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#!/usr/bin/env python
# Copyright (c) 2017 Okinawa Open Laboratory 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
# pylint: disable=missing-docstring
"""vm controll module"""
import logging
import os
import time
import yaml
from functest.opnfv_tests.vnf.router.utilvnf import Utilvnf
from functest.opnfv_tests.vnf.router.vnf_controller.command_generator import (
CommandGenerator)
from functest.opnfv_tests.vnf.router.vnf_controller.ssh_client import (
SshClient)
class VmController(object):
"""vm controll class"""
logger = logging.getLogger(__name__)
def __init__(self, util_info):
self.logger.debug("initialize vm controller")
self.command_gen = CommandGenerator()
credentials = util_info["credentials"]
self.util = Utilvnf()
self.util.set_credentials(credentials["snaps_creds"])
with open(self.util.test_env_config_yaml) as file_fd:
test_env_config_yaml = yaml.safe_load(file_fd)
file_fd.close()
self.reboot_wait = test_env_config_yaml.get("general").get(
"reboot_wait")
self.command_wait = test_env_config_yaml.get("general").get(
"command_wait")
self.ssh_connect_timeout = test_env_config_yaml.get("general").get(
"ssh_connect_timeout")
self.ssh_connect_retry_count = test_env_config_yaml.get("general").get(
"ssh_connect_retry_count")
def command_gen_from_template(self, command_file_path, cmd_input_param):
(command_file_dir, command_file_name) = os.path.split(
command_file_path)
template = self.command_gen.load_template(command_file_dir,
command_file_name)
return self.command_gen.command_create(template,
cmd_input_param)
def config_vm(self, vm_info, test_cmd_file_path,
cmd_input_param, prompt_file_path):
ssh = self.connect_ssh_and_config_vm(vm_info,
test_cmd_file_path,
cmd_input_param,
prompt_file_path)
if ssh is None:
return False
ssh.close()
return True
def connect_ssh_and_config_vm(self, vm_info, test_cmd_file_path,
cmd_input_param, prompt_file_path):
key_filename = None
if "key_path" in vm_info:
key_filename = vm_info["key_path"]
ssh = SshClient(ip_address=vm_info["floating_ip"],
user=vm_info["user"],
password=vm_info["pass"],
key_filename=key_filename)
result = ssh.connect(self.ssh_connect_timeout,
self.ssh_connect_retry_count)
if not result:
self.logger.debug("try to vm reboot.")
self.util.reboot_vm(vm_info["vnf_name"])
time.sleep(self.reboot_wait)
result = ssh.connect(self.ssh_connect_timeout,
self.ssh_connect_retry_count)
if not result:
return None
(result, _) = self.command_create_and_execute(
ssh,
test_cmd_file_path,
cmd_input_param,
prompt_file_path)
if not result:
ssh.close()
return None
return ssh
def command_create_and_execute(self, ssh, test_cmd_file_path,
cmd_input_param, prompt_file_path):
prompt_file = open(prompt_file_path,
'r')
prompt = yaml.safe_load(prompt_file)
prompt_file.close()
config_mode_prompt = prompt["config_mode"]
commands = self.command_gen_from_template(test_cmd_file_path,
cmd_input_param)
return self.command_list_execute(ssh,
commands,
config_mode_prompt)
def command_list_execute(self, ssh, command_list, prompt):
res_data_list = []
for command in command_list:
self.logger.debug("Command : " + command)
(res, res_data) = self.command_execute(ssh,
command,
prompt)
self.logger.debug("Response : " + res_data)
res_data_list.append(res_data)
if not res:
return res, res_data_list
time.sleep(self.command_wait)
return True, res_data_list
def command_execute(self, ssh, command, prompt):
res_data = ssh.send(command, prompt)
if res_data is None:
self.logger.info("retry send command : " + command)
res_data = ssh.send(command,
prompt)
if not ssh.error_check(res_data):
return False, res_data
return True, res_data
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