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c740cb84ba
test_ipa_ca_records and test_adtrust_system_records can fail with NXDOMAIN, because it doesn't wait enough for the update on replica. It can be resolved by waiting for the update with wait_for_replication. Fixes: https://pagure.io/freeipa/issue/9504 Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
581 lines
21 KiB
Python
581 lines
21 KiB
Python
#
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# Copyright (C) 2016 FreeIPA Contributors see COPYING for license
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#
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import logging
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import re
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import time
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import pytest
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import dns.resolver
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import dns.rrset
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import dns.rdatatype
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import dns.rdataclass
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from ipatests.test_integration.base import IntegrationTest
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from ipatests.pytest_ipa.integration import tasks
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from ipapython.dnsutil import DNSName, DNSResolver
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from ipalib.constants import IPA_CA_RECORD
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logger = logging.getLogger(__name__)
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IPA_DEFAULT_MASTER_SRV_REC = (
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# srv record name, port
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(DNSName(u'_ldap._tcp'), 389),
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(DNSName(u'_kerberos._tcp'), 88),
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(DNSName(u'_kerberos._udp'), 88),
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(DNSName(u'_kerberos-master._tcp'), 88),
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(DNSName(u'_kerberos-master._udp'), 88),
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(DNSName(u'_kpasswd._tcp'), 464),
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(DNSName(u'_kpasswd._udp'), 464),
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)
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IPA_DEFAULT_MASTER_URI_REC = (
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(
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DNSName('_kerberos'),
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("krb5srv:m:tcp:{hostname}", "krb5srv:m:udp:{hostname}")
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),
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(
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DNSName('_kpasswd'),
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("krb5srv:m:tcp:{hostname}", "krb5srv:m:udp:{hostname}")
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),
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)
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IPA_DEFAULT_ADTRUST_SRV_REC = (
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# srv record name, port
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(DNSName(u'_ldap._tcp.Default-First-Site-Name._sites.dc._msdcs'), 389),
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(DNSName(u'_ldap._tcp.dc._msdcs'), 389),
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(DNSName(u'_kerberos._tcp.Default-First-Site-Name._sites.dc._msdcs'), 88),
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(DNSName(u'_kerberos._udp.Default-First-Site-Name._sites.dc._msdcs'), 88),
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(DNSName(u'_kerberos._tcp.dc._msdcs'), 88),
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(DNSName(u'_kerberos._udp.dc._msdcs'), 88),
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)
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IPA_CA_A_REC = (
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(DNSName(str(IPA_CA_RECORD))),
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)
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def resolve_records_from_server(rname, rtype, nameserver):
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error = None
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res = DNSResolver()
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res.nameservers = [nameserver]
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res.lifetime = 30
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logger.info("Query: %s %s, nameserver %s", rname, rtype, nameserver)
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# lets try to query 3x
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for _i in range(3):
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try:
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ans = res.resolve(rname, rtype)
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logger.info("Answer: %s", ans.rrset)
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return ans.rrset
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except (dns.resolver.NXDOMAIN, dns.resolver.Timeout) as e:
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error = e
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time.sleep(10)
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pytest.fail("Query: {} {}, nameserver {} failed due to {}".format(
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rname, rtype, nameserver, error))
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return None
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def _gen_expected_srv_rrset(rname, port, servers, ttl=86400):
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rdata_list = [
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"{prio} {weight} {port} {servername}".format(
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prio=prio,
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weight=weight,
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port=port,
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servername=servername.make_absolute()
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)
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for prio, weight, servername in servers
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]
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return dns.rrset.from_text_list(
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rname, ttl, dns.rdataclass.IN, dns.rdatatype.SRV, rdata_list
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)
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def _gen_expected_uri_rrset(rname, uri_templates, servers, ttl=86400):
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rdata_list = [
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"{prio} {weight} {uri}".format(
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prio=prio,
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weight=weight,
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uri=uri_template.format(hostname=servername.make_absolute()),
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)
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for uri_template in uri_templates
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for prio, weight, servername in servers
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]
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return dns.rrset.from_text_list(
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rname, ttl, dns.rdataclass.IN, dns.rdatatype.URI, rdata_list
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)
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def _gen_expected_a_rrset(rname, servers, ttl=86400):
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return dns.rrset.from_text_list(rname, ttl, dns.rdataclass.IN,
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dns.rdatatype.A, servers)
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def _get_relative_weights(text):
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"""Takes location-show output and returns a list of percentages"""
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return re.findall(r"\d+.\d%", text)
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class TestDNSLocations(IntegrationTest):
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"""Simple test if SRV DNS records for IPA locations are generated properly
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Topology:
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* 3 servers (replica0 --- master --- replica1)
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replica0 with no CA, master with ADtrust installed later,
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replica1 with CA
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* 2 locations (prague, paris)
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"""
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num_replicas = 2
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topology = 'star'
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LOC_PRAGUE = u'prague'
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LOC_PARIS = u'paris'
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PRIO_HIGH = 0
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PRIO_LOW = 50
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WEIGHT = 100
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@classmethod
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def install(cls, mh):
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cls.domain = DNSName(cls.master.domain.name).make_absolute()
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tasks.install_master(cls.master, setup_dns=True)
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tasks.install_replica(cls.master, cls.replicas[0], setup_dns=True,
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setup_ca=False)
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tasks.install_replica(cls.master, cls.replicas[1], setup_dns=True,
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setup_ca=True)
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for host in (cls.master, cls.replicas[0], cls.replicas[1]):
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ldap = host.ldap_connect()
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tasks.wait_for_replication(ldap)
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# give time to named to retrieve new records
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time.sleep(20)
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@classmethod
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def delete_update_system_records(cls, rnames):
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filepath = '/tmp/ipa.nsupdate'
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cls.master.run_command([
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'ipa', 'dns-update-system-records', '--dry-run', '--out', filepath
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])
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for name in rnames:
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cls.master.run_command([
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'ipa', 'dnsrecord-del', str(cls.domain), str(name),
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'--del-all'])
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time.sleep(15)
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# allow unauthenticates nsupdate (no need to testing authentication)
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cls.master.run_command([
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'ipa', 'dnszone-mod', str(cls.domain),
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'--update-policy=grant * wildcard *;'
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], raiseonerr=False)
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cls.master.run_command(['nsupdate', '-g', filepath])
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time.sleep(15)
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def _test_A_rec_against_server(self, server_ip, domain, expected_servers,
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rec_list=IPA_CA_A_REC):
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for rname in rec_list:
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name_abs = rname.derelativize(domain)
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expected = _gen_expected_a_rrset(name_abs, expected_servers)
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query = resolve_records_from_server(
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name_abs, 'A', server_ip)
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assert expected == query, (
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"Expected and received DNS data do not match on server "
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"with IP: '{}' for name '{}' (expected:\n{}\ngot:\n{})".
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format(server_ip, name_abs, expected, query))
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def _test_SRV_rec_against_server(self, server_ip, domain, expected_servers,
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rec_list=IPA_DEFAULT_MASTER_SRV_REC):
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for rname, port in rec_list:
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name_abs = rname.derelativize(domain)
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expected = _gen_expected_srv_rrset(
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name_abs, port, expected_servers)
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query = resolve_records_from_server(
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name_abs, 'SRV', server_ip)
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assert expected == query, (
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"Expected and received DNS data do not match on server "
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"with IP: '{}' for name '{}' (expected:\n{}\ngot:\n{})".
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format(server_ip, name_abs, expected, query))
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def _test_URI_rec_against_server(self, server_ip, domain, expected_servers,
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rec_list=IPA_DEFAULT_MASTER_URI_REC):
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for rname, uri_templates in rec_list:
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name_abs = rname.derelativize(domain)
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expected = _gen_expected_uri_rrset(
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name_abs, uri_templates, expected_servers)
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query = resolve_records_from_server(
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name_abs, 'URI', server_ip)
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assert expected == query, (
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"Expected and received DNS data do not match on server "
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"with IP: '{}' for name '{}' (expected:\n{}\ngot:\n{})".
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format(server_ip, name_abs, expected, query))
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def test_without_locations(self):
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"""Servers are not in locations, this tests if basic system records
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are generated properly"""
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expected_servers = (
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.master.hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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for ip in (self.master.ip, self.replicas[0].ip, self.replicas[1].ip):
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self._test_SRV_rec_against_server(ip, self.domain,
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expected_servers)
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self._test_URI_rec_against_server(
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ip, self.domain, expected_servers
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)
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def test_nsupdate_without_locations(self):
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"""Test nsupdate file generated by dns-update-system-records
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Remove all records and the use nsupdate to restore state and test if
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all record are there as expected"""
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self.delete_update_system_records(rnames=(r[0] for r in
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IPA_DEFAULT_MASTER_SRV_REC))
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self.test_without_locations()
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def test_one_replica_in_location(self):
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"""Put one replica to location and test if records changed properly
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"""
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# create location prague, replica0 --> location prague
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self.master.run_command([
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'ipa', 'location-add', self.LOC_PRAGUE
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])
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self.master.run_command([
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'ipa', 'server-mod', self.replicas[0].hostname,
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'--location', self.LOC_PRAGUE
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])
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tasks.restart_named(self.replicas[0])
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servers_without_loc = (
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.master.hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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domain_without_loc = DNSName(self.master.domain.name).make_absolute()
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servers_prague_loc = (
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.master.hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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domain_prague_loc = (
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DNSName('{}._locations'.format(self.LOC_PRAGUE)) +
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DNSName(self.master.domain.name).make_absolute()
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)
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self._test_SRV_rec_against_server(
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self.replicas[0].ip, domain_prague_loc, servers_prague_loc
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)
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self._test_URI_rec_against_server(
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self.replicas[0].ip, domain_prague_loc, servers_prague_loc
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)
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for ip in (self.master.ip, self.replicas[1].ip):
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self._test_SRV_rec_against_server(
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ip, domain_without_loc, servers_without_loc
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)
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self._test_URI_rec_against_server(
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ip, domain_without_loc, servers_without_loc
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)
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def test_two_replicas_in_location(self):
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"""Put second replica to location and test if records changed properly
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"""
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# create location paris, replica1 --> location prague
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self.master.run_command(['ipa', 'location-add', self.LOC_PARIS])
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self.master.run_command([
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'ipa', 'server-mod', self.replicas[1].hostname, '--location',
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self.LOC_PARIS])
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tasks.restart_named(self.replicas[1])
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servers_without_loc = (
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.master.hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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domain_without_loc = DNSName(self.master.domain.name).make_absolute()
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servers_prague_loc = (
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.master.hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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domain_prague_loc = (
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DNSName('{}._locations'.format(self.LOC_PRAGUE)) + DNSName(
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self.master.domain.name).make_absolute())
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servers_paris_loc = (
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.master.hostname)),
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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domain_paris_loc = (
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DNSName('{}._locations'.format(self.LOC_PARIS)) + DNSName(
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self.master.domain.name).make_absolute())
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self._test_SRV_rec_against_server(
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self.replicas[0].ip, domain_prague_loc, servers_prague_loc
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)
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self._test_URI_rec_against_server(
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self.replicas[0].ip, domain_prague_loc, servers_prague_loc
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)
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self._test_SRV_rec_against_server(
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self.replicas[1].ip, domain_paris_loc, servers_paris_loc
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)
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self._test_URI_rec_against_server(
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self.replicas[1].ip, domain_paris_loc, servers_paris_loc
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)
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self._test_SRV_rec_against_server(
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self.master.ip, domain_without_loc, servers_without_loc
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)
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self._test_URI_rec_against_server(
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self.master.ip, domain_without_loc, servers_without_loc
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)
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def test_all_servers_in_location(self):
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"""Put master (as second server) to location and test if records
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changed properly
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"""
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# master --> location paris
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self.master.run_command([
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'ipa', 'server-mod', self.master.hostname, '--location',
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self.LOC_PARIS])
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tasks.restart_named(self.master)
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servers_prague_loc = (
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.master.hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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domain_prague_loc = (
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DNSName('{}._locations'.format(self.LOC_PRAGUE)) + DNSName(
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self.master.domain.name).make_absolute())
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servers_paris_loc = (
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.master.hostname)),
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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domain_paris_loc = (
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DNSName('{}._locations'.format(self.LOC_PARIS)) + DNSName(
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self.master.domain.name).make_absolute())
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self._test_SRV_rec_against_server(
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self.replicas[0].ip, domain_prague_loc, servers_prague_loc
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)
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self._test_URI_rec_against_server(
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self.replicas[0].ip, domain_prague_loc, servers_prague_loc
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)
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for ip in (self.replicas[1].ip, self.master.ip):
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self._test_SRV_rec_against_server(
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ip, domain_paris_loc, servers_paris_loc
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)
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self._test_URI_rec_against_server(
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ip, domain_paris_loc, servers_paris_loc
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)
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def test_change_weight(self):
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"""Change weight of master and test if records changed properly
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"""
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new_weight = 2000
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self.master.run_command([
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'ipa', 'server-mod', self.master.hostname, '--service-weight',
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str(new_weight)
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])
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# all servers must be restarted
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tasks.restart_named(self.master, self.replicas[0], self.replicas[1])
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servers_prague_loc = (
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(self.PRIO_LOW, new_weight, DNSName(self.master.hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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domain_prague_loc = (
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DNSName('{}._locations'.format(self.LOC_PRAGUE)) + DNSName(
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self.master.domain.name).make_absolute())
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servers_paris_loc = (
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(self.PRIO_HIGH, new_weight, DNSName(self.master.hostname)),
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(self.PRIO_LOW, self.WEIGHT, DNSName(self.replicas[0].hostname)),
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(self.PRIO_HIGH, self.WEIGHT, DNSName(self.replicas[1].hostname)),
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)
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domain_paris_loc = (
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DNSName('{}._locations'.format(self.LOC_PARIS)) + DNSName(
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self.master.domain.name).make_absolute())
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self._test_SRV_rec_against_server(
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self.replicas[0].ip, domain_prague_loc, servers_prague_loc
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)
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self._test_URI_rec_against_server(
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self.replicas[0].ip, domain_prague_loc, servers_prague_loc
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)
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for ip in (self.replicas[1].ip, self.master.ip):
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self._test_SRV_rec_against_server(
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ip, domain_paris_loc, servers_paris_loc
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)
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self._test_URI_rec_against_server(
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ip, domain_paris_loc, servers_paris_loc
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)
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|
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def test_change_weight_relative_zero_0(self):
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"""Change weight of one master and check on relative weight %
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"""
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new_weight = 0
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# Put all servers into one location
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self.master.run_command([
|
|
'ipa', 'server-mod', self.replicas[0].hostname, '--location',
|
|
self.LOC_PARIS])
|
|
|
|
# Modify one to have a weight of 0
|
|
result = self.master.run_command([
|
|
'ipa', 'server-mod', self.master.hostname, '--service-weight',
|
|
str(new_weight)
|
|
])
|
|
|
|
result = self.master.run_command([
|
|
'ipa', 'location-show', self.LOC_PARIS
|
|
])
|
|
weights = _get_relative_weights(result.stdout_text)
|
|
assert weights.count('0.1%') == 1
|
|
assert weights.count('50.0%') == 2
|
|
|
|
# The following three tests are name-sensitive so they run in
|
|
# a specific order. They use the paris location and depend on
|
|
# the existing values of the server location and weight to work
|
|
# properly
|
|
def test_change_weight_relative_zero_1(self):
|
|
"""Change all weights to zero and ensure no div by zero
|
|
"""
|
|
|
|
new_weight = 0
|
|
|
|
# Depends on order of test execution but all masters are now
|
|
# in LOC_PARIS and self.master has a weight of 0.
|
|
|
|
# Modify all replicas to have a weight of 0
|
|
for hostname in (self.replicas[0].hostname, self.replicas[1].hostname):
|
|
self.master.run_command([
|
|
'ipa', 'server-mod', hostname, '--service-weight',
|
|
str(new_weight)
|
|
])
|
|
|
|
result = self.master.run_command([
|
|
'ipa', 'location-show', self.LOC_PARIS
|
|
])
|
|
weights = _get_relative_weights(result.stdout_text)
|
|
assert weights.count('33.3%') == 3
|
|
|
|
def test_change_weight_relative_zero_2(self):
|
|
"""Change to mixed weight values and check percentages
|
|
"""
|
|
|
|
new_weight = 100
|
|
|
|
# Change master to be primary, replicas secondary
|
|
self.master.run_command([
|
|
'ipa', 'server-mod', self.master.hostname, '--service-weight',
|
|
'200'
|
|
])
|
|
for hostname in (self.replicas[0].hostname,
|
|
self.replicas[1].hostname):
|
|
self.master.run_command([
|
|
'ipa', 'server-mod', hostname, '--service-weight',
|
|
str(new_weight)
|
|
])
|
|
|
|
result = self.master.run_command([
|
|
'ipa', 'location-show', self.LOC_PARIS
|
|
])
|
|
weights = _get_relative_weights(result.stdout_text)
|
|
assert weights.count('50.0%') == 1
|
|
assert weights.count('25.0%') == 2
|
|
|
|
def test_restore_locations_and_weight(self):
|
|
"""Restore locations and weight. Not just for test purposes but also
|
|
for the following tests"""
|
|
|
|
for hostname in (self.master.hostname, self.replicas[0].hostname,
|
|
self.replicas[1].hostname):
|
|
self.master.run_command(['ipa', 'server-mod', hostname,
|
|
'--location='''])
|
|
|
|
self.master.run_command(['ipa', 'location-del', self.LOC_PRAGUE])
|
|
self.master.run_command(['ipa', 'location-del', self.LOC_PARIS])
|
|
|
|
self.master.run_command([
|
|
'ipa', 'server-mod', self.master.hostname, '--service-weight',
|
|
str(self.WEIGHT)
|
|
])
|
|
|
|
tasks.restart_named(self.master, self.replicas[0], self.replicas[1])
|
|
time.sleep(5)
|
|
|
|
def test_ipa_ca_records(self):
|
|
""" Test ipa-ca dns records with firstly removing the records and then
|
|
using the nsupdate generated by dns-update-system-records"""
|
|
self.delete_update_system_records(rnames=IPA_CA_A_REC)
|
|
|
|
expected_servers = (self.master.ip, self.replicas[1].ip)
|
|
|
|
ldap = self.master.ldap_connect()
|
|
tasks.wait_for_replication(ldap)
|
|
|
|
for ip in (self.master.ip, self.replicas[0].ip, self.replicas[1].ip):
|
|
self._test_A_rec_against_server(ip, self.domain, expected_servers)
|
|
|
|
|
|
def test_adtrust_system_records(self):
|
|
""" Test ADTrust dns records with firstly installing a trust then
|
|
removing the records and using the nsupdate generated by
|
|
dns-update-system-records."""
|
|
self.master.run_command(['ipa-adtrust-install', '-U',
|
|
'--enable-compat', '--netbios-name', 'IPA',
|
|
'-a', self.master.config.admin_password,
|
|
'--add-sids'])
|
|
# lets re-kinit after adtrust-install and restart named
|
|
tasks.kinit_admin(self.master)
|
|
tasks.restart_named(self.master)
|
|
time.sleep(5)
|
|
self.delete_update_system_records(rnames=(r[0] for r in
|
|
IPA_DEFAULT_ADTRUST_SRV_REC))
|
|
|
|
expected_servers = (
|
|
(self.PRIO_HIGH, self.WEIGHT, DNSName(self.master.hostname)),
|
|
)
|
|
|
|
ldap = self.master.ldap_connect()
|
|
tasks.wait_for_replication(ldap)
|
|
|
|
for ip in (self.master.ip, self.replicas[0].ip, self.replicas[1].ip):
|
|
self._test_SRV_rec_against_server(
|
|
ip, self.domain, expected_servers,
|
|
rec_list=IPA_DEFAULT_ADTRUST_SRV_REC)
|
|
|
|
def test_remove_replica_with_ca(self):
|
|
"""Test ipa-ca dns records after removing the replica with CA"""
|
|
tasks.uninstall_replica(self.master, self.replicas[1])
|
|
|
|
self.delete_update_system_records(rnames=IPA_CA_A_REC)
|
|
|
|
expected_servers = (self.master.ip,)
|
|
|
|
self._test_A_rec_against_server(self.master.ip, self.domain,
|
|
expected_servers)
|