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#!/usr/bin/env python
# Copyright (c) 2020 Orange and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
"""Deploy and Test Clearwater vIMS using Kubernetes"""
import logging
import time
import re
import yaml
from kubernetes import client
from kubernetes import config
from kubernetes import watch
import pkg_resources
from xtesting.core import testcase
class Vims(testcase.TestCase):
"""Deploy and Test Clearwater vIMS using Kubernetes
It leverage on the Python kubernetes client to apply operation proposed by
clearwater-docker.
See https://github.com/Metaswitch/clearwater-docker for more details
"""
namespace = 'default'
zone = 'default.svc.cluster.local'
watch_timeout = 1200
metadata_name = "env-vars"
test_image_name = "ollivier/clearwater-live-test:latest"
test_container_name = "live-test"
__logger = logging.getLogger(__name__)
deployment_list = [
"astaire", "bono", "cassandra", "chronos", "ellis", "etcd", "homer",
"homestead", "homestead-prov", "ralf", "sprout"]
def __init__(self, **kwargs):
super(Vims, self).__init__(**kwargs)
config.load_kube_config()
self.corev1 = client.CoreV1Api()
self.appsv1 = client.AppsV1Api()
def deploy_vnf(self):
"""Deploy vIMS as proposed by clearwater-docker
It leverages on unofficial Clearwater dockers as proposed in the
documentation.
See https://github.com/Metaswitch/clearwater-docker for more details
"""
metadata = client.V1ObjectMeta(
name=self.metadata_name, namespace=self.namespace)
body = client.V1ConfigMap(
metadata=metadata,
data={"ADDITIONAL_SHARED_CONFIG": "", "ZONE": self.zone})
api_response = self.corev1.create_namespaced_config_map(
self.namespace, body=body)
self.__logger.debug("create_namespaced_config_map: %s", api_response)
for deployment in self.deployment_list:
with open(pkg_resources.resource_filename(
'functest_kubernetes',
'ims/{}-depl.yaml'.format(deployment))) as yfile:
body = yaml.safe_load(yfile)
resp = self.appsv1.create_namespaced_deployment(
body=body, namespace="default")
self.__logger.info("Deployment %s created", resp.metadata.name)
self.__logger.debug(
"create_namespaced_deployment: %s", api_response)
for service in self.deployment_list:
with open(pkg_resources.resource_filename(
'functest_kubernetes',
'ims/{}-svc.yaml'.format(service))) as yfile:
body = yaml.safe_load(yfile)
resp = self.corev1.create_namespaced_service(
body=body, namespace="default")
self.__logger.info("Service %s created", resp.metadata.name)
self.__logger.debug(
"create_namespaced_service: %s", api_response)
status = self.deployment_list.copy()
watch_deployment = watch.Watch()
for event in watch_deployment.stream(
func=self.appsv1.list_namespaced_deployment,
namespace=self.namespace, timeout_seconds=self.watch_timeout):
if event["object"].status.ready_replicas == 1:
if event['object'].metadata.name in status:
status.remove(event['object'].metadata.name)
self.__logger.info(
"%s started in %0.2f sec",
event['object'].metadata.name,
time.time()-self.start_time)
if not status:
watch_deployment.stop()
self.result = 1/2 * 100
def test_vnf(self):
"""Test vIMS as proposed by clearwater-live-test
It leverages on an unofficial Clearwater docker to allow testing from
the Kubernetes cluster.
See https://github.com/Metaswitch/clearwater-live-test for more details
"""
container = client.V1Container(
name=self.test_container_name, image=self.test_image_name)
spec = client.V1PodSpec(containers=[container], restart_policy="Never")
metadata = client.V1ObjectMeta(name=self.test_container_name)
body = client.V1Pod(metadata=metadata, spec=spec)
api_response = self.corev1.create_namespaced_pod(self.namespace, body)
watch_deployment = watch.Watch()
for event in watch_deployment.stream(
func=self.corev1.list_namespaced_pod,
namespace=self.namespace, timeout_seconds=self.watch_timeout):
if event["object"].metadata.name == self.test_container_name:
if (event["object"].status.phase == 'Succeeded'
or event["object"].status.phase == 'Error'):
watch_deployment.stop()
api_response = self.corev1.read_namespaced_pod_log(
name=self.test_container_name, namespace=self.namespace)
self.__logger.info(api_response)
vims_test_result = {}
try:
grp = re.search(
r'^(\d+) failures out of (\d+) tests run.*\n'
r'(\d+) tests skipped$', api_response,
re.MULTILINE | re.DOTALL)
assert grp
vims_test_result["failures"] = int(grp.group(1))
vims_test_result["total"] = int(grp.group(2))
vims_test_result["skipped"] = int(grp.group(3))
vims_test_result['passed'] = (
int(grp.group(2)) - int(grp.group(3)) - int(grp.group(1)))
if vims_test_result['total'] - vims_test_result['skipped'] > 0:
vnf_test_rate = vims_test_result['passed'] / (
vims_test_result['total'] - vims_test_result['skipped'])
else:
vnf_test_rate = 0
self.result += 1/2 * 100 * vnf_test_rate
except Exception: # pylint: disable=broad-except
self.__logger.exception("Cannot parse live tests results")
def run(self, **kwargs):
self.start_time = time.time()
try:
self.deploy_vnf()
self.test_vnf()
except client.rest.ApiException:
self.__logger.exception("Cannot deploy and test vIms")
self.stop_time = time.time()
def clean(self):
try:
api_response = self.corev1.delete_namespaced_config_map(
name=self.metadata_name, namespace=self.namespace)
self.__logger.debug(
"delete_namespaced_config_map: %s", api_response)
except client.rest.ApiException:
pass
try:
api_response = self.corev1.delete_namespaced_pod(
name=self.test_container_name, namespace=self.namespace)
self.__logger.debug("delete_namespaced_pod: %s", api_response)
except client.rest.ApiException:
pass
for deployment in self.deployment_list:
try:
api_response = self.appsv1.delete_namespaced_deployment(
name=deployment, namespace=self.namespace)
self.__logger.debug(
"delete_namespaced_deployment: %s", api_response)
except client.rest.ApiException:
pass
try:
api_response = self.corev1.delete_namespaced_service(
name=deployment, namespace=self.namespace)
self.__logger.debug(
"delete_namespaced_service: %s", api_response)
except client.rest.ApiException:
pass
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