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"""Test user-overridable events.
This is currently limited to applying network config on BOOT events.
"""
import re
import pytest
import yaml
from tests.integration_tests.instances import IntegrationInstance
from tests.integration_tests.integration_settings import PLATFORM
def _add_dummy_bridge_to_netplan(client: IntegrationInstance):
# Update netplan configuration to ensure it doesn't change on reboot
netplan = yaml.safe_load(
client.execute("cat /etc/netplan/50-cloud-init.yaml")
)
# Just a dummy bridge to do nothing
try:
netplan["network"]["bridges"]["dummy0"] = {"dhcp4": False}
except KeyError:
netplan["network"]["bridges"] = {"dummy0": {"dhcp4": False}}
dumped_netplan = yaml.dump(netplan)
client.write_to_file("/etc/netplan/50-cloud-init.yaml", dumped_netplan)
@pytest.mark.skipif(
PLATFORM not in ["lxd_container", "lxd_vm", "ec2", "oci", "openstack"],
reason="Default boot events testing is datasource specific",
)
def test_boot_event_disabled_by_default(client: IntegrationInstance):
log = client.read_from_file("/var/log/cloud-init.log")
if "network config is disabled" in log:
pytest.skip("network config disabled. Test doesn't apply")
assert "Applying network configuration" in log
assert "dummy0" not in client.execute("ls /sys/class/net")
_add_dummy_bridge_to_netplan(client)
client.execute("rm /var/log/cloud-init.log")
client.restart()
log2 = client.read_from_file("/var/log/cloud-init.log")
if "cache invalid in datasource" in log2:
# Invalid cache will get cleared, meaning we'll create a new
# "instance" and apply networking config, so events aren't
# really relevant here
pytest.skip("Test only valid for existing instances")
# We attempt to apply network config twice on every boot.
# Ensure neither time works.
assert 2 == len(
re.findall(
r"Event Denied: scopes=\['network'\] EventType=boot[^-]", log2
)
)
assert 2 == log2.count(
"Event Denied: scopes=['network'] EventType=boot-legacy"
)
assert 2 == log2.count(
"No network config applied. Neither a new instance"
" nor datasource network update allowed"
)
assert "dummy0" in client.execute("ls /sys/class/net")
def _test_network_config_applied_on_reboot(client: IntegrationInstance):
log = client.read_from_file("/var/log/cloud-init.log")
if "network config is disabled" in log:
pytest.skip("network config disabled. Test doesn't apply")
assert "Applying network configuration" in log
assert "dummy0" not in client.execute("ls /sys/class/net")
_add_dummy_bridge_to_netplan(client)
client.execute('echo "" > /var/log/cloud-init.log')
client.restart()
log = client.read_from_file("/var/log/cloud-init.log")
if "cache invalid in datasource" in log:
# Invalid cache will get cleared, meaning we'll create a new
# "instance" and apply networking config, so events aren't
# really relevant here
pytest.skip("Test only valid for existing instances")
assert "Event Allowed: scope=network EventType=boot" in log
assert "Applying network configuration" in log
assert "dummy0" not in client.execute("ls /sys/class/net")
@pytest.mark.skipif(
PLATFORM not in ("azure", "gce"),
reason=(
f"{PLATFORM} doesn't support updates every boot event by default "
"(or hasn't been testing for it)."
),
)
def test_boot_event_enabled_by_default(client: IntegrationInstance):
_test_network_config_applied_on_reboot(client)
USER_DATA = """\
#cloud-config
updates:
network:
when: [boot]
"""
@pytest.mark.user_data(USER_DATA)
def test_boot_event_enabled(client: IntegrationInstance):
_test_network_config_applied_on_reboot(client)
|
