def test_init_from_oslo_file_exists_different_name_placement_file_exists(
self, mock_log_error):
"""Tests a scenario where the [oslo_policy]/policy_file exists and
has a different name from the [placement]/policy_file and the
[placement]/policy_file exists so an error is logged.
"""
# Configure [oslo_policy]/policy_file and [placement]/policy_file with
# different names.
tempdir = self.useFixture(fixtures.TempDir())
oslo_name = os.path.join(tempdir.path, 'policy.yaml')
self.conf_fixture.config(group='oslo_policy', policy_file=oslo_name)
placement_name = os.path.join(tempdir.path, 'placement-policy.yaml')
self.conf_fixture.config(group='placement', policy_file=placement_name)
# Create the [oslo_policy]/policy_file.
with open(oslo_name, "w") as oslo_policy_file:
oslo_policy_file.write('# New oslo policy config.')
# Create the [placement]/policy_file.
with open(placement_name, "w") as placement_policy_file:
placement_policy_file.write('# Old placement policy file.')
config = self.conf_fixture.conf
enforcer = policy._get_enforcer(config)
self.assertEqual(config.oslo_policy.policy_file, enforcer.policy_file)
# An error should be logged since we're going to use the oslo policy
# file but there is a placement policy file with a different name that
# also exists.
mock_log_error.assert_called_once()
self.assertIn('you need to clean up your configuration file',
mock_log_error.call_args[0][0])
def test_modified_policy_reloads(self):
"""Creates a temporary placement-policy.yaml file and tests
authorizations against a fake rule between updates to the physical
policy file.
"""
tempdir = self.useFixture(fixtures.TempDir())
tmpfilename = os.path.join(tempdir.path, 'placement-policy.yaml')
self.conf_fixture.config(group='placement', policy_file=tmpfilename)
action = 'placement:test'
# Load the default action and rule (defaults to "any").
enforcer = policy._get_enforcer(self.conf_fixture.conf)
rule = oslo_policy.RuleDefault(action, '')
enforcer.register_default(rule)
# Now auth should work because the action is registered and anyone
# can perform the action.
policy.authorize(self.ctxt, action, self.target)
# Now update the policy file and reload it to disable the action
# from all users.
with open(tmpfilename, "w") as policyfile:
policyfile.write('"%s": "!"' % action)
enforcer.load_rules(force_reload=True)
self.assertRaises(exception.PolicyNotAuthorized, policy.authorize,
self.ctxt, action, self.target)
def test_init_from_oslo_policy_file_exists_same_policy_file_name(
self, mock_log_error):
"""Tests a scenario where the [oslo_policy]/policy_file exists and
is the same name as the [placement]/policy_file so no error is logged
since we'll use the file from oslo_policy config.
"""
# Configure [oslo_policy]/policy_file and [placement]/policy_file with
# the same name.
tempdir = self.useFixture(fixtures.TempDir())
tmpfilename = os.path.join(tempdir.path, 'policy.yaml')
self.conf_fixture.config(group='oslo_policy', policy_file=tmpfilename)
self.conf_fixture.config(group='placement', policy_file=tmpfilename)
# Create the [oslo_policy]/policy_file.
with open(tmpfilename, "w") as policyfile:
policyfile.write('# Assume upgrade with existing custom policy.')
config = self.conf_fixture.conf
policy._get_enforcer(config)
# Checking what the Enforcer is using for a policy file does not really
# matter too much since they are pointing at the same file, just make
# sure we did not log an error.
mock_log_error.assert_not_called()
def test_init_pick_policy_file_from_oslo_config_option(self):
"""Tests a scenario where the oslo policy enforcer in init pick
the policy file set in [oslo_policy]/policy_file config option.
"""
tempdir = self.useFixture(fixtures.TempDir())
tmpfilename = os.path.join(tempdir.path, 'policy.yaml')
self.conf_fixture.config(group='oslo_policy', policy_file=tmpfilename)
# Create the [oslo_policy]/policy_file.
with open(tmpfilename, "w") as policyfile:
policyfile.write('# Assume upgrade with existing custom policy.')
config = self.conf_fixture.conf
enforcer = policy._get_enforcer(config)
self.assertEqual(config.oslo_policy.policy_file, enforcer.policy_file)
def test_default_fallback_placement_policy_file_no_exist(self, mock_warn):
"""Tests that by default the policy enforcer will fallback to the
[placement]/policy_file when [oslo_policy]/policy_file does not
exist. In this case the placement policy file does not exist so no
warning about using it should be logged.
"""
# Make sure oslo_policy and placement use different policy_file
# defaults (the former uses policy.json, the latter uses policy.yaml).
config = self.conf_fixture.conf
self.assertNotEqual(config.oslo_policy.policy_file,
config.placement.policy_file)
enforcer = policy._get_enforcer(config)
self.assertEqual(config.placement.policy_file, enforcer.policy_file)
# There should not be a warning logged since the policy file does not
# actually exist.
mock_warn.assert_not_called()
def test_init_from_oslo_file_exists_different_name_no_placement_file(
self, mock_log_error):
"""Tests a scenario where the [oslo_policy]/policy_file exists and
has a different name from the [placement]/policy_file but the
[placement]/policy_file does not exist so no error is logged.
"""
# Configure [oslo_policy]/policy_file and [placement]/policy_file with
# different names.
tempdir = self.useFixture(fixtures.TempDir())
tmpfilename = os.path.join(tempdir.path, 'policy.yaml')
self.conf_fixture.config(group='oslo_policy', policy_file=tmpfilename)
self.conf_fixture.config(group='placement', policy_file='policy.json')
# Create the [oslo_policy]/policy_file.
with open(tmpfilename, "w") as policyfile:
policyfile.write('# Assume upgrade with existing custom policy.')
config = self.conf_fixture.conf
enforcer = policy._get_enforcer(config)
self.assertEqual(config.oslo_policy.policy_file, enforcer.policy_file)
# Though the policy file names are different, the placement version
# does not exist while the oslo policy one does so no error is logged.
mock_log_error.assert_not_called()
def test_default_fallback_placement_policy_file(self, mock_warn):
"""Tests that by default the policy enforcer will fallback to the
[placement]/policy_file when [oslo_policy]/policy_file does not
exist. In this case the plcaement policy file exists, like in the case
of using it to define custom rules, so a warning is logged.
"""
tempdir = self.useFixture(fixtures.TempDir())
tmpfilename = os.path.join(tempdir.path, 'policy.yaml')
self.conf_fixture.config(group='placement', policy_file=tmpfilename)
# We have to create the file before initializing the policy enforcer
# otherwise it falls back to using CONF.placement.policy_file. This
# can be removed when the deprecated CONF.placement.policy_file option
# is removed.
with open(tmpfilename, "w") as policyfile:
policyfile.write('# I would normally have custom rules in here.')
config = self.conf_fixture.conf
enforcer = policy._get_enforcer(config)
self.assertEqual(config.placement.policy_file, enforcer.policy_file)
# There should not be a warning logged since the policy file does not
# actually exist.
mock_warn.assert_called_once_with(
'[placement]/policy_file is deprecated. Use '
'[oslo_policy]/policy_file instead.')
