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				|  |  | +#!/usr/bin/env python2.7
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				|  |  | +# Copyright 2015-2016, Google Inc.
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				|  |  | +# All rights reserved.
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				|  |  | +#
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				|  |  | +# Redistribution and use in source and binary forms, with or without
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				|  |  | +# modification, are permitted provided that the following conditions are
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				|  |  | +# met:
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				|  |  | +#
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				|  |  | +#     * Redistributions of source code must retain the above copyright
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				|  |  | +# notice, this list of conditions and the following disclaimer.
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				|  |  | +#     * Redistributions in binary form must reproduce the above
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				|  |  | +# copyright notice, this list of conditions and the following disclaimer
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				|  |  | +# in the documentation and/or other materials provided with the
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				|  |  | +# distribution.
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				|  |  | +#     * Neither the name of Google Inc. nor the names of its
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				|  |  | +# contributors may be used to endorse or promote products derived from
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				|  |  | +# this software without specific prior written permission.
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				|  |  | +#
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				|  |  | +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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				|  |  | +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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				|  |  | +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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				|  |  | +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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				|  |  | +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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				|  |  | +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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				|  |  | +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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				|  |  | +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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				|  |  | +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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				|  |  | +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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				|  |  | +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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				|  |  | +import argparse
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				|  |  | +import datetime
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				|  |  | +import json
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				|  |  | +import os
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				|  |  | +import subprocess
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				|  |  | +import sys
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				|  |  | +import time
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				|  |  | +
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				|  |  | +stress_test_utils_dir = os.path.abspath(os.path.join(
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				|  |  | +    os.path.dirname(__file__), '../../gcp/stress_test'))
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				|  |  | +sys.path.append(stress_test_utils_dir)
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				|  |  | +from stress_test_utils import BigQueryHelper
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				|  |  | +
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				|  |  | +kubernetes_api_dir = os.path.abspath(os.path.join(
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				|  |  | +    os.path.dirname(__file__), '../../gcp/utils'))
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				|  |  | +sys.path.append(kubernetes_api_dir)
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				|  |  | +
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				|  |  | +import kubernetes_api
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				|  |  | +
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				|  |  | +
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				|  |  | +class GlobalSettings:
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				|  |  | +
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				|  |  | +  def __init__(self, gcp_project_id, build_docker_images,
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				|  |  | +               test_poll_interval_secs, test_duration_secs,
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				|  |  | +               kubernetes_proxy_port, dataset_id_prefix, summary_table_id,
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				|  |  | +               qps_table_id, pod_warmup_secs):
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				|  |  | +    self.gcp_project_id = gcp_project_id
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				|  |  | +    self.build_docker_images = build_docker_images
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				|  |  | +    self.test_poll_interval_secs = test_poll_interval_secs
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				|  |  | +    self.test_duration_secs = test_duration_secs
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				|  |  | +    self.kubernetes_proxy_port = kubernetes_proxy_port
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				|  |  | +    self.dataset_id_prefix = dataset_id_prefix
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				|  |  | +    self.summary_table_id = summary_table_id
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				|  |  | +    self.qps_table_id = qps_table_id
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				|  |  | +    self.pod_warmup_secs = pod_warmup_secs
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				|  |  | +
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				|  |  | +
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				|  |  | +class ClientTemplate:
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				|  |  | +  """ Contains all the common settings that are used by a stress client """
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				|  |  | +
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				|  |  | +  def __init__(self, name, client_image_path, metrics_client_image_path,
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				|  |  | +               metrics_port, wrapper_script_path, poll_interval_secs,
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				|  |  | +               client_args_dict, metrics_args_dict):
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				|  |  | +    self.name = name
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				|  |  | +    self.client_image_path = client_image_path
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				|  |  | +    self.metrics_client_image_path = metrics_client_image_path
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				|  |  | +    self.metrics_port = metrics_port
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				|  |  | +    self.wrapper_script_path = wrapper_script_path
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				|  |  | +    self.poll_interval_secs = poll_interval_secs
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				|  |  | +    self.client_args_dict = client_args_dict
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				|  |  | +    self.metrics_args_dict = metrics_args_dict
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				|  |  | +
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				|  |  | +
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				|  |  | +class ServerTemplate:
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				|  |  | +  """ Contains all the common settings used by a stress server """
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				|  |  | +
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				|  |  | +  def __init__(self, name, server_image_path, wrapper_script_path, server_port,
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				|  |  | +               server_args_dict):
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				|  |  | +    self.name = name
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				|  |  | +    self.server_image_path = server_image_path
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				|  |  | +    self.wrapper_script_path = wrapper_script_path
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				|  |  | +    self.server_port = server_port
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				|  |  | +    self.server_args_dict = server_args_dict
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				|  |  | +
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				|  |  | +
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				|  |  | +class DockerImage:
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				|  |  | +  """ Represents properties of a Docker image. Provides methods to build the
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				|  |  | +  image and push it to GKE registry
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				|  |  | +  """
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				|  |  | +
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				|  |  | +  def __init__(self, gcp_project_id, image_name, build_script_path,
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				|  |  | +               dockerfile_dir, build_type):
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				|  |  | +    """Args:
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				|  |  | +
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				|  |  | +      image_name: The docker image name
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				|  |  | +      tag_name: The additional tag name. This is the name used when pushing the
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				|  |  | +        docker image to GKE registry
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				|  |  | +      build_script_path: The path to the build script that builds this docker
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				|  |  | +      image
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				|  |  | +      dockerfile_dir: The name of the directory under
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				|  |  | +      '<grpc_root>/tools/dockerfile' that contains the dockerfile
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				|  |  | +    """
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				|  |  | +    self.image_name = image_name
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				|  |  | +    self.gcp_project_id = gcp_project_id
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				|  |  | +    self.build_script_path = build_script_path
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				|  |  | +    self.dockerfile_dir = dockerfile_dir
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				|  |  | +    self.build_type = build_type
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				|  |  | +    self.tag_name = self._make_tag_name(gcp_project_id, image_name)
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				|  |  | +
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				|  |  | +  def _make_tag_name(self, project_id, image_name):
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				|  |  | +    return 'gcr.io/%s/%s' % (project_id, image_name)
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				|  |  | +
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				|  |  | +  def build_image(self):
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				|  |  | +    print 'Building docker image: %s (tag: %s)' % (self.image_name,
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				|  |  | +                                                   self.tag_name)
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				|  |  | +    os.environ['INTEROP_IMAGE'] = self.image_name
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				|  |  | +    os.environ['INTEROP_IMAGE_REPOSITORY_TAG'] = self.tag_name
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				|  |  | +    os.environ['BASE_NAME'] = self.dockerfile_dir
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				|  |  | +    os.environ['BUILD_TYPE'] = self.build_type
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				|  |  | +    print 'DEBUG: path: ', self.build_script_path
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				|  |  | +    if subprocess.call(args=[self.build_script_path]) != 0:
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				|  |  | +      print 'Error in building the Docker image'
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				|  |  | +      return False
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				|  |  | +    return True
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				|  |  | +
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				|  |  | +  def push_to_gke_registry(self):
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				|  |  | +    cmd = ['gcloud', 'docker', 'push', self.tag_name]
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				|  |  | +    print 'Pushing %s to the GKE registry..' % self.tag_name
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				|  |  | +    if subprocess.call(args=cmd) != 0:
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				|  |  | +      print 'Error in pushing the image %s to the GKE registry' % self.tag_name
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				|  |  | +      return False
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				|  |  | +    return True
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				|  |  | +
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				|  |  | +
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				|  |  | +class ServerPodSpec:
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				|  |  | +  """ Contains the information required to launch server pods. """
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				|  |  | +
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				|  |  | +  def __init__(self, name, server_template, docker_image, num_instances):
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				|  |  | +    self.name = name
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				|  |  | +    self.template = server_template
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				|  |  | +    self.docker_image = docker_image
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				|  |  | +    self.num_instances = num_instances
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				|  |  | +
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				|  |  | +  def pod_names(self):
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				|  |  | +    """ Return a list of names of server pods to create. """
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				|  |  | +    return ['%s-%d' % (self.name, i) for i in range(1, self.num_instances + 1)]
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				|  |  | +
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				|  |  | +  def server_addresses(self):
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				|  |  | +    """ Return string of server addresses in the following format:
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				|  |  | +      '<server_pod_name_1>:<server_port>,<server_pod_name_2>:<server_port>...'
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				|  |  | +    """
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				|  |  | +    return ','.join(['%s:%d' % (pod_name, self.template.server_port)
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				|  |  | +                     for pod_name in self.pod_names()])
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				|  |  | +
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				|  |  | +
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				|  |  | +class ClientPodSpec:
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				|  |  | +  """ Contains the information required to launch client pods """
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				|  |  | +
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				|  |  | +  def __init__(self, name, client_template, docker_image, num_instances,
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				|  |  | +               server_addresses):
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				|  |  | +    self.name = name
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				|  |  | +    self.template = client_template
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				|  |  | +    self.docker_image = docker_image
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				|  |  | +    self.num_instances = num_instances
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				|  |  | +    self.server_addresses = server_addresses
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				|  |  | +
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				|  |  | +  def pod_names(self):
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				|  |  | +    """ Return a list of names of client pods to create """
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				|  |  | +    return ['%s-%d' % (self.name, i) for i in range(1, self.num_instances + 1)]
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				|  |  | +
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				|  |  | +  # The client args in the template do not have server addresses. This function
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				|  |  | +  # adds the server addresses and returns the updated client args
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				|  |  | +  def get_client_args_dict(self):
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				|  |  | +    args_dict = self.template.client_args_dict.copy()
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				|  |  | +    args_dict['server_addresses'] = self.server_addresses
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				|  |  | +    return args_dict
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				|  |  | +
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				|  |  | +
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				|  |  | +class Gke:
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				|  |  | +  """ Class that has helper methods to interact with GKE """
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				|  |  | +
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				|  |  | +  class KubernetesProxy:
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				|  |  | +    """Class to start a proxy on localhost to talk to the Kubernetes API server"""
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				|  |  | +
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				|  |  | +    def __init__(self, port):
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				|  |  | +      cmd = ['kubectl', 'proxy', '--port=%d' % port]
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				|  |  | +      self.p = subprocess.Popen(args=cmd)
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				|  |  | +      time.sleep(2)
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				|  |  | +      print '\nStarted kubernetes proxy on port: %d' % port
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				|  |  | +
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				|  |  | +    def __del__(self):
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				|  |  | +      if self.p is not None:
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				|  |  | +        print 'Shutting down Kubernetes proxy..'
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				|  |  | +        self.p.kill()
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				|  |  | +
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				|  |  | +  def __init__(self, project_id, run_id, dataset_id, summary_table_id,
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				|  |  | +               qps_table_id, kubernetes_port):
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				|  |  | +    self.project_id = project_id
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				|  |  | +    self.run_id = run_id
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				|  |  | +    self.dataset_id = dataset_id
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				|  |  | +    self.summary_table_id = summary_table_id
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				|  |  | +    self.qps_table_id = qps_table_id
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				|  |  | +
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				|  |  | +    # The environment variables we would like to pass to every pod (both client
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				|  |  | +    # and server) launched in GKE
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				|  |  | +    self.gke_env = {
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				|  |  | +        'RUN_ID': self.run_id,
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				|  |  | +        'GCP_PROJECT_ID': self.project_id,
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				|  |  | +        'DATASET_ID': self.dataset_id,
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				|  |  | +        'SUMMARY_TABLE_ID': self.summary_table_id,
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				|  |  | +        'QPS_TABLE_ID': self.qps_table_id
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				|  |  | +    }
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				|  |  | +
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				|  |  | +    self.kubernetes_port = kubernetes_port
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				|  |  | +    # Start kubernetes proxy
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				|  |  | +    self.kubernetes_proxy = Gke.KubernetesProxy(kubernetes_port)
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				|  |  | +
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				|  |  | +  def _args_dict_to_str(self, args_dict):
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				|  |  | +    return ' '.join('--%s=%s' % (k, args_dict[k]) for k in args_dict.keys())
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				|  |  | +
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				|  |  | +  def launch_servers(self, server_pod_spec):
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				|  |  | +    is_success = True
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				|  |  | +
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				|  |  | +    # The command to run inside the container is the wrapper script (which then
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				|  |  | +    # launches the actual server)
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				|  |  | +    container_cmd = server_pod_spec.template.wrapper_script_path
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				|  |  | +
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				|  |  | +    # The parameters to the wrapper script (defined in
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				|  |  | +    # server_pod_spec.template.wrapper_script_path) are are injected into the
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				|  |  | +    # container via environment variables
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				|  |  | +    server_env = self.gke_env.copy()
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				|  |  | +    server_env.update({
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				|  |  | +        'STRESS_TEST_IMAGE_TYPE': 'SERVER',
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				|  |  | +        'STRESS_TEST_IMAGE': server_pod_spec.template.server_image_path,
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				|  |  | +        'STRESS_TEST_ARGS_STR': self._args_dict_to_str(
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				|  |  | +            server_pod_spec.template.server_args_dict)
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				|  |  | +    })
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				|  |  | +
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				|  |  | +    for pod_name in server_pod_spec.pod_names():
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				|  |  | +      server_env['POD_NAME'] = pod_name
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				|  |  | +      print 'Creating server: %s' % pod_name
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				|  |  | +      is_success = kubernetes_api.create_pod_and_service(
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				|  |  | +          'localhost',
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				|  |  | +          self.kubernetes_port,
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				|  |  | +          'default',  # Use 'default' namespace
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				|  |  | +          pod_name,
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				|  |  | +          server_pod_spec.docker_image.tag_name,
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				|  |  | +          [server_pod_spec.template.server_port],  # Ports to expose on the pod
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				|  |  | +          [container_cmd],
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				|  |  | +          [],  # Args list is empty since we are passing all args via env variables
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				|  |  | +          server_env,
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				|  |  | +          True  # Headless = True for server to that GKE creates a DNS record for pod_name
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				|  |  | +      )
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				|  |  | +      if not is_success:
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				|  |  | +        print 'Error in launching server: %s' % pod_name
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				|  |  | +        break
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				|  |  | +
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				|  |  | +    if is_success:
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				|  |  | +      print 'Successfully created server(s)'
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				|  |  | +
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				|  |  | +    return is_success
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				|  |  | +
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				|  |  | +  def launch_clients(self, client_pod_spec):
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				|  |  | +    is_success = True
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				|  |  | +
 | 
	
		
			
				|  |  | +    # The command to run inside the container is the wrapper script (which then
 | 
	
		
			
				|  |  | +    # launches the actual stress client)
 | 
	
		
			
				|  |  | +    container_cmd = client_pod_spec.template.wrapper_script_path
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				|  |  | +
 | 
	
		
			
				|  |  | +    # The parameters to the wrapper script (defined in
 | 
	
		
			
				|  |  | +    # client_pod_spec.template.wrapper_script_path) are are injected into the
 | 
	
		
			
				|  |  | +    # container via environment variables
 | 
	
		
			
				|  |  | +    client_env = self.gke_env.copy()
 | 
	
		
			
				|  |  | +    client_env.update({
 | 
	
		
			
				|  |  | +        'STRESS_TEST_IMAGE_TYPE': 'CLIENT',
 | 
	
		
			
				|  |  | +        'STRESS_TEST_IMAGE': client_pod_spec.template.client_image_path,
 | 
	
		
			
				|  |  | +        'STRESS_TEST_ARGS_STR': self._args_dict_to_str(
 | 
	
		
			
				|  |  | +            client_pod_spec.get_client_args_dict()),
 | 
	
		
			
				|  |  | +        'METRICS_CLIENT_IMAGE':
 | 
	
		
			
				|  |  | +            client_pod_spec.template.metrics_client_image_path,
 | 
	
		
			
				|  |  | +        'METRICS_CLIENT_ARGS_STR': self._args_dict_to_str(
 | 
	
		
			
				|  |  | +            client_pod_spec.template.metrics_args_dict),
 | 
	
		
			
				|  |  | +        'POLL_INTERVAL_SECS': str(client_pod_spec.template.poll_interval_secs)
 | 
	
		
			
				|  |  | +    })
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    for pod_name in client_pod_spec.pod_names():
 | 
	
		
			
				|  |  | +      client_env['POD_NAME'] = pod_name
 | 
	
		
			
				|  |  | +      print 'Creating client: %s' % pod_name
 | 
	
		
			
				|  |  | +      is_success = kubernetes_api.create_pod_and_service(
 | 
	
		
			
				|  |  | +          'localhost',
 | 
	
		
			
				|  |  | +          self.kubernetes_port,
 | 
	
		
			
				|  |  | +          'default',  # default namespace,
 | 
	
		
			
				|  |  | +          pod_name,
 | 
	
		
			
				|  |  | +          client_pod_spec.docker_image.tag_name,
 | 
	
		
			
				|  |  | +          [client_pod_spec.template.metrics_port],  # Ports to expose on the pod
 | 
	
		
			
				|  |  | +          [container_cmd],
 | 
	
		
			
				|  |  | +          [],  # Empty args list since all args are passed via env variables
 | 
	
		
			
				|  |  | +          client_env,
 | 
	
		
			
				|  |  | +          False  # Client is not a headless service.
 | 
	
		
			
				|  |  | +      )
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      if not is_success:
 | 
	
		
			
				|  |  | +        print 'Error in launching client %s' % pod_name
 | 
	
		
			
				|  |  | +        break
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    if is_success:
 | 
	
		
			
				|  |  | +      print 'Successfully created all client(s)'
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    return is_success
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def _delete_pods(self, pod_name_list):
 | 
	
		
			
				|  |  | +    is_success = True
 | 
	
		
			
				|  |  | +    for pod_name in pod_name_list:
 | 
	
		
			
				|  |  | +      print 'Deleting %s' % pod_name
 | 
	
		
			
				|  |  | +      is_success = kubernetes_api.delete_pod_and_service(
 | 
	
		
			
				|  |  | +          'localhost',
 | 
	
		
			
				|  |  | +          self.kubernetes_port,
 | 
	
		
			
				|  |  | +          'default',  # default namespace
 | 
	
		
			
				|  |  | +          pod_name)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      if not is_success:
 | 
	
		
			
				|  |  | +        print 'Error in deleting pod %s' % pod_name
 | 
	
		
			
				|  |  | +        break
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    if is_success:
 | 
	
		
			
				|  |  | +      print 'Successfully deleted all pods'
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    return is_success
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def delete_servers(self, server_pod_spec):
 | 
	
		
			
				|  |  | +    return self._delete_pods(server_pod_spec.pod_names())
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def delete_clients(self, client_pod_spec):
 | 
	
		
			
				|  |  | +    return self._delete_pods(client_pod_spec.pod_names())
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +class Config:
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def __init__(self, config_filename, gcp_project_id):
 | 
	
		
			
				|  |  | +    print 'Loading configuration...'
 | 
	
		
			
				|  |  | +    config_dict = self._load_config(config_filename)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    self.global_settings = self._parse_global_settings(config_dict,
 | 
	
		
			
				|  |  | +                                                       gcp_project_id)
 | 
	
		
			
				|  |  | +    self.docker_images_dict = self._parse_docker_images(
 | 
	
		
			
				|  |  | +        config_dict, self.global_settings.gcp_project_id)
 | 
	
		
			
				|  |  | +    self.client_templates_dict = self._parse_client_templates(config_dict)
 | 
	
		
			
				|  |  | +    self.server_templates_dict = self._parse_server_templates(config_dict)
 | 
	
		
			
				|  |  | +    self.server_pod_specs_dict = self._parse_server_pod_specs(
 | 
	
		
			
				|  |  | +        config_dict, self.docker_images_dict, self.server_templates_dict)
 | 
	
		
			
				|  |  | +    self.client_pod_specs_dict = self._parse_client_pod_specs(
 | 
	
		
			
				|  |  | +        config_dict, self.docker_images_dict, self.client_templates_dict,
 | 
	
		
			
				|  |  | +        self.server_pod_specs_dict)
 | 
	
		
			
				|  |  | +    print 'Loaded Configuaration.'
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def _parse_global_settings(self, config_dict, gcp_project_id):
 | 
	
		
			
				|  |  | +    global_settings_dict = config_dict['globalSettings']
 | 
	
		
			
				|  |  | +    return GlobalSettings(gcp_project_id,
 | 
	
		
			
				|  |  | +                          global_settings_dict['buildDockerImages'],
 | 
	
		
			
				|  |  | +                          global_settings_dict['pollIntervalSecs'],
 | 
	
		
			
				|  |  | +                          global_settings_dict['testDurationSecs'],
 | 
	
		
			
				|  |  | +                          global_settings_dict['kubernetesProxyPort'],
 | 
	
		
			
				|  |  | +                          global_settings_dict['datasetIdNamePrefix'],
 | 
	
		
			
				|  |  | +                          global_settings_dict['summaryTableId'],
 | 
	
		
			
				|  |  | +                          global_settings_dict['qpsTableId'],
 | 
	
		
			
				|  |  | +                          global_settings_dict['podWarmupSecs'])
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def _parse_docker_images(self, config_dict, gcp_project_id):
 | 
	
		
			
				|  |  | +    """Parses the 'dockerImages' section of the config file and returns a
 | 
	
		
			
				|  |  | +    Dictionary of 'DockerImage' objects keyed by docker image names"""
 | 
	
		
			
				|  |  | +    docker_images_dict = {}
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    docker_config_dict = config_dict['dockerImages']
 | 
	
		
			
				|  |  | +    for image_name in docker_config_dict.keys():
 | 
	
		
			
				|  |  | +      build_script_path = docker_config_dict[image_name]['buildScript']
 | 
	
		
			
				|  |  | +      dockerfile_dir = docker_config_dict[image_name]['dockerFileDir']
 | 
	
		
			
				|  |  | +      build_type = docker_config_dict[image_name]['buildType']
 | 
	
		
			
				|  |  | +      docker_images_dict[image_name] = DockerImage(gcp_project_id, image_name,
 | 
	
		
			
				|  |  | +                                                   build_script_path,
 | 
	
		
			
				|  |  | +                                                   dockerfile_dir, build_type)
 | 
	
		
			
				|  |  | +    return docker_images_dict
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def _parse_client_templates(self, config_dict):
 | 
	
		
			
				|  |  | +    """Parses the 'clientTemplates' section of the config file and returns a
 | 
	
		
			
				|  |  | +    Dictionary of 'ClientTemplate' objects keyed by client template names.
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    Note: The 'baseTemplates' sub section of the config file contains templates
 | 
	
		
			
				|  |  | +    with default values  and the 'templates' sub section contains the actual
 | 
	
		
			
				|  |  | +    client templates (which refer to the base template name to use for default
 | 
	
		
			
				|  |  | +    values).
 | 
	
		
			
				|  |  | +    """
 | 
	
		
			
				|  |  | +    client_templates_dict = {}
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    templates_dict = config_dict['clientTemplates']['templates']
 | 
	
		
			
				|  |  | +    base_templates_dict = config_dict['clientTemplates'].get('baseTemplates',
 | 
	
		
			
				|  |  | +                                                             {})
 | 
	
		
			
				|  |  | +    for template_name in templates_dict.keys():
 | 
	
		
			
				|  |  | +      # temp_dict is a temporary dictionary that merges base template dictionary
 | 
	
		
			
				|  |  | +      # and client template dictionary (with client template dictionary values
 | 
	
		
			
				|  |  | +      # overriding base template values)
 | 
	
		
			
				|  |  | +      temp_dict = {}
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      base_template_name = templates_dict[template_name].get('baseTemplate')
 | 
	
		
			
				|  |  | +      if not base_template_name is None:
 | 
	
		
			
				|  |  | +        temp_dict = base_templates_dict[base_template_name].copy()
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      temp_dict.update(templates_dict[template_name])
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      # Create and add ClientTemplate object to the final client_templates_dict
 | 
	
		
			
				|  |  | +      client_templates_dict[template_name] = ClientTemplate(
 | 
	
		
			
				|  |  | +          template_name, temp_dict['clientImagePath'],
 | 
	
		
			
				|  |  | +          temp_dict['metricsClientImagePath'], temp_dict['metricsPort'],
 | 
	
		
			
				|  |  | +          temp_dict['wrapperScriptPath'], temp_dict['pollIntervalSecs'],
 | 
	
		
			
				|  |  | +          temp_dict['clientArgs'].copy(), temp_dict['metricsArgs'].copy())
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    return client_templates_dict
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def _parse_server_templates(self, config_dict):
 | 
	
		
			
				|  |  | +    """Parses the 'serverTemplates' section of the config file and returns a
 | 
	
		
			
				|  |  | +    Dictionary of 'serverTemplate' objects keyed by server template names.
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    Note: The 'baseTemplates' sub section of the config file contains templates
 | 
	
		
			
				|  |  | +    with default values  and the 'templates' sub section contains the actual
 | 
	
		
			
				|  |  | +    server templates (which refer to the base template name to use for default
 | 
	
		
			
				|  |  | +    values).
 | 
	
		
			
				|  |  | +    """
 | 
	
		
			
				|  |  | +    server_templates_dict = {}
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    templates_dict = config_dict['serverTemplates']['templates']
 | 
	
		
			
				|  |  | +    base_templates_dict = config_dict['serverTemplates'].get('baseTemplates',
 | 
	
		
			
				|  |  | +                                                             {})
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    for template_name in templates_dict.keys():
 | 
	
		
			
				|  |  | +      # temp_dict is a temporary dictionary that merges base template dictionary
 | 
	
		
			
				|  |  | +      # and server template dictionary (with server template dictionary values
 | 
	
		
			
				|  |  | +      # overriding base template values)
 | 
	
		
			
				|  |  | +      temp_dict = {}
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      base_template_name = templates_dict[template_name].get('baseTemplate')
 | 
	
		
			
				|  |  | +      if not base_template_name is None:
 | 
	
		
			
				|  |  | +        temp_dict = base_templates_dict[base_template_name].copy()
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      temp_dict.update(templates_dict[template_name])
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      # Create and add ServerTemplate object to the final server_templates_dict
 | 
	
		
			
				|  |  | +      server_templates_dict[template_name] = ServerTemplate(
 | 
	
		
			
				|  |  | +          template_name, temp_dict['serverImagePath'],
 | 
	
		
			
				|  |  | +          temp_dict['wrapperScriptPath'], temp_dict['serverPort'],
 | 
	
		
			
				|  |  | +          temp_dict['serverArgs'].copy())
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    return server_templates_dict
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def _parse_server_pod_specs(self, config_dict, docker_images_dict,
 | 
	
		
			
				|  |  | +                              server_templates_dict):
 | 
	
		
			
				|  |  | +    """Parses the 'serverPodSpecs' sub-section (under 'testMatrix' section) of
 | 
	
		
			
				|  |  | +    the config file and returns a Dictionary of 'ServerPodSpec' objects keyed
 | 
	
		
			
				|  |  | +    by server pod spec names"""
 | 
	
		
			
				|  |  | +    server_pod_specs_dict = {}
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    pod_specs_dict = config_dict['testMatrix'].get('serverPodSpecs', {})
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    for pod_name in pod_specs_dict.keys():
 | 
	
		
			
				|  |  | +      server_template_name = pod_specs_dict[pod_name]['serverTemplate']
 | 
	
		
			
				|  |  | +      docker_image_name = pod_specs_dict[pod_name]['dockerImage']
 | 
	
		
			
				|  |  | +      num_instances = pod_specs_dict[pod_name].get('numInstances', 1)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      # Create and add the ServerPodSpec object to the final
 | 
	
		
			
				|  |  | +      # server_pod_specs_dict
 | 
	
		
			
				|  |  | +      server_pod_specs_dict[pod_name] = ServerPodSpec(
 | 
	
		
			
				|  |  | +          pod_name, server_templates_dict[server_template_name],
 | 
	
		
			
				|  |  | +          docker_images_dict[docker_image_name], num_instances)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    return server_pod_specs_dict
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def _parse_client_pod_specs(self, config_dict, docker_images_dict,
 | 
	
		
			
				|  |  | +                              client_templates_dict, server_pod_specs_dict):
 | 
	
		
			
				|  |  | +    """Parses the 'clientPodSpecs' sub-section (under 'testMatrix' section) of
 | 
	
		
			
				|  |  | +    the config file and returns a Dictionary of 'ClientPodSpec' objects keyed
 | 
	
		
			
				|  |  | +    by client pod spec names"""
 | 
	
		
			
				|  |  | +    client_pod_specs_dict = {}
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    pod_specs_dict = config_dict['testMatrix'].get('clientPodSpecs', {})
 | 
	
		
			
				|  |  | +    for pod_name in pod_specs_dict.keys():
 | 
	
		
			
				|  |  | +      client_template_name = pod_specs_dict[pod_name]['clientTemplate']
 | 
	
		
			
				|  |  | +      docker_image_name = pod_specs_dict[pod_name]['dockerImage']
 | 
	
		
			
				|  |  | +      num_instances = pod_specs_dict[pod_name]['numInstances']
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      # Get the server addresses from the server pod spec object
 | 
	
		
			
				|  |  | +      server_pod_spec_name = pod_specs_dict[pod_name]['serverPodSpec']
 | 
	
		
			
				|  |  | +      server_addresses = server_pod_specs_dict[
 | 
	
		
			
				|  |  | +          server_pod_spec_name].server_addresses()
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      client_pod_specs_dict[pod_name] = ClientPodSpec(
 | 
	
		
			
				|  |  | +          pod_name, client_templates_dict[client_template_name],
 | 
	
		
			
				|  |  | +          docker_images_dict[docker_image_name], num_instances,
 | 
	
		
			
				|  |  | +          server_addresses)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    return client_pod_specs_dict
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  def _load_config(self, config_filename):
 | 
	
		
			
				|  |  | +    """Opens the config file and converts the Json text to Dictionary"""
 | 
	
		
			
				|  |  | +    if not os.path.isabs(config_filename):
 | 
	
		
			
				|  |  | +      raise Exception('Config objects expects an absolute file path. '
 | 
	
		
			
				|  |  | +                      'config file name passed: %s' % config_filename)
 | 
	
		
			
				|  |  | +    with open(config_filename) as config_file:
 | 
	
		
			
				|  |  | +      return json.load(config_file)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +def run_tests(config):
 | 
	
		
			
				|  |  | +  """ The main function that launches the stress tests """
 | 
	
		
			
				|  |  | +  # Build docker images and push to GKE registry
 | 
	
		
			
				|  |  | +  if config.global_settings.build_docker_images:
 | 
	
		
			
				|  |  | +    for name, docker_image in config.docker_images_dict.iteritems():
 | 
	
		
			
				|  |  | +      if not (docker_image.build_image() and
 | 
	
		
			
				|  |  | +              docker_image.push_to_gke_registry()):
 | 
	
		
			
				|  |  | +        return False
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  # Create a unique id for this run (Note: Using timestamp instead of UUID to
 | 
	
		
			
				|  |  | +  # make it easier to deduce the date/time of the run just by looking at the run
 | 
	
		
			
				|  |  | +  # run id. This is useful in debugging when looking at records in Biq query)
 | 
	
		
			
				|  |  | +  run_id = datetime.datetime.now().strftime('%Y_%m_%d_%H_%M_%S')
 | 
	
		
			
				|  |  | +  dataset_id = '%s_%s' % (config.global_settings.dataset_id_prefix, run_id)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  bq_helper = BigQueryHelper(run_id, '', '',
 | 
	
		
			
				|  |  | +                             config.global_settings.gcp_project_id, dataset_id,
 | 
	
		
			
				|  |  | +                             config.global_settings.summary_table_id,
 | 
	
		
			
				|  |  | +                             config.global_settings.qps_table_id)
 | 
	
		
			
				|  |  | +  bq_helper.initialize()
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  gke = Gke(config.global_settings.gcp_project_id, run_id, dataset_id,
 | 
	
		
			
				|  |  | +            config.global_settings.summary_table_id,
 | 
	
		
			
				|  |  | +            config.global_settings.qps_table_id,
 | 
	
		
			
				|  |  | +            config.global_settings.kubernetes_proxy_port)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  is_success = True
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  try:
 | 
	
		
			
				|  |  | +    print 'Launching servers..'
 | 
	
		
			
				|  |  | +    for name, server_pod_spec in config.server_pod_specs_dict.iteritems():
 | 
	
		
			
				|  |  | +      if not gke.launch_servers(server_pod_spec):
 | 
	
		
			
				|  |  | +        is_success = False  # is_success is checked in the 'finally' block
 | 
	
		
			
				|  |  | +        return False
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    print('Launched servers. Waiting for %d seconds for the server pods to be '
 | 
	
		
			
				|  |  | +          'fully online') % config.global_settings.pod_warmup_secs
 | 
	
		
			
				|  |  | +    time.sleep(config.global_settings.pod_warmup_secs)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    for name, client_pod_spec in config.client_pod_specs_dict.iteritems():
 | 
	
		
			
				|  |  | +      if not gke.launch_clients(client_pod_spec):
 | 
	
		
			
				|  |  | +        is_success = False  # is_success is checked in the 'finally' block
 | 
	
		
			
				|  |  | +        return False
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    print('Launched all clients. Waiting for %d seconds for the client pods to '
 | 
	
		
			
				|  |  | +          'be fully online') % config.global_settings.pod_warmup_secs
 | 
	
		
			
				|  |  | +    time.sleep(config.global_settings.pod_warmup_secs)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    start_time = datetime.datetime.now()
 | 
	
		
			
				|  |  | +    end_time = start_time + datetime.timedelta(
 | 
	
		
			
				|  |  | +        seconds=config.global_settings.test_duration_secs)
 | 
	
		
			
				|  |  | +    print 'Running the test until %s' % end_time.isoformat()
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    while True:
 | 
	
		
			
				|  |  | +      if datetime.datetime.now() > end_time:
 | 
	
		
			
				|  |  | +        print 'Test was run for %d seconds' % config.global_settings.test_duration_secs
 | 
	
		
			
				|  |  | +        break
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      # Check if either stress server or clients have failed (btw, the bq_helper
 | 
	
		
			
				|  |  | +      # monitors all the rows in the summary table and checks if any of them
 | 
	
		
			
				|  |  | +      # have a failure status)
 | 
	
		
			
				|  |  | +      if bq_helper.check_if_any_tests_failed():
 | 
	
		
			
				|  |  | +        is_success = False
 | 
	
		
			
				|  |  | +        print 'Some tests failed.'
 | 
	
		
			
				|  |  | +        break  # Don't 'return' here. We still want to call bq_helper to print qps/summary tables
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      # Tests running fine. Wait until next poll time to check the status
 | 
	
		
			
				|  |  | +      print 'Sleeping for %d seconds..' % config.global_settings.test_poll_interval_secs
 | 
	
		
			
				|  |  | +      time.sleep(config.global_settings.test_poll_interval_secs)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    # Print BiqQuery tables
 | 
	
		
			
				|  |  | +    bq_helper.print_qps_records()
 | 
	
		
			
				|  |  | +    bq_helper.print_summary_records()
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  finally:
 | 
	
		
			
				|  |  | +    # If there was a test failure, we should not delete the pods since they
 | 
	
		
			
				|  |  | +    # would contain useful debug information (logs, core dumps etc)
 | 
	
		
			
				|  |  | +    if is_success:
 | 
	
		
			
				|  |  | +      for name, server_pod_spec in config.server_pod_specs_dict.iteritems():
 | 
	
		
			
				|  |  | +        gke.delete_servers(server_pod_spec)
 | 
	
		
			
				|  |  | +      for name, client_pod_spec in config.client_pod_specs_dict.iteritems():
 | 
	
		
			
				|  |  | +        gke.delete_clients(client_pod_spec)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  return is_success
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +argp = argparse.ArgumentParser(
 | 
	
		
			
				|  |  | +    description='Launch stress tests in GKE',
 | 
	
		
			
				|  |  | +    formatter_class=argparse.ArgumentDefaultsHelpFormatter)
 | 
	
		
			
				|  |  | +argp.add_argument('--gcp_project_id',
 | 
	
		
			
				|  |  | +                  required=True,
 | 
	
		
			
				|  |  | +                  help='The Google Cloud Platform Project Id')
 | 
	
		
			
				|  |  | +argp.add_argument('--config_file',
 | 
	
		
			
				|  |  | +                  required=True,
 | 
	
		
			
				|  |  | +                  type=str,
 | 
	
		
			
				|  |  | +                  help='The test config file')
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +if __name__ == '__main__':
 | 
	
		
			
				|  |  | +  args = argp.parse_args()
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  config_filename = args.config_file
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  # Since we will be changing the current working directory to grpc root in the
 | 
	
		
			
				|  |  | +  # next step, we should check if the config filename path is a relative path
 | 
	
		
			
				|  |  | +  # (i.e a path relative to the current working directory) and if so, convert it
 | 
	
		
			
				|  |  | +  # to abosulte path
 | 
	
		
			
				|  |  | +  if not os.path.isabs(config_filename):
 | 
	
		
			
				|  |  | +    config_filename = os.path.abspath(config_filename)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  config = Config(config_filename, args.gcp_project_id)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  # Change current working directory to grpc root
 | 
	
		
			
				|  |  | +  # (This is important because all relative file paths in the config file are
 | 
	
		
			
				|  |  | +  # supposed to interpreted as relative to the GRPC root)
 | 
	
		
			
				|  |  | +  grpc_root = os.path.abspath(os.path.join(
 | 
	
		
			
				|  |  | +      os.path.dirname(sys.argv[0]), '../../..'))
 | 
	
		
			
				|  |  | +  os.chdir(grpc_root)
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  run_tests(config)
 |