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"""Integration test for the ntp module's ntp functionality.
This test specifies the use of the `ntp` NTP client, and ensures that the given
NTP servers are configured as expected.
(This is ported from ``tests/cloud_tests/testcases/modules/ntp_servers.yaml``,
``tests/cloud_tests/testcases/modules/ntp_pools.yaml``,
and ``tests/cloud_tests/testcases/modules/ntp_chrony.yaml``)
"""
import re
import yaml
import pytest
from tests.integration_tests.instances import IntegrationInstance
USER_DATA = """\
#cloud-config
ntp:
ntp_client: ntp
servers:
- 172.16.15.14
- 172.16.17.18
pools:
- 0.cloud-init.mypool
- 1.cloud-init.mypool
- 172.16.15.15
"""
EXPECTED_SERVERS = yaml.safe_load(USER_DATA)["ntp"]["servers"]
EXPECTED_POOLS = yaml.safe_load(USER_DATA)["ntp"]["pools"]
@pytest.mark.user_data(USER_DATA)
class TestNtpServers:
def test_ntp_installed(self, class_client: IntegrationInstance):
"""Test that `ntpd --version` succeeds, indicating installation."""
assert class_client.execute("ntpd --version").ok
def test_dist_config_file_is_empty(self,
class_client: IntegrationInstance):
"""Test that the distributed config file is empty.
(This test is skipped on all currently supported Ubuntu releases, so
may not actually be needed any longer.)
"""
if class_client.execute("test -e /etc/ntp.conf.dist").failed:
pytest.skip("/etc/ntp.conf.dist does not exist")
dist_file = class_client.read_from_file("/etc/ntp.conf.dist")
assert 0 == len(dist_file.strip().splitlines())
def test_ntp_entries(self, class_client: IntegrationInstance):
ntp_conf = class_client.read_from_file("/etc/ntp.conf")
for expected_server in EXPECTED_SERVERS:
assert re.search(
r"^server {} iburst".format(expected_server),
ntp_conf,
re.MULTILINE
)
for expected_pool in EXPECTED_POOLS:
assert re.search(
r"^pool {} iburst".format(expected_pool),
ntp_conf,
re.MULTILINE
)
def test_ntpq_servers(self, class_client: IntegrationInstance):
result = class_client.execute("ntpq -p -w -n")
assert result.ok
for expected_server_or_pool in [*EXPECTED_SERVERS, *EXPECTED_POOLS]:
assert expected_server_or_pool in result.stdout
CHRONY_DATA = """\
#cloud-config
ntp:
enabled: true
ntp_client: chrony
servers:
- 172.16.15.14
"""
@pytest.mark.user_data(CHRONY_DATA)
def test_chrony(client: IntegrationInstance):
if client.execute('test -f /etc/chrony.conf').ok:
chrony_conf = '/etc/chrony.conf'
else:
chrony_conf = '/etc/chrony/chrony.conf'
contents = client.read_from_file(chrony_conf)
assert 'server 172.16.15.14' in contents
TIMESYNCD_DATA = """\
#cloud-config
ntp:
enabled: true
ntp_client: systemd-timesyncd
servers:
- 172.16.15.14
"""
@pytest.mark.user_data(TIMESYNCD_DATA)
def test_timesyncd(client: IntegrationInstance):
contents = client.read_from_file(
'/etc/systemd/timesyncd.conf.d/cloud-init.conf'
)
assert 'NTP=172.16.15.14' in contents
EMPTY_NTP = """\
#cloud-config
ntp:
ntp_client: ntp
pools: []
servers: []
"""
@pytest.mark.user_data(EMPTY_NTP)
def test_empty_ntp(client: IntegrationInstance):
assert client.execute('ntpd --version').ok
assert client.execute('test -f /etc/ntp.conf.dist').failed
assert 'pool.ntp.org iburst' in client.execute(
'grep -v "^#" /etc/ntp.conf'
)
|
