fuel/deploy/execution_environment.py

   1 ###############################################################################
   2 # Copyright (c) 2015 Ericsson AB and others.
   3 # szilard.cserey@ericsson.com
   4 # All rights reserved. This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 # http://www.apache.org/licenses/LICENSE-2.0
   8 ###############################################################################
   9
  10
  11 import yaml
  12 import io
  13 import os
  14
  15 import common
  16 from environments.libvirt_environment import LibvirtEnvironment
  17 from environments.virtual_fuel import VirtualFuel
  18
  19 exec_cmd = common.exec_cmd
  20 err = common.err
  21 log = common.log
  22 check_dir_exists = common.check_dir_exists
  23 check_file_exists = common.check_file_exists
  24 check_if_root = common.check_if_root
  25 ArgParser = common.ArgParser
  26
  27
  28 class ExecutionEnvironment(object):
  29
  30     def __new__(cls, storage_dir, pxe_bridge, dha_path, dea):
  31
  32         with io.open(dha_path) as yaml_file:
  33             dha_struct = yaml.load(yaml_file)
  34
  35         type = dha_struct['adapter']
  36
  37         root_dir = os.path.dirname(os.path.realpath(__file__))
  38
  39         if cls is ExecutionEnvironment:
  40             if type == 'libvirt':
  41                 return LibvirtEnvironment(storage_dir, dha_path, dea, root_dir)
  42
  43             if type == 'ipmi' or type == 'hp':
  44                 return VirtualFuel(storage_dir, pxe_bridge, dha_path, root_dir)
  45
  46         return super(ExecutionEnvironment, cls).__new__(cls)