# Authors: # Petr Viktorin # # Copyright (C) 2013 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 . """Common tasks for FreeIPA integration tests""" import os import textwrap import re import collections import itertools import tempfile import time import dns from ldif import LDIFWriter from SSSDConfig import SSSDConfig from six import StringIO from ipapython import ipautil from ipaplatform.paths import paths from ipapython.dn import DN from ipapython.ipa_log_manager import log_mgr from ipatests.test_integration import util from ipatests.test_integration.env_config import env_to_script from ipatests.test_integration.host import Host from ipalib import errors from ipalib.util import get_reverse_zone_default, verify_host_resolvable from ipalib.constants import DOMAIN_SUFFIX_NAME from ipalib.constants import DOMAIN_LEVEL_0 log = log_mgr.get_logger(__name__) def check_arguments_are(slice, instanceof): """ :param: slice - tuple of integers denoting the beginning and the end of argument list to be checked :param: instanceof - name of the class the checked arguments should be instances of Example: @check_arguments_are((1, 3), int) will check that the second and third arguments are integers """ def wrapper(func): def wrapped(*args, **kwargs): for i in args[slice[0]:slice[1]]: assert isinstance(i, instanceof), "Wrong type: %s: %s" % (i, type(i)) return func(*args, **kwargs) return wrapped return wrapper def prepare_reverse_zone(host, ip): zone = get_reverse_zone_default(ip) result = host.run_command(["ipa", "dnszone-add", zone], raiseonerr=False) if result.returncode > 0: log.warning(result.stderr_text) return zone, result.returncode def prepare_host(host): if isinstance(host, Host): env_filename = os.path.join(host.config.test_dir, 'env.sh') # First we try to run simple echo command to test the connection host.run_command(['true'], set_env=False) host.collect_log(env_filename) try: host.transport.mkdir_recursive(host.config.test_dir) except IOError: # The folder already exists pass host.put_file_contents(env_filename, env_to_script(host.to_env())) def allow_sync_ptr(host): kinit_admin(host) host.run_command(["ipa", "dnsconfig-mod", "--allow-sync-ptr=true"], raiseonerr=False) def apply_common_fixes(host): fix_etc_hosts(host) fix_hostname(host) prepare_host(host) def backup_file(host, filename): if host.transport.file_exists(filename): backupname = os.path.join(host.config.test_dir, 'file_backup', filename.lstrip('/')) host.transport.mkdir_recursive(os.path.dirname(backupname)) host.run_command(['cp', '-af', filename, backupname]) return True else: rmname = os.path.join(host.config.test_dir, 'file_remove') host.run_command('echo %s >> %s' % ( ipautil.shell_quote(filename), ipautil.shell_quote(rmname))) contents = host.get_file_contents(rmname) host.transport.mkdir_recursive(os.path.dirname(rmname)) return False def fix_etc_hosts(host): backup_file(host, paths.HOSTS) contents = host.get_file_contents(paths.HOSTS) # Remove existing mentions of the host's FQDN, short name, and IP # Removing of IP must be done as first, otherwise hosts file may be # corrupted contents = re.sub('^%s.*' % re.escape(host.ip), '', contents, flags=re.MULTILINE) contents = re.sub('\s%s(\s|$)' % re.escape(host.hostname), ' ', contents, flags=re.MULTILINE) contents = re.sub('\s%s(\s|$)' % re.escape(host.shortname), ' ', contents, flags=re.MULTILINE) # Add the host's info again contents += '\n%s %s %s\n' % (host.ip, host.hostname, host.shortname) log.debug('Writing the following to /etc/hosts:\n%s', contents) host.put_file_contents(paths.HOSTS, contents) def fix_hostname(host): backup_file(host, paths.ETC_HOSTNAME) host.put_file_contents(paths.ETC_HOSTNAME, host.hostname + '\n') host.run_command(['hostname', host.hostname]) backupname = os.path.join(host.config.test_dir, 'backup_hostname') host.run_command('hostname > %s' % ipautil.shell_quote(backupname)) def host_service_active(host, service): res = host.run_command(['systemctl', 'is-active', '--quiet', service], raiseonerr=False) if res.returncode == 0: return True else: return False def fix_apache_semaphores(master): systemd_available = master.transport.file_exists(paths.SYSTEMCTL) if systemd_available: master.run_command(['systemctl', 'stop', 'httpd'], raiseonerr=False) else: master.run_command([paths.SBIN_SERVICE, 'httpd', 'stop'], raiseonerr=False) master.run_command('for line in `ipcs -s | grep apache | cut -d " " -f 2`; ' 'do ipcrm -s $line; done', raiseonerr=False) def unapply_fixes(host): restore_files(host) restore_hostname(host) # Clean ccache to prevent issues like 5741 host.run_command(['kdestroy', '-A'], raiseonerr=False) # Clean up the test directory host.run_command(['rm', '-rvf', host.config.test_dir]) def restore_files(host): backupname = os.path.join(host.config.test_dir, 'file_backup') rmname = os.path.join(host.config.test_dir, 'file_remove') # Prepare command for restoring context of the backed-up files sed_remove_backupdir = 's/%s//g' % backupname.replace('/', '\/') restorecon_command = ( "find %s | " "sed '%s' | " "sed '/^$/d' | " "xargs -d '\n' " "/sbin/restorecon -v" % (backupname, sed_remove_backupdir)) # Prepare command for actual restoring of the backed up files copyfiles_command = 'if [ -d %(dir)s/ ]; then cp -arvf %(dir)s/* /; fi' % { 'dir': ipautil.shell_quote(backupname)} # Run both commands in one session. For more information, see: # https://fedorahosted.org/freeipa/ticket/4133 host.run_command('%s ; (%s ||:)' % (copyfiles_command, restorecon_command)) # Remove all the files that did not exist and were 'backed up' host.run_command(['xargs', '-d', r'\n', '-a', rmname, 'rm', '-vf'], raiseonerr=False) host.run_command(['rm', '-rvf', backupname, rmname], raiseonerr=False) def restore_hostname(host): backupname = os.path.join(host.config.test_dir, 'backup_hostname') try: hostname = host.get_file_contents(backupname) except IOError: log.debug('No hostname backed up on %s' % host.hostname) else: host.run_command(['hostname', hostname.strip()]) host.run_command(['rm', backupname]) def enable_replication_debugging(host): log.info('Enable LDAP replication logging') logging_ldif = textwrap.dedent(""" dn: cn=config changetype: modify replace: nsslapd-errorlog-level nsslapd-errorlog-level: 8192 """) host.run_command(['ldapmodify', '-x', '-D', str(host.config.dirman_dn), '-w', host.config.dirman_password], stdin_text=logging_ldif) def install_master(host, setup_dns=True, setup_kra=False, extra_args=(), domain_level=None): if domain_level is None: domain_level = host.config.domain_level host.collect_log(paths.IPASERVER_INSTALL_LOG) host.collect_log(paths.IPACLIENT_INSTALL_LOG) inst = host.domain.realm.replace('.', '-') host.collect_log(paths.SLAPD_INSTANCE_ERROR_LOG_TEMPLATE % inst) host.collect_log(paths.SLAPD_INSTANCE_ACCESS_LOG_TEMPLATE % inst) apply_common_fixes(host) fix_apache_semaphores(host) args = [ 'ipa-server-install', '-U', '-n', host.domain.name, '-r', host.domain.realm, '-p', host.config.dirman_password, '-a', host.config.admin_password, "--domain-level=%i" % domain_level, ] if setup_dns: args.extend([ '--setup-dns', '--forwarder', host.config.dns_forwarder, '--auto-reverse' ]) args.extend(extra_args) host.run_command(args) enable_replication_debugging(host) setup_sssd_debugging(host) if setup_kra: args = [ "ipa-kra-install", "-p", host.config.dirman_password, "-U", ] host.run_command(args) kinit_admin(host) def get_replica_filename(replica): return os.path.join(replica.config.test_dir, 'replica-info.gpg') def domainlevel(host): # Dynamically determines the domainlevel on master. Needed for scenarios # when domainlevel is changed during the test execution. result = host.run_command(['ipa', 'domainlevel-get'], raiseonerr=False) level = 0 domlevel_re = re.compile('.*(\d)') if result.returncode == 0: # "domainlevel-get" command doesn't exist on ipa versions prior to 4.3 level = int(domlevel_re.findall(result.stdout_text)[0]) return level def master_authoritative_for_client_domain(master, client): zone = ".".join(client.hostname.split('.')[1:]) result = master.run_command(["ipa", "dnszone-show", zone], raiseonerr=False) if result.returncode == 0: return True else: return False def replica_prepare(master, replica): fix_apache_semaphores(replica) prepare_reverse_zone(master, replica.ip) args = ['ipa-replica-prepare', '-p', replica.config.dirman_password, replica.hostname] if master_authoritative_for_client_domain(master, replica): args.extend(['--ip-address', replica.ip]) master.run_command(args) replica_bundle = master.get_file_contents( paths.REPLICA_INFO_GPG_TEMPLATE % replica.hostname) replica_filename = get_replica_filename(replica) replica.put_file_contents(replica_filename, replica_bundle) def install_replica(master, replica, setup_ca=True, setup_dns=False, setup_kra=False, extra_args=(), domain_level=None): if domain_level is None: domain_level = domainlevel(master) apply_common_fixes(replica) replica.collect_log(paths.IPAREPLICA_INSTALL_LOG) replica.collect_log(paths.IPAREPLICA_CONNCHECK_LOG) allow_sync_ptr(master) # Otherwise ipa-client-install would not create a PTR # and replica installation would fail args = ['ipa-replica-install', '-U', '-p', replica.config.dirman_password, '-w', replica.config.admin_password] if setup_ca: args.append('--setup-ca') if setup_dns: args.extend([ '--setup-dns', '--forwarder', replica.config.dns_forwarder ]) if master_authoritative_for_client_domain(master, replica): args.extend(['--ip-address', replica.ip]) args.extend(extra_args) if domain_level == DOMAIN_LEVEL_0: # prepare the replica file on master and put it to replica, AKA "old way" replica_prepare(master, replica) replica_filename = get_replica_filename(replica) args.append(replica_filename) else: # install client on a replica machine and then promote it to replica install_client(master, replica) fix_apache_semaphores(replica) args.extend(['-r', replica.domain.realm]) replica.run_command(args) enable_replication_debugging(replica) setup_sssd_debugging(replica) if setup_kra: assert setup_ca, "CA must be installed on replica with KRA" args = [ "ipa-kra-install", "-p", replica.config.dirman_password, "-U", ] if domainlevel(master) == DOMAIN_LEVEL_0: args.append(replica_filename) replica.run_command(args) kinit_admin(replica) def install_client(master, client, extra_args=()): client.collect_log(paths.IPACLIENT_INSTALL_LOG) apply_common_fixes(client) allow_sync_ptr(master) # Now, for the situations where a client resides in a different subnet from # master, we need to explicitly tell master to create a reverse zone for # the client and enable dynamic updates for this zone. zone, error = prepare_reverse_zone(master, client.ip) if not error: master.run_command(["ipa", "dnszone-mod", zone, "--dynamic-update=TRUE"]) client.run_command(['ipa-client-install', '-U', '--domain', client.domain.name, '--realm', client.domain.realm, '-p', client.config.admin_name, '-w', client.config.admin_password, '--server', master.hostname] + list(extra_args)) setup_sssd_debugging(client) kinit_admin(client) def install_adtrust(host): """ Runs ipa-adtrust-install on the client and generates SIDs for the entries. Configures the compat tree for the legacy clients. """ # ipa-adtrust-install appends to ipaserver-install.log host.collect_log(paths.IPASERVER_INSTALL_LOG) inst = host.domain.realm.replace('.', '-') host.collect_log(paths.SLAPD_INSTANCE_ERROR_LOG_TEMPLATE % inst) host.collect_log(paths.SLAPD_INSTANCE_ACCESS_LOG_TEMPLATE % inst) kinit_admin(host) host.run_command(['ipa-adtrust-install', '-U', '--enable-compat', '--netbios-name', host.netbios, '-a', host.config.admin_password, '--add-sids']) # Restart named because it lost connection to dirsrv # (Directory server restarts during the ipa-adtrust-install) # we use two services named and named-pkcs11, # if named is masked restart named-pkcs11 result = host.run_command(['systemctl', 'is-enabled', 'named'], raiseonerr=False) if result.stdout_text.startswith("masked"): host.run_command(['systemctl', 'restart', 'named-pkcs11']) else: host.run_command(['systemctl', 'restart', 'named']) # Check that named is running and has loaded the information from LDAP dig_command = ['dig', 'SRV', '+short', '@localhost', '_ldap._tcp.%s' % host.domain.name] dig_output = '0 100 389 %s.' % host.hostname dig_test = lambda x: re.search(re.escape(dig_output), x) util.run_repeatedly(host, dig_command, test=dig_test) def configure_dns_for_trust(master, ad): """ This method is intentionally left empty. Originally it served for DNS configuration on IPA master according to the relationship of the IPA's and AD's domains. """ pass def establish_trust_with_ad(master, ad, extra_args=()): """ Establishes trust with Active Directory. Trust type is detected depending on the presence of SfU (Services for Unix) support on the AD. Use extra arguments to pass extra arguments to the trust-add command, such as --range-type="ipa-ad-trust" to enfroce a particular range type. """ # Force KDC to reload MS-PAC info by trying to get TGT for HTTP master.run_command(['kinit', '-kt', paths.IPA_KEYTAB, 'HTTP/%s' % master.hostname]) master.run_command(['systemctl', 'restart', 'krb5kdc.service']) master.run_command(['kdestroy', '-A']) kinit_admin(master) master.run_command(['klist']) master.run_command(['smbcontrol', 'all', 'debug', '100']) util.run_repeatedly(master, ['ipa', 'trust-add', '--type', 'ad', ad.domain.name, '--admin', 'Administrator', '--password'] + list(extra_args), stdin_text=master.config.ad_admin_password) master.run_command(['smbcontrol', 'all', 'debug', '1']) clear_sssd_cache(master) def remove_trust_with_ad(master, ad): """ Removes trust with Active Directory. Also removes the associated ID range. """ kinit_admin(master) # Remove the trust master.run_command(['ipa', 'trust-del', ad.domain.name]) # Remove the range range_name = ad.domain.name.upper() + '_id_range' master.run_command(['ipa', 'idrange-del', range_name]) def configure_auth_to_local_rule(master, ad): """ Configures auth_to_local rule in /etc/krb5.conf """ section_identifier = " %s = {" % master.domain.realm line1 = (" auth_to_local = RULE:[1:$1@$0](^.*@%s$)s/@%s/@%s/" % (ad.domain.realm, ad.domain.realm, ad.domain.name)) line2 = " auth_to_local = DEFAULT" krb5_conf_content = master.get_file_contents(paths.KRB5_CONF) krb5_lines = [line.rstrip() for line in krb5_conf_content.split('\n')] realm_section_index = krb5_lines.index(section_identifier) krb5_lines.insert(realm_section_index + 1, line1) krb5_lines.insert(realm_section_index + 2, line2) krb5_conf_new_content = '\n'.join(krb5_lines) master.put_file_contents(paths.KRB5_CONF, krb5_conf_new_content) master.run_command(['systemctl', 'restart', 'sssd']) def setup_sssd_debugging(host): """ Sets debug level to 7 in each section of sssd.conf file. """ # Set debug level in each section of sssd.conf file to 7 # First, remove any previous occurences host.run_command(['sed', '-i', '/debug_level = 7/d', paths.SSSD_CONF], raiseonerr=False) # Add the debug directive to each section host.run_command(['sed', '-i', '/\[*\]/ a\debug_level = 7', paths.SSSD_CONF], raiseonerr=False) host.collect_log(os.path.join(paths.VAR_LOG_SSSD_DIR, '*')) # Clear the cache and restart SSSD clear_sssd_cache(host) def modify_sssd_conf(host, domain, mod_dict, provider='ipa', provider_subtype=None): """ modify options in a single domain section of host's sssd.conf :param host: multihost.Host object :param domain: domain section name to modify :param mod_dict: dictionary of options which will be passed to SSSDDomain.set_option(). To remove an option specify its value as None :param provider: provider backend to set. Defaults to ipa :param provider_subtype: backend subtype (e.g. id or sudo), will be added to the domain config if not present """ try: temp_config_file = tempfile.mkstemp()[1] current_config = host.transport.get_file_contents(paths.SSSD_CONF) with open(temp_config_file, 'wb') as f: f.write(current_config) sssd_config = SSSDConfig() sssd_config.import_config(temp_config_file) sssd_domain = sssd_config.get_domain(domain) if provider_subtype is not None: sssd_domain.add_provider(provider, provider_subtype) for m in mod_dict: sssd_domain.set_option(m, mod_dict[m]) sssd_config.save_domain(sssd_domain) new_config = sssd_config.dump(sssd_config.opts).encode('utf-8') host.transport.put_file_contents(paths.SSSD_CONF, new_config) finally: try: os.remove(temp_config_file) except OSError: pass def clear_sssd_cache(host): """ Clears SSSD cache by removing the cache files. Restarts SSSD. """ systemd_available = host.transport.file_exists(paths.SYSTEMCTL) if systemd_available: host.run_command(['systemctl', 'stop', 'sssd']) else: host.run_command([paths.SBIN_SERVICE, 'sssd', 'stop']) host.run_command("find /var/lib/sss/db -name '*.ldb' | " "xargs rm -fv") host.run_command(['rm', '-fv', paths.SSSD_MC_GROUP]) host.run_command(['rm', '-fv', paths.SSSD_MC_PASSWD]) if systemd_available: host.run_command(['systemctl', 'start', 'sssd']) else: host.run_command([paths.SBIN_SERVICE, 'sssd', 'start']) # To avoid false negatives due to SSSD not responding yet time.sleep(10) def sync_time(host, server): """ Syncs the time with the remote server. Please note that this function leaves ntpd stopped. """ host.run_command(['systemctl', 'stop', 'ntpd']) host.run_command(['ntpdate', server.hostname]) def connect_replica(master, replica, domain_level=None): if domain_level is None: domain_level = master.config.domain_level if domain_level == DOMAIN_LEVEL_0: replica.run_command(['ipa-replica-manage', 'connect', master.hostname]) else: kinit_admin(master) master.run_command(["ipa", "topologysegment-add", DOMAIN_SUFFIX_NAME, "%s-to-%s" % (master.hostname, replica.hostname), "--leftnode=%s" % master.hostname, "--rightnode=%s" % replica.hostname ]) def disconnect_replica(master, replica, domain_level=None): if domain_level is None: domain_level = master.config.domain_level if domain_level == DOMAIN_LEVEL_0: replica.run_command(['ipa-replica-manage', 'disconnect', master.hostname]) else: kinit_admin(master) master.run_command(["ipa", "topologysegment-del", DOMAIN_SUFFIX_NAME, "%s-to-%s" % (master.hostname, replica.hostname), "--continue" ]) def kinit_admin(host): host.run_command(['kinit', 'admin'], stdin_text=host.config.admin_password) def uninstall_master(host, ignore_topology_disconnect=True, ignore_last_of_role=True): host.collect_log(paths.IPASERVER_UNINSTALL_LOG) uninstall_cmd = ['ipa-server-install', '--uninstall', '-U'] host_domain_level = domainlevel(host) if ignore_topology_disconnect and host_domain_level != DOMAIN_LEVEL_0: uninstall_cmd.append('--ignore-topology-disconnect') if ignore_last_of_role and host_domain_level != DOMAIN_LEVEL_0: uninstall_cmd.append('--ignore-last-of-role') host.run_command(uninstall_cmd, raiseonerr=False) host.run_command(['pkidestroy', '-s', 'CA', '-i', 'pki-tomcat'], raiseonerr=False) host.run_command(['rm', '-rf', paths.TOMCAT_TOPLEVEL_DIR, paths.SYSCONFIG_PKI_TOMCAT, paths.SYSCONFIG_PKI_TOMCAT_PKI_TOMCAT_DIR, paths.VAR_LIB_PKI_TOMCAT_DIR, paths.PKI_TOMCAT, paths.REPLICA_INFO_GPG_TEMPLATE % host.hostname], raiseonerr=False) unapply_fixes(host) def uninstall_client(host): host.collect_log(paths.IPACLIENT_UNINSTALL_LOG) host.run_command(['ipa-client-install', '--uninstall', '-U'], raiseonerr=False) unapply_fixes(host) @check_arguments_are((0, 2), Host) def clean_replication_agreement(master, replica): """ Performs `ipa-replica-manage del replica_hostname --force`. """ master.run_command(['ipa-replica-manage', 'del', replica.hostname, '--force']) @check_arguments_are((0, 3), Host) def create_segment(master, leftnode, rightnode, suffix=DOMAIN_SUFFIX_NAME): """ creates a topology segment. The first argument is a node to run the command :returns: a hash object containing segment's name, leftnode, rightnode information and an error string. """ kinit_admin(master) lefthost = leftnode.hostname righthost = rightnode.hostname segment_name = "%s-to-%s" % (lefthost, righthost) result = master.run_command(["ipa", "topologysegment-add", suffix, segment_name, "--leftnode=%s" % lefthost, "--rightnode=%s" % righthost], raiseonerr=False) if result.returncode == 0: return {'leftnode': lefthost, 'rightnode': righthost, 'name': segment_name}, "" else: return {}, result.stderr_text def destroy_segment(master, segment_name, suffix=DOMAIN_SUFFIX_NAME): """ Destroys topology segment. :param master: reference to master object of class Host :param segment_name: name of the segment to be created """ assert isinstance(master, Host), "master should be an instance of Host" kinit_admin(master) command = ["ipa", "topologysegment-del", suffix, segment_name] result = master.run_command(command, raiseonerr=False) return result.returncode, result.stderr_text def get_topo(name_or_func): """Get a topology function by name A topology function receives a master and list of replicas, and yields (parent, child) pairs, where "child" should be installed from "parent" (or just connected if already installed) If a callable is given instead of name, it is returned directly """ if callable(name_or_func): return name_or_func return topologies[name_or_func] def _topo(name): """Decorator that registers a function in topologies under a given name""" def add_topo(func): topologies[name] = func return func return add_topo topologies = collections.OrderedDict() @_topo('star') def star_topo(master, replicas): r"""All replicas are connected to the master Rn R1 R2 \ | / R7-- M -- R3 / | \ R6 R5 R4 """ for replica in replicas: yield master, replica @_topo('line') def line_topo(master, replicas): r"""Line topology M \ R1 \ R2 \ R3 \ ... """ for replica in replicas: yield master, replica master = replica @_topo('complete') def complete_topo(master, replicas): r"""Each host connected to each other host M--R1 |\/| |/\| R2-R3 """ for replica in replicas: yield master, replica for replica1, replica2 in itertools.combinations(replicas, 2): yield replica1, replica2 @_topo('tree') def tree_topo(master, replicas): r"""Binary tree topology M / \ / \ R1 R2 / \ / \ R3 R4 R5 R6 / R7 ... """ replicas = list(replicas) def _masters(): for host in [master] + replicas: yield host yield host for parent, child in zip(_masters(), replicas): yield parent, child @_topo('tree2') def tree2_topo(master, replicas): r"""First replica connected directly to master, the rest in a line M / \ R1 R2 \ R3 \ R4 \ ... """ if replicas: yield master, replicas[0] for replica in replicas[1:]: yield master, replica master = replica @_topo('2-connected') def two_connected_topo(master, replicas): r"""No replica has more than 4 agreements and at least two replicas must fail to disconnect the topology. . . . . . . . . . . . . ... R --- R R --- R ... \ / \ / \ / \ / \ / \ / ... R R R ... \ / \ / \ / \ / M0 -- R2 | | | | R1 -- R3 . \ / . . \ / . . R . . . . . . . """ grow = [] pool = [master] + replicas try: v0 = pool.pop(0) v1 = pool.pop(0) yield v0, v1 v2 = pool.pop(0) yield v0, v2 grow.append((v0, v2)) v3 = pool.pop(0) yield v2, v3 yield v1, v3 grow.append((v1, v3)) for (r, s) in grow: t = pool.pop(0) for (u, v) in [(r, t), (s, t)]: yield u, v w = pool.pop(0) yield u, w x = pool.pop(0) yield v, x yield w, x grow.append((w, x)) except IndexError: return @_topo('double-circle') def double_circle_topo(master, replicas, site_size=6): """ R--R |\/| |/\| R--R / \ M -- R /| |\ / | | \ R - R - R--|----|--R - R - R | X | | | | | | X | R - R - R -|----|--R - R - R \ | | / \| |/ R -- R \ / R--R |\/| |/\| R--R """ # to provide redundancy there must be at least two replicas per site assert site_size >= 2 # do not handle master other than the rest of the servers servers = [master] + replicas # split servers into sites it = [iter(servers)] * site_size sites = [(x[0], x[1], x[2:]) for x in zip(*it)] num_sites = len(sites) for i in range(num_sites): (a, b, _ignore) = sites[i] # create agreement inside the site yield a, b # create agreement to one server in two next sites for (c, d, _ignore) in [sites[(i+n) % num_sites] for n in [1, 2]]: yield b, c if site_size > 2: # deploy servers inside the site for site in sites: site_servers = list(site[2]) yield site[0], site_servers[0] for edge in complete_topo(site_servers[0], site_servers[1:]): yield edge yield site[1], site_servers[-1] def install_topo(topo, master, replicas, clients, domain_level=None, skip_master=False, setup_replica_cas=True): """Install IPA servers and clients in the given topology""" replicas = list(replicas) installed = {master} if not skip_master: install_master(master, domain_level=domain_level) add_a_records_for_hosts_in_master_domain(master) for parent, child in get_topo(topo)(master, replicas): if child in installed: log.info('Connecting replica %s to %s' % (parent, child)) connect_replica(parent, child) else: log.info('Installing replica %s from %s' % (parent, child)) install_replica(parent, child, setup_ca=setup_replica_cas) installed.add(child) install_clients([master] + replicas, clients) def install_clients(servers, clients): """Install IPA clients, distributing them among the given servers""" for server, client in itertools.izip(itertools.cycle(servers), clients): log.info('Installing client %s on %s' % (server, client)) install_client(server, client) def _entries_to_ldif(entries): """Format LDAP entries as LDIF""" lines = [] io = StringIO() writer = LDIFWriter(io) for entry in entries: writer.unparse(str(entry.dn), dict(entry)) return io.getvalue() def wait_for_replication(ldap, timeout=30): """Wait until updates on all replication agreements are done (or failed) :param ldap: LDAP client autenticated with necessary rights to read the mapping tree :param timeout: Maximum time to wait, in seconds Note that this waits for updates originating on this host, not those coming from other hosts. """ log.debug('Waiting for replication to finish') for i in range(timeout): time.sleep(1) status_attr = 'nsds5replicaLastUpdateStatus' progress_attr = 'nsds5replicaUpdateInProgress' entries = ldap.get_entries( DN(('cn', 'mapping tree'), ('cn', 'config')), filter='(objectclass=nsds5replicationagreement)', attrs_list=[status_attr, progress_attr]) log.debug('Replication agreements: \n%s', _entries_to_ldif(entries)) if any(not e.single_value[status_attr].startswith('0 ') for e in entries): log.error('Replication error') continue if any(e.single_value[progress_attr] == 'TRUE' for e in entries): log.debug('Replication in progress (waited %s/%ss)', i, timeout) else: log.debug('Replication finished') break else: log.error('Giving up wait for replication to finish') def add_a_records_for_hosts_in_master_domain(master): for host in master.domain.hosts: # We don't need to take care of the zone creation since it is master # domain try: verify_host_resolvable(host.hostname) log.debug("The host (%s) is resolvable." % host.domain.name) except errors.DNSNotARecordError: log.debug("Hostname (%s) does not have A/AAAA record. Adding new one.", master.hostname) add_a_record(master, host) def add_a_record(master, host): # Find out if the record is already there cmd = master.run_command(['ipa', 'dnsrecord-show', master.domain.name, host.hostname + "."], raiseonerr=False) # If not, add it if cmd.returncode != 0: master.run_command(['ipa', 'dnsrecord-add', master.domain.name, host.hostname + ".", '--a-rec', host.ip]) def resolve_record(nameserver, query, rtype="SOA", retry=True, timeout=100): """Resolve DNS record :retry: if resolution failed try again until timeout is reached :timeout: max period of time while method will try to resolve query (requires retry=True) """ res = dns.resolver.Resolver() res.nameservers = [nameserver] res.lifetime = 10 # wait max 10 seconds for reply wait_until = time.time() + timeout while time.time() < wait_until: try: ans = res.query(query, rtype) return ans except dns.exception.DNSException: if not retry: raise time.sleep(1) def ipa_backup(master): result = master.run_command(["ipa-backup"]) path_re = re.compile("^Backed up to (?P.*)$", re.MULTILINE) matched = path_re.search(result.stdout_text + result.stderr_text) return matched.group("backup") def ipa_restore(master, backup_path): master.run_command(["ipa-restore", "-U", "-p", master.config.dirman_password, backup_path]) def install_kra(host, domain_level=None, first_instance=False, raiseonerr=True): if domain_level is None: domain_level = domainlevel(host) command = ["ipa-kra-install", "-U", "-p", host.config.dirman_password] if domain_level == DOMAIN_LEVEL_0 and not first_instance: replica_file = get_replica_filename(host) command.append(replica_file) return host.run_command(command, raiseonerr=raiseonerr) def install_ca(host, domain_level=None, first_instance=False, raiseonerr=True): if domain_level is None: domain_level = domainlevel(host) command = ["ipa-ca-install", "-U", "-p", host.config.dirman_password, "-P", 'admin', "-w", host.config.admin_password] if domain_level == DOMAIN_LEVEL_0 and not first_instance: replica_file = get_replica_filename(host) command.append(replica_file) return host.run_command(command, raiseonerr=raiseonerr) def install_dns(host, raiseonerr=True): args = [ "ipa-dns-install", "--forwarder", host.config.dns_forwarder, "-U", ] return host.run_command(args, raiseonerr=raiseonerr) def uninstall_replica(master, replica): master.run_command(["ipa-replica-manage", "del", "--force", "-p", master.config.dirman_password, replica.hostname], raiseonerr=False) uninstall_master(replica) def replicas_cleanup(func): """ replicas_cleanup decorator, applied to any test method in integration tests uninstalls all replicas in the topology leaving only master configured """ def wrapped(*args): func(*args) for host in args[0].replicas: uninstall_replica(args[0].master, host) uninstall_client(host) result = args[0].master.run_command( ["ipa", "host-del", "--updatedns", host.hostname], raiseonerr=False) # Workaround for 5627 if "host not found" in result.stderr_text: args[0].master.run_command(["ipa", "host-del", host.hostname], raiseonerr=False) return wrapped def run_server_del(host, server_to_delete, force=False, ignore_topology_disconnect=False, ignore_last_of_role=False): kinit_admin(host) args = ['ipa', 'server-del', server_to_delete] if force: args.append('--force') if ignore_topology_disconnect: args.append('--ignore-topology-disconnect') if ignore_last_of_role: args.append('--ignore-last-of-role') return host.run_command(args, raiseonerr=False) def assert_error(result, stderr_text, returncode=None): "Assert that `result` command failed and its stderr contains `stderr_text`" assert stderr_text in result.stderr_text, result.stderr_text if returncode: assert result.returncode == returncode else: assert result.returncode > 0