principal is not None:
principal = options.principal
if principal.find('@') == -1:
principal = '%s@%s' % (principal, cli_realm)
print "Password for %s: " % principal,
sys.stdout.flush()
(stderr, stdout, returncode) = run(["/usr/kerberos/bin/kinit", principal], raiseonerr=False)
print ""
if returncode != 0:
print stdout
return 1
elif options.password:
join_args.append("-w")
join_args.append(options.password)
elif options.prompt_password:
password = getpass.getpass("Password: ")
join_args.append("-w")
join_args.append(password)
# Now join the domain
(stdout, stderr, returncode) = run(join_args, raiseonerr=False)
if returncode != 0:
print "Joining realm failed: %s" % stderr,
if not options.force:
return 1
print " Use ipa-getkeytab to obtain a host principal for this server."
finally:
if options.principal is not None:
(stderr, stdout, returncode) = run(["/usr/kerberos/bin/kdestroy"], raiseonerr=False)
del os.environ['KRB5_CONFIG']
os.remove(krb_name)
os.remove(krb_name + ".ipabkp")
# Configure ipa.conf
if not options.on_master:
ipaconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
ipaconf.setOptionAssignment(" = ")
ipaconf.setSectionNameDelimiters(("[","]"))
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
{'name':'empty', 'type':'empty'}]
#[global]
defopts = [{'name':'basedn', 'type':'option', 'value':cli_basedn},
{'name':'realm', 'type':'option', 'value':cli_realm},
{'name':'domain', 'type':'option', 'value':cli_domain},
{'name':'server', 'type':'option', 'value':cli_server},
{'name':'xmlrpc_uri', 'type':'option', 'value':'https://%s/ipa/xml' % cli_server}]
opts.append({'name':'global', 'type':'section', 'value':defopts})
opts.append({'name':'empty', 'type':'empty'})
fstore.backup_file("/etc/ipa/default.conf")
ipaconf.newConf("/etc/ipa/default.conf", opts)
configure_ipa_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server)
print "Created /etc/ipa/default.conf"
# Configure ldap.conf
ldapconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
ldapconf.setOptionAssignment(" ")
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
{'name':'empty', 'type':'empty'},
{'name':'ldap_version', 'type':'option', 'value':'3'},
{'name':'base', 'type':'option', 'value':cli_basedn},
{'name':'empty', 'type':'empty'},
{'name':'nss_base_passwd', 'type':'option', 'value':'cn=users,cn=accounts,'+cli_basedn+'?sub'},
{'name':'nss_base_group', 'type':'option', 'value':'cn=groups,cn=accounts,'+cli_basedn+'?sub'},
{'name':'nss_schema', 'type':'option', 'value':'rfc2307bis'},
{'name':'nss_map_attribute', 'type':'option', 'value':'uniqueMember member'},
{'name':'nss_initgroups_ignoreusers', 'type':'option', 'value':'root,dirsrv'},
{'name':'empty', 'type':'empty'},
{'name':'nss_reconnect_maxsleeptime', 'type':'option', 'value':'8'},
{'name':'nss_reconnect_sleeptime', 'type':'option', 'value':'1'},
{'name':'bind_timelimit', 'type':'option', 'value':'5'},
{'name':'timelimit', 'type':'option', 'value':'15'},
{'name':'empty', 'type':'empty'}]
if not dnsok or options.force or options.on_master:
if options.on_master:
opts.append({'name':'uri', 'type':'option', 'value':'ldap://localhost'})
else:
opts.append({'name':'uri', 'type':'option', 'value':'ldap://'+cli_server})
else:
opts.append({'name':'nss_srv_domain', 'type':'option', 'value':cli_domain})
opts.append({'name':'empty', 'type':'empty'})
try:
fstore.backup_file("/etc/ldap.conf")
ldapconf.newConf("/etc/ldap.conf", opts)
print "Configured /etc/ldap.conf"
except Exception, e:
print "Creation of /etc/ldap.conf: " + str(e)
if configure_ldap_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options):
return 1
print "Configured /etc/ldap.conf"
#If on master assume kerberos is already configured properly.
# If on master assume kerberos is already configured properly.
if not options.on_master:
#Configure krb5.conf
krbconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
krbconf.setOptionAssignment(" = ")
krbconf.setSectionNameDelimiters(("[","]"))
krbconf.setSubSectionDelimiters(("{","}"))
krbconf.setIndent((""," "," "))
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
{'name':'empty', 'type':'empty'}]
#[libdefaults]
libopts = [{'name':'default_realm', 'type':'option', 'value':cli_realm}]
if not dnsok or options.force:
libopts.append({'name':'dns_lookup_realm', 'type':'option', 'value':'false'})
libopts.append({'name':'dns_lookup_kdc', 'type':'option', 'value':'false'})
else:
libopts.append({'name':'dns_lookup_realm', 'type':'option', 'value':'true'})
libopts.append({'name':'dns_lookup_kdc', 'type':'option', 'value':'true'})
libopts.append({'name':'ticket_lifetime', 'type':'option', 'value':'24h'})
libopts.append({'name':'forwardable', 'type':'option', 'value':'yes'})
opts.append({'name':'libdefaults', 'type':'section', 'value':libopts})
opts.append({'name':'empty', 'type':'empty'})
#the following are necessary only if DNS discovery does not work
if not dnsok or options.force:
#[realms]
kropts =[{'name':'kdc', 'type':'option', 'value':cli_server+':88'},
{'name':'admin_server', 'type':'option', 'value':cli_server+':749'},
{'name':'default_domain', 'type':'option', 'value':cli_domain}]
ropts = [{'name':cli_realm, 'type':'subsection', 'value':kropts}]
opts.append({'name':'realms', 'type':'section', 'value':ropts})
opts.append({'name':'empty', 'type':'empty'})
#[domain_realm]
dropts = [{'name':'.'+cli_domain, 'type':'option', 'value':cli_realm},
{'name':cli_domain, 'type':'option', 'value':cli_realm}]
opts.append({'name':'domain_realm', 'type':'section', 'value':dropts})
opts.append({'name':'empty', 'type':'empty'})
#[appdefaults]
pamopts = [{'name':'debug', 'type':'option', 'value':'false'},
{'name':'ticket_lifetime', 'type':'option', 'value':'36000'},
{'name':'renew_lifetime', 'type':'option', 'value':'36000'},
{'name':'forwardable', 'type':'option', 'value':'true'},
{'name':'krb4_convert', 'type':'option', 'value':'false'}]
appopts = [{'name':'pam', 'type':'subsection', 'value':pamopts}]
opts.append({'name':'appdefaults', 'type':'section', 'value':appopts})
# Configure krb5.conf
fstore.backup_file("/etc/krb5.conf")
krbconf.newConf("/etc/krb5.conf", opts);
if configure_krb5_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options, "/etc/krb5.conf"):
return 1
print "Configured /etc/krb5.conf for IPA realm " + cli_realm
#Modify nsswitch to add nss_ldap
# Modify nsswitch to add nss_ldap
run(["/usr/sbin/authconfig", "--enableldap", "--update"])
print "LDAP enabled"
@ -341,10 +442,8 @@ def main():
print "nss_ldap is not able to use DNS discovery!"
print "Changing configuration to use hardcoded server name: " +cli_server
opts = [{'name':'uri', 'type':'option', 'action':'set', 'value':'ldap://'+cli_server},
{'name':'empty', 'type':'empty'}]
try:
ldapconf.changeConf("/etc/ldap.conf", opts)
hardcode_ldap_server(cli_server)
except Exception, e:
print "Adding hardcoded server name to /etc/ldap.conf failed: " + str(e)
return 1