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994f71ac8a
freeipa/ipaserver/install/server/replicainstall.py
Christian Heimes 994f71ac8a Use single Custodia instance in installers 
Installers now pass a single CustodiaInstance object around, instead of
creating new instances on demand. In case of replica promotion with CA,
the instance gets all secrets from a master with CA present. Before, an
installer created multiple instances and may have requested CA key
material from a different machine than DM password hash.

In case of Domain Level 1 and replica promotion, the CustodiaInstance no
longer adds the keys to the local instance and waits for replication to
other replica. Instead the installer directly uploads the new public
keys to the remote 389-DS instance.

Without promotion, new Custodia public keys are still added to local
389-DS over LDAPI.

Fixes: https://pagure.io/freeipa/issue/7518
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Simo Sorce <ssorce@redhat.com>
2018-04-26 21:19:53 +02:00

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#
# Copyright (C) 2015 FreeIPA Contributors see COPYING for license
#
from __future__ import print_function, absolute_import
import contextlib
import logging
import dns.exception as dnsexception
import dns.name as dnsname
import dns.resolver as dnsresolver
import dns.reversename as dnsreversename
import os
import shutil
import socket
import sys
import tempfile
import textwrap
import traceback
from pkg_resources import parse_version
import six
from ipaclient.install.ipachangeconf import IPAChangeConf
import ipaclient.install.timeconf
from ipalib.install import certstore, sysrestore
from ipalib.install.kinit import kinit_keytab
from ipapython import ipaldap, ipautil
from ipapython.certdb import IPA_CA_TRUST_FLAGS, EXTERNAL_CA_TRUST_FLAGS
from ipapython.dn import DN
from ipapython.admintool import ScriptError
from ipaplatform import services
from ipaplatform.tasks import tasks
from ipaplatform.paths import paths
from ipalib import api, constants, create_api, errors, rpc, x509
from ipalib.config import Env
from ipalib.util import no_matching_interface_for_ip_address_warning
from ipaclient.install.client import configure_krb5_conf, purge_host_keytab
from ipaserver.install import (
adtrust, bindinstance, ca, certs, dns, dsinstance, httpinstance,
installutils, kra, krbinstance, otpdinstance, custodiainstance, service)
from ipaserver.install.installutils import (
create_replica_config, ReplicaConfig, load_pkcs12, is_ipa_configured)
from ipaserver.install.replication import (
ReplicationManager, replica_conn_check)
import SSSDConfig
from subprocess import CalledProcessError
if six.PY3:
unicode = str
NoneType = type(None)
logger = logging.getLogger(__name__)
def get_dirman_password():
return installutils.read_password("Directory Manager (existing master)",
confirm=False, validate=False)
def make_pkcs12_info(directory, cert_name, password_name):
"""Make pkcs12_info
:param directory: Base directory (config.dir)
:param cert_name: Cert filename (e.g. "dscert.p12")
:param password_name: Cert filename (e.g. "dirsrv_pin.txt")
:return: a (full cert path, password) tuple, or None if cert is not found
"""
cert_path = os.path.join(directory, cert_name)
if os.path.isfile(cert_path):
password_file = os.path.join(directory, password_name)
password = open(password_file).read().strip()
return cert_path, password
else:
return None
def install_replica_ds(config, options, ca_is_configured, remote_api,
ca_file, promote=False, pkcs12_info=None):
dsinstance.check_ports()
# if we have a pkcs12 file, create the cert db from
# that. Otherwise the ds setup will create the CA
# cert
if pkcs12_info is None:
pkcs12_info = make_pkcs12_info(config.dir, "dscert.p12",
"dirsrv_pin.txt")
if ca_is_configured:
ca_subject = ca.lookup_ca_subject(remote_api, config.subject_base)
else:
ca_subject = installutils.default_ca_subject_dn(config.subject_base)
ds = dsinstance.DsInstance(
config_ldif=options.dirsrv_config_file)
ds.create_replica(
realm_name=config.realm_name,
master_fqdn=config.master_host_name,
fqdn=config.host_name,
domain_name=config.domain_name,
dm_password=config.dirman_password,
subject_base=config.subject_base,
ca_subject=ca_subject,
pkcs12_info=pkcs12_info,
ca_is_configured=ca_is_configured,
ca_file=ca_file,
promote=promote, # we need promote because of replication setup
api=remote_api,
setup_pkinit=not options.no_pkinit,
)
return ds
def install_krb(config, setup_pkinit=False, pkcs12_info=None, promote=False):
krb = krbinstance.KrbInstance()
# pkinit files
if pkcs12_info is None:
pkcs12_info = make_pkcs12_info(config.dir, "pkinitcert.p12",
"pkinit_pin.txt")
krb.create_replica(config.realm_name,
config.master_host_name, config.host_name,
config.domain_name, config.dirman_password,
setup_pkinit, pkcs12_info,
subject_base=config.subject_base,
promote=promote)
return krb
def install_ca_cert(ldap, base_dn, realm, cafile, destfile=paths.IPA_CA_CRT):
try:
try:
certs = certstore.get_ca_certs(ldap, base_dn, realm, False)
except errors.NotFound:
try:
shutil.copy(cafile, destfile)
except shutil.Error:
# cafile == IPA_CA_CRT
pass
else:
certs = [c[0] for c in certs if c[2] is not False]
x509.write_certificate_list(certs, destfile)
except Exception as e:
raise ScriptError("error copying files: " + str(e))
return destfile
def install_http(config, auto_redirect, ca_is_configured, ca_file,
promote=False,
pkcs12_info=None):
# if we have a pkcs12 file, create the cert db from
# that. Otherwise the ds setup will create the CA
# cert
if pkcs12_info is None:
pkcs12_info = make_pkcs12_info(config.dir, "httpcert.p12",
"http_pin.txt")
http = httpinstance.HTTPInstance()
http.create_instance(
config.realm_name, config.host_name, config.domain_name,
config.dirman_password, pkcs12_info,
auto_redirect=auto_redirect, ca_file=ca_file,
ca_is_configured=ca_is_configured, promote=promote,
subject_base=config.subject_base, master_fqdn=config.master_host_name)
return http
def install_dns_records(config, options, remote_api):
if not bindinstance.dns_container_exists(
ipautil.realm_to_suffix(config.realm_name)):
return
try:
bind = bindinstance.BindInstance(api=remote_api)
for ip in config.ips:
reverse_zone = bindinstance.find_reverse_zone(ip, remote_api)
bind.add_master_dns_records(config.host_name,
str(ip),
config.realm_name,
config.domain_name,
reverse_zone)
except errors.NotFound as e:
logger.debug('Replica DNS records could not be added '
'on master: %s', str(e))
# we should not fail here no matter what
except Exception as e:
logger.info('Replica DNS records could not be added '
'on master: %s', str(e))
def create_ipa_conf(fstore, config, ca_enabled, master=None):
"""
Create /etc/ipa/default.conf master configuration
:param fstore: sysrestore file store used for backup and restore of
the server configuration
:param config: replica config
:param ca_enabled: True if the topology includes a CA
:param master: if set, the xmlrpc_uri parameter will use the provided
master instead of this host
"""
# Save client file on Domain Level 1
target_fname = paths.IPA_DEFAULT_CONF
fstore.backup_file(target_fname)
ipaconf = IPAChangeConf("IPA Replica Install")
ipaconf.setOptionAssignment(" = ")
ipaconf.setSectionNameDelimiters(("[", "]"))
if master:
xmlrpc_uri = 'https://{0}/ipa/xml'.format(
ipautil.format_netloc(master))
else:
xmlrpc_uri = 'https://{0}/ipa/xml'.format(
ipautil.format_netloc(config.host_name))
ldapi_uri = 'ldapi://%2fvar%2frun%2fslapd-{0}.socket\n'.format(
installutils.realm_to_serverid(config.realm_name))
# [global] section
gopts = [
ipaconf.setOption('basedn', str(config.basedn)),
ipaconf.setOption('host', config.host_name),
ipaconf.setOption('realm', config.realm_name),
ipaconf.setOption('domain', config.domain_name),
ipaconf.setOption('xmlrpc_uri', xmlrpc_uri),
ipaconf.setOption('ldap_uri', ldapi_uri),
ipaconf.setOption('mode', 'production')
]
if ca_enabled:
gopts.extend([
ipaconf.setOption('enable_ra', 'True'),
ipaconf.setOption('ra_plugin', 'dogtag'),
ipaconf.setOption('dogtag_version', '10')
])
if not config.setup_ca:
gopts.append(ipaconf.setOption('ca_host', config.ca_host_name))
else:
gopts.extend([
ipaconf.setOption('enable_ra', 'False'),
ipaconf.setOption('ra_plugin', 'None')
])
opts = [
ipaconf.setSection('global', gopts),
{'name': 'empty', 'type': 'empty'}
]
ipaconf.newConf(target_fname, opts)
# the new file must be readable for httpd
# Also, umask applies when creating a new file but we want 0o644 here
os.chmod(target_fname, 0o644)
def check_dirsrv():
(ds_unsecure, ds_secure) = dsinstance.check_ports()
if not ds_unsecure or not ds_secure:
msg = ("IPA requires ports 389 and 636 for the Directory Server.\n"
"These are currently in use:\n")
if not ds_unsecure:
msg += "\t389\n"
if not ds_secure:
msg += "\t636\n"
raise ScriptError(msg)
def check_dns_resolution(host_name, dns_servers):
"""Check forward and reverse resolution of host_name using dns_servers
"""
# Point the resolver at specified DNS server
server_ips = []
for dns_server in dns_servers:
try:
server_ips = list(
a[4][0] for a in socket.getaddrinfo(dns_server, None))
except socket.error:
pass
else:
break
if not server_ips:
logger.error(
'Could not resolve any DNS server hostname: %s', dns_servers)
return False
resolver = dnsresolver.Resolver()
resolver.nameservers = server_ips
logger.debug('Search DNS server %s (%s) for %s',
dns_server, server_ips, host_name)
# Get IP addresses of host_name
addresses = set()
for rtype in 'A', 'AAAA':
try:
result = resolver.query(host_name, rtype)
except dnsexception.DNSException:
rrset = []
else:
rrset = result.rrset
if rrset:
addresses.update(r.address for r in result.rrset)
if not addresses:
logger.error(
'Could not resolve hostname %s using DNS. '
'Clients may not function properly. '
'Please check your DNS setup. '
'(Note that this check queries IPA DNS directly and '
'ignores /etc/hosts.)',
host_name)
return False
no_errors = True
# Check each of the IP addresses
checked = set()
for address in addresses:
if address in checked:
continue
checked.add(address)
try:
logger.debug('Check reverse address %s (%s)', address, host_name)
revname = dnsreversename.from_address(address)
rrset = resolver.query(revname, 'PTR').rrset
except Exception as e:
logger.debug('Check failed: %s %s', type(e).__name__, e)
logger.error(
'Reverse DNS resolution of address %s (%s) failed. '
'Clients may not function properly. '
'Please check your DNS setup. '
'(Note that this check queries IPA DNS directly and '
'ignores /etc/hosts.)',
address, host_name)
no_errors = False
else:
host_name_obj = dnsname.from_text(host_name)
if rrset:
names = [r.target.to_text() for r in rrset]
else:
names = []
logger.debug(
'Address %s resolves to: %s. ', address, ', '.join(names))
if not rrset or not any(
r.target == host_name_obj for r in rrset):
logger.error(
'The IP address %s of host %s resolves to: %s. '
'Clients may not function properly. '
'Please check your DNS setup. '
'(Note that this check queries IPA DNS directly and '
'ignores /etc/hosts.)',
address, host_name, ', '.join(names))
no_errors = False
return no_errors
def configure_certmonger():
messagebus = services.knownservices.messagebus
try:
messagebus.start()
except Exception as e:
raise ScriptError("Messagebus service unavailable: %s" % str(e),
rval=3)
# Ensure that certmonger has been started at least once to generate the
# cas files in /var/lib/certmonger/cas.
cmonger = services.knownservices.certmonger
try:
cmonger.restart()
except Exception as e:
raise ScriptError("Certmonger service unavailable: %s" % str(e),
rval=3)
try:
cmonger.enable()
except Exception as e:
raise ScriptError("Failed to enable Certmonger: %s" % str(e),
rval=3)
def remove_replica_info_dir(installer):
# always try to remove decrypted replica file
try:
if installer._top_dir is not None:
shutil.rmtree(installer._top_dir)
except OSError:
pass
def common_cleanup(func):
def decorated(installer):
try:
try:
func(installer)
except BaseException:
remove_replica_info_dir(installer)
raise
except KeyboardInterrupt:
raise ScriptError()
except Exception:
print(
"Your system may be partly configured.\n"
"Run /usr/sbin/ipa-server-install --uninstall to clean up.\n")
raise
return decorated
def preserve_enrollment_state(func):
"""
Makes sure the machine is unenrollled if the decorated function
failed.
"""
def decorated(installer):
try:
func(installer)
except BaseException:
if installer._enrollment_performed:
uninstall_client()
raise
return decorated
def uninstall_client():
"""
Attempts to unenroll the IPA client using the ipa-client-install utility.
An unsuccessful attempt to uninstall is ignored (no exception raised).
"""
print("Removing client side components")
ipautil.run([paths.IPA_CLIENT_INSTALL, "--unattended", "--uninstall"],
raiseonerr=False, redirect_output=True)
print()
def promote_sssd(host_name):
sssdconfig = SSSDConfig.SSSDConfig()
sssdconfig.import_config()
domains = sssdconfig.list_active_domains()
for name in domains:
domain = sssdconfig.get_domain(name)
try:
hostname = domain.get_option('ipa_hostname')
if hostname == host_name:
break
except SSSDConfig.NoOptionError:
continue
else:
raise RuntimeError("Couldn't find IPA domain in sssd.conf")
domain.set_option('ipa_server', host_name)
domain.set_option('ipa_server_mode', True)
sssdconfig.save_domain(domain)
sssdconfig.write()
sssd = services.service('sssd', api)
try:
sssd.restart()
except CalledProcessError:
logger.warning("SSSD service restart was unsuccessful.")
def promote_openldap_conf(hostname, master):
"""
Reset the URI directive in openldap-client configuration file to point to
newly promoted replica. If this directive was set by third party, then
replace the added comment with the one pointing to replica
:param hostname: replica FQDN
:param master: FQDN of remote master
"""
ldap_conf = paths.OPENLDAP_LDAP_CONF
ldap_change_conf = IPAChangeConf("IPA replica installer")
ldap_change_conf.setOptionAssignment((" ", "\t"))
new_opts = []
with open(ldap_conf, 'r') as f:
old_opts = ldap_change_conf.parse(f)
for opt in old_opts:
if opt['type'] == 'comment' and master in opt['value']:
continue
elif (opt['type'] == 'option' and opt['name'] == 'URI' and
master in opt['value']):
continue
new_opts.append(opt)
change_opts = [
{'action': 'addifnotset',
'name': 'URI',
'type': 'option',
'value': 'ldaps://' + hostname}
]
try:
ldap_change_conf.newConf(ldap_conf, new_opts)
ldap_change_conf.changeConf(ldap_conf, change_opts)
except Exception as e:
logger.info("Failed to update %s: %s", ldap_conf, e)
@contextlib.contextmanager
def rpc_client(api):
"""
Context manager for JSON RPC client.
:param api: api to initiate the RPC client
"""
client = rpc.jsonclient(api)
client.finalize()
client.connect()
try:
yield client
finally:
client.disconnect()
def check_remote_fips_mode(client, local_fips_mode):
"""
Verify remote server's fips-mode is the same as this server's fips-mode
:param client: RPC client
:param local_fips_mode: boolean indicating whether FIPS mode is turned on
:raises: ScriptError: if the checks fails
"""
env = client.forward(u'env', u'fips_mode')['result']
remote_fips_mode = env.get('fips_mode', False)
if local_fips_mode != remote_fips_mode:
if local_fips_mode:
raise ScriptError(
"Cannot join FIPS-enabled replica into existing topology: "
"FIPS is not enabled on the master server.")
else:
raise ScriptError(
"Cannot join replica into existing FIPS-enabled topology: "
"FIPS has to be enabled locally first.")
def check_remote_version(client, local_version):
"""
Verify remote server's version is not higher than this server's version
:param client: RPC client
:param local_version: API version of local server
:raises: ScriptError: if the checks fails
"""
env = client.forward(u'env', u'version')['result']
remote_version = parse_version(env['version'])
if remote_version > local_version:
raise ScriptError(
"Cannot install replica of a server of higher version ({}) than"
"the local version ({})".format(remote_version, local_version))
def common_check(no_ntp):
tasks.check_ipv6_stack_enabled()
tasks.check_selinux_status()
if is_ipa_configured():
raise ScriptError(
"IPA server is already configured on this system.\n"
"If you want to reinstall the IPA server, please uninstall "
"it first using 'ipa-server-install --uninstall'.")
check_dirsrv()
if not no_ntp:
try:
ipaclient.install.timeconf.check_timedate_services()
except ipaclient.install.timeconf.NTPConflictingService as e:
print("WARNING: conflicting time&date synchronization service "
"'{svc}' will\nbe disabled in favor of chronyd\n"
.format(svc=e.conflicting_service))
except ipaclient.install.timeconf.NTPConfigurationError:
pass
def current_domain_level(api):
"""Return the current domain level.
"""
# Detect the current domain level
try:
return api.Command['domainlevel_get']()['result']
except errors.NotFound:
# If we're joining an older master, domain entry is not
# available
return constants.DOMAIN_LEVEL_0
def check_domain_level_is_supported(current):
"""Check that the given domain level is supported by this server version.
:raises: ScriptError if DL is out of supported range for this IPA version.
"""
under_lower_bound = current < constants.MIN_DOMAIN_LEVEL
above_upper_bound = current > constants.MAX_DOMAIN_LEVEL
if under_lower_bound or above_upper_bound:
message = ("This version of FreeIPA does not support "
"the Domain Level which is currently set for "
"this domain. The Domain Level needs to be "
"raised before installing a replica with "
"this version is allowed to be installed "
"within this domain.")
logger.error("%s", message)
raise ScriptError(message, rval=3)
def enroll_dl0_replica(installer, fstore, remote_api, debug=False):
"""
Do partial host enrollment in DL0:
* add host entry to remote master
* request host keytab from remote master
* configure client-like /etc/krb5.conf to enable GSSAPI auth further
down the replica installation
"""
logger.info("Enrolling host to IPA domain")
config = installer._config
hostname = config.host_name
try:
installer._enrollment_performed = True
host_result = remote_api.Command.host_add(
unicode(config.host_name))['result']
host_princ = unicode(host_result['krbcanonicalname'][0])
purge_host_keytab(config.realm_name)
getkeytab_args = [
paths.IPA_GETKEYTAB,
'-s', config.master_host_name,
'-p', host_princ,
'-D', unicode(ipaldap.DIRMAN_DN),
'-w', config.dirman_password,
'-k', paths.KRB5_KEYTAB,
'--cacert', os.path.join(config.dir, 'ca.crt')
]
ipautil.run(getkeytab_args, nolog=(config.dirman_password,))
_hostname, _sep, host_domain = hostname.partition('.')
fstore.backup_file(paths.KRB5_CONF)
configure_krb5_conf(
config.realm_name,
config.domain_name,
[config.master_host_name],
[config.master_host_name],
False,
paths.KRB5_CONF,
host_domain,
hostname,
configure_sssd=False
)
except CalledProcessError as e:
raise RuntimeError("Failed to fetch host keytab: {}".format(e))
@common_cleanup
@preserve_enrollment_state
def install_check(installer):
options = installer
filename = installer.replica_file
installer._enrollment_performed = False
if tasks.is_fips_enabled():
raise RuntimeError(
"Installing IPA server in FIPS mode on domain level 0 is not "
"supported")
# check selinux status, http and DS ports, NTP conflicting services
common_check(options.no_ntp)
client_fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
if client_fstore.has_files():
raise ScriptError(
"IPA client is already configured on this system.\n"
"Please uninstall it first before configuring the replica, "
"using 'ipa-client-install --uninstall'.")
sstore = sysrestore.StateFile(paths.SYSRESTORE)
fstore = sysrestore.FileStore(paths.SYSRESTORE)
# get the directory manager password
dirman_password = options.password
if not dirman_password:
try:
dirman_password = get_dirman_password()
except KeyboardInterrupt:
raise ScriptError(rval=0)
if dirman_password is None:
raise ScriptError("Directory Manager password required")
config = create_replica_config(dirman_password, filename, options)
config.ca_host_name = config.master_host_name
config.kra_host_name = config.ca_host_name
config.setup_ca = options.setup_ca
config.setup_kra = options.setup_kra
config.basedn = ipautil.realm_to_suffix(config.realm_name)
installer._top_dir = config.top_dir
installer._config = config
ca_enabled = os.path.isfile(os.path.join(config.dir, "cacert.p12"))
# Create the management framework config file
# Note: We must do this before bootstraping and finalizing ipalib.api
create_ipa_conf(fstore, config, ca_enabled)
api.bootstrap(in_server=True, context='installer', confdir=paths.ETC_IPA)
api.finalize()
installutils.verify_fqdn(config.master_host_name, options.no_host_dns)
cafile = os.path.join(config.dir, "ca.crt")
if not os.path.isfile(cafile):
raise RuntimeError("CA cert file is not available. Please run "
"ipa-replica-prepare to create a new replica file.")
# look up CA subject name (needed for DS certmap.conf)
options.ca_subject = unicode(
DN(x509.load_certificate_from_file(cafile).subject))
for pkcs12_name, pin_name in (('dscert.p12', 'dirsrv_pin.txt'),
('httpcert.p12', 'http_pin.txt')):
pkcs12_info = make_pkcs12_info(config.dir, pkcs12_name, pin_name)
tmp_db_dir = tempfile.mkdtemp('ipa')
try:
tmp_db = certs.CertDB(config.realm_name,
nssdir=tmp_db_dir,
subject_base=config.subject_base)
if ca_enabled:
trust_flags = IPA_CA_TRUST_FLAGS
else:
trust_flags = EXTERNAL_CA_TRUST_FLAGS
tmp_db.create_from_pkcs12(pkcs12_info[0], pkcs12_info[1],
ca_file=cafile,
trust_flags=trust_flags)
if not tmp_db.find_server_certs():
raise RuntimeError(
"Could not find a suitable server cert in import in %s" %
pkcs12_info[0])
except Exception as e:
logger.error('%s', e)
raise RuntimeError(
"Server cert is not valid. Please run ipa-replica-prepare to "
"create a new replica file.")
finally:
shutil.rmtree(tmp_db_dir)
ldapuri = 'ldaps://%s' % ipautil.format_netloc(config.master_host_name)
remote_api = create_api(mode=None)
remote_api.bootstrap(in_server=True,
context='installer',
confdir=paths.ETC_IPA,
ldap_uri=ldapuri)
remote_api.finalize()
installer._remote_api = remote_api
conn = remote_api.Backend.ldap2
replman = None
try:
# Try out the password
conn.connect(bind_dn=ipaldap.DIRMAN_DN, bind_pw=config.dirman_password,
cacert=cafile)
replman = ReplicationManager(config.realm_name,
config.master_host_name,
config.dirman_password)
# Check that we don't already have a replication agreement
if replman.get_replication_agreement(config.host_name):
logger.info('Error: A replication agreement for this '
'host already exists.')
msg = ("A replication agreement for this host already exists. "
"It needs to be removed.\n"
"Run this on the master that generated the info file:\n"
" %% ipa-replica-manage del %s --force" %
config.host_name)
raise ScriptError(msg, rval=3)
domain_level = current_domain_level(remote_api)
check_domain_level_is_supported(domain_level)
if domain_level != constants.DOMAIN_LEVEL_0:
raise RuntimeError(
"You used the wrong mechanism to install a replica in "
"domain level {dl}:\n"
"\tFor domain level >= 1 replica installation, first join the "
"domain by running ipa-client-install, then run "
"ipa-replica-install without a replica file."
.format(dl=domain_level)
)
# Check pre-existing host entry
try:
conn.find_entries(
u'fqdn=%s' % config.host_name, ['fqdn'],
DN(api.env.container_host, api.env.basedn))
except errors.NotFound:
pass
else:
logger.info('Error: Host %s already exists on the master '
'server.', config.host_name)
msg = ("The host %s already exists on the master server.\n"
"You should remove it before proceeding:\n"
" %% ipa host-del %s" %
(config.host_name, config.host_name))
raise ScriptError(msg, rval=3)
dns_masters = remote_api.Object['dnsrecord'].get_dns_masters()
if dns_masters:
if not options.no_host_dns:
master = config.master_host_name
logger.debug('Check forward/reverse DNS resolution')
resolution_ok = (
check_dns_resolution(master, dns_masters) and
check_dns_resolution(config.host_name, dns_masters))
if not resolution_ok and installer.interactive:
if not ipautil.user_input("Continue?", False):
raise ScriptError(rval=0)
else:
logger.debug('No IPA DNS servers, '
'skipping forward/reverse resolution check')
kra_enabled = remote_api.Command.kra_is_enabled()['result']
if ca_enabled:
options.realm_name = config.realm_name
options.host_name = config.host_name
ca.install_check(False, config, options)
if kra_enabled:
try:
kra.install_check(remote_api, config, options)
except RuntimeError as e:
raise ScriptError(e)
if options.setup_dns:
dns.install_check(False, remote_api, True, options,
config.host_name)
config.ips = dns.ip_addresses
else:
config.ips = installutils.get_server_ip_address(
config.host_name, not installer.interactive, False,
options.ip_addresses)
# check addresses here, dns module is doing own check
no_matching_interface_for_ip_address_warning(config.ips)
if options.setup_adtrust:
adtrust.install_check(False, options, remote_api)
enroll_dl0_replica(installer, fstore, remote_api)
ccache = os.environ['KRB5CCNAME']
kinit_keytab('host/{env.host}@{env.realm}'.format(env=api.env),
paths.KRB5_KEYTAB,
ccache)
except errors.ACIError:
raise ScriptError("\nThe password provided is incorrect for LDAP server "
"%s" % config.master_host_name)
except errors.LDAPError:
raise ScriptError("\nUnable to connect to LDAP server %s" %
config.master_host_name)
finally:
if replman and replman.conn:
replman.conn.unbind()
if conn.isconnected():
conn.disconnect()
# installer needs to update hosts file when DNS subsystem will be
# installed or custom addresses are used
if options.setup_dns or options.ip_addresses:
installer._update_hosts_file = True
# check connection
if not options.skip_conncheck:
try:
del os.environ['KRB5CCNAME']
replica_conn_check(
config.master_host_name, config.host_name, config.realm_name,
options.setup_ca, config.ca_ds_port, options.admin_password,
ca_cert_file=cafile)
finally:
os.environ['KRB5CCNAME'] = ccache
installer._ca_enabled = ca_enabled
installer._kra_enabled = kra_enabled
installer._ca_file = cafile
installer._fstore = fstore
installer._sstore = sstore
def ensure_enrolled(installer):
args = [paths.IPA_CLIENT_INSTALL, "--unattended"]
stdin = None
nolog = []
if installer.domain_name:
args.extend(["--domain", installer.domain_name])
if installer.server:
args.extend(["--server", installer.server])
if installer.realm_name:
args.extend(["--realm", installer.realm_name])
if installer.host_name:
args.extend(["--hostname", installer.host_name])
if installer.password:
args.extend(["--password", installer.password])
nolog.append(installer.password)
else:
if installer.admin_password:
# Always set principal if password was set explicitly,
# the password itself gets passed directly via stdin
args.extend(["--principal", installer.principal or "admin"])
stdin = installer.admin_password
if installer.keytab:
args.extend(["--keytab", installer.keytab])
if installer.no_dns_sshfp:
args.append("--no-dns-sshfp")
if installer.ssh_trust_dns:
args.append("--ssh-trust-dns")
if installer.no_ssh:
args.append("--no-ssh")
if installer.no_sshd:
args.append("--no-sshd")
if installer.mkhomedir:
args.append("--mkhomedir")
if installer.force_join:
args.append("--force-join")
if installer.no_ntp:
args.append("--no-ntp")
if installer.ip_addresses:
for ip in installer.ip_addresses:
# installer.ip_addresses is of type [CheckedIPAddress]
args.extend(("--ip-address", str(ip)))
try:
# Call client install script
service.print_msg("Configuring client side components")
installer._enrollment_performed = True
ipautil.run(args, stdin=stdin, nolog=nolog, redirect_output=True)
print()
except ipautil.CalledProcessError:
raise ScriptError("Configuration of client side components failed!")
def promotion_check_ipa_domain(master_ldap_conn, basedn):
entry = master_ldap_conn.get_entry(basedn, ['associatedDomain'])
if not 'associatedDomain' in entry:
raise RuntimeError('IPA domain not found in LDAP.')
if len(entry['associatedDomain']) > 1:
logger.critical(
"Multiple IPA domains found. We are so sorry :-(, you are "
"probably experiencing this bug "
"https://fedorahosted.org/freeipa/ticket/5976. Please contact us "
"for help.")
raise RuntimeError(
'Multiple IPA domains found in LDAP database ({domains}). '
'Only one domain is allowed.'.format(
domains=u', '.join(entry['associatedDomain'])
))
if entry['associatedDomain'][0] != api.env.domain:
raise RuntimeError(
"Cannot promote this client to a replica. Local domain "
"'{local}' does not match IPA domain '{ipadomain}'. ".format(
local=api.env.domain,
ipadomain=entry['associatedDomain'][0]
))
@common_cleanup
@preserve_enrollment_state
def promote_check(installer):
options = installer
installer._enrollment_performed = False
installer._top_dir = tempfile.mkdtemp("ipa")
# check selinux status, http and DS ports, NTP conflicting services
common_check(options.no_ntp)
client_fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
if not client_fstore.has_files():
ensure_enrolled(installer)
else:
if (options.domain_name or options.server or options.realm_name or
options.host_name or options.password or options.keytab):
print("IPA client is already configured on this system, ignoring "
"the --domain, --server, --realm, --hostname, --password "
"and --keytab options.")
sstore = sysrestore.StateFile(paths.SYSRESTORE)
fstore = sysrestore.FileStore(paths.SYSRESTORE)
env = Env()
env._bootstrap(context='installer', confdir=paths.ETC_IPA, log=None)
env._finalize_core(**dict(constants.DEFAULT_CONFIG))
# pylint: disable=no-member
xmlrpc_uri = 'https://{}/ipa/xml'.format(ipautil.format_netloc(env.host))
api.bootstrap(in_server=True,
context='installer',
confdir=paths.ETC_IPA,
ldap_uri=installutils.realm_to_ldapi_uri(env.realm),
xmlrpc_uri=xmlrpc_uri)
# pylint: enable=no-member
api.finalize()
config = ReplicaConfig()
config.realm_name = api.env.realm
config.host_name = api.env.host
config.domain_name = api.env.domain
config.master_host_name = api.env.server
config.ca_host_name = api.env.ca_host
config.kra_host_name = config.ca_host_name
config.ca_ds_port = 389
config.setup_ca = options.setup_ca
config.setup_kra = options.setup_kra
config.dir = installer._top_dir
config.basedn = api.env.basedn
http_pkcs12_file = None
http_pkcs12_info = None
http_ca_cert = None
dirsrv_pkcs12_file = None
dirsrv_pkcs12_info = None
dirsrv_ca_cert = None
pkinit_pkcs12_file = None
pkinit_pkcs12_info = None
pkinit_ca_cert = None
if options.http_cert_files:
if options.http_pin is None:
options.http_pin = installutils.read_password(
"Enter Apache Server private key unlock",
confirm=False, validate=False, retry=False)
if options.http_pin is None:
raise ScriptError(
"Apache Server private key unlock password required")
http_pkcs12_file, http_pin, http_ca_cert = load_pkcs12(
cert_files=options.http_cert_files,
key_password=options.http_pin,
key_nickname=options.http_cert_name,
ca_cert_files=options.ca_cert_files,
host_name=config.host_name)
http_pkcs12_info = (http_pkcs12_file.name, http_pin)
if options.dirsrv_cert_files:
if options.dirsrv_pin is None:
options.dirsrv_pin = installutils.read_password(
"Enter Directory Server private key unlock",
confirm=False, validate=False, retry=False)
if options.dirsrv_pin is None:
raise ScriptError(
"Directory Server private key unlock password required")
dirsrv_pkcs12_file, dirsrv_pin, dirsrv_ca_cert = load_pkcs12(
cert_files=options.dirsrv_cert_files,
key_password=options.dirsrv_pin,
key_nickname=options.dirsrv_cert_name,
ca_cert_files=options.ca_cert_files,
host_name=config.host_name)
dirsrv_pkcs12_info = (dirsrv_pkcs12_file.name, dirsrv_pin)
if options.pkinit_cert_files:
if options.pkinit_pin is None:
options.pkinit_pin = installutils.read_password(
"Enter Kerberos KDC private key unlock",
confirm=False, validate=False, retry=False)
if options.pkinit_pin is None:
raise ScriptError(
"Kerberos KDC private key unlock password required")
pkinit_pkcs12_file, pkinit_pin, pkinit_ca_cert = load_pkcs12(
cert_files=options.pkinit_cert_files,
key_password=options.pkinit_pin,
key_nickname=options.pkinit_cert_name,
ca_cert_files=options.ca_cert_files,
realm_name=config.realm_name)
pkinit_pkcs12_info = (pkinit_pkcs12_file.name, pkinit_pin)
if (options.http_cert_files and options.dirsrv_cert_files and
http_ca_cert != dirsrv_ca_cert):
raise RuntimeError("Apache Server SSL certificate and Directory "
"Server SSL certificate are not signed by the same"
" CA certificate")
if (options.http_cert_files and
options.pkinit_cert_files and
http_ca_cert != pkinit_ca_cert):
raise RuntimeError("Apache Server SSL certificate and PKINIT KDC "
"certificate are not signed by the same CA "
"certificate")
installutils.verify_fqdn(config.host_name, options.no_host_dns)
installutils.verify_fqdn(config.master_host_name, options.no_host_dns)
ccache = os.environ['KRB5CCNAME']
kinit_keytab('host/{env.host}@{env.realm}'.format(env=api.env),
paths.KRB5_KEYTAB,
ccache)
cafile = paths.IPA_CA_CRT
if not os.path.isfile(cafile):
raise RuntimeError("CA cert file is not available! Please reinstall"
"the client and try again.")
ldapuri = 'ldaps://%s' % ipautil.format_netloc(config.master_host_name)
xmlrpc_uri = 'https://{}/ipa/xml'.format(
ipautil.format_netloc(config.master_host_name))
remote_api = create_api(mode=None)
remote_api.bootstrap(in_server=True,
context='installer',
confdir=paths.ETC_IPA,
ldap_uri=ldapuri,
xmlrpc_uri=xmlrpc_uri)
remote_api.finalize()
installer._remote_api = remote_api
with rpc_client(remote_api) as client:
check_remote_version(client, parse_version(api.env.version))
check_remote_fips_mode(client, api.env.fips_mode)
conn = remote_api.Backend.ldap2
replman = None
try:
# Try out authentication
conn.connect(ccache=ccache)
replman = ReplicationManager(config.realm_name,
config.master_host_name, None)
promotion_check_ipa_domain(conn, remote_api.env.basedn)
domain_level = current_domain_level(remote_api)
check_domain_level_is_supported(domain_level)
if domain_level < constants.DOMAIN_LEVEL_1:
raise RuntimeError(
"You must provide a file generated by ipa-replica-prepare to "
"create a replica when the domain is at level 0."
)
# Check authorization
result = remote_api.Command['hostgroup_find'](
cn=u'ipaservers',
host=[unicode(api.env.host)]
)['result']
add_to_ipaservers = not result
if add_to_ipaservers:
if options.password and not options.admin_password:
raise errors.ACIError(info="Not authorized")
if installer._ccache is None:
del os.environ['KRB5CCNAME']
else:
os.environ['KRB5CCNAME'] = installer._ccache
try:
installutils.check_creds(options, config.realm_name)
installer._ccache = os.environ.get('KRB5CCNAME')
finally:
os.environ['KRB5CCNAME'] = ccache
conn.disconnect()
conn.connect(ccache=installer._ccache)
try:
result = remote_api.Command['hostgroup_show'](
u'ipaservers',
all=True,
rights=True
)['result']
if 'w' not in result['attributelevelrights']['member']:
raise errors.ACIError(info="Not authorized")
finally:
conn.disconnect()
conn.connect(ccache=ccache)
# Check that we don't already have a replication agreement
if replman.get_replication_agreement(config.host_name):
msg = ("A replication agreement for this host already exists. "
"It needs to be removed.\n"
"Run this command:\n"
" %% ipa-replica-manage del {host} --force"
.format(host=config.host_name))
raise ScriptError(msg, rval=3)
# Detect if the other master can handle replication managers
# cn=replication managers,cn=sysaccounts,cn=etc,$SUFFIX
dn = DN(('cn', 'replication managers'), ('cn', 'sysaccounts'),
('cn', 'etc'), ipautil.realm_to_suffix(config.realm_name))
try:
conn.get_entry(dn)
except errors.NotFound:
msg = ("The Replication Managers group is not available in "
"the domain. Replica promotion requires the use of "
"Replication Managers to be able to replicate data. "
"Upgrade the peer master or use the ipa-replica-prepare "
"command on the master and use a prep file to install "
"this replica.")
logger.error("%s", msg)
raise ScriptError(rval=3)
dns_masters = remote_api.Object['dnsrecord'].get_dns_masters()
if dns_masters:
if not options.no_host_dns:
logger.debug('Check forward/reverse DNS resolution')
resolution_ok = (
check_dns_resolution(config.master_host_name,
dns_masters) and
check_dns_resolution(config.host_name, dns_masters))
if not resolution_ok and installer.interactive:
if not ipautil.user_input("Continue?", False):
raise ScriptError(rval=0)
else:
logger.debug('No IPA DNS servers, '
'skipping forward/reverse resolution check')
entry_attrs = conn.get_ipa_config()
subject_base = entry_attrs.get('ipacertificatesubjectbase', [None])[0]
if subject_base is not None:
config.subject_base = DN(subject_base)
# Find if any server has a CA
ca_host = service.find_providing_server(
'CA', conn, config.ca_host_name)
if ca_host is not None:
config.ca_host_name = ca_host
ca_enabled = True
if options.dirsrv_cert_files:
logger.error("Certificates could not be provided when "
"CA is present on some master.")
raise ScriptError(rval=3)
else:
if options.setup_ca:
logger.error("The remote master does not have a CA "
"installed, can't set up CA")
raise ScriptError(rval=3)
ca_enabled = False
if not options.dirsrv_cert_files:
logger.error("Cannot issue certificates: a CA is not "
"installed. Use the --http-cert-file, "
"--dirsrv-cert-file options to provide "
"custom certificates.")
raise ScriptError(rval=3)
kra_host = service.find_providing_server(
'KRA', conn, config.kra_host_name)
if kra_host is not None:
config.kra_host_name = kra_host
kra_enabled = True
else:
if options.setup_kra:
logger.error("There is no KRA server in the domain, "
"can't setup a KRA clone")
raise ScriptError(rval=3)
kra_enabled = False
if ca_enabled:
options.realm_name = config.realm_name
options.host_name = config.host_name
ca.install_check(False, config, options)
if kra_enabled:
try:
kra.install_check(remote_api, config, options)
except RuntimeError as e:
raise ScriptError(e)
if options.setup_dns:
dns.install_check(False, remote_api, True, options,
config.host_name)
config.ips = dns.ip_addresses
else:
config.ips = installutils.get_server_ip_address(
config.host_name, not installer.interactive,
False, options.ip_addresses)
# check addresses here, dns module is doing own check
no_matching_interface_for_ip_address_warning(config.ips)
if options.setup_adtrust:
adtrust.install_check(False, options, remote_api)
except errors.ACIError:
logger.debug("%s", traceback.format_exc())
raise ScriptError("\nInsufficient privileges to promote the server."
"\nPossible issues:"
"\n- A user has insufficient privileges"
"\n- This client has insufficient privileges "
"to become an IPA replica")
except errors.LDAPError:
logger.debug("%s", traceback.format_exc())
raise ScriptError("\nUnable to connect to LDAP server %s" %
config.master_host_name)
finally:
if replman and replman.conn:
replman.conn.unbind()
if conn.isconnected():
conn.disconnect()
# check connection
if not options.skip_conncheck:
if add_to_ipaservers:
# use user's credentials when the server host is not ipaservers
if installer._ccache is None:
del os.environ['KRB5CCNAME']
else:
os.environ['KRB5CCNAME'] = installer._ccache
try:
replica_conn_check(
config.master_host_name, config.host_name, config.realm_name,
options.setup_ca, 389,
options.admin_password, principal=options.principal,
ca_cert_file=cafile)
finally:
if add_to_ipaservers:
os.environ['KRB5CCNAME'] = ccache
installer._ca_enabled = ca_enabled
installer._kra_enabled = kra_enabled
installer._ca_file = cafile
installer._fstore = fstore
installer._sstore = sstore
installer._config = config
installer._add_to_ipaservers = add_to_ipaservers
installer._dirsrv_pkcs12_file = dirsrv_pkcs12_file
installer._dirsrv_pkcs12_info = dirsrv_pkcs12_info
installer._http_pkcs12_file = http_pkcs12_file
installer._http_pkcs12_info = http_pkcs12_info
installer._pkinit_pkcs12_file = pkinit_pkcs12_file
installer._pkinit_pkcs12_info = pkinit_pkcs12_info
@common_cleanup
def install(installer):
options = installer
ca_enabled = installer._ca_enabled
kra_enabled = installer._kra_enabled
fstore = installer._fstore
sstore = installer._sstore
config = installer._config
config.promote = installer.promote
promote = installer.promote
cafile = installer._ca_file
dirsrv_pkcs12_info = installer._dirsrv_pkcs12_info
http_pkcs12_info = installer._http_pkcs12_info
pkinit_pkcs12_info = installer._pkinit_pkcs12_info
remote_api = installer._remote_api
conn = remote_api.Backend.ldap2
ccache = os.environ['KRB5CCNAME']
if promote:
if installer._add_to_ipaservers:
try:
conn.connect(ccache=installer._ccache)
remote_api.Command['hostgroup_add_member'](
u'ipaservers',
host=[unicode(api.env.host)],
)
finally:
if conn.isconnected():
conn.disconnect()
os.environ['KRB5CCNAME'] = ccache
config.dirman_password = ipautil.ipa_generate_password()
# FIXME: allow to use passed in certs instead
if ca_enabled:
configure_certmonger()
elif installer._update_hosts_file:
installutils.update_hosts_file(config.ips, config.host_name, fstore)
if not promote and not options.no_ntp:
# in DL1, chrony is already installed
ipaclient.install.timeconf.force_chrony(sstore)
try:
if promote:
conn.connect(ccache=ccache)
else:
# dmlvl 0 replica install should always use DM credentials
# to create remote LDAP connection. Since ACIs permitting hosts
# to manage their own services were added in 4.2 release,
# the master denies this operations.
conn.connect(bind_dn=ipaldap.DIRMAN_DN, cacert=cafile,
bind_pw=config.dirman_password)
# Update and istall updated CA file
cafile = install_ca_cert(conn, api.env.basedn, api.env.realm, cafile)
install_ca_cert(conn, api.env.basedn, api.env.realm, cafile,
destfile=paths.KDC_CA_BUNDLE_PEM)
install_ca_cert(conn, api.env.basedn, api.env.realm, cafile,
destfile=paths.CA_BUNDLE_PEM)
# Configure dirsrv
ds = install_replica_ds(config, options, ca_enabled,
remote_api,
ca_file=cafile,
promote=promote,
pkcs12_info=dirsrv_pkcs12_info)
# Always try to install DNS records
install_dns_records(config, options, remote_api)
finally:
if conn.isconnected():
conn.disconnect()
if promote:
# Create the management framework config file. Do this irregardless
# of the state of DS installation. Even if it fails,
# we need to have master-like configuration in order to perform a
# successful uninstallation
# The configuration creation has to be here otherwise previous call
# To config certmonger would try to connect to local server
create_ipa_conf(fstore, config, ca_enabled)
krb = install_krb(
config,
setup_pkinit=not options.no_pkinit,
pkcs12_info=pkinit_pkcs12_info,
promote=promote)
# we now need to enable ssl on the ds
ds.enable_ssl()
if promote:
# We need to point to the master when certmonger asks for
# HTTP certificate.
# During http installation, the HTTP/hostname principal is created
# locally then the installer waits for the entry to appear on the
# master selected for the installation.
# In a later step, the installer requests a SSL certificate through
# Certmonger (and the op adds the principal if it does not exist yet).
# If xmlrpc_uri points to the soon-to-be replica,
# the httpd service is not ready yet to handle certmonger requests
# and certmonger tries to find another master. The master can be
# different from the one selected for the installation, and it is
# possible that the principal has not been replicated yet. This
# may lead to a replication conflict.
# This is why we need to force the use of the same master by
# setting xmlrpc_uri
create_ipa_conf(fstore, config, ca_enabled,
master=config.master_host_name)
install_http(
config,
auto_redirect=not options.no_ui_redirect,
promote=promote,
pkcs12_info=http_pkcs12_info,
ca_is_configured=ca_enabled,
ca_file=cafile)
if promote:
# Need to point back to ourself after the cert for HTTP is obtained
create_ipa_conf(fstore, config, ca_enabled)
otpd = otpdinstance.OtpdInstance()
otpd.create_instance('OTPD', config.host_name,
ipautil.realm_to_suffix(config.realm_name))
if ca_enabled:
mode = custodiainstance.CustodiaModes.CA_PEER
else:
mode = custodiainstance.CustodiaModes.MASTER_PEER
custodia = custodiainstance.get_custodia_instance(config, mode)
custodia.create_instance()
if ca_enabled:
options.realm_name = config.realm_name
options.domain_name = config.domain_name
options.host_name = config.host_name
options.dm_password = config.dirman_password
ca.install(False, config, options, custodia=custodia)
# configure PKINIT now that all required services are in place
krb.enable_ssl()
# Apply any LDAP updates. Needs to be done after the replica is synced-up
service.print_msg("Applying LDAP updates")
ds.apply_updates()
if kra_enabled:
kra.install(api, config, options, custodia=custodia)
service.print_msg("Restarting the KDC")
krb.restart()
if promote:
custodia.import_dm_password(config.master_host_name)
promote_sssd(config.host_name)
promote_openldap_conf(config.host_name, config.master_host_name)
if options.setup_dns:
dns.install(False, True, options, api)
else:
api.Command.dns_update_system_records()
if options.setup_adtrust:
adtrust.install(False, options, fstore, api)
ca_servers = service.find_providing_servers('CA', api.Backend.ldap2, api)
api.Backend.ldap2.disconnect()
if not promote:
# Call client install script
service.print_msg("Configuring client side components")
try:
args = [paths.IPA_CLIENT_INSTALL, "--on-master", "--unattended",
"--domain", config.domain_name,
"--server", config.host_name,
"--realm", config.realm_name, "--no-ntp"]
if options.no_dns_sshfp:
args.append("--no-dns-sshfp")
if options.ssh_trust_dns:
args.append("--ssh-trust-dns")
if options.no_ssh:
args.append("--no-ssh")
if options.no_sshd:
args.append("--no-sshd")
if options.mkhomedir:
args.append("--mkhomedir")
ipautil.run(args, redirect_output=True)
print()
except Exception:
print("Configuration of client side components failed!")
raise RuntimeError("Failed to configure the client")
# remove the extracted replica file
remove_replica_info_dir(installer)
# Everything installed properly, activate ipa service.
services.knownservices.ipa.enable()
# Print a warning if CA role is only installed on one server
if len(ca_servers) == 1:
msg = textwrap.dedent(u'''
WARNING: The CA service is only installed on one server ({}).
It is strongly recommended to install it on another server.
Run ipa-ca-install(1) on another master to accomplish this.
'''.format(ca_servers[0]))
print(msg, file=sys.stderr)
def init(installer):
installer.unattended = not installer.interactive
installer.promote = installer.replica_file is None
if installer.servers:
installer.server = installer.servers[0]
else:
installer.server = None
if installer.replica_file is None:
installer.password = installer.host_password
else:
installer.password = installer.dm_password
installer._ccache = os.environ.get('KRB5CCNAME')
installer._top_dir = None
installer._config = None
installer._update_hosts_file = False
installer._dirsrv_pkcs12_file = None
installer._http_pkcs12_file = None
installer._pkinit_pkcs12_file = None
installer._dirsrv_pkcs12_info = None
installer._http_pkcs12_info = None
installer._pkinit_pkcs12_info = None
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