def setUp(self):
super().setUp()
# Ensure there's an initial DNS publication. Outside of tests this is
# guaranteed by a migration.
DNSPublication(source="Initial").save()
# Allow test-local changes to configuration.
self.useFixture(RegionConfigurationFixture())
# Immediately make DNS changes as they're needed.
self.patch(dns_config_module, "DNS_DEFER_UPDATES", False)
# Create a DNS server.
self.bind = self.useFixture(BINDServer())
# Use the dnspython resolver for at least some queries.
self.resolver = dns.resolver.Resolver()
self.resolver.nameservers = ["127.0.0.1"]
self.resolver.port = self.bind.config.port
patch_dns_config_path(self, self.bind.config.homedir)
# Use a random port for rndc.
patch_dns_rndc_port(self, allocate_ports("localhost")[0])
# This simulates what should happen when the package is
# installed:
# Create MAAS-specific DNS configuration files.
parser = ArgumentParser()
setup_dns.add_arguments(parser)
setup_dns.run(parser.parse_args([]))
# Register MAAS-specific DNS configuration files with the
# system's BIND instance.
parser = ArgumentParser()
get_named_conf.add_arguments(parser)
get_named_conf.run(
parser.parse_args(
["--edit", "--config-path", self.bind.config.conf_file]))
# Reload BIND.
self.bind.runner.rndc("reload")
def test_start_check_shutdown(self):
# The fixture correctly starts and stops BIND.
with BINDServer() as fixture:
try:
result = dig_call(fixture.config.port)
self.assertIn("Got answer", result)
except Exception:
# self.useFixture() is not being used because we want to
# handle the fixture's lifecycle, so we must also be
# responsible for propagating fixture details.
gather_details(fixture.getDetails(), self.getDetails())
raise
self.assertFalse(fixture.runner.is_running())
def test_config(self):
# The configuration can be passed in.
config = BINDServerResources()
fixture = self.useFixture(BINDServer(config))
self.assertIs(config, fixture.config)
