646 lines
20 KiB
Python
Executable File
646 lines
20 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# 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 base64
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import json
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import platform
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import sys
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import uuid
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import os
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import subprocess
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import grp
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import shutil
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import charmhelpers.core.unitdata as unitdata
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from charmhelpers.core.hookenv import (
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Hooks,
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config,
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is_relation_made,
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local_unit,
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log,
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relation_ids,
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remote_service_name,
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related_units,
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relation_get,
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relation_set,
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service_name,
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UnregisteredHookError,
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status_set,
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)
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from charmhelpers.core.templating import (
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render
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)
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from charmhelpers.core.host import (
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service_restart,
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service_stop,
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write_file,
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umount,
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is_container,
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)
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from charmhelpers.fetch import (
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apt_install,
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apt_purge,
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apt_update,
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filter_installed_packages,
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)
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from charmhelpers.contrib.openstack.utils import (
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configure_installation_source,
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openstack_upgrade_available,
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is_unit_paused_set,
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pausable_restart_on_change as restart_on_change,
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series_upgrade_prepare,
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series_upgrade_complete,
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)
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from charmhelpers.contrib.storage.linux.ceph import (
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ensure_ceph_keyring,
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CephBrokerRq,
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delete_keyring,
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send_request_if_needed,
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is_request_complete,
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is_broker_action_done,
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mark_broker_action_done,
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)
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from charmhelpers.payload.execd import execd_preinstall
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from nova_compute_utils import (
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create_libvirt_secret,
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determine_packages,
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import_authorized_keys,
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import_keystone_ca_cert,
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initialize_ssh_keys,
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migration_enabled,
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do_openstack_upgrade,
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public_ssh_key,
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restart_map,
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services,
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register_configs,
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NOVA_CONF,
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ceph_config_file, CEPH_SECRET,
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CEPH_BACKEND_SECRET,
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enable_shell, disable_shell,
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configure_lxd,
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fix_path_ownership,
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assert_charm_supports_ipv6,
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install_hugepages,
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get_hugepage_number,
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assess_status,
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set_ppc64_cpu_smt_state,
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remove_libvirt_network,
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network_manager,
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libvirt_daemon,
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LIBVIRT_TYPES,
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configure_local_ephemeral_storage,
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pause_unit_helper,
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resume_unit_helper,
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get_availability_zone,
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remove_old_packages,
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MULTIPATH_PACKAGES,
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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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from charmhelpers.core.unitdata import kv
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from nova_compute_context import (
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nova_metadata_requirement,
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CEPH_SECRET_UUID,
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assert_libvirt_rbd_imagebackend_allowed,
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NovaAPIAppArmorContext,
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NovaComputeAppArmorContext,
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NovaNetworkAppArmorContext,
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)
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from charmhelpers.contrib.charmsupport import nrpe
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from charmhelpers.core.sysctl import create as create_sysctl
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from charmhelpers.contrib.hardening.harden import harden
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from socket import gethostname
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import charmhelpers.contrib.openstack.vaultlocker as vaultlocker
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hooks = Hooks()
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CONFIGS = register_configs()
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MIGRATION_AUTH_TYPES = ["ssh"]
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LIBVIRTD_PID = '/var/run/libvirtd.pid'
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@hooks.hook('install.real')
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@harden()
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def install():
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status_set('maintenance', 'Executing pre-install')
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execd_preinstall()
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configure_installation_source(config('openstack-origin'))
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status_set('maintenance', 'Installing apt packages')
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apt_update()
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apt_install(determine_packages(), fatal=True)
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@hooks.hook('config-changed')
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@restart_on_change(restart_map())
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@harden()
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def config_changed():
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if is_unit_paused_set():
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log("Do not run config_changed when paused", "WARNING")
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return
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if config('ephemeral-unmount'):
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umount(config('ephemeral-unmount'), persist=True)
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if config('prefer-ipv6'):
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status_set('maintenance', 'configuring ipv6')
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assert_charm_supports_ipv6()
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if (migration_enabled() and
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config('migration-auth-type') not in MIGRATION_AUTH_TYPES):
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message = ("Invalid migration-auth-type")
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status_set('blocked', message)
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raise Exception(message)
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global CONFIGS
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send_remote_restart = False
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if not config('action-managed-upgrade'):
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if openstack_upgrade_available('nova-common'):
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status_set('maintenance', 'Running openstack upgrade')
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do_openstack_upgrade(CONFIGS)
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send_remote_restart = True
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sysctl_settings = config('sysctl')
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if sysctl_settings and not is_container():
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create_sysctl(sysctl_settings, '/etc/sysctl.d/50-nova-compute.conf')
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remove_libvirt_network('default')
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if migration_enabled() and config('migration-auth-type') == 'ssh':
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# Check-in with nova-c-c and register new ssh key, if it has just been
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# generated.
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status_set('maintenance', 'SSH key exchange')
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initialize_ssh_keys()
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import_authorized_keys()
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if config('enable-resize') is True:
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enable_shell(user='nova')
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status_set('maintenance', 'SSH key exchange')
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initialize_ssh_keys(user='nova')
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import_authorized_keys(user='nova', prefix='nova')
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else:
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disable_shell(user='nova')
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if config('instances-path') is not None:
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fp = config('instances-path')
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fix_path_ownership(fp, user='nova')
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[compute_joined(rid) for rid in relation_ids('cloud-compute')]
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for rid in relation_ids('neutron-plugin'):
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neutron_plugin_joined(rid, remote_restart=send_remote_restart)
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for rid in relation_ids('nova-ceilometer'):
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nova_ceilometer_joined(rid, remote_restart=send_remote_restart)
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if is_relation_made("nrpe-external-master"):
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update_nrpe_config()
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if config('hugepages'):
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install_hugepages()
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# Disable smt for ppc64, required for nova/libvirt/kvm
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arch = platform.machine()
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log('CPU architecture: {}'.format(arch))
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if arch in ['ppc64el', 'ppc64le']:
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set_ppc64_cpu_smt_state('off')
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# NOTE(jamespage): trigger any configuration related changes
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# for cephx permissions restrictions and
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# keys on disk for ceph-access backends
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for rid in relation_ids('ceph'):
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for unit in related_units(rid):
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ceph_changed(rid=rid, unit=unit)
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for rid in relation_ids('ceph-access'):
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for unit in related_units(rid):
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ceph_access(rid=rid, unit=unit)
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CONFIGS.write_all()
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NovaComputeAppArmorContext().setup_aa_profile()
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if (network_manager() in ['flatmanager', 'flatdhcpmanager'] and
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config('multi-host').lower() == 'yes'):
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NovaAPIAppArmorContext().setup_aa_profile()
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NovaNetworkAppArmorContext().setup_aa_profile()
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install_vaultlocker()
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install_multipath()
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configure_local_ephemeral_storage()
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def install_vaultlocker():
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"""Determine whether vaultlocker is required and install"""
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if config('encrypt'):
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installed = len(filter_installed_packages(['vaultlocker'])) == 0
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if not installed:
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apt_install('vaultlocker', fatal=True)
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def install_multipath():
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if config('use-multipath'):
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installed = len(filter_installed_packages(MULTIPATH_PACKAGES)) == 0
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if not installed:
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apt_install(MULTIPATH_PACKAGES, fatal=True)
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@hooks.hook('amqp-relation-joined')
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def amqp_joined(relation_id=None):
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relation_set(relation_id=relation_id,
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username=config('rabbit-user'),
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vhost=config('rabbit-vhost'))
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@hooks.hook('amqp-relation-changed')
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@hooks.hook('amqp-relation-departed')
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@restart_on_change(restart_map())
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def amqp_changed():
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if 'amqp' not in CONFIGS.complete_contexts():
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log('amqp relation incomplete. Peer not ready?')
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return
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CONFIGS.write(NOVA_CONF)
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@hooks.hook('image-service-relation-changed')
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@restart_on_change(restart_map())
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def image_service_changed():
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if 'image-service' not in CONFIGS.complete_contexts():
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log('image-service relation incomplete. Peer not ready?')
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return
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CONFIGS.write(NOVA_CONF)
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@hooks.hook('ephemeral-backend-relation-changed',
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'ephemeral-backend-relation-broken')
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@restart_on_change(restart_map())
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def ephemeral_backend_hook():
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if 'ephemeral-backend' not in CONFIGS.complete_contexts():
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log('ephemeral-backend relation incomplete. Peer not ready?')
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return
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CONFIGS.write(NOVA_CONF)
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@hooks.hook('cloud-compute-relation-joined')
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def compute_joined(rid=None):
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# NOTE(james-page) in MAAS environments the actual hostname is a CNAME
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# record so won't get scanned based on private-address which is an IP
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# add the hostname configured locally to the relation.
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settings = {
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'hostname': gethostname(),
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'private-address': get_relation_ip(
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'cloud-compute', cidr_network=config('os-internal-network')),
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}
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if migration_enabled():
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auth_type = config('migration-auth-type')
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settings['migration_auth_type'] = auth_type
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if auth_type == 'ssh':
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settings['ssh_public_key'] = public_ssh_key()
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relation_set(relation_id=rid, **settings)
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if config('enable-resize'):
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settings['nova_ssh_public_key'] = public_ssh_key(user='nova')
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relation_set(relation_id=rid, **settings)
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@hooks.hook('cloud-compute-relation-changed')
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@restart_on_change(restart_map())
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def compute_changed():
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# rewriting all configs to pick up possible net or vol manager
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# config advertised from controller.
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CONFIGS.write_all()
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import_authorized_keys()
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import_authorized_keys(user='nova', prefix='nova')
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import_keystone_ca_cert()
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@hooks.hook('ceph-access-relation-joined')
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@hooks.hook('ceph-relation-joined')
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@restart_on_change(restart_map())
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def ceph_joined():
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pkgs = filter_installed_packages(['ceph-common'])
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if pkgs:
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status_set('maintenance', 'Installing ceph-common package')
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apt_install(pkgs, fatal=True)
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# Bug 1427660
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if not is_unit_paused_set() and config('virt-type') in LIBVIRT_TYPES:
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service_restart(libvirt_daemon())
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def get_ceph_request():
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rq = CephBrokerRq()
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if (config('libvirt-image-backend') == 'rbd' and
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assert_libvirt_rbd_imagebackend_allowed()):
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name = config('rbd-pool')
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replicas = config('ceph-osd-replication-count')
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weight = config('ceph-pool-weight')
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rq.add_op_create_pool(name=name, replica_count=replicas, weight=weight,
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group='vms', app_name='rbd')
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if config('restrict-ceph-pools'):
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rq.add_op_request_access_to_group(
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name="volumes",
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object_prefix_permissions={'class-read': ['rbd_children']},
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permission='rwx')
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rq.add_op_request_access_to_group(
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name="images",
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object_prefix_permissions={'class-read': ['rbd_children']},
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permission='rwx')
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rq.add_op_request_access_to_group(
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name="vms",
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object_prefix_permissions={'class-read': ['rbd_children']},
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permission='rwx')
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return rq
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@hooks.hook('ceph-relation-changed')
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@restart_on_change(restart_map())
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def ceph_changed(rid=None, unit=None):
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if 'ceph' not in CONFIGS.complete_contexts():
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log('ceph relation incomplete. Peer not ready?')
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return
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if not ensure_ceph_keyring(service=service_name(), user='nova',
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group='nova'):
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log('Could not create ceph keyring: peer not ready?')
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return
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CONFIGS.write(ceph_config_file())
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CONFIGS.write(CEPH_SECRET)
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CONFIGS.write(NOVA_CONF)
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# With some refactoring, this can move into NovaComputeCephContext
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# and allow easily extended to support other compute flavors.
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key = relation_get(attribute='key', rid=rid, unit=unit)
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if config('virt-type') in ['kvm', 'qemu', 'lxc'] and key:
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create_libvirt_secret(secret_file=CEPH_SECRET,
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secret_uuid=CEPH_SECRET_UUID, key=key)
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if is_request_complete(get_ceph_request()):
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log('Request complete')
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# Ensure that nova-compute is restarted since only now can we
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# guarantee that ceph resources are ready, but only if not paused.
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if (not is_unit_paused_set() and
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not is_broker_action_done('nova_compute_restart', rid,
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unit)):
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service_restart('nova-compute')
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mark_broker_action_done('nova_compute_restart', rid, unit)
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else:
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send_request_if_needed(get_ceph_request())
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@hooks.hook('ceph-relation-broken')
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def ceph_broken():
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service = service_name()
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delete_keyring(service=service)
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CONFIGS.write_all()
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@hooks.hook('amqp-relation-broken', 'image-service-relation-broken')
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@restart_on_change(restart_map())
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def relation_broken():
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CONFIGS.write_all()
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@hooks.hook('upgrade-charm')
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@harden()
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def upgrade_charm():
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apt_install(filter_installed_packages(determine_packages()),
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fatal=True)
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# NOTE: ensure psutil install for hugepages configuration
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status_set('maintenance', 'Installing apt packages')
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apt_install(filter_installed_packages(['python-psutil']))
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packages_removed = remove_old_packages()
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if packages_removed and not is_unit_paused_set():
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log("Package purge detected, restarting services", "INFO")
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for s in services():
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service_restart(s)
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for r_id in relation_ids('amqp'):
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amqp_joined(relation_id=r_id)
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if is_relation_made('nrpe-external-master'):
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update_nrpe_config()
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# Fix previously wrongly created path permissions
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# LP: https://bugs.launchpad.net/charm-cinder-ceph/+bug/1779676
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asok_path = '/var/run/ceph/'
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gid = grp.getgrnam("kvm").gr_gid
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if gid and os.path.isdir(asok_path) and gid != os.stat(asok_path).st_gid:
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log("{} not owned by group 'kvm', fixing permissions."
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.format(asok_path))
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shutil.chown(asok_path, group='kvm')
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@hooks.hook('nova-ceilometer-relation-joined')
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def nova_ceilometer_joined(relid=None, remote_restart=False):
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if remote_restart:
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rel_settings = {
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'restart-trigger': str(uuid.uuid4())}
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relation_set(relation_id=relid, relation_settings=rel_settings)
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@hooks.hook('nova-ceilometer-relation-changed')
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@restart_on_change(restart_map())
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def nova_ceilometer_relation_changed():
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CONFIGS.write_all()
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@hooks.hook('nrpe-external-master-relation-joined',
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'nrpe-external-master-relation-changed')
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def update_nrpe_config():
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# python-dbus is used by check_upstart_job
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apt_install('python-dbus')
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hostname = nrpe.get_nagios_hostname()
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current_unit = nrpe.get_nagios_unit_name()
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nrpe_setup = nrpe.NRPE(hostname=hostname)
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monitored_services = services()
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try:
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# qemu-kvm is a one-shot service
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monitored_services.remove('qemu-kvm')
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except ValueError:
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pass
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nrpe.add_init_service_checks(nrpe_setup, monitored_services, current_unit)
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nrpe_setup.write()
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@hooks.hook('neutron-plugin-relation-joined')
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def neutron_plugin_joined(relid=None, remote_restart=False):
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rel_settings = {
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'hugepage_number': get_hugepage_number(),
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'default_availability_zone': get_availability_zone()
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}
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if remote_restart:
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rel_settings['restart-trigger'] = str(uuid.uuid4())
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relation_set(relation_id=relid,
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**rel_settings)
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@hooks.hook('neutron-plugin-relation-changed')
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@restart_on_change(restart_map())
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def neutron_plugin_changed():
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enable_nova_metadata, _ = nova_metadata_requirement()
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if enable_nova_metadata:
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apt_update()
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apt_install(filter_installed_packages(['nova-api-metadata']),
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fatal=True)
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else:
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apt_purge('nova-api-metadata', fatal=True)
|
|
service_restart_handler(default_service='nova-compute')
|
|
CONFIGS.write(NOVA_CONF)
|
|
|
|
|
|
# TODO(jamespage): Move this into charmhelpers for general reuse.
|
|
def service_restart_handler(relation_id=None, unit=None,
|
|
default_service=None):
|
|
'''Handler for detecting requests from subordinate
|
|
charms for restarts of services'''
|
|
restart_nonce = relation_get(attribute='restart-nonce',
|
|
unit=unit,
|
|
rid=relation_id)
|
|
db = unitdata.kv()
|
|
nonce_key = 'restart-nonce'
|
|
if restart_nonce != db.get(nonce_key):
|
|
if not is_unit_paused_set():
|
|
service = relation_get(attribute='remote-service',
|
|
unit=unit,
|
|
rid=relation_id) or default_service
|
|
if service:
|
|
service_restart(service)
|
|
db.set(nonce_key, restart_nonce)
|
|
db.flush()
|
|
|
|
|
|
@hooks.hook('lxd-relation-joined')
|
|
def lxd_joined(relid=None):
|
|
relation_set(relation_id=relid,
|
|
user='nova')
|
|
|
|
|
|
@hooks.hook('lxd-relation-changed')
|
|
@restart_on_change(restart_map())
|
|
def lxc_changed():
|
|
nonce = relation_get('nonce')
|
|
db = kv()
|
|
if nonce and db.get('lxd-nonce') != nonce:
|
|
db.set('lxd-nonce', nonce)
|
|
configure_lxd(user='nova')
|
|
CONFIGS.write(NOVA_CONF)
|
|
|
|
|
|
@hooks.hook('ceph-access-relation-changed')
|
|
def ceph_access(rid=None, unit=None):
|
|
'''Setup libvirt secret for specific ceph backend access'''
|
|
key = relation_get('key', unit, rid)
|
|
uuid = relation_get('secret-uuid', unit, rid)
|
|
if key and uuid:
|
|
remote_service = remote_service_name(rid)
|
|
if config('virt-type') in LIBVIRT_TYPES:
|
|
secrets_filename = CEPH_BACKEND_SECRET.format(remote_service)
|
|
render(os.path.basename(CEPH_SECRET), secrets_filename,
|
|
context={'ceph_secret_uuid': uuid,
|
|
'service_name': remote_service})
|
|
create_libvirt_secret(secret_file=secrets_filename,
|
|
secret_uuid=uuid,
|
|
key=key)
|
|
# NOTE(jamespage): LXD ceph integration via host rbd mapping, so
|
|
# install keyring for rbd commands to use
|
|
ensure_ceph_keyring(service=remote_service,
|
|
user='nova', group='nova',
|
|
key=key)
|
|
|
|
|
|
@hooks.hook('secrets-storage-relation-joined')
|
|
def secrets_storage_joined(relation_id=None):
|
|
relation_set(relation_id=relation_id,
|
|
secret_backend=vaultlocker.VAULTLOCKER_BACKEND,
|
|
isolated=True,
|
|
access_address=get_relation_ip('secrets-storage'),
|
|
hostname=gethostname())
|
|
|
|
|
|
@hooks.hook('secrets-storage-relation-changed')
|
|
def secrets_storage_changed():
|
|
vault_ca = relation_get('vault_ca')
|
|
if vault_ca:
|
|
vault_ca = base64.decodebytes(json.loads(vault_ca).encode())
|
|
write_file('/usr/local/share/ca-certificates/vault-ca.crt',
|
|
vault_ca, perms=0o644)
|
|
subprocess.check_call(['update-ca-certificates', '--fresh'])
|
|
configure_local_ephemeral_storage()
|
|
|
|
|
|
@hooks.hook('storage.real')
|
|
def storage_changed():
|
|
configure_local_ephemeral_storage()
|
|
|
|
|
|
@hooks.hook('cloud-credentials-relation-joined')
|
|
def cloud_credentials_joined():
|
|
svc_name = local_unit().split('/')[0].replace('-', '_')
|
|
relation_set(username=svc_name)
|
|
|
|
|
|
@hooks.hook('cloud-credentials-relation-changed')
|
|
@restart_on_change(restart_map())
|
|
def cloud_credentials_changed():
|
|
CONFIGS.write(NOVA_CONF)
|
|
|
|
|
|
@hooks.hook('update-status')
|
|
@harden()
|
|
def update_status():
|
|
log('Updating status.')
|
|
|
|
|
|
@hooks.hook('pre-series-upgrade')
|
|
def pre_series_upgrade():
|
|
log("Running prepare series upgrade hook", "INFO")
|
|
series_upgrade_prepare(
|
|
pause_unit_helper, CONFIGS)
|
|
|
|
|
|
@hooks.hook('post-series-upgrade')
|
|
def post_series_upgrade():
|
|
log("Running complete series upgrade hook", "INFO")
|
|
service_stop('nova-compute')
|
|
service_stop('libvirt-bin')
|
|
# After package upgrade the service is broken and leaves behind a
|
|
# PID file which causes the service to fail to start.
|
|
# Remove this before restart
|
|
if os.path.exists(LIBVIRTD_PID):
|
|
os.unlink(LIBVIRTD_PID)
|
|
series_upgrade_complete(
|
|
resume_unit_helper, CONFIGS)
|
|
|
|
|
|
def main():
|
|
try:
|
|
hooks.execute(sys.argv)
|
|
except UnregisteredHookError as e:
|
|
log('Unknown hook {} - skipping.'.format(e))
|
|
assess_status(CONFIGS)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|