143 lines
4.4 KiB
Python
143 lines
4.4 KiB
Python
import os
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import uuid
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from charmhelpers.core.hookenv import (
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config,
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relation_get,
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relation_ids,
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related_units,
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unit_get,
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)
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from charmhelpers.contrib.openstack.ip import resolve_address
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from charmhelpers.contrib.openstack import context
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from charmhelpers.contrib.openstack.utils import get_host_ip
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from charmhelpers.contrib.network.ip import get_address_in_network
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from charmhelpers.contrib.openstack.context import (
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OSContextGenerator,
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NeutronAPIContext,
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)
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from charmhelpers.contrib.openstack.neutron import (
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parse_vlan_range_mappings,
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)
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class OVSPluginContext(context.NeutronContext):
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interfaces = []
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@property
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def plugin(self):
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return 'ovs'
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@property
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def network_manager(self):
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return 'neutron'
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@property
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def neutron_security_groups(self):
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if config('disable-security-groups'):
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return False
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neutron_api_settings = NeutronAPIContext()()
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return neutron_api_settings['neutron_security_groups']
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def ovs_ctxt(self):
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# In addition to generating config context, ensure the OVS service
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# is running and the OVS bridge exists. Also need to ensure
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# local_ip points to actual IP, not hostname.
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ovs_ctxt = super(OVSPluginContext, self).ovs_ctxt()
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if not ovs_ctxt:
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return {}
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conf = config()
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ovs_ctxt['local_ip'] = \
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get_address_in_network(config('os-data-network'),
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get_host_ip(unit_get('private-address')))
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neutron_api_settings = NeutronAPIContext()()
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ovs_ctxt['neutron_security_groups'] = self.neutron_security_groups
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ovs_ctxt['l2_population'] = neutron_api_settings['l2_population']
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ovs_ctxt['distributed_routing'] = neutron_api_settings['enable_dvr']
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ovs_ctxt['overlay_network_type'] = \
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neutron_api_settings['overlay_network_type']
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# TODO: We need to sort out the syslog and debug/verbose options as a
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# general context helper
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ovs_ctxt['use_syslog'] = conf['use-syslog']
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ovs_ctxt['verbose'] = conf['verbose']
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ovs_ctxt['debug'] = conf['debug']
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net_dev_mtu = neutron_api_settings.get('network_device_mtu')
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if net_dev_mtu:
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# neutron.conf
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ovs_ctxt['network_device_mtu'] = net_dev_mtu
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# ml2 conf
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ovs_ctxt['veth_mtu'] = net_dev_mtu
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mappings = config('bridge-mappings')
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if mappings:
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ovs_ctxt['bridge_mappings'] = mappings
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vlan_ranges = config('vlan-ranges')
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vlan_range_mappings = parse_vlan_range_mappings(config('vlan-ranges'))
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if vlan_ranges:
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providers = vlan_range_mappings.keys()
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ovs_ctxt['network_providers'] = ' '.join(providers)
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ovs_ctxt['vlan_ranges'] = vlan_ranges
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return ovs_ctxt
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class L3AgentContext(OSContextGenerator):
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def __call__(self):
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neutron_api_settings = NeutronAPIContext()()
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ctxt = {}
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if neutron_api_settings['enable_dvr']:
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ctxt['agent_mode'] = 'dvr'
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else:
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ctxt['agent_mode'] = 'legacy'
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return ctxt
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SHARED_SECRET = "/etc/neutron/secret.txt"
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def get_shared_secret():
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secret = None
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if not os.path.exists(SHARED_SECRET):
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secret = str(uuid.uuid4())
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with open(SHARED_SECRET, 'w') as secret_file:
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secret_file.write(secret)
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else:
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with open(SHARED_SECRET, 'r') as secret_file:
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secret = secret_file.read().strip()
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return secret
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class DVRSharedSecretContext(OSContextGenerator):
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def __call__(self):
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if NeutronAPIContext()()['enable_dvr']:
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ctxt = {
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'shared_secret': get_shared_secret(),
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'local_ip': resolve_address(),
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}
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else:
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ctxt = {}
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return ctxt
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class APIIdentityServiceContext(context.IdentityServiceContext):
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def __init__(self):
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super(APIIdentityServiceContext,
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self).__init__(rel_name='neutron-plugin-api')
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def __call__(self):
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ctxt = super(APIIdentityServiceContext, self).__call__()
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if not ctxt:
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return
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for rid in relation_ids('neutron-plugin-api'):
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for unit in related_units(rid):
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rdata = relation_get(rid=rid, unit=unit)
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ctxt['region'] = rdata.get('region')
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if ctxt['region']:
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return ctxt
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return ctxt
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