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#!/usr/bin/env python
"""Assess juju blocks prevent users from making changes and models"""
from __future__ import print_function
import argparse
import logging
import sys
from assess_min_version import (
JujuAssertionError
)
from deploy_stack import (
BootstrapManager,
deploy_dummy_stack,
)
from jujupy import EnvJujuClient1X
from utility import (
add_basic_testing_arguments,
configure_logging,
)
__metaclass__ = type
log = logging.getLogger("assess_block")
def make_block_list(client, disabled_commands):
"""Return a manually made list of blocks and their status
:param client: The client whose rules will be used.
:param disabled_commands: list of client.command_set_* elements to
include in simulated output.
"""
if isinstance(client, EnvJujuClient1X):
blocks = []
commands = [
client.command_set_destroy_model,
client.command_set_remove_object,
client.command_set_all]
for command in commands:
if command in disabled_commands:
blocks.append({
'message': '',
'enabled': True,
'block': command
})
else:
blocks.append({
'enabled': False,
'block': command
})
return blocks
if not disabled_commands:
return []
return [{'command-set': ','.join(disabled_commands)}]
def test_disabled(client, command, args, include_e=True):
"""Test if a command is disabled as expected"""
try:
if command == 'deploy':
client.deploy(args)
elif command == 'remove-service':
client.remove_service(args)
else:
client.juju(command, args, include_e=include_e)
raise JujuAssertionError()
except Exception:
pass
def assess_block_destroy_model(client, charm_series):
"""Test disabling the destroy-model command.
When "disable-command destroy-model" is set,
the model cannot be destroyed, but objects
can be added, related, and removed.
"""
client.disable_command(client.destroy_model_command)
block_list = client.list_disabled_commands()
if block_list != make_block_list(
client, [client.command_set_destroy_model]):
raise JujuAssertionError(block_list)
test_disabled(
client, client.destroy_model_command,
('-y', client.env.environment), include_e=False)
# Adding, relating, and removing are not blocked.
deploy_dummy_stack(client, charm_series)
def assess_block_remove_object(client, charm_series):
"""Test block remove-object
When "disable-command remove-object" is set,
objects can be added and related, but they
cannot be removed or the model/environment deleted.
"""
client.disable_command(client.command_set_remove_object)
block_list = client.list_disabled_commands()
if block_list != make_block_list(
client, [client.command_set_remove_object]):
raise JujuAssertionError(block_list)
test_disabled(
client, client.destroy_model_command,
('-y', client.env.environment), include_e=False)
# Adding and relating are not blocked.
deploy_dummy_stack(client, charm_series)
test_disabled(client, 'remove-service', 'dummy-source')
test_disabled(client, 'remove-unit', ('dummy-source/1',))
test_disabled(client, 'remove-relation', ('dummy-source', 'dummy-sink'))
def assess_block_all_changes(client, charm_series):
"""Test Block Functionality: block all-changes"""
client.juju('remove-relation', ('dummy-source', 'dummy-sink'))
client.disable_command(client.command_set_all)
block_list = client.list_disabled_commands()
if block_list != make_block_list(client, [client.command_set_all]):
raise JujuAssertionError(block_list)
test_disabled(client, 'add-relation', ('dummy-source', 'dummy-sink'))
test_disabled(client, 'unexpose', ('dummy-sink',))
test_disabled(client, 'remove-service', 'dummy-sink')
client.enable_command(client.command_set_all)
client.juju('unexpose', ('dummy-sink',))
client.disable_command(client.command_set_all)
test_disabled(client, 'expose', ('dummy-sink',))
client.enable_command(client.command_set_all)
client.remove_service('dummy-sink')
client.wait_for_started()
client.disable_command(client.command_set_all)
test_disabled(client, 'deploy', ('dummy-sink',))
test_disabled(
client, client.destroy_model_command,
('-y', client.env.environment), include_e=False)
def assess_unblock(client, type):
"""Test Block Functionality
unblock destroy-model/remove-object/all-changes."""
client.enable_command(type)
block_list = client.list_disabled_commands()
if block_list != make_block_list(client, []):
raise JujuAssertionError(block_list)
if type == client.destroy_model_command:
client.remove_service('dummy-source')
client.wait_for_started()
client.remove_service('dummy-sink')
client.wait_for_started()
def assess_block(client, charm_series):
"""Test Block Functionality:
block/unblock destroy-model/remove-object/all-changes.
"""
log.info('Test started')
block_list = client.list_disabled_commands()
client.wait_for_started()
expected_none_blocked = make_block_list(client, [])
if block_list != expected_none_blocked:
log.error('Controller is not in the expected starting state')
raise JujuAssertionError(
'Expected {}\nFound {}'.format(expected_none_blocked, block_list))
assess_block_destroy_model(client, charm_series)
assess_unblock(client, client.destroy_model_command)
assess_block_remove_object(client, charm_series)
assess_unblock(client, client.command_set_remove_object)
assess_block_all_changes(client, charm_series)
assess_unblock(client, client.command_set_all)
log.info('Test PASS')
def parse_args(argv):
"""Parse all arguments."""
parser = argparse.ArgumentParser(description="Test Block Functionality")
add_basic_testing_arguments(parser)
parser.set_defaults(series='trusty')
return parser.parse_args(argv)
def main(argv=None):
args = parse_args(argv)
configure_logging(args.verbose)
bs_manager = BootstrapManager.from_args(args)
with bs_manager.booted_context(args.upload_tools):
assess_block(bs_manager.client, bs_manager.series)
return 0
if __name__ == '__main__':
sys.exit(main())
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