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##############################################################################
# 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 import constants
PORTS = '/ports'
# Resources defined by <resource name>: <prefix>
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}
class NetworkEnvironment:
"""
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):
with open(filename, 'r') as net_env_fh:
self.netenv_obj = yaml.load(net_env_fh)
if net_settings:
settings_obj = net_settings.get_network_settings()
enabled_networks = net_settings.get_enabled_networks()
self.netenv_obj = \
self._update_net_environment(settings_obj,
enabled_networks)
else:
raise NetworkEnvException("Network Settings does not exist")
def _update_net_environment(self, net_settings, enabled_networks):
"""
Updates Network Environment according to Network Settings
:param: network settings dictionary
:param: enabled network list
:return: None
"""
param_def = 'parameter_defaults'
reg = 'resource_registry'
for key, prefix in TENANT_RESOURCES.items():
if prefix is None:
prefix = ''
m = re.split('%s/\w+\.yaml' % prefix, self.netenv_obj[reg][key])
if m is not None:
tht_dir = m[0]
break
if not tht_dir:
raise NetworkEnvException('Unable to parse THT Directory')
admin_cidr = net_settings[constants.ADMIN_NETWORK]['cidr']
admin_prefix = str(admin_cidr.prefixlen)
self.netenv_obj[param_def]['ControlPlaneSubnetCidr'] = admin_prefix
self.netenv_obj[param_def]['ControlPlaneDefaultRoute'] = \
net_settings[constants.ADMIN_NETWORK]['provisioner_ip']
public_cidr = net_settings[constants.PUBLIC_NETWORK]['cidr']
self.netenv_obj[param_def]['ExternalNetCidr'] = str(public_cidr)
public_range = net_settings[constants.PUBLIC_NETWORK][
'usable_ip_range'].split(',')
self.netenv_obj[param_def]['ExternalAllocationPools'] = \
[{'start':
public_range[0],
'end': public_range[1]
}]
self.netenv_obj[param_def]['ExternalInterfaceDefaultRoute'] = \
net_settings[constants.PUBLIC_NETWORK]['gateway']
self.netenv_obj[param_def]['EC2MetadataIp'] = \
net_settings[constants.ADMIN_NETWORK]['provisioner_ip']
self.netenv_obj[param_def]['DnsServers'] = net_settings['dns_servers']
if constants.PRIVATE_NETWORK in enabled_networks:
priv_range = net_settings[constants.PRIVATE_NETWORK][
'usable_ip_range'].split(',')
self.netenv_obj[param_def]['TenantAllocationPools'] = \
[{'start':
priv_range[0],
'end': priv_range[1]
}]
priv_cidr = net_settings[constants.PRIVATE_NETWORK]['cidr']
self.netenv_obj[param_def]['TenantNetCidr'] = str(priv_cidr)
postfix = '/tenant.yaml'
else:
postfix = '/noop.yaml'
for key, prefix in TENANT_RESOURCES.items():
if prefix is None:
prefix = ''
self.netenv_obj[reg][key] = tht_dir + prefix + postfix
if constants.STORAGE_NETWORK in enabled_networks:
storage_range = net_settings[constants.STORAGE_NETWORK][
'usable_ip_range'].split(',')
self.netenv_obj[param_def]['StorageAllocationPools'] = \
[{'start':
storage_range[0],
'end':
storage_range[1]
}]
storage_cidr = net_settings[constants.STORAGE_NETWORK]['cidr']
self.netenv_obj[param_def]['StorageNetCidr'] = str(storage_cidr)
postfix = '/storage.yaml'
else:
postfix = '/noop.yaml'
for key, prefix in STORAGE_RESOURCES.items():
if prefix is None:
prefix = ''
self.netenv_obj[reg][key] = tht_dir + prefix + postfix
if constants.API_NETWORK in enabled_networks:
api_range = net_settings[constants.API_NETWORK][
'usable_ip_range'].split(',')
self.netenv_obj[param_def]['InternalApiAllocationPools'] = \
[{'start':
api_range[0],
'end':
api_range[1]
}]
api_cidr = net_settings[constants.API_NETWORK]['cidr']
self.netenv_obj[param_def]['InternalApiNetCidr'] = str(api_cidr)
postfix = '/internal_api.yaml'
else:
postfix = '/noop.yaml'
for key, prefix in API_RESOURCES.items():
if prefix is None:
prefix = ''
self.netenv_obj[reg][key] = tht_dir + prefix + postfix
return self.netenv_obj
def get_netenv_settings(self):
"""
Getter for netenv settings
:return: Dictionary of network environment settings
"""
return self.netenv_obj
class NetworkEnvException(Exception):
def __init__(self, value):
self.value = value
def __str__(self):
return self.value
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