416 lines
14 KiB
Python
416 lines
14 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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import os
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from base64 import b64decode
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from charmhelpers.core.hookenv import (
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config,
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relation_ids,
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relation_set,
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log,
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DEBUG,
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related_units,
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relations_for_id,
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relation_get,
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unit_get,
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)
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from charmhelpers.contrib.openstack import (
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context,
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neutron,
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)
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from charmhelpers.contrib.hahelpers.cluster import (
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determine_apache_port,
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determine_api_port,
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https,
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is_clustered,
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)
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from charmhelpers.contrib.network.ip import (
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format_ipv6_addr,
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)
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from charmhelpers.contrib.openstack.ip import (
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resolve_address,
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INTERNAL,
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PUBLIC,
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)
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def context_complete(ctxt):
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_missing = []
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for k, v in ctxt.iteritems():
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if v is None or v == '':
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_missing.append(k)
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if _missing:
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log('Missing required data: %s' % ' '.join(_missing), level='INFO')
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return False
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return True
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class ApacheSSLContext(context.ApacheSSLContext):
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interfaces = ['https']
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external_ports = []
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service_namespace = 'nova'
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def __call__(self):
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# late import to work around circular dependency
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from nova_cc_utils import determine_ports
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self.external_ports = determine_ports()
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return super(ApacheSSLContext, self).__call__()
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class NovaCellContext(context.OSContextGenerator):
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interfaces = ['nova-cell']
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def __call__(self):
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log('Generating template context for cell')
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ctxt = {}
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for rid in relation_ids('cell'):
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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 = {
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'cell_type': rdata.get('cell_type'),
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'cell_name': rdata.get('cell_name'),
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}
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if context.context_complete(ctxt):
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return ctxt
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return {}
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class NovaCellV2SharedDBContext(context.OSContextGenerator):
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interfaces = ['shared-db']
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def __call__(self):
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log('Generating template context for cell v2 share-db')
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ctxt = {}
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for rid in relation_ids('shared-db'):
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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 = {
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'novaapi_password': rdata.get('novaapi_password'),
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'novacell0_password': rdata.get('novacell0_password'),
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'nova_password': rdata.get('nova_password'),
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}
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if context.context_complete(ctxt):
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return ctxt
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return {}
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class CloudComputeContext(context.OSContextGenerator):
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"Dummy context used by service status to check relation exists"
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interfaces = ['nova-compute']
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def __call__(self):
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ctxt = {}
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rids = [rid for rid in relation_ids('cloud-compute')]
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if rids:
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ctxt['rids'] = rids
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return ctxt
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class NeutronAPIContext(context.OSContextGenerator):
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interfaces = ['neutron-api']
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def __call__(self):
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log('Generating template context from neutron api relation')
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ctxt = {}
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for rid in relation_ids('neutron-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 = {
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'neutron_url': rdata.get('neutron-url'),
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'neutron_plugin': rdata.get('neutron-plugin'),
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'neutron_security_groups':
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rdata.get('neutron-security-groups'),
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'network_manager': 'neutron',
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}
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if rdata.get('enable-sriov', '').lower() == 'true':
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ctxt['additional_neutron_filters'] = 'PciPassthroughFilter'
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if context_complete(ctxt):
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return ctxt
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return {}
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class VolumeServiceContext(context.OSContextGenerator):
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interfaces = ['cinder-volume-service']
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def __call__(self):
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ctxt = {}
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if relation_ids('cinder-volume-service'):
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ctxt['volume_service'] = 'cinder'
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# kick all compute nodes to know they should use cinder now.
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[relation_set(relation_id=rid, volume_service='cinder')
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for rid in relation_ids('cloud-compute')]
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return ctxt
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class HAProxyContext(context.HAProxyContext):
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interfaces = ['ceph']
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def __call__(self):
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'''
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Extends the main charmhelpers HAProxyContext with a port mapping
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specific to this charm.
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Also used to extend nova.conf context with correct api_listening_ports
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'''
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from nova_cc_utils import api_port
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ctxt = super(HAProxyContext, self).__call__()
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# determine which port api processes should bind to, depending
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# on existence of haproxy + apache frontends
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compute_api = determine_api_port(api_port('nova-api-os-compute'),
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singlenode_mode=True)
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ec2_api = determine_api_port(api_port('nova-api-ec2'),
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singlenode_mode=True)
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s3_api = determine_api_port(api_port('nova-objectstore'),
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singlenode_mode=True)
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placement_api = determine_api_port(api_port('nova-placement-api'),
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singlenode_mode=True)
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# Apache ports
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a_compute_api = determine_apache_port(api_port('nova-api-os-compute'),
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singlenode_mode=True)
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a_ec2_api = determine_apache_port(api_port('nova-api-ec2'),
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singlenode_mode=True)
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a_s3_api = determine_apache_port(api_port('nova-objectstore'),
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singlenode_mode=True)
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a_placement_api = determine_apache_port(api_port('nova-placement-api'),
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singlenode_mode=True)
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# to be set in nova.conf accordingly.
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listen_ports = {
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'osapi_compute_listen_port': compute_api,
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'ec2_listen_port': ec2_api,
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's3_listen_port': s3_api,
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'placement_listen_port': placement_api,
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}
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port_mapping = {
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'nova-api-os-compute': [
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api_port('nova-api-os-compute'), a_compute_api],
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'nova-api-ec2': [
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api_port('nova-api-ec2'), a_ec2_api],
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'nova-objectstore': [
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api_port('nova-objectstore'), a_s3_api],
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'nova-placement-api': [
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api_port('nova-placement-api'), a_placement_api],
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}
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# for haproxy.conf
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ctxt['service_ports'] = port_mapping
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# for nova.conf
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ctxt['listen_ports'] = listen_ports
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ctxt['port'] = placement_api
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return ctxt
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def canonical_url():
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"""Returns the correct HTTP URL to this host given the state of HTTPS
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configuration and hacluster.
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"""
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scheme = 'http'
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if https():
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scheme = 'https'
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addr = resolve_address(INTERNAL)
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return '%s://%s' % (scheme, format_ipv6_addr(addr) or addr)
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class NeutronCCContext(context.NeutronContext):
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interfaces = ['quantum-network-service', 'neutron-network-service']
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@property
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def network_manager(self):
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return neutron.network_manager()
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def _ensure_packages(self):
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# Only compute nodes need to ensure packages here, to install
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# required agents.
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return
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def __call__(self):
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ctxt = super(NeutronCCContext, self).__call__()
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ctxt['external_network'] = config('neutron-external-network')
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ctxt['nova_url'] = "{}:8774/v2".format(canonical_url())
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return ctxt
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class IdentityServiceContext(context.IdentityServiceContext):
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def __call__(self):
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ctxt = super(IdentityServiceContext, self).__call__()
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if not ctxt:
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return
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# the ec2 api needs to know the location of the keystone ec2
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# tokens endpoint, set in nova.conf
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ec2_tokens = '%s://%s:%s/v2.0/ec2tokens' % (
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ctxt['service_protocol'] or 'http',
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ctxt['service_host'],
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ctxt['service_port']
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)
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ctxt['keystone_ec2_url'] = ec2_tokens
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ctxt['region'] = config('region')
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return ctxt
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class NovaConfigContext(context.WorkerConfigContext):
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def __call__(self):
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ctxt = super(NovaConfigContext, self).__call__()
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ctxt['scheduler_default_filters'] = config('scheduler-default-filters')
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if config('pci-alias'):
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ctxt['pci_alias'] = config('pci-alias')
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ctxt['disk_allocation_ratio'] = config('disk-allocation-ratio')
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ctxt['cpu_allocation_ratio'] = config('cpu-allocation-ratio')
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ctxt['ram_allocation_ratio'] = config('ram-allocation-ratio')
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addr = resolve_address(INTERNAL)
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ctxt['host_ip'] = format_ipv6_addr(addr) or addr
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return ctxt
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class NovaIPv6Context(context.BindHostContext):
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def __call__(self):
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ctxt = super(NovaIPv6Context, self).__call__()
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ctxt['use_ipv6'] = config('prefer-ipv6')
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return ctxt
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class InstanceConsoleContext(context.OSContextGenerator):
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interfaces = []
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def __call__(self):
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ctxt = {}
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servers = []
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try:
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for rid in relation_ids('memcache'):
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for rel in relations_for_id(rid):
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priv_addr = rel['private-address']
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# Format it as IPv6 address if needed
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priv_addr = format_ipv6_addr(priv_addr) or priv_addr
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servers.append("%s:%s" % (priv_addr, rel['port']))
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except Exception as ex:
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log("Could not get memcache servers: %s" % (ex), level='WARNING')
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servers = []
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ctxt['memcached_servers'] = ','.join(servers)
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# Configure nova-novncproxy https if nova-api is using https.
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if https():
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cn = resolve_address(endpoint_type=INTERNAL)
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if cn:
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cert_filename = 'cert_{}'.format(cn)
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key_filename = 'key_{}'.format(cn)
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else:
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cert_filename = 'cert'
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key_filename = 'key'
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ssl_dir = '/etc/apache2/ssl/nova'
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cert = os.path.join(ssl_dir, cert_filename)
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key = os.path.join(ssl_dir, key_filename)
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if os.path.exists(cert) and os.path.exists(key):
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ctxt['ssl_cert'] = cert
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ctxt['ssl_key'] = key
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return ctxt
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class ConsoleSSLContext(context.OSContextGenerator):
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interfaces = []
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def __call__(self):
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ctxt = {}
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from nova_cc_utils import console_attributes
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if (config('console-ssl-cert') and
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config('console-ssl-key') and
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config('console-access-protocol')):
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ssl_dir = '/etc/nova/ssl/'
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if not os.path.exists(ssl_dir):
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log('Creating %s.' % ssl_dir, level=DEBUG)
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os.mkdir(ssl_dir)
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cert_path = os.path.join(ssl_dir, 'nova_cert.pem')
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decode_ssl_cert = b64decode(config('console-ssl-cert'))
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key_path = os.path.join(ssl_dir, 'nova_key.pem')
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decode_ssl_key = b64decode(config('console-ssl-key'))
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with open(cert_path, 'w') as fh:
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fh.write(decode_ssl_cert)
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with open(key_path, 'w') as fh:
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fh.write(decode_ssl_key)
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ctxt['ssl_only'] = True
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ctxt['ssl_cert'] = cert_path
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ctxt['ssl_key'] = key_path
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if is_clustered():
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ip_addr = resolve_address(endpoint_type=PUBLIC)
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else:
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ip_addr = unit_get('private-address')
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ip_addr = format_ipv6_addr(ip_addr) or ip_addr
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_proto = config('console-access-protocol')
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url = "https://%s:%s%s" % (
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ip_addr,
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console_attributes('proxy-port', proto=_proto),
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console_attributes('proxy-page', proto=_proto))
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if _proto == 'novnc':
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ctxt['novncproxy_base_url'] = url
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elif _proto == 'spice':
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ctxt['html5proxy_base_url'] = url
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return ctxt
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class SerialConsoleContext(context.OSContextGenerator):
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interfaces = []
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def __call__(self):
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ip_addr = resolve_address(endpoint_type=PUBLIC)
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ip_addr = format_ipv6_addr(ip_addr) or ip_addr
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ctxt = {
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'enable_serial_console':
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str(config('enable-serial-console')).lower(),
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'serial_console_base_url': 'ws://{}:6083/'.format(ip_addr)
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}
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return ctxt
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class APIRateLimitingContext(context.OSContextGenerator):
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def __call__(self):
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ctxt = {}
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rate_rules = config('api-rate-limit-rules')
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if rate_rules:
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ctxt['api_rate_limit_rules'] = rate_rules
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return ctxt
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class NovaAPISharedDBContext(context.SharedDBContext):
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'''
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Wrapper context to support multiple database connections being
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represented to a single config file
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ctxt values are namespaced with a nova_api_ prefix
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'''
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def __call__(self):
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ctxt = super(NovaAPISharedDBContext, self).__call__()
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if ctxt is not None:
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prefix = 'nova_api_{}'
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ctxt = {prefix.format(k): v for k, v in ctxt.items()}
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return ctxt
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