VNFs/DPPD-PROX/helper-scripts/rapid/rapid_k8s_deployment.py

   1 ##
   2 ## Copyright (c) 2019-2020 Intel Corporation
   3 ##
   4 ## Licensed under the Apache License, Version 2.0 (the "License");
   5 ## you may not use this file except in compliance with the License.
   6 ## You may obtain a copy of the License at
   7 ##
   8 ##     http://www.apache.org/licenses/LICENSE-2.0
   9 ##
  10 ## Unless required by applicable law or agreed to in writing, software
  11 ## distributed under the License is distributed on an "AS IS" BASIS,
  12 ## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 ## See the License for the specific language governing permissions and
  14 ## limitations under the License.
  15 ##
  16
  17 import sys
  18 from kubernetes import client, config
  19 try:
  20     import configparser
  21 except ImportError:
  22     # Python 2.x fallback
  23     import ConfigParser as configparser
  24 import logging
  25 from logging import handlers
  26
  27 from rapid_k8s_pod import Pod
  28
  29 class K8sDeployment:
  30     """Deployment class to create containers for test execution in Kubernetes
  31     environment.
  32     """
  33     LOG_FILE_NAME = "createrapidk8s.log"
  34     SSH_PRIVATE_KEY = "./rapid_rsa_key"
  35     SSH_USER = "centos"
  36
  37     POD_YAML_TEMPLATE_FILE_NAME = "pod-rapid.yaml"
  38
  39     _log = None
  40     _create_config = None
  41     _runtime_config = None
  42     _total_number_of_pods = 0
  43     _pods = []
  44
  45     def __init__(self):
  46         # Configure logger
  47         self._log = logging.getLogger("k8srapid")
  48         self._log.setLevel(logging.DEBUG)
  49
  50         console_formatter = logging.Formatter("%(message)s")
  51         console_handler = logging.StreamHandler(sys.stdout)
  52         console_handler.setLevel(logging.DEBUG)
  53         console_handler.setFormatter(console_formatter)
  54
  55         file_formatter = logging.Formatter("%(asctime)s - "
  56                                            "%(levelname)s - "
  57                                            "%(message)s")
  58         file_handler = logging.handlers.RotatingFileHandler(self.LOG_FILE_NAME,
  59                                                             backupCount=10)
  60         file_handler.setLevel(logging.DEBUG)
  61         file_handler.setFormatter(file_formatter)
  62
  63         self._log.addHandler(file_handler)
  64         self._log.addHandler(console_handler)
  65
  66         # Initialize k8s plugin
  67         config.load_kube_config()
  68         Pod.k8s_CoreV1Api = client.CoreV1Api()
  69
  70     def load_create_config(self, config_file_name):
  71         """Read and parse configuration file for the test environment.
  72         """
  73         self._log.info("Loading configuration file %s", config_file_name)
  74         self._create_config = configparser.RawConfigParser()
  75         try:
  76             self._create_config.read(config_file_name)
  77         except Exception as e:
  78             self._log.error("Failed to read config file!\n%s\n" % e)
  79             return -1
  80
  81         # Now parse config file content
  82         # Parse [DEFAULT] section
  83         if self._create_config.has_option("DEFAULT", "total_number_of_pods"):
  84             self._total_number_of_pods = self._create_config.getint(
  85                 "DEFAULT", "total_number_of_pods")
  86         else:
  87             self._log.error("No option total_number_of_pods in DEFAULT section")
  88             return -1
  89
  90         self._log.debug("Total number of pods %d" % self._total_number_of_pods)
  91
  92         # Parse [PODx] sections
  93         for i in range(1, int(self._total_number_of_pods) + 1):
  94             # Search for POD name
  95             if self._create_config.has_option("POD%d" % i,
  96                                               "name"):
  97                 pod_name = self._create_config.get(
  98                     "POD%d" % i, "name")
  99             else:
 100                 pod_name = "pod-rapid-%d" % i
 101
 102             # Search for POD hostname
 103             if self._create_config.has_option("POD%d" % i,
 104                                               "nodeSelector_hostname"):
 105                 pod_nodeselector_hostname = self._create_config.get(
 106                     "POD%d" % i, "nodeSelector_hostname")
 107             else:
 108                 pod_nodeselector_hostname = None
 109
 110             # Search for POD dataplane static IP
 111             if self._create_config.has_option("POD%d" % i,
 112                                               "dp_ip"):
 113                 pod_dp_ip = self._create_config.get(
 114                     "POD%d" % i, "dp_ip")
 115             else:
 116                 pod_dp_ip = None
 117
 118             # Search for POD dataplane subnet
 119             if self._create_config.has_option("POD%d" % i,
 120                                               "dp_subnet"):
 121                 pod_dp_subnet = self._create_config.get(
 122                     "POD%d" % i, "dp_subnet")
 123             else:
 124                 pod_dp_subnet = "24"
 125
 126             pod = Pod(pod_name)
 127             pod.set_nodeselector(pod_nodeselector_hostname)
 128             pod.set_dp_ip(pod_dp_ip)
 129             pod.set_dp_subnet(pod_dp_subnet)
 130             pod.set_id(i)
 131
 132             # Add POD to the list of PODs which need to be created
 133             self._pods.append(pod)
 134
 135         return 0
 136
 137     def create_pods(self):
 138         """ Create test PODs and wait for them to start.
 139         Collect information for tests to run.
 140         """
 141         self._log.info("Creating PODs...")
 142
 143         # Create PODs using template from yaml file
 144         for pod in self._pods:
 145             self._log.info("Creating POD %s...", pod.get_name())
 146             pod.create_from_yaml(K8sDeployment.POD_YAML_TEMPLATE_FILE_NAME)
 147
 148         # Wait for PODs to start
 149         for pod in self._pods:
 150             pod.wait_for_start()
 151
 152         # Collect information from started PODs for test execution
 153         for pod in self._pods:
 154             pod.set_ssh_credentials(K8sDeployment.SSH_USER, K8sDeployment.SSH_PRIVATE_KEY)
 155             pod.get_sriov_dev_mac()
 156
 157     def save_runtime_config(self, config_file_name):
 158         self._log.info("Saving config %s for runrapid script...",
 159                        config_file_name)
 160         self._runtime_config = configparser.RawConfigParser()
 161
 162         # Section [DEFAULT]
 163 #        self._runtime_config.set("DEFAULT",
 164 #                                 "total_number_of_test_machines",
 165 #                                 self._total_number_of_pods)
 166
 167         # Section [ssh]
 168         self._runtime_config.add_section("ssh")
 169         self._runtime_config.set("ssh",
 170                                  "key",
 171                                  K8sDeployment.SSH_PRIVATE_KEY)
 172         self._runtime_config.set("ssh",
 173                                  "user",
 174                                  K8sDeployment.SSH_USER)
 175
 176         # Section [rapid]
 177         self._runtime_config.add_section("rapid")
 178         self._runtime_config.set("rapid",
 179                                  "total_number_of_machines",
 180                                  self._total_number_of_pods)
 181
 182         # Export information about each pod
 183         # Sections [Mx]
 184         for pod in self._pods:
 185             self._runtime_config.add_section("M%d" % pod.get_id())
 186             self._runtime_config.set("M%d" % pod.get_id(),
 187                                      "admin_ip", pod.get_admin_ip())
 188             self._runtime_config.set("M%d" % pod.get_id(),
 189                                      "dp_mac1", pod.get_dp_mac())
 190             self._runtime_config.set("M%d" % pod.get_id(),
 191                                      "dp_pci_dev", pod.get_dp_pci_dev())
 192             self._runtime_config.set("M%d" % pod.get_id(),
 193                                      "dp_ip1", pod.get_dp_ip() + "/" +
 194                                      pod.get_dp_subnet())
 195
 196         # Section [Varia]
 197         self._runtime_config.add_section("Varia")
 198         self._runtime_config.set("Varia",
 199                                  "vim",
 200                                  "kubernetes")
 201
 202         # Write runtime config file
 203         with open(config_file_name, "w") as file:
 204             self._runtime_config.write(file)
 205
 206     def delete_pods(self):
 207         for pod in self._pods:
 208             pod.terminate()