apex/settings/deploy_settings.py

   1 ##############################################################################
   2 # Copyright (c) 2016 Michael Chapman (michapma@redhat.com) and others.
   3 #
   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
  13 from apex.common import utils
  14 from apex.common import constants
  15
  16 REQ_DEPLOY_SETTINGS = ['sdn_controller',
  17                        'odl_version',
  18                        'tacker',
  19                        'congress',
  20                        'dataplane',
  21                        'sfc',
  22                        'vpn',
  23                        'vpp',
  24                        'ceph',
  25                        'gluon',
  26                        'rt_kvm']
  27
  28 OPT_DEPLOY_SETTINGS = ['performance',
  29                        'vsperf',
  30                        'ceph_device',
  31                        'yardstick',
  32                        'dovetail',
  33                        'odl_vpp_routing_node',
  34                        'odl_vpp_netvirt',
  35                        'barometer',
  36                        'calipso']
  37
  38 VALID_ROLES = ['Controller', 'Compute', 'ObjectStorage']
  39 VALID_PERF_OPTS = ['kernel', 'nova', 'vpp', 'ovs']
  40 VALID_DATAPLANES = ['ovs', 'ovs_dpdk', 'fdio']
  41 VALID_ODL_VERSIONS = ['carbon', 'nitrogen', 'master']
  42
  43
  44 class DeploySettings(dict):
  45     """
  46     This class parses a APEX deploy settings yaml file into an object
  47     """
  48     def __init__(self, filename):
  49         if isinstance(filename, str):
  50             with open(filename, 'r') as deploy_settings_file:
  51                 init_dict = yaml.safe_load(deploy_settings_file)
  52         else:
  53             # assume input is a dict to build from
  54             init_dict = filename
  55
  56         super().__init__(init_dict)
  57         self._validate_settings()
  58
  59     def _validate_settings(self):
  60         """
  61         Validates the deploy settings file provided
  62
  63         DeploySettingsException will be raised if validation fails.
  64         """
  65
  66         if 'deploy_options' not in self:
  67             raise DeploySettingsException("No deploy options provided in"
  68                                           " deploy settings file")
  69         if 'global_params' not in self:
  70             raise DeploySettingsException("No global options provided in"
  71                                           " deploy settings file")
  72
  73         deploy_options = self['deploy_options']
  74         if not isinstance(deploy_options, dict):
  75             raise DeploySettingsException("deploy_options should be a list")
  76
  77         if ('gluon' in self['deploy_options'] and
  78            'vpn' in self['deploy_options']):
  79                 if (self['deploy_options']['gluon'] is True and
  80                    self['deploy_options']['vpn'] is False):
  81                         raise DeploySettingsException(
  82                             "Invalid deployment configuration: "
  83                             "If gluon is enabled, "
  84                             "vpn also needs to be enabled")
  85
  86         for setting, value in deploy_options.items():
  87             if setting not in REQ_DEPLOY_SETTINGS + OPT_DEPLOY_SETTINGS:
  88                 raise DeploySettingsException("Invalid deploy_option {} "
  89                                               "specified".format(setting))
  90             if setting == 'dataplane':
  91                 if value not in VALID_DATAPLANES:
  92                     planes = ' '.join(VALID_DATAPLANES)
  93                     raise DeploySettingsException(
  94                         "Invalid dataplane {} specified. Valid dataplanes:"
  95                         " {}".format(value, planes))
  96
  97         for req_set in REQ_DEPLOY_SETTINGS:
  98             if req_set not in deploy_options:
  99                 if req_set == 'dataplane':
 100                     self['deploy_options'][req_set] = 'ovs'
 101                 elif req_set == 'ceph':
 102                     self['deploy_options'][req_set] = True
 103                 elif req_set == 'odl_version':
 104                     self['deploy_options'][req_set] = \
 105                         constants.DEFAULT_ODL_VERSION
 106                 else:
 107                     self['deploy_options'][req_set] = False
 108             elif req_set == 'odl_version' and self['deploy_options'][
 109                     'odl_version'] not in VALID_ODL_VERSIONS:
 110                 raise DeploySettingsException(
 111                     "Invalid ODL version: {}".format(self[deploy_options][
 112                         'odl_version']))
 113
 114         if 'performance' in deploy_options:
 115             if not isinstance(deploy_options['performance'], dict):
 116                 raise DeploySettingsException("Performance deploy_option"
 117                                               "must be a dictionary.")
 118             for role, role_perf_sets in deploy_options['performance'].items():
 119                 if role not in VALID_ROLES:
 120                     raise DeploySettingsException("Performance role {}"
 121                                                   "is not valid, choose"
 122                                                   "from {}".format(
 123                                                       role,
 124                                                       " ".join(VALID_ROLES)
 125                                                   ))
 126
 127                 for key in role_perf_sets:
 128                     if key not in VALID_PERF_OPTS:
 129                         raise DeploySettingsException("Performance option {} "
 130                                                       "is not valid, choose"
 131                                                       "from {}".format(
 132                                                           key,
 133                                                           " ".join(
 134                                                               VALID_PERF_OPTS)
 135                                                       ))
 136
 137     def _dump_performance(self):
 138         """
 139         Creates performance settings string for bash consumption.
 140
 141         Output will be in the form of a list that can be iterated over in
 142         bash, with each string being the direct input to the performance
 143         setting script in the form <role> <category> <key> <value> to
 144         facilitate modification of the correct image.
 145         """
 146         bash_str = 'performance_options=(\n'
 147         deploy_options = self['deploy_options']
 148         for role, settings in deploy_options['performance'].items():
 149             for category, options in settings.items():
 150                 for key, value in options.items():
 151                     bash_str += "\"{} {} {} {}\"\n".format(role,
 152                                                            category,
 153                                                            key,
 154                                                            value)
 155         bash_str += ')\n'
 156         bash_str += '\n'
 157         bash_str += 'performance_roles=(\n'
 158         for role in self['deploy_options']['performance']:
 159             bash_str += role + '\n'
 160         bash_str += ')\n'
 161         bash_str += '\n'
 162
 163         return bash_str
 164
 165     def _dump_deploy_options_array(self):
 166         """
 167         Creates deploy settings array in bash syntax.
 168         """
 169         bash_str = ''
 170         for key, value in self['deploy_options'].items():
 171             if not isinstance(value, bool):
 172                 bash_str += "deploy_options_array[{}]=\"{}\"\n".format(key,
 173                                                                        value)
 174             else:
 175                 bash_str += "deploy_options_array[{}]={}\n".format(key,
 176                                                                    value)
 177         return bash_str
 178
 179
 180 class DeploySettingsException(Exception):
 181     def __init__(self, value):
 182         self.value = value
 183
 184     def __str__(self):
 185         return self.value