280 lines
9.9 KiB
Python
280 lines
9.9 KiB
Python
# Copyright 2016 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from charmhelpers.contrib.openstack import context
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from charmhelpers.core.hookenv import (
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config,
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log,
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relation_get,
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relation_ids,
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related_units,
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ERROR,
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)
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from charmhelpers.core.strutils import (
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bool_from_string,
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)
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# compatability functions to help with quantum -> neutron transition
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def _network_manager():
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from nova_compute_utils import network_manager as manager
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return manager()
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def _neutron_plugin():
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from nova_compute_utils import neutron_plugin
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return neutron_plugin()
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def _neutron_url(rid, unit):
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# supports legacy relation settings.
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return (relation_get('neutron_url', rid=rid, unit=unit) or
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relation_get('quantum_url', rid=rid, unit=unit))
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class NovaComputeVirtContext(context.OSContextGenerator):
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interfaces = []
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def __call__(self):
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ctxt = {}
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if config('instances-path') is not None:
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ctxt['instances_path'] = config('instances-path')
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if config('cpu-mode'):
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ctxt['cpu_mode'] = config('cpu-mode')
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if config('cpu-model'):
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ctxt['cpu_model'] = config('cpu-model')
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ctxt['reserved_host_memory'] = config('reserved-host-memory')
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return ctxt
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class CloudComputeContext(context.OSContextGenerator):
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'''
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Generates main context for writing nova.conf and quantum.conf templates
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from a cloud-compute relation changed hook. Mainly used for determining
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correct network and volume service configuration on the compute node,
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as advertised by the cloud-controller.
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Note: individual neutroj plugin contexts are handled elsewhere.
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'''
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interfaces = ['cloud-compute']
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@property
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def network_manager(self):
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return _network_manager()
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@property
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def volume_service(self):
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for rid in relation_ids('cloud-compute'):
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for unit in related_units(rid):
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volume_service = relation_get('volume_service',
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rid=rid, unit=unit)
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if volume_service:
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return volume_service
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return None
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def neutron_context(self):
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# generate config context for neutron or quantum. these get converted
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# directly into flags in nova.conf
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# NOTE: Its up to release templates to set correct driver
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def _legacy_quantum(ctxt):
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# rename neutron flags to support legacy quantum.
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renamed = {}
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for k, v in ctxt.iteritems():
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k = k.replace('neutron', 'quantum')
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renamed[k] = v
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return renamed
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neutron_ctxt = {'neutron_url': None}
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for rid in relation_ids('cloud-compute'):
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for unit in related_units(rid):
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rel = {'rid': rid, 'unit': unit}
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url = _neutron_url(**rel)
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if not url:
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# only bother with units that have a neutron url set.
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continue
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neutron_ctxt = {
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'auth_protocol': relation_get(
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'auth_protocol', **rel) or 'http',
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'service_protocol': relation_get(
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'service_protocol', **rel) or 'http',
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'service_port': relation_get(
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'service_port', **rel),
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'neutron_auth_strategy': 'keystone',
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'keystone_host': relation_get(
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'auth_host', **rel),
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'auth_port': relation_get(
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'auth_port', **rel),
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'neutron_admin_tenant_name': relation_get(
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'service_tenant_name', **rel),
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'neutron_admin_username': relation_get(
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'service_username', **rel),
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'neutron_admin_password': relation_get(
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'service_password', **rel),
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'neutron_plugin': _neutron_plugin(),
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'neutron_url': url,
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}
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missing = [k for k, v in neutron_ctxt.iteritems() if v in ['', None]]
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if missing:
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log('Missing required relation settings for Quantum: ' +
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' '.join(missing))
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return {}
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ks_url = '%s://%s:%s/v2.0' % (neutron_ctxt['auth_protocol'],
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neutron_ctxt['keystone_host'],
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neutron_ctxt['auth_port'])
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neutron_ctxt['neutron_admin_auth_url'] = ks_url
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if self.network_manager == 'quantum':
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return _legacy_quantum(neutron_ctxt)
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return neutron_ctxt
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def volume_context(self):
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# provide basic validation that the volume manager is supported on the
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# given openstack release (nova-volume is only supported for E and F)
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# it is up to release templates to set the correct volume driver.
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if not self.volume_service:
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return {}
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# ensure volume service is supported on specific openstack release.
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if self.volume_service == 'cinder':
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return 'cinder'
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else:
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e = ('Invalid volume service received via cloud-compute: %s' %
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self.volume_service)
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log(e, level=ERROR)
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raise context.OSContextError(e)
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def network_manager_context(self):
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ctxt = {}
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if self.network_manager in ['neutron', 'quantum']:
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ctxt = self.neutron_context()
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log('Generated config context for %s network manager.' %
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self.network_manager)
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return ctxt
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def restart_trigger(self):
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for rid in relation_ids('cloud-compute'):
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for unit in related_units(rid):
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rt = relation_get('restart_trigger', rid=rid, unit=unit)
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if rt:
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return rt
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return None
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def __call__(self):
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rids = relation_ids('cloud-compute')
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if not rids:
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return {}
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ctxt = {}
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net_manager = self.network_manager_context()
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if net_manager:
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ctxt['network_manager'] = self.network_manager
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ctxt['network_manager_config'] = net_manager
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# This is duplicating information in the context to enable
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# common keystone fragment to be used in template
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ctxt['service_protocol'] = net_manager.get('service_protocol')
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ctxt['service_host'] = net_manager.get('keystone_host')
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ctxt['service_port'] = net_manager.get('service_port')
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ctxt['admin_tenant_name'] = net_manager.get(
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'neutron_admin_tenant_name')
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ctxt['admin_user'] = net_manager.get('neutron_admin_username')
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ctxt['admin_password'] = net_manager.get('neutron_admin_password')
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ctxt['auth_protocol'] = net_manager.get('auth_protocol')
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ctxt['auth_host'] = net_manager.get('keystone_host')
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ctxt['auth_port'] = net_manager.get('auth_port')
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ctxt['api_version'] = net_manager.get('api_version')
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vol_service = self.volume_context()
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if vol_service:
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ctxt['volume_service'] = vol_service
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if self.restart_trigger():
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ctxt['restart_trigger'] = self.restart_trigger()
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return ctxt
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class NeutronRemoteComputeContext(context.NeutronContext):
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interfaces = ['neutron-plugin-api']
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@property
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def plugin(self):
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return _neutron_plugin()
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@property
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def network_manager(self):
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return _network_manager()
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def _ensure_packages(self):
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# NOTE(jamespage) no-op for nova-compute-proxy
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pass
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def _save_flag_file(self):
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# NOTE(jamespage) no-op for nova-compute-proxy
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pass
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def ovs_ctxt(self):
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ovs_ctxt = {
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'core_plugin': 'neutron.plugins.ml2.plugin.Ml2Plugin',
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'neutron_plugin': 'ovs',
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'neutron_security_groups': self.neutron_security_groups,
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'config': '/etc/neutron/plugins/ml2/ml2_conf.ini'
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}
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neutron_api_settings = context.NeutronAPIContext()()
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ovs_ctxt['neutron_security_groups'] = \
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neutron_api_settings['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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ovs_ctxt['prevent_arp_spoofing'] = config('prevent-arp-spoofing')
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return ovs_ctxt
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class SerialConsoleContext(context.OSContextGenerator):
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@property
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def enable_serial_console(self):
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for rid in relation_ids('cloud-compute'):
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for unit in related_units(rid):
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_enable_sc = relation_get('enable_serial_console', rid=rid,
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unit=unit)
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if _enable_sc and bool_from_string(_enable_sc):
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return 'true'
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return 'false'
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@property
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def serial_console_base_url(self):
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for rid in relation_ids('cloud-compute'):
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for unit in related_units(rid):
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base_url = relation_get('serial_console_base_url',
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rid=rid, unit=unit)
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if base_url is not None:
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return base_url
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return 'ws://127.0.0.1:6083/'
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def __call__(self):
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return {
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'enable_serial_console': self.enable_serial_console,
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'serial_console_base_url': self.serial_console_base_url,
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}
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