summaryrefslogtreecommitdiffstats
path: root/lib/python/apex/network_environment.py
blob: dd9530b8671dd25d3acff5eb3e470977756a685a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
##############################################################################
# Copyright (c) 2016 Tim Rozet (trozet@redhat.com) 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
##############################################################################

import yaml
import re
from .common.constants import (
    CONTROLLER,
    COMPUTE,
    ADMIN_NETWORK,
    TENANT_NETWORK,
    STORAGE_NETWORK,
    EXTERNAL_NETWORK,
    API_NETWORK,
    CONTROLLER_PRE,
    COMPUTE_PRE,
    PRE_CONFIG_DIR
)
from .network_settings import NetworkSettings

HEAT_NONE = 'OS::Heat::None'
PORTS = '/ports'
# Resources defined by <resource name>: <prefix>
EXTERNAL_RESOURCES = {'OS::TripleO::Network::External': None,
                      'OS::TripleO::Network::Ports::ExternalVipPort': PORTS,
                      'OS::TripleO::Controller::Ports::ExternalPort': PORTS,
                      'OS::TripleO::Compute::Ports::ExternalPort': PORTS}
TENANT_RESOURCES = {'OS::TripleO::Network::Tenant': None,
                    'OS::TripleO::Controller::Ports::TenantPort': PORTS,
                    'OS::TripleO::Compute::Ports::TenantPort': PORTS}
STORAGE_RESOURCES = {'OS::TripleO::Network::Storage': None,
                     'OS::TripleO::Network::Ports::StorageVipPort': PORTS,
                     'OS::TripleO::Controller::Ports::StoragePort': PORTS,
                     'OS::TripleO::Compute::Ports::StoragePort': PORTS}
API_RESOURCES = {'OS::TripleO::Network::InternalApi': None,
                 'OS::TripleO::Network::Ports::InternalApiVipPort': PORTS,
                 'OS::TripleO::Controller::Ports::InternalApiPort': PORTS,
                 'OS::TripleO::Compute::Ports::InternalApiPort': PORTS}

# A list of flags that will be set to true when IPv6 is enabled
IPV6_FLAGS = ["NovaIPv6", "MongoDbIPv6", "CorosyncIPv6", "CephIPv6",
              "RabbitIPv6", "MemcachedIPv6"]

reg = 'resource_registry'
param_def = 'parameter_defaults'


class NetworkEnvironment(dict):
    """
    This class creates a Network Environment to be used in TripleO Heat
    Templates.

    The class builds upon an existing network-environment file and modifies
    based on a NetworkSettings object.
    """
    def __init__(self, net_settings, filename, compute_pre_config=False,
                 controller_pre_config=False):
        """
        Create Network Environment according to Network Settings
        """
        init_dict = {}
        if isinstance(filename, str):
            with open(filename, 'r') as net_env_fh:
                init_dict = yaml.safe_load(net_env_fh)

        super().__init__(init_dict)
        if not isinstance(net_settings, NetworkSettings):
            raise NetworkEnvException('Invalid Network Settings object')

        self._set_tht_dir()

        nets = net_settings['networks']

        admin_cidr = nets[ADMIN_NETWORK]['cidr']
        admin_prefix = str(admin_cidr.prefixlen)
        self[param_def]['ControlPlaneSubnetCidr'] = admin_prefix
        self[param_def]['ControlPlaneDefaultRoute'] = \
            nets[ADMIN_NETWORK]['installer_vm']['ip']
        self[param_def]['EC2MetadataIp'] = \
            nets[ADMIN_NETWORK]['installer_vm']['ip']
        self[param_def]['DnsServers'] = net_settings['dns_servers']

        if EXTERNAL_NETWORK in net_settings.enabled_network_list:
            external_cidr = net_settings.get_network(EXTERNAL_NETWORK)['cidr']
            self[param_def]['ExternalNetCidr'] = str(external_cidr)
            external_vlan = self._get_vlan(net_settings.get_network(
                                           EXTERNAL_NETWORK))
            if isinstance(external_vlan, int):
                self[param_def]['NeutronExternalNetworkBridge'] = '""'
                self[param_def]['ExternalNetworkVlanID'] = external_vlan
            external_range = net_settings.get_network(EXTERNAL_NETWORK)[
                'overcloud_ip_range']
            self[param_def]['ExternalAllocationPools'] = \
                [{'start': str(external_range[0]),
                  'end': str(external_range[1])}]
            self[param_def]['ExternalInterfaceDefaultRoute'] = \
                net_settings.get_network(EXTERNAL_NETWORK)['gateway']

            if external_cidr.version == 6:
                postfix = '/external_v6.yaml'
            else:
                postfix = '/external.yaml'
        else:
            postfix = '/noop.yaml'

        # apply resource registry update for EXTERNAL_RESOURCES
        self._config_resource_reg(EXTERNAL_RESOURCES, postfix)

        if TENANT_NETWORK in net_settings.enabled_network_list:
            tenant_range = nets[TENANT_NETWORK]['overcloud_ip_range']
            self[param_def]['TenantAllocationPools'] = \
                [{'start': str(tenant_range[0]),
                  'end': str(tenant_range[1])}]
            tenant_cidr = nets[TENANT_NETWORK]['cidr']
            self[param_def]['TenantNetCidr'] = str(tenant_cidr)
            if tenant_cidr.version == 6:
                postfix = '/tenant_v6.yaml'
                # set overlay_ip_version option in Neutron ML2 config
                self[param_def]['NeutronOverlayIPVersion'] = "6"
            else:
                postfix = '/tenant.yaml'

            tenant_vlan = self._get_vlan(nets[TENANT_NETWORK])
            if isinstance(tenant_vlan, int):
                self[param_def]['TenantNetworkVlanID'] = tenant_vlan
        else:
            postfix = '/noop.yaml'

        # apply resource registry update for TENANT_RESOURCES
        self._config_resource_reg(TENANT_RESOURCES, postfix)

        if STORAGE_NETWORK in net_settings.enabled_network_list:
            storage_range = nets[STORAGE_NETWORK]['overcloud_ip_range']
            self[param_def]['StorageAllocationPools'] = \
                [{'start': str(storage_range[0]),
                  'end': str(storage_range[1])}]
            storage_cidr = nets[STORAGE_NETWORK]['cidr']
            self[param_def]['StorageNetCidr'] = str(storage_cidr)
            if storage_cidr.version == 6:
                postfix = '/storage_v6.yaml'
            else:
                postfix = '/storage.yaml'
            storage_vlan = self._get_vlan(nets[STORAGE_NETWORK])
            if isinstance(storage_vlan, int):
                self[param_def]['StorageNetworkVlanID'] = storage_vlan
        else:
            postfix = '/noop.yaml'

        # apply resource registry update for STORAGE_RESOURCES
        self._config_resource_reg(STORAGE_RESOURCES, postfix)

        if API_NETWORK in net_settings.enabled_network_list:
            api_range = nets[API_NETWORK]['overcloud_ip_range']
            self[param_def]['InternalApiAllocationPools'] = \
                [{'start': str(api_range[0]),
                  'end': str(api_range[1])}]
            api_cidr = nets[API_NETWORK]['cidr']
            self[param_def]['InternalApiNetCidr'] = str(api_cidr)
            if api_cidr.version == 6:
                postfix = '/internal_api_v6.yaml'
            else:
                postfix = '/internal_api.yaml'
            api_vlan = self._get_vlan(nets[API_NETWORK])
            if isinstance(api_vlan, int):
                self[param_def]['InternalApiNetworkVlanID'] = api_vlan
        else:
            postfix = '/noop.yaml'

        # apply resource registry update for API_RESOURCES
        self._config_resource_reg(API_RESOURCES, postfix)

        # Set IPv6 related flags to True. Not that we do not set those to False
        # when IPv4 is configured, we'll use the default or whatever the user
        # may have set.
        if net_settings.get_ip_addr_family() == 6:
            for flag in IPV6_FLAGS:
                self[param_def][flag] = True

    def _get_vlan(self, network):
        if isinstance(network['nic_mapping'][CONTROLLER]['vlan'], int):
            return network['nic_mapping'][CONTROLLER]['vlan']
        elif isinstance(network['nic_mapping'][COMPUTE]['vlan'], int):
            return network['nic_mapping'][COMPUTE]['vlan']
        else:
            return 'native'

    def _set_tht_dir(self):
        self.tht_dir = None
        for key, prefix in TENANT_RESOURCES.items():
            if prefix is None:
                prefix = ''
            m = re.split('%s/\w+\.yaml' % prefix, self[reg][key])
            if m is not None and len(m) > 1:
                self.tht_dir = m[0]
                break
        if not self.tht_dir:
            raise NetworkEnvException('Unable to parse THT Directory')

    def _config_resource_reg(self, resources, postfix):
        for key, prefix in resources.items():
            if prefix is None:
                if postfix == '/noop.yaml':
                    self[reg][key] = HEAT_NONE
                    continue
                prefix = ''
            self[reg][key] = self.tht_dir + prefix + postfix


class NetworkEnvException(Exception):
    def __init__(self, value):
        self.value = value

    def __str__(self):
            return self.value