256 lines
8.4 KiB
Python
256 lines
8.4 KiB
Python
from charmhelpers.core.hookenv import (
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config, relation_ids, relation_set, log, ERROR,
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unit_get, related_units, relation_get)
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from charmhelpers.fetch import apt_install, filter_installed_packages
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from charmhelpers.contrib.openstack import context, neutron, utils
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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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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 NeutronAPIContext(context.OSContextGenerator):
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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 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 = []
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def __call__(self):
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ctxt = {}
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if relation_ids('nova-volume-service'):
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if utils.os_release('nova-common') not in ['essex', 'folsom']:
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e = ('Attempting to relate a nova-volume service to an '
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'Nova version (%s). Use cinder.')
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log(e, level=ERROR)
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raise context.OSContextError(e)
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install_pkg = filter_installed_packages(['nova-api-os-volume'])
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if install_pkg:
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apt_install(install_pkg)
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ctxt['volume_service'] = 'nova-volume'
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elif 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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ec2_api = determine_api_port(api_port('nova-api-ec2'))
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s3_api = determine_api_port(api_port('nova-objectstore'))
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nvol_api = determine_api_port(api_port('nova-api-os-volume'))
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neutron_api = determine_api_port(api_port('neutron-server'))
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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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a_ec2_api = determine_apache_port(api_port('nova-api-ec2'))
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a_s3_api = determine_apache_port(api_port('nova-objectstore'))
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a_nvol_api = determine_apache_port(api_port('nova-api-os-volume'))
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a_neutron_api = determine_apache_port(api_port('neutron-server'))
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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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}
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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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}
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if relation_ids('nova-volume-service'):
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port_mapping.update({
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'nova-api-ec2': [
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api_port('nova-api-ec2'), a_nvol_api],
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})
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listen_ports['osapi_volume_listen_port'] = nvol_api
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if neutron.network_manager() in ['neutron', 'quantum']:
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port_mapping.update({
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'neutron-server': [
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api_port('neutron-server'), a_neutron_api]
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})
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# quantum/neutron.conf listening port, set separte from nova's.
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ctxt['neutron_bind_port'] = neutron_api
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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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return ctxt
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def canonical_url(vip_setting='vip'):
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'''
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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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:vip_setting: str: Setting in charm config that specifies
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VIP address.
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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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if is_clustered():
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addr = config(vip_setting)
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else:
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addr = unit_get('private-address')
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return '%s://%s' % (scheme, addr)
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class NeutronCCContext(context.NeutronContext):
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interfaces = []
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@property
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def plugin(self):
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from nova_cc_utils import neutron_plugin
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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 neutron.network_manager()
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@property
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def neutron_security_groups(self):
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sec_groups = (config('neutron-security-groups') or
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config('quantum-security-groups'))
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return sec_groups.lower() == 'yes'
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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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if config('quantum-plugin') in ['nvp', 'nsx']:
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_config = config()
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for k, v in _config.iteritems():
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if k.startswith('nvp'):
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ctxt[k.replace('-', '_')] = v
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if 'nvp-controllers' in _config:
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ctxt['nvp_controllers'] = \
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','.join(_config['nvp-controllers'].split())
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ctxt['nvp_controllers_list'] = \
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_config['nvp-controllers'].split()
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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 NovaPostgresqlDBContext(context.PostgresqlDBContext):
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interfaces = ['pgsql-nova-db']
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class NeutronPostgresqlDBContext(context.PostgresqlDBContext):
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interfaces = ['pgsql-neutron-db']
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def __init__(self):
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super(NeutronPostgresqlDBContext,
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self).__init__(config('neutron-database'))
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class WorkerConfigContext(context.OSContextGenerator):
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def __call__(self):
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import psutil
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multiplier = config('worker-multiplier') or 1
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ctxt = {
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"workers": psutil.NUM_CPUS * multiplier
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}
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return ctxt
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class NovaConfigContext(WorkerConfigContext):
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def __call__(self):
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ctxt = super(NovaConfigContext, self).__call__()
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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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return ctxt
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