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##
## Copyright (c) 2019-2020 Intel Corporation
##
## 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.
##
import sys
from kubernetes import client, config
try:
import configparser
except ImportError:
# Python 2.x fallback
import ConfigParser as configparser
import logging
from logging import handlers
from rapid_k8s_pod import Pod
class K8sDeployment:
"""Deployment class to create containers for test execution in Kubernetes
environment.
"""
LOG_FILE_NAME = "createrapidk8s.log"
SSH_PRIVATE_KEY = "./rapid_rsa_key"
SSH_USER = "centos"
POD_YAML_TEMPLATE_FILE_NAME = "pod-rapid.yaml"
_log = None
_create_config = None
_runtime_config = None
_total_number_of_pods = 0
_namespace = "rapid-testing"
_pods = []
def __init__(self):
# Configure logger
self._log = logging.getLogger("k8srapid")
self._log.setLevel(logging.DEBUG)
console_formatter = logging.Formatter("%(message)s")
console_handler = logging.StreamHandler(sys.stdout)
console_handler.setLevel(logging.DEBUG)
console_handler.setFormatter(console_formatter)
file_formatter = logging.Formatter("%(asctime)s - "
"%(levelname)s - "
"%(message)s")
file_handler = logging.handlers.RotatingFileHandler(self.LOG_FILE_NAME,
backupCount=10)
file_handler.setLevel(logging.DEBUG)
file_handler.setFormatter(file_formatter)
self._log.addHandler(file_handler)
self._log.addHandler(console_handler)
# Initialize k8s plugin
try:
config.load_kube_config()
except:
config.load_incluster_config()
Pod.k8s_CoreV1Api = client.CoreV1Api()
def load_create_config(self, config_file_name):
"""Read and parse configuration file for the test environment.
"""
self._log.info("Loading configuration file %s", config_file_name)
self._create_config = configparser.RawConfigParser()
try:
self._create_config.read(config_file_name)
except Exception as e:
self._log.error("Failed to read config file!\n%s\n" % e)
return -1
# Now parse config file content
# Parse [DEFAULT] section
if self._create_config.has_option("DEFAULT", "total_number_of_pods"):
self._total_number_of_pods = self._create_config.getint(
"DEFAULT", "total_number_of_pods")
else:
self._log.error("No option total_number_of_pods in DEFAULT section")
return -1
self._log.debug("Total number of pods %d" % self._total_number_of_pods)
if self._create_config.has_option("DEFAULT", "namespace"):
self._namespace = self._create_config.get(
"DEFAULT", "namespace")
else:
self._log.error("No option namespace in DEFAULT section")
return -1
self._log.debug("Using namespace %s" % self._total_number_of_pods)
# Parse [PODx] sections
for i in range(1, int(self._total_number_of_pods) + 1):
# Search for POD name
if self._create_config.has_option("POD%d" % i,
"name"):
pod_name = self._create_config.get(
"POD%d" % i, "name")
else:
pod_name = "pod-rapid-%d" % i
# Search for POD hostname
if self._create_config.has_option("POD%d" % i,
"nodeSelector_hostname"):
pod_nodeselector_hostname = self._create_config.get(
"POD%d" % i, "nodeSelector_hostname")
else:
pod_nodeselector_hostname = None
# Search for POD dataplane static IP
if self._create_config.has_option("POD%d" % i,
"dp_ip"):
pod_dp_ip = self._create_config.get(
"POD%d" % i, "dp_ip")
else:
pod_dp_ip = None
# Search for POD dataplane subnet
if self._create_config.has_option("POD%d" % i,
"dp_subnet"):
pod_dp_subnet = self._create_config.get(
"POD%d" % i, "dp_subnet")
else:
pod_dp_subnet = "24"
pod = Pod(pod_name, self._namespace)
pod.set_nodeselector(pod_nodeselector_hostname)
pod.set_dp_ip(pod_dp_ip)
pod.set_dp_subnet(pod_dp_subnet)
pod.set_id(i)
# Add POD to the list of PODs which need to be created
self._pods.append(pod)
return 0
def create_pods(self):
""" Create test PODs and wait for them to start.
Collect information for tests to run.
"""
self._log.info("Creating PODs...")
# Create PODs using template from yaml file
for pod in self._pods:
self._log.info("Creating POD %s...", pod.get_name())
pod.create_from_yaml(K8sDeployment.POD_YAML_TEMPLATE_FILE_NAME)
# Wait for PODs to start
for pod in self._pods:
pod.wait_for_start()
# Collect information from started PODs for test execution
for pod in self._pods:
pod.set_ssh_credentials(K8sDeployment.SSH_USER, K8sDeployment.SSH_PRIVATE_KEY)
pod.get_sriov_dev_mac()
def save_runtime_config(self, config_file_name):
self._log.info("Saving config %s for runrapid script...",
config_file_name)
self._runtime_config = configparser.RawConfigParser()
# Section [DEFAULT]
# self._runtime_config.set("DEFAULT",
# "total_number_of_test_machines",
# self._total_number_of_pods)
# Section [ssh]
self._runtime_config.add_section("ssh")
self._runtime_config.set("ssh",
"key",
K8sDeployment.SSH_PRIVATE_KEY)
self._runtime_config.set("ssh",
"user",
K8sDeployment.SSH_USER)
# Section [rapid]
self._runtime_config.add_section("rapid")
self._runtime_config.set("rapid",
"total_number_of_machines",
self._total_number_of_pods)
# Export information about each pod
# Sections [Mx]
for pod in self._pods:
self._runtime_config.add_section("M%d" % pod.get_id())
self._runtime_config.set("M%d" % pod.get_id(),
"admin_ip", pod.get_admin_ip())
self._runtime_config.set("M%d" % pod.get_id(),
"dp_mac1", pod.get_dp_mac())
self._runtime_config.set("M%d" % pod.get_id(),
"dp_pci_dev", pod.get_dp_pci_dev())
self._runtime_config.set("M%d" % pod.get_id(),
"dp_ip1", pod.get_dp_ip() + "/" +
pod.get_dp_subnet())
# Section [Varia]
self._runtime_config.add_section("Varia")
self._runtime_config.set("Varia",
"vim",
"kubernetes")
# Write runtime config file
with open(config_file_name, "w") as file:
self._runtime_config.write(file)
def delete_pods(self):
for pod in self._pods:
pod.terminate()
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