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# Copyright 2020 gRPC authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Configure Traffic Director for different GRPC Proxyless.
This is intended as a debugging / local development helper and not executed
as a part of interop test suites.
Typical usage examples:
# Regular proxyless setup
python -m bin.run_td_setup --flagfile=config/local-dev.cfg
# Additional commands: cleanup, backend management, etc.
python -m bin.run_td_setup --flagfile=config/local-dev.cfg --cmd=cleanup
# PSM security setup options: mtls, tls, etc.
python -m bin.run_td_setup --flagfile=config/local-dev.cfg --security=mtls
# More information and usage options
python -m bin.run_td_setup --helpfull
"""
import logging
import uuid
from absl import app
from absl import flags
from framework import xds_flags
from framework import xds_k8s_flags
from framework.infrastructure import gcp
from framework.infrastructure import k8s
from framework.infrastructure import traffic_director
logger = logging.getLogger(__name__)
# Flags
_CMD = flags.DEFINE_enum('cmd',
default='create',
enum_values=[
'cycle', 'create', 'cleanup', 'backends-add',
'backends-cleanup'
],
help='Command')
_SECURITY = flags.DEFINE_enum('security',
default=None,
enum_values=[
'mtls', 'tls', 'plaintext', 'mtls_error',
'server_authz_error'
],
help='Configure TD with security')
flags.adopt_module_key_flags(xds_flags)
flags.adopt_module_key_flags(xds_k8s_flags)
def main(argv):
if len(argv) > 1:
raise app.UsageError('Too many command-line arguments.')
command = _CMD.value
security_mode = _SECURITY.value
project: str = xds_flags.PROJECT.value
network: str = xds_flags.NETWORK.value
namespace = xds_flags.NAMESPACE.value
# Test server
server_name = xds_flags.SERVER_NAME.value
server_port = xds_flags.SERVER_PORT.value
server_xds_host = xds_flags.SERVER_XDS_HOST.value
server_xds_port = xds_flags.SERVER_XDS_PORT.value
gcp_api_manager = gcp.api.GcpApiManager()
if security_mode is None:
td = traffic_director.TrafficDirectorManager(gcp_api_manager,
project=project,
resource_prefix=namespace,
network=network)
else:
td = traffic_director.TrafficDirectorSecureManager(
gcp_api_manager,
project=project,
resource_prefix=namespace,
network=network)
try:
if command in ('create', 'cycle'):
logger.info('Create mode')
if security_mode is None:
logger.info('No security')
td.setup_for_grpc(server_xds_host, server_xds_port)
elif security_mode == 'mtls':
logger.info('Setting up mtls')
td.setup_for_grpc(server_xds_host, server_xds_port)
td.setup_server_security(server_namespace=namespace,
server_name=server_name,
server_port=server_port,
tls=True,
mtls=True)
td.setup_client_security(server_namespace=namespace,
server_name=server_name,
tls=True,
mtls=True)
elif security_mode == 'tls':
logger.info('Setting up tls')
td.setup_for_grpc(server_xds_host, server_xds_port)
td.setup_server_security(server_namespace=namespace,
server_name=server_name,
server_port=server_port,
tls=True,
mtls=False)
td.setup_client_security(server_namespace=namespace,
server_name=server_name,
tls=True,
mtls=False)
elif security_mode == 'plaintext':
logger.info('Setting up plaintext')
td.setup_for_grpc(server_xds_host, server_xds_port)
td.setup_server_security(server_namespace=namespace,
server_name=server_name,
server_port=server_port,
tls=False,
mtls=False)
td.setup_client_security(server_namespace=namespace,
server_name=server_name,
tls=False,
mtls=False)
elif security_mode == 'mtls_error':
# Error case: server expects client mTLS cert,
# but client configured only for TLS
logger.info('Setting up mtls_error')
td.setup_for_grpc(server_xds_host, server_xds_port)
td.setup_server_security(server_namespace=namespace,
server_name=server_name,
server_port=server_port,
tls=True,
mtls=True)
td.setup_client_security(server_namespace=namespace,
server_name=server_name,
tls=True,
mtls=False)
elif security_mode == 'server_authz_error':
# Error case: client does not authorize server
# because of mismatched SAN name.
logger.info('Setting up mtls_error')
td.setup_for_grpc(server_xds_host, server_xds_port)
# Regular TLS setup, but with client policy configured using
# intentionality incorrect server_namespace.
td.setup_server_security(server_namespace=namespace,
server_name=server_name,
server_port=server_port,
tls=True,
mtls=False)
incorrect_namespace = f'incorrect-namespace-{uuid.uuid4().hex}'
td.setup_client_security(server_namespace=incorrect_namespace,
server_name=server_name,
tls=True,
mtls=False)
logger.info('Works!')
except Exception: # noqa pylint: disable=broad-except
logger.exception('Got error during creation')
if command in ('cleanup', 'cycle'):
logger.info('Cleaning up')
td.cleanup(force=True)
if command == 'backends-add':
logger.info('Adding backends')
k8s_api_manager = k8s.KubernetesApiManager(
xds_k8s_flags.KUBE_CONTEXT.value)
k8s_namespace = k8s.KubernetesNamespace(k8s_api_manager, namespace)
neg_name, neg_zones = k8s_namespace.get_service_neg(
server_name, server_port)
td.load_backend_service()
td.backend_service_add_neg_backends(neg_name, neg_zones)
td.wait_for_backends_healthy_status()
# TODO(sergiitk): wait until client reports rpc health
elif command == 'backends-cleanup':
td.load_backend_service()
td.backend_service_remove_all_backends()
if __name__ == '__main__':
app.run(main)
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