702 lines
23 KiB
Python
702 lines
23 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 uuid
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import os
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import platform
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from charmhelpers.core.unitdata import kv
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from charmhelpers.contrib.openstack import context
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from charmhelpers.core.host import (
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lsb_release,
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CompareHostReleases,
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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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from charmhelpers.fetch import apt_install, filter_installed_packages
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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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service_name,
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ERROR,
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INFO,
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)
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from charmhelpers.contrib.openstack.utils import (
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get_os_version_package,
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get_os_version_codename,
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os_release,
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CompareOpenStackReleases,
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)
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from charmhelpers.contrib.openstack.ip import (
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INTERNAL,
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resolve_address,
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)
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from charmhelpers.contrib.network.ip import (
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get_relation_ip,
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)
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# This is just a label and it must be consistent across
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# nova-compute nodes to support live migration.
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CEPH_SECRET_UUID = '514c9fca-8cbe-11e2-9c52-3bc8c7819472'
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OVS_BRIDGE = 'br-int'
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CEPH_CONF = '/etc/ceph/ceph.conf'
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CHARM_CEPH_CONF = '/var/lib/charm/{}/ceph.conf'
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NOVA_API_AA_PROFILE = 'usr.bin.nova-api'
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NOVA_COMPUTE_AA_PROFILE = 'usr.bin.nova-compute'
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NOVA_NETWORK_AA_PROFILE = 'usr.bin.nova-network'
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def ceph_config_file():
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return CHARM_CEPH_CONF.format(service_name())
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def _save_flag_file(path, data):
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'''
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Saves local state about plugin or manager to specified file.
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'''
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# Wonder if we can move away from this now?
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if data is None:
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return
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with open(path, 'wt') as out:
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out.write(data)
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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_security_groups():
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'''
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Inspects current cloud-compute relation and determine if nova-c-c has
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instructed us to use neutron security groups.
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'''
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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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groups = [
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relation_get('neutron_security_groups',
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rid=rid, unit=unit),
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relation_get('quantum_security_groups',
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rid=rid, unit=unit)
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]
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if ('yes' in groups or 'Yes' in groups):
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return True
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return False
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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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def nova_metadata_requirement():
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enable = False
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secret = None
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for rid in relation_ids('neutron-plugin'):
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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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if 'metadata-shared-secret' in rdata:
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secret = rdata['metadata-shared-secret']
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enable = True
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if bool_from_string(rdata.get('enable-metadata', 'False')):
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enable = True
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return enable, secret
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class LxdContext(context.OSContextGenerator):
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def __call__(self):
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lxd_context = {
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'storage_pool': None
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}
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for rid in relation_ids('lxd'):
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for unit in related_units(rid):
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rel = {'rid': rid, 'unit': unit}
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lxd_context = {
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'storage_pool': relation_get(
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'pool', **rel)
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}
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return lxd_context
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class NovaComputeLibvirtContext(context.OSContextGenerator):
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'''
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Determines various libvirt and nova options depending on live migration
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configuration.
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'''
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interfaces = []
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def __call__(self):
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# distro defaults
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ctxt = {
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# /etc/libvirt/libvirtd.conf (
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'listen_tls': 0
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}
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cmp_distro_codename = CompareHostReleases(
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lsb_release()['DISTRIB_CODENAME'].lower())
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cmp_os_release = CompareOpenStackReleases(os_release('nova-common'))
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# NOTE(jamespage): deal with switch to systemd
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if cmp_distro_codename < "wily":
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ctxt['libvirtd_opts'] = '-d'
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else:
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ctxt['libvirtd_opts'] = ''
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# NOTE(jamespage): deal with alignment with Debian in
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# Ubuntu yakkety and beyond.
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if cmp_distro_codename >= 'yakkety' or cmp_os_release >= 'ocata':
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ctxt['libvirt_user'] = 'libvirt'
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else:
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ctxt['libvirt_user'] = 'libvirtd'
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# get the processor architecture to use in the nova.conf template
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ctxt['arch'] = platform.machine()
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# enable tcp listening if configured for live migration.
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if config('enable-live-migration'):
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ctxt['libvirtd_opts'] += ' -l'
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if config('enable-live-migration') and \
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config('migration-auth-type') in ['none', 'None', 'ssh']:
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ctxt['listen_tls'] = 0
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if config('enable-live-migration') and \
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config('migration-auth-type') == 'ssh':
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# nova.conf
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ctxt['live_migration_uri'] = 'qemu+ssh://%s/system'
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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('disk-cachemodes'):
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ctxt['disk_cachemodes'] = config('disk-cachemodes')
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if config('use-multipath'):
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ctxt['use_multipath'] = config('use-multipath')
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if config('cpu-mode'):
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ctxt['cpu_mode'] = config('cpu-mode')
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elif ctxt['arch'] in ('ppc64el', 'ppc64le', 'aarch64'):
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ctxt['cpu_mode'] = 'host-passthrough'
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elif ctxt['arch'] == 's390x':
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ctxt['cpu_mode'] = 'none'
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if config('cpu-model'):
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ctxt['cpu_model'] = config('cpu-model')
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if config('hugepages'):
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ctxt['hugepages'] = True
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ctxt['kvm_hugepages'] = 1
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else:
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ctxt['kvm_hugepages'] = 0
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if config('ksm') in ("1", "0",):
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ctxt['ksm'] = config('ksm')
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else:
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if cmp_os_release < 'kilo':
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log("KSM set to 1 by default on openstack releases < kilo",
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level=INFO)
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ctxt['ksm'] = "1"
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else:
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ctxt['ksm'] = "AUTO"
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if config('pci-passthrough-whitelist'):
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ctxt['pci_passthrough_whitelist'] = \
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config('pci-passthrough-whitelist')
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if config('vcpu-pin-set'):
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ctxt['vcpu_pin_set'] = config('vcpu-pin-set')
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ctxt['reserved_host_memory'] = config('reserved-host-memory')
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db = kv()
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if db.get('host_uuid'):
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ctxt['host_uuid'] = db.get('host_uuid')
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else:
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host_uuid = str(uuid.uuid4())
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db.set('host_uuid', host_uuid)
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db.flush()
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ctxt['host_uuid'] = host_uuid
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if config('libvirt-image-backend'):
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ctxt['libvirt_images_type'] = config('libvirt-image-backend')
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ctxt['force_raw_images'] = config('force-raw-images')
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return ctxt
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class NovaComputeLibvirtOverrideContext(context.OSContextGenerator):
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"""Provides overrides to the libvirt-bin service"""
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interfaces = []
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def __call__(self):
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ctxt = {}
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ctxt['overrides'] = "limit nofile 65535 65535"
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return ctxt
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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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_release = lsb_release()['DISTRIB_CODENAME'].lower()
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if CompareHostReleases(_release) >= "yakkety":
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ctxt['virt_type'] = config('virt-type')
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ctxt['enable_live_migration'] = config('enable-live-migration')
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ctxt['resume_guests_state_on_host_boot'] =\
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config('resume-guests-state-on-host-boot')
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return ctxt
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def assert_libvirt_rbd_imagebackend_allowed():
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os_rel = "Juno"
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os_ver = get_os_version_package('nova-common')
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if float(os_ver) < float(get_os_version_codename(os_rel.lower())):
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msg = ("Libvirt RBD imagebackend only supported for openstack >= %s" %
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os_rel)
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raise Exception(msg)
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return True
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class NovaComputeCephContext(context.CephContext):
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def __call__(self):
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ctxt = super(NovaComputeCephContext, self).__call__()
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if not ctxt:
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return {}
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svc = service_name()
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# secret.xml
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ctxt['ceph_secret_uuid'] = CEPH_SECRET_UUID
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# nova.conf
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ctxt['service_name'] = svc
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ctxt['rbd_user'] = svc
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ctxt['rbd_secret_uuid'] = CEPH_SECRET_UUID
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ctxt['rbd_pool'] = config('rbd-pool')
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if (config('libvirt-image-backend') == 'rbd' and
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assert_libvirt_rbd_imagebackend_allowed()):
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ctxt['libvirt_rbd_images_ceph_conf'] = ceph_config_file()
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rbd_cache = config('rbd-client-cache') or ""
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if rbd_cache.lower() == "enabled":
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# We use write-though only to be safe for migration
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ctxt['rbd_client_cache_settings'] = \
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{'rbd cache': 'true',
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'rbd cache size': '64 MiB',
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'rbd cache max dirty': '0 MiB',
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'rbd cache writethrough until flush': 'true',
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'admin socket': '/var/run/ceph/rbd-client-$pid.asok'}
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asok_path = '/var/run/ceph/'
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if not os.path.isdir(asok_path):
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os.mkdir(asok_path)
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elif rbd_cache.lower() == "disabled":
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ctxt['rbd_client_cache_settings'] = {'rbd cache': 'false'}
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return 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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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 determinig
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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 quantum plugin contexts are handled elsewhere.
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'''
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interfaces = ['cloud-compute']
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def _ensure_packages(self, packages):
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'''Install but do not upgrade required packages'''
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required = filter_installed_packages(packages)
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if required:
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apt_install(required, fatal=True)
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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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volume_service = 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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volume_service = relation_get('volume_service',
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rid=rid, unit=unit)
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return volume_service
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@property
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def region(self):
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region = 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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region = relation_get('region', rid=rid, unit=unit)
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return region
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def flat_dhcp_context(self):
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ec2_host = 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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ec2_host = relation_get('ec2_host', rid=rid, unit=unit)
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if not ec2_host:
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return {}
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if config('multi-host').lower() == 'yes':
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self._ensure_packages(['nova-api', 'nova-network'])
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return {
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'flat_interface': config('flat-interface'),
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'ec2_dmz_host': ec2_host,
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}
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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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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) or '5000',
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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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'api_version': relation_get(
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'api_version', **rel) or '2.0',
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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.items() 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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neutron_ctxt['neutron_security_groups'] = _neutron_security_groups()
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ks_url = '%s://%s:%s/v%s' % (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['api_version'])
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neutron_ctxt['neutron_admin_auth_url'] = ks_url
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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 == 'flatdhcpmanager':
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ctxt = self.flat_dhcp_context()
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elif self.network_manager == 'neutron':
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ctxt = self.neutron_context()
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_save_flag_file(path='/etc/nova/nm.conf', data=self.network_manager)
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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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rt = 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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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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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')
|
|
ctxt['auth_protocol'] = net_manager.get('auth_protocol')
|
|
ctxt['auth_host'] = net_manager.get('keystone_host')
|
|
ctxt['auth_port'] = net_manager.get('auth_port')
|
|
ctxt['api_version'] = net_manager.get('api_version')
|
|
|
|
net_dev_mtu = config('network-device-mtu')
|
|
if net_dev_mtu:
|
|
ctxt['network_device_mtu'] = net_dev_mtu
|
|
|
|
vol_service = self.volume_context()
|
|
if vol_service:
|
|
ctxt['volume_service'] = vol_service
|
|
|
|
if self.restart_trigger():
|
|
ctxt['restart_trigger'] = self.restart_trigger()
|
|
|
|
region = self.region
|
|
if region:
|
|
ctxt['region'] = region
|
|
|
|
return ctxt
|
|
|
|
|
|
class InstanceConsoleContext(context.OSContextGenerator):
|
|
interfaces = []
|
|
|
|
def get_console_info(self, proto, **kwargs):
|
|
console_settings = {
|
|
proto + '_proxy_address':
|
|
relation_get('console_proxy_%s_address' % (proto), **kwargs),
|
|
proto + '_proxy_host':
|
|
relation_get('console_proxy_%s_host' % (proto), **kwargs),
|
|
proto + '_proxy_port':
|
|
relation_get('console_proxy_%s_port' % (proto), **kwargs),
|
|
}
|
|
return console_settings
|
|
|
|
def __call__(self):
|
|
ctxt = {}
|
|
for rid in relation_ids('cloud-compute'):
|
|
for unit in related_units(rid):
|
|
rel = {'rid': rid, 'unit': unit}
|
|
proto = relation_get('console_access_protocol', **rel)
|
|
if not proto:
|
|
# only bother with units that have a proto set.
|
|
continue
|
|
ctxt['console_keymap'] = relation_get('console_keymap', **rel)
|
|
ctxt['console_access_protocol'] = proto
|
|
ctxt['console_vnc_type'] = True if 'vnc' in proto else False
|
|
if proto == 'vnc':
|
|
ctxt = dict(ctxt, **self.get_console_info('xvpvnc', **rel))
|
|
ctxt = dict(ctxt, **self.get_console_info('novnc', **rel))
|
|
else:
|
|
ctxt = dict(ctxt, **self.get_console_info(proto, **rel))
|
|
break
|
|
ctxt['console_listen_addr'] = resolve_address(endpoint_type=INTERNAL)
|
|
return ctxt
|
|
|
|
|
|
class MetadataServiceContext(context.OSContextGenerator):
|
|
|
|
def __call__(self):
|
|
ctxt = {}
|
|
_, secret = nova_metadata_requirement()
|
|
if secret:
|
|
ctxt['metadata_shared_secret'] = secret
|
|
return ctxt
|
|
|
|
|
|
class DesignateContext(context.OSContextGenerator):
|
|
|
|
def __call__(self):
|
|
ctxt = {}
|
|
ctxt['enable_designate'] = False
|
|
for rid in relation_ids('nova-designate'):
|
|
if related_units(rid):
|
|
ctxt['enable_designate'] = True
|
|
if ctxt['enable_designate']:
|
|
notification_topics = ['notifications',
|
|
'notifications_designate']
|
|
ctxt['notification_topics'] = ','.join(notification_topics)
|
|
ctxt['notify_on_state_change'] = 'vm_and_task_state'
|
|
return ctxt
|
|
|
|
|
|
class NeutronComputeContext(context.OSContextGenerator):
|
|
interfaces = []
|
|
|
|
@property
|
|
def plugin(self):
|
|
return _neutron_plugin()
|
|
|
|
@property
|
|
def network_manager(self):
|
|
return _network_manager()
|
|
|
|
@property
|
|
def neutron_security_groups(self):
|
|
return _neutron_security_groups()
|
|
|
|
def __call__(self):
|
|
if self.plugin:
|
|
return {
|
|
'network_manager': self.network_manager,
|
|
'neutron_plugin': self.plugin,
|
|
'neutron_security_groups': self.neutron_security_groups
|
|
}
|
|
return {}
|
|
|
|
|
|
class HostIPContext(context.OSContextGenerator):
|
|
def __call__(self):
|
|
ctxt = {}
|
|
# Use the address used in the cloud-compute relation in templates for
|
|
# this host
|
|
host_ip = get_relation_ip('cloud-compute',
|
|
cidr_network=config('os-internal-network'))
|
|
|
|
if host_ip:
|
|
# NOTE: do not format this even for ipv6 (see bug 1499656)
|
|
ctxt['host_ip'] = host_ip
|
|
|
|
return ctxt
|
|
|
|
|
|
class NovaAPIAppArmorContext(context.AppArmorContext):
|
|
|
|
def __init__(self):
|
|
super(NovaAPIAppArmorContext, self).__init__()
|
|
self.aa_profile = NOVA_API_AA_PROFILE
|
|
|
|
def __call__(self):
|
|
super(NovaAPIAppArmorContext, self).__call__()
|
|
if not self.ctxt:
|
|
return self.ctxt
|
|
self._ctxt.update({'aa_profile': self.aa_profile})
|
|
return self.ctxt
|
|
|
|
|
|
class NovaComputeAppArmorContext(context.AppArmorContext):
|
|
|
|
def __init__(self):
|
|
super(NovaComputeAppArmorContext, self).__init__()
|
|
self.aa_profile = NOVA_COMPUTE_AA_PROFILE
|
|
|
|
def __call__(self):
|
|
super(NovaComputeAppArmorContext, self).__call__()
|
|
if not self.ctxt:
|
|
return self.ctxt
|
|
self._ctxt.update({'virt_type': config('virt-type')})
|
|
self._ctxt.update({'aa_profile': self.aa_profile})
|
|
return self.ctxt
|
|
|
|
|
|
class NovaNetworkAppArmorContext(context.AppArmorContext):
|
|
|
|
def __init__(self):
|
|
super(NovaNetworkAppArmorContext, self).__init__()
|
|
self.aa_profile = NOVA_NETWORK_AA_PROFILE
|
|
|
|
def __call__(self):
|
|
super(NovaNetworkAppArmorContext, self).__call__()
|
|
if not self.ctxt:
|
|
return self.ctxt
|
|
self._ctxt.update({'aa_profile': self.aa_profile})
|
|
return self.ctxt
|
|
|
|
|
|
class NovaComputeAvailabilityZoneContext(context.OSContextGenerator):
|
|
|
|
def __call__(self):
|
|
ctxt = {}
|
|
if config('default-availability-zone'):
|
|
ctxt['default_availability_zone'] = config(
|
|
'default-availability-zone')
|
|
return ctxt
|