1035 lines
34 KiB
Python
1035 lines
34 KiB
Python
# Copyright 2016 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import re
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import shutil
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import pwd
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import subprocess
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import platform
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from itertools import chain
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from base64 import b64decode
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from copy import deepcopy
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from subprocess import (
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check_call,
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check_output,
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CalledProcessError
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)
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from charmhelpers.fetch import (
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apt_update,
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apt_upgrade,
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apt_install,
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)
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from charmhelpers.core.fstab import Fstab
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from charmhelpers.core.host import (
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adduser,
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add_group,
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add_user_to_group,
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mkdir,
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service_restart,
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lsb_release,
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write_file,
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rsync,
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CompareHostReleases,
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)
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from charmhelpers.core.hookenv import (
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charm_dir,
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config,
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log,
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related_units,
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relation_ids,
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relation_get,
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status_set,
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DEBUG,
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INFO,
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WARNING,
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)
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from charmhelpers.core.templating import render
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from charmhelpers.core.decorators import retry_on_exception
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from charmhelpers.contrib.openstack import templating, context
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from charmhelpers.contrib.openstack.alternatives import install_alternative
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from charmhelpers.contrib.openstack.utils import (
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configure_installation_source,
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get_os_codename_install_source,
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git_clone_and_install,
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git_default_repos,
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git_generate_systemd_init_files,
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git_install_requested,
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git_pip_venv_dir,
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git_src_dir,
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git_yaml_value,
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os_release,
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reset_os_release,
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is_unit_paused_set,
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make_assess_status_func,
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pause_unit,
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resume_unit,
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os_application_version_set,
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CompareOpenStackReleases,
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)
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from charmhelpers.contrib.python.packages import (
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pip_install,
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)
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from charmhelpers.core.hugepage import hugepage_support
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from nova_compute_context import (
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nova_metadata_requirement,
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CloudComputeContext,
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LxdContext,
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MetadataServiceContext,
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NovaComputeLibvirtContext,
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NovaComputeLibvirtOverrideContext,
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NovaComputeCephContext,
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NeutronComputeContext,
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InstanceConsoleContext,
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CEPH_CONF,
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ceph_config_file,
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HostIPContext,
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DesignateContext,
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NovaComputeVirtContext,
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NOVA_API_AA_PROFILE,
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NOVA_COMPUTE_AA_PROFILE,
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NOVA_NETWORK_AA_PROFILE,
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NovaAPIAppArmorContext,
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NovaComputeAppArmorContext,
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NovaNetworkAppArmorContext,
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SerialConsoleContext,
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NovaComputeAvailabilityZoneContext,
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)
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CA_CERT_PATH = '/usr/local/share/ca-certificates/keystone_juju_ca_cert.crt'
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TEMPLATES = 'templates/'
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BASE_PACKAGES = [
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'nova-compute',
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'genisoimage', # was missing as a package dependency until raring.
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'librbd1', # bug 1440953
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'python-six',
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'python-psutil',
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]
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VERSION_PACKAGE = 'nova-common'
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BASE_GIT_PACKAGES = [
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'libffi-dev',
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'libssl-dev',
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'libvirt-bin',
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'libxml2-dev',
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'libxslt1-dev',
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'libvirt-dev',
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'libyaml-dev',
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'openstack-pkg-tools',
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'python-dev',
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'python-pip',
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'python-setuptools',
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'zlib1g-dev',
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]
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LATE_GIT_PACKAGES = [
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'bridge-utils',
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'dnsmasq-base',
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'dnsmasq-utils',
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'ebtables',
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'genisoimage',
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'iptables',
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'iputils-arping',
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'kpartx',
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'kvm',
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'netcat',
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'open-iscsi',
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'parted',
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'python-libvirt',
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'qemu',
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'qemu-system',
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'qemu-utils',
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'vlan',
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]
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# ubuntu packages that should not be installed when deploying from git
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GIT_PACKAGE_BLACKLIST = [
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'neutron-plugin-openvswitch',
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'neutron-plugin-openvswitch-agent',
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'neutron-server',
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'nova-api',
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'nova-api-metadata',
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'nova-compute',
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'nova-compute-kvm',
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'nova-compute-lxc',
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'nova-compute-lxd',
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'nova-compute-qemu',
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'nova-compute-uml',
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'nova-network',
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'python-six',
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'quantum-plugin-openvswitch',
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'quantum-plugin-openvswitch-agent',
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'quantum-server',
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]
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DEFAULT_INSTANCE_PATH = '/var/lib/nova/instances'
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NOVA_CONF_DIR = "/etc/nova"
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QEMU_CONF = '/etc/libvirt/qemu.conf'
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LIBVIRTD_CONF = '/etc/libvirt/libvirtd.conf'
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LIBVIRT_BIN = '/etc/default/libvirt-bin'
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LIBVIRT_BIN_OVERRIDES = '/etc/init/libvirt-bin.override'
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NOVA_CONF = '%s/nova.conf' % NOVA_CONF_DIR
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QEMU_KVM = '/etc/default/qemu-kvm'
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NOVA_API_AA_PROFILE_PATH = ('/etc/apparmor.d/{}'.format(NOVA_API_AA_PROFILE))
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NOVA_COMPUTE_AA_PROFILE_PATH = ('/etc/apparmor.d/{}'
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''.format(NOVA_COMPUTE_AA_PROFILE))
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NOVA_NETWORK_AA_PROFILE_PATH = ('/etc/apparmor.d/{}'
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''.format(NOVA_NETWORK_AA_PROFILE))
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LIBVIRT_TYPES = ['kvm', 'qemu', 'lxc']
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BASE_RESOURCE_MAP = {
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NOVA_CONF: {
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'services': ['nova-compute'],
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'contexts': [context.AMQPContext(ssl_dir=NOVA_CONF_DIR),
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context.SharedDBContext(
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relation_prefix='nova', ssl_dir=NOVA_CONF_DIR),
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context.PostgresqlDBContext(),
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context.ImageServiceContext(),
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context.OSConfigFlagContext(),
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CloudComputeContext(),
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LxdContext(),
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NovaComputeLibvirtContext(),
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NovaComputeCephContext(),
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context.SyslogContext(),
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context.SubordinateConfigContext(
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interface=['neutron-plugin', 'nova-ceilometer',
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'ephemeral-backend'],
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service=['nova-compute', 'nova'],
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config_file=NOVA_CONF),
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InstanceConsoleContext(),
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context.ZeroMQContext(),
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context.NotificationDriverContext(),
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MetadataServiceContext(),
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HostIPContext(),
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DesignateContext(),
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NovaComputeVirtContext(),
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context.LogLevelContext(),
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context.InternalEndpointContext('nova-common'),
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SerialConsoleContext(),
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NovaComputeAvailabilityZoneContext(),
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context.WorkerConfigContext()],
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},
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NOVA_API_AA_PROFILE_PATH: {
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'services': ['nova-api'],
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'contexts': [NovaAPIAppArmorContext()],
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},
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NOVA_COMPUTE_AA_PROFILE_PATH: {
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'services': ['nova-compute'],
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'contexts': [NovaComputeAppArmorContext()],
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},
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NOVA_NETWORK_AA_PROFILE_PATH: {
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'services': ['nova-network'],
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'contexts': [NovaNetworkAppArmorContext()],
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},
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}
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LIBVIRTD_DAEMON = 'libvirtd'
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LIBVIRT_BIN_DAEMON = 'libvirt-bin'
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LIBVIRT_RESOURCE_MAP = {
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QEMU_CONF: {
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'services': [LIBVIRT_BIN_DAEMON],
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'contexts': [NovaComputeLibvirtContext()],
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},
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QEMU_KVM: {
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'services': ['qemu-kvm'],
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'contexts': [NovaComputeLibvirtContext()],
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},
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LIBVIRTD_CONF: {
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'services': [LIBVIRT_BIN_DAEMON],
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'contexts': [NovaComputeLibvirtContext()],
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},
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LIBVIRT_BIN: {
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'services': [LIBVIRT_BIN_DAEMON],
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'contexts': [NovaComputeLibvirtContext()],
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},
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LIBVIRT_BIN_OVERRIDES: {
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'services': [LIBVIRT_BIN_DAEMON],
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'contexts': [NovaComputeLibvirtOverrideContext()],
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},
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}
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LIBVIRT_RESOURCE_MAP.update(BASE_RESOURCE_MAP)
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CEPH_SECRET = '/etc/ceph/secret.xml'
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CEPH_BACKEND_SECRET = '/etc/ceph/secret-{}.xml'
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CEPH_RESOURCES = {
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CEPH_SECRET: {
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'contexts': [NovaComputeCephContext()],
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'services': [],
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}
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}
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# Maps virt-type config to a compute package(s).
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VIRT_TYPES = {
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'kvm': ['nova-compute-kvm'],
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'qemu': ['nova-compute-qemu'],
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'uml': ['nova-compute-uml'],
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'lxc': ['nova-compute-lxc'],
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'lxd': ['nova-compute-lxd'],
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}
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# Maps virt-type config to a libvirt URI.
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LIBVIRT_URIS = {
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'kvm': 'qemu:///system',
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'qemu': 'qemu:///system',
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'uml': 'uml:///system',
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'lxc': 'lxc:///',
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}
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# The interface is said to be satisfied if anyone of the interfaces in the
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# list has a complete context.
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REQUIRED_INTERFACES = {
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'messaging': ['amqp'],
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'image': ['image-service'],
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}
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def libvirt_daemon():
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'''Resolve the correct name of the libvirt daemon service'''
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distro_codename = lsb_release()['DISTRIB_CODENAME'].lower()
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if (CompareHostReleases(distro_codename) >= 'yakkety' or
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CompareOpenStackReleases(os_release('nova-common')) >= 'ocata'):
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return LIBVIRTD_DAEMON
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else:
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return LIBVIRT_BIN_DAEMON
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def resource_map():
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'''
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Dynamically generate a map of resources that will be managed for a single
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hook execution.
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'''
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# TODO: Cache this on first call?
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if config('virt-type').lower() == 'lxd':
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resource_map = deepcopy(BASE_RESOURCE_MAP)
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else:
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resource_map = deepcopy(LIBVIRT_RESOURCE_MAP)
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net_manager = network_manager()
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# Network manager gets set late by the cloud-compute interface.
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# FlatDHCPManager only requires some extra packages.
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cmp_os_release = CompareOpenStackReleases(os_release('nova-common'))
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if (net_manager in ['flatmanager', 'flatdhcpmanager'] and
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config('multi-host').lower() == 'yes' and
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cmp_os_release < 'ocata'):
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resource_map[NOVA_CONF]['services'].extend(
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['nova-api', 'nova-network']
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)
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else:
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resource_map.pop(NOVA_API_AA_PROFILE_PATH)
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resource_map.pop(NOVA_NETWORK_AA_PROFILE_PATH)
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cmp_distro_codename = CompareHostReleases(
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lsb_release()['DISTRIB_CODENAME'].lower())
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if (cmp_distro_codename >= 'yakkety' or cmp_os_release >= 'ocata'):
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for data in resource_map.values():
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if LIBVIRT_BIN_DAEMON in data['services']:
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data['services'].remove(LIBVIRT_BIN_DAEMON)
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data['services'].append(LIBVIRTD_DAEMON)
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# Neutron/quantum requires additional contexts, as well as new resources
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# depending on the plugin used.
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# NOTE(james-page): only required for ovs plugin right now
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if net_manager in ['neutron', 'quantum']:
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resource_map[NOVA_CONF]['contexts'].append(NeutronComputeContext())
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if relation_ids('ceph'):
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CEPH_RESOURCES[ceph_config_file()] = {
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'contexts': [NovaComputeCephContext()],
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'services': ['nova-compute']
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}
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resource_map.update(CEPH_RESOURCES)
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enable_nova_metadata, _ = nova_metadata_requirement()
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if enable_nova_metadata:
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resource_map[NOVA_CONF]['services'].append('nova-api-metadata')
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return resource_map
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def restart_map():
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'''
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Constructs a restart map based on charm config settings and relation
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state.
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'''
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return {k: v['services'] for k, v in resource_map().items()}
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def services():
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''' Returns a list of services associated with this charm '''
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return list(set(chain(*restart_map().values())))
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def register_configs():
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'''
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Returns an OSTemplateRenderer object with all required configs registered.
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'''
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release = os_release('nova-common')
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configs = templating.OSConfigRenderer(templates_dir=TEMPLATES,
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openstack_release=release)
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if relation_ids('ceph'):
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# Add charm ceph configuration to resources and
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# ensure directory actually exists
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mkdir(os.path.dirname(ceph_config_file()))
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mkdir(os.path.dirname(CEPH_CONF))
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# Install ceph config as an alternative for co-location with
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# ceph and ceph-osd charms - nova-compute ceph.conf will be
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# lower priority that both of these but thats OK
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if not os.path.exists(ceph_config_file()):
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# touch file for pre-templated generation
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open(ceph_config_file(), 'w').close()
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install_alternative(os.path.basename(CEPH_CONF),
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CEPH_CONF, ceph_config_file())
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for cfg, d in resource_map().items():
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configs.register(cfg, d['contexts'])
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return configs
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def determine_packages_arch():
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'''Generate list of architecture-specific packages'''
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packages = []
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distro_codename = lsb_release()['DISTRIB_CODENAME'].lower()
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if (platform.machine() == 'aarch64' and
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CompareHostReleases(distro_codename) >= 'wily'):
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packages.extend(['qemu-efi']), # AArch64 cloud images require UEFI fw
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return packages
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def determine_packages():
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packages = [] + BASE_PACKAGES
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net_manager = network_manager()
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if (net_manager in ['flatmanager', 'flatdhcpmanager'] and
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config('multi-host').lower() == 'yes' and
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CompareOpenStackReleases(os_release('nova-common')) < 'ocata'):
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packages.extend(['nova-api', 'nova-network'])
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if relation_ids('ceph'):
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packages.append('ceph-common')
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virt_type = config('virt-type')
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try:
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packages.extend(VIRT_TYPES[virt_type])
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except KeyError:
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log('Unsupported virt-type configured: %s' % virt_type)
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raise
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enable_nova_metadata, _ = nova_metadata_requirement()
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if enable_nova_metadata:
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packages.append('nova-api-metadata')
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packages.extend(determine_packages_arch())
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if git_install_requested():
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packages = list(set(packages))
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packages.extend(BASE_GIT_PACKAGES)
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# don't include packages that will be installed from git
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for p in GIT_PACKAGE_BLACKLIST:
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if p in packages:
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packages.remove(p)
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return packages
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def migration_enabled():
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# XXX: confirm juju-core bool behavior is the same.
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return config('enable-live-migration')
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def _network_config():
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'''
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Obtain all relevant network configuration settings from nova-c-c via
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cloud-compute interface.
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'''
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settings = ['network_manager', 'neutron_plugin', 'quantum_plugin']
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net_config = {}
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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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for setting in settings:
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value = relation_get(setting, rid=rid, unit=unit)
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if value:
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net_config[setting] = value
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return net_config
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def neutron_plugin():
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return (_network_config().get('neutron_plugin') or
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_network_config().get('quantum_plugin'))
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def network_manager():
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'''
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Obtain the network manager advertised by nova-c-c, renaming to Quantum
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if required
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'''
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manager = _network_config().get('network_manager')
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if manager:
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manager = manager.lower()
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if manager != 'neutron':
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return manager
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else:
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return 'neutron'
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return manager
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def public_ssh_key(user='root'):
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home = pwd.getpwnam(user).pw_dir
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try:
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with open(os.path.join(home, '.ssh', 'id_rsa.pub')) as key:
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return key.read().strip()
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except:
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return None
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def initialize_ssh_keys(user='root'):
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home_dir = pwd.getpwnam(user).pw_dir
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ssh_dir = os.path.join(home_dir, '.ssh')
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if not os.path.isdir(ssh_dir):
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os.mkdir(ssh_dir)
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priv_key = os.path.join(ssh_dir, 'id_rsa')
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if not os.path.isfile(priv_key):
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log('Generating new ssh key for user %s.' % user)
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cmd = ['ssh-keygen', '-q', '-N', '', '-t', 'rsa', '-b', '2048',
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'-f', priv_key]
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check_output(cmd)
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pub_key = '%s.pub' % priv_key
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if not os.path.isfile(pub_key):
|
|
log('Generating missing ssh public key @ %s.' % pub_key)
|
|
cmd = ['ssh-keygen', '-y', '-f', priv_key]
|
|
p = check_output(cmd).decode('UTF-8').strip()
|
|
with open(pub_key, 'wt') as out:
|
|
out.write(p)
|
|
check_output(['chown', '-R', user, ssh_dir])
|
|
|
|
|
|
def set_ppc64_cpu_smt_state(smt_state):
|
|
"""Set ppc64_cpu smt state."""
|
|
|
|
current_smt_state = check_output(['ppc64_cpu', '--smt']).decode('UTF-8')
|
|
# Possible smt state values are integer or 'off'
|
|
# Ex. common ppc64_cpu query command output values:
|
|
# SMT=8
|
|
# -or-
|
|
# SMT is off
|
|
|
|
if 'SMT={}'.format(smt_state) in current_smt_state:
|
|
log('Not changing ppc64_cpu smt state ({})'.format(smt_state))
|
|
elif smt_state == 'off' and 'SMT is off' in current_smt_state:
|
|
log('Not changing ppc64_cpu smt state (already off)')
|
|
else:
|
|
log('Setting ppc64_cpu smt state: {}'.format(smt_state))
|
|
cmd = ['ppc64_cpu', '--smt={}'.format(smt_state)]
|
|
try:
|
|
check_output(cmd)
|
|
except CalledProcessError as e:
|
|
# Known to fail in a container (host must pre-configure smt)
|
|
msg = 'Failed to set ppc64_cpu smt state: {}'.format(smt_state)
|
|
log(msg, level=WARNING)
|
|
status_set('blocked', msg)
|
|
raise e
|
|
|
|
|
|
def import_authorized_keys(user='root', prefix=None):
|
|
"""Import SSH authorized_keys + known_hosts from a cloud-compute relation.
|
|
Store known_hosts in user's $HOME/.ssh and authorized_keys in a path
|
|
specified using authorized-keys-path config option.
|
|
"""
|
|
known_hosts = []
|
|
authorized_keys = []
|
|
if prefix:
|
|
known_hosts_index = relation_get(
|
|
'{}_known_hosts_max_index'.format(prefix))
|
|
if known_hosts_index:
|
|
for index in range(0, int(known_hosts_index)):
|
|
known_hosts.append(relation_get(
|
|
'{}_known_hosts_{}'.format(prefix, index)))
|
|
authorized_keys_index = relation_get(
|
|
'{}_authorized_keys_max_index'.format(prefix))
|
|
if authorized_keys_index:
|
|
for index in range(0, int(authorized_keys_index)):
|
|
authorized_keys.append(relation_get(
|
|
'{}_authorized_keys_{}'.format(prefix, index)))
|
|
else:
|
|
# XXX: Should this be managed via templates + contexts?
|
|
known_hosts_index = relation_get('known_hosts_max_index')
|
|
if known_hosts_index:
|
|
for index in range(0, int(known_hosts_index)):
|
|
known_hosts.append(relation_get(
|
|
'known_hosts_{}'.format(index)))
|
|
authorized_keys_index = relation_get('authorized_keys_max_index')
|
|
if authorized_keys_index:
|
|
for index in range(0, int(authorized_keys_index)):
|
|
authorized_keys.append(relation_get(
|
|
'authorized_keys_{}'.format(index)))
|
|
|
|
# XXX: Should partial return of known_hosts or authorized_keys
|
|
# be allowed ?
|
|
if not len(known_hosts) or not len(authorized_keys):
|
|
return
|
|
homedir = pwd.getpwnam(user).pw_dir
|
|
dest_auth_keys = config('authorized-keys-path').format(
|
|
homedir=homedir, username=user)
|
|
dest_known_hosts = os.path.join(homedir, '.ssh/known_hosts')
|
|
log('Saving new known_hosts file to %s and authorized_keys file to: %s.' %
|
|
(dest_known_hosts, dest_auth_keys))
|
|
|
|
with open(dest_known_hosts, 'wt') as _hosts:
|
|
for index in range(0, int(known_hosts_index)):
|
|
_hosts.write('{}\n'.format(known_hosts[index]))
|
|
with open(dest_auth_keys, 'wt') as _keys:
|
|
for index in range(0, int(authorized_keys_index)):
|
|
_keys.write('{}\n'.format(authorized_keys[index]))
|
|
|
|
|
|
def do_openstack_upgrade(configs):
|
|
# NOTE(jamespage) horrible hack to make utils forget a cached value
|
|
import charmhelpers.contrib.openstack.utils as utils
|
|
utils.os_rel = None
|
|
new_src = config('openstack-origin')
|
|
new_os_rel = get_os_codename_install_source(new_src)
|
|
log('Performing OpenStack upgrade to %s.' % (new_os_rel))
|
|
|
|
configure_installation_source(new_src)
|
|
apt_update(fatal=True)
|
|
|
|
dpkg_opts = [
|
|
'--option', 'Dpkg::Options::=--force-confnew',
|
|
'--option', 'Dpkg::Options::=--force-confdef',
|
|
]
|
|
|
|
apt_upgrade(options=dpkg_opts, fatal=True, dist=True)
|
|
reset_os_release()
|
|
apt_install(determine_packages(), fatal=True)
|
|
|
|
configs.set_release(openstack_release=new_os_rel)
|
|
configs.write_all()
|
|
if not is_unit_paused_set():
|
|
for s in services():
|
|
service_restart(s)
|
|
|
|
|
|
def import_keystone_ca_cert():
|
|
"""If provided, improt the Keystone CA cert that gets forwarded
|
|
to compute nodes via the cloud-compute interface
|
|
"""
|
|
ca_cert = relation_get('ca_cert')
|
|
if not ca_cert:
|
|
return
|
|
log('Writing Keystone CA certificate to %s' % CA_CERT_PATH)
|
|
with open(CA_CERT_PATH, 'wb') as out:
|
|
out.write(b64decode(ca_cert))
|
|
check_call(['update-ca-certificates'])
|
|
|
|
|
|
def create_libvirt_secret(secret_file, secret_uuid, key):
|
|
uri = LIBVIRT_URIS[config('virt-type')]
|
|
cmd = ['virsh', '-c', uri, 'secret-list']
|
|
if secret_uuid in check_output(cmd).decode('UTF-8'):
|
|
old_key = check_output(['virsh', '-c', uri, 'secret-get-value',
|
|
secret_uuid]).decode('UTF-8')
|
|
old_key = old_key.strip()
|
|
if old_key == key:
|
|
log('Libvirt secret already exists for uuid %s.' % secret_uuid,
|
|
level=DEBUG)
|
|
return
|
|
else:
|
|
log('Libvirt secret changed for uuid %s.' % secret_uuid,
|
|
level=INFO)
|
|
log('Defining new libvirt secret for uuid %s.' % secret_uuid)
|
|
cmd = ['virsh', '-c', uri, 'secret-define', '--file', secret_file]
|
|
check_call(cmd)
|
|
cmd = ['virsh', '-c', uri, 'secret-set-value', '--secret', secret_uuid,
|
|
'--base64', key]
|
|
check_call(cmd)
|
|
|
|
|
|
def destroy_libvirt_network(netname):
|
|
"""Delete a network using virsh net-destroy"""
|
|
try:
|
|
out = check_output(['virsh', 'net-list']).decode('UTF-8').splitlines()
|
|
if len(out) < 3:
|
|
return
|
|
|
|
for line in out[2:]:
|
|
res = re.search("^\s+{} ".format(netname), line)
|
|
if res:
|
|
check_call(['virsh', 'net-destroy', netname])
|
|
return
|
|
|
|
except CalledProcessError:
|
|
log("Failed to destroy libvirt network '{}'".format(netname),
|
|
level=WARNING)
|
|
except OSError as e:
|
|
if e.errno == 2:
|
|
log("virsh is unavailable. Virt Type is '{}'. Not attempting to "
|
|
"destroy libvirt network '{}'"
|
|
"".format(config('virt-type'), netname), level=DEBUG)
|
|
else:
|
|
raise e
|
|
|
|
|
|
def configure_lxd(user='nova'):
|
|
''' Configure lxd use for nova user '''
|
|
if not git_install_requested():
|
|
_release = lsb_release()['DISTRIB_CODENAME'].lower()
|
|
if CompareHostReleases(_release) < "vivid":
|
|
raise Exception("LXD is not supported for Ubuntu "
|
|
"versions less than 15.04 (vivid)")
|
|
|
|
configure_subuid(user)
|
|
lxc_list(user)
|
|
|
|
|
|
@retry_on_exception(5, base_delay=2, exc_type=CalledProcessError)
|
|
def lxc_list(user):
|
|
cmd = ['sudo', '-u', user, 'lxc', 'list']
|
|
check_call(cmd)
|
|
|
|
|
|
def configure_subuid(user):
|
|
cmd = ['usermod', '-v', '100000-200000', '-w', '100000-200000', user]
|
|
check_call(cmd)
|
|
|
|
|
|
def enable_shell(user):
|
|
cmd = ['usermod', '-s', '/bin/bash', user]
|
|
check_call(cmd)
|
|
|
|
|
|
def disable_shell(user):
|
|
cmd = ['usermod', '-s', '/bin/false', user]
|
|
check_call(cmd)
|
|
|
|
|
|
def fix_path_ownership(path, user='nova'):
|
|
cmd = ['chown', user, path]
|
|
check_call(cmd)
|
|
|
|
|
|
def assert_charm_supports_ipv6():
|
|
"""Check whether we are able to support charms ipv6."""
|
|
_release = lsb_release()['DISTRIB_CODENAME'].lower()
|
|
if CompareHostReleases(_release) < "trusty":
|
|
raise Exception("IPv6 is not supported in the charms for Ubuntu "
|
|
"versions less than Trusty 14.04")
|
|
|
|
|
|
def git_install(projects_yaml):
|
|
"""Perform setup, and install git repos specified in yaml parameter."""
|
|
if git_install_requested():
|
|
git_pre_install()
|
|
projects_yaml = git_default_repos(projects_yaml)
|
|
git_clone_and_install(projects_yaml, core_project='nova')
|
|
git_post_install(projects_yaml)
|
|
|
|
|
|
def git_pre_install():
|
|
"""Perform pre-install setup."""
|
|
dirs = [
|
|
'/var/lib/nova',
|
|
'/var/lib/nova/buckets',
|
|
'/var/lib/nova/CA',
|
|
'/var/lib/nova/CA/INTER',
|
|
'/var/lib/nova/CA/newcerts',
|
|
'/var/lib/nova/CA/private',
|
|
'/var/lib/nova/CA/reqs',
|
|
'/var/lib/nova/images',
|
|
'/var/lib/nova/instances',
|
|
'/var/lib/nova/keys',
|
|
'/var/lib/nova/networks',
|
|
'/var/lib/nova/tmp',
|
|
'/var/log/nova',
|
|
]
|
|
|
|
logs = [
|
|
'/var/log/nova/nova-api.log',
|
|
'/var/log/nova/nova-compute.log',
|
|
'/var/log/nova/nova-manage.log',
|
|
'/var/log/nova/nova-network.log',
|
|
]
|
|
|
|
adduser('nova', shell='/bin/bash', system_user=True)
|
|
check_call(['usermod', '--home', '/var/lib/nova', 'nova'])
|
|
add_group('nova', system_group=True)
|
|
add_user_to_group('nova', 'nova')
|
|
add_user_to_group('nova', 'libvirtd')
|
|
|
|
for d in dirs:
|
|
mkdir(d, owner='nova', group='nova', perms=0o0755, force=False)
|
|
|
|
for l in logs:
|
|
write_file(l, '', owner='nova', group='nova', perms=0o0644)
|
|
|
|
|
|
def git_post_install(projects_yaml):
|
|
"""Perform post-install setup."""
|
|
http_proxy = git_yaml_value(projects_yaml, 'http_proxy')
|
|
if http_proxy:
|
|
pip_install('libvirt-python', proxy=http_proxy,
|
|
venv=git_pip_venv_dir(projects_yaml))
|
|
else:
|
|
pip_install('libvirt-python',
|
|
venv=git_pip_venv_dir(projects_yaml))
|
|
|
|
src_etc = os.path.join(git_src_dir(projects_yaml, 'nova'), 'etc/nova')
|
|
configs = [
|
|
{'src': src_etc,
|
|
'dest': '/etc/nova'},
|
|
]
|
|
|
|
for c in configs:
|
|
if os.path.exists(c['dest']):
|
|
shutil.rmtree(c['dest'])
|
|
shutil.copytree(c['src'], c['dest'])
|
|
|
|
# NOTE(coreycb): Need to find better solution than bin symlinks.
|
|
symlinks = [
|
|
{'src': os.path.join(git_pip_venv_dir(projects_yaml),
|
|
'bin/nova-rootwrap'),
|
|
'link': '/usr/local/bin/nova-rootwrap'},
|
|
{'src': os.path.join(git_pip_venv_dir(projects_yaml),
|
|
'bin/privsep-helper'),
|
|
'link': '/usr/local/bin/privsep-helper'},
|
|
]
|
|
|
|
for s in symlinks:
|
|
if os.path.lexists(s['link']):
|
|
os.remove(s['link'])
|
|
os.symlink(s['src'], s['link'])
|
|
|
|
virt_type = VIRT_TYPES[config('virt-type')][0]
|
|
nova_compute_conf = 'git/{}.conf'.format(virt_type)
|
|
render(nova_compute_conf, '/etc/nova/nova-compute.conf', {}, perms=0o644)
|
|
render('git/nova_sudoers', '/etc/sudoers.d/nova_sudoers', {}, perms=0o440)
|
|
|
|
bin_dir = os.path.join(git_pip_venv_dir(projects_yaml), 'bin')
|
|
# Use systemd init units/scripts from ubuntu wily onward
|
|
if lsb_release()['DISTRIB_RELEASE'] >= '15.10':
|
|
templates_dir = os.path.join(charm_dir(), 'templates/git')
|
|
daemons = ['nova-api', 'nova-api-metadata', 'nova-compute',
|
|
'nova-network']
|
|
for daemon in daemons:
|
|
nova_compute_context = {
|
|
'daemon_path': os.path.join(bin_dir, daemon),
|
|
}
|
|
template_file = 'git/{}.init.in.template'.format(daemon)
|
|
init_in_file = '{}.init.in'.format(daemon)
|
|
render(template_file, os.path.join(templates_dir, init_in_file),
|
|
nova_compute_context, perms=0o644)
|
|
git_generate_systemd_init_files(templates_dir)
|
|
else:
|
|
service_name = 'nova-compute'
|
|
nova_user = 'nova'
|
|
start_dir = '/var/lib/nova'
|
|
nova_conf = '/etc/nova/nova.conf'
|
|
nova_api_context = {
|
|
'service_description': 'Nova API server',
|
|
'service_name': service_name,
|
|
'user_name': nova_user,
|
|
'start_dir': start_dir,
|
|
'process_name': 'nova-api',
|
|
'executable_name': os.path.join(bin_dir, 'nova-api'),
|
|
'config_files': [nova_conf],
|
|
}
|
|
nova_api_metadata_context = {
|
|
'service_description': 'Nova Metadata API server',
|
|
'service_name': service_name,
|
|
'user_name': nova_user,
|
|
'start_dir': start_dir,
|
|
'process_name': 'nova-api-metadata',
|
|
'executable_name': os.path.join(bin_dir, 'nova-api-metadata'),
|
|
'config_files': [nova_conf],
|
|
}
|
|
nova_compute_context = {
|
|
'service_description': 'Nova compute worker',
|
|
'service_name': service_name,
|
|
'user_name': nova_user,
|
|
'process_name': 'nova-compute',
|
|
'executable_name': os.path.join(bin_dir, 'nova-compute'),
|
|
'config_files': [nova_conf, '/etc/nova/nova-compute.conf'],
|
|
}
|
|
nova_network_context = {
|
|
'service_description': 'Nova network worker',
|
|
'service_name': service_name,
|
|
'user_name': nova_user,
|
|
'start_dir': start_dir,
|
|
'process_name': 'nova-network',
|
|
'executable_name': os.path.join(bin_dir, 'nova-network'),
|
|
'config_files': [nova_conf],
|
|
}
|
|
templates_dir = 'hooks/charmhelpers/contrib/openstack/templates'
|
|
templates_dir = os.path.join(charm_dir(), templates_dir)
|
|
render('git.upstart', '/etc/init/nova-api-metadata.conf',
|
|
nova_api_metadata_context, perms=0o644,
|
|
templates_dir=templates_dir)
|
|
render('git.upstart', '/etc/init/nova-api.conf',
|
|
nova_api_context, perms=0o644,
|
|
templates_dir=templates_dir)
|
|
render('git/upstart/nova-compute.upstart',
|
|
'/etc/init/nova-compute.conf',
|
|
nova_compute_context, perms=0o644)
|
|
render('git.upstart', '/etc/init/nova-network.conf',
|
|
nova_network_context, perms=0o644,
|
|
templates_dir=templates_dir)
|
|
|
|
apt_update()
|
|
apt_install(LATE_GIT_PACKAGES, fatal=True)
|
|
|
|
|
|
def get_hugepage_number():
|
|
# TODO: defaults to 2M - this should probably be configurable
|
|
# and support multiple pool sizes - e.g. 2M and 1G.
|
|
# NOTE(jamespage): 2M in bytes
|
|
hugepage_size = 2048 * 1024
|
|
hugepage_config = config('hugepages')
|
|
hugepages = None
|
|
if hugepage_config:
|
|
if hugepage_config.endswith('%'):
|
|
# NOTE(jamespage): return units of virtual_memory is
|
|
# bytes
|
|
import psutil
|
|
mem = psutil.virtual_memory()
|
|
hugepage_config_pct = hugepage_config.strip('%')
|
|
hugepage_multiplier = float(hugepage_config_pct) / 100
|
|
hugepages = int((mem.total * hugepage_multiplier) / hugepage_size)
|
|
else:
|
|
hugepages = int(hugepage_config)
|
|
return hugepages
|
|
|
|
|
|
def install_hugepages():
|
|
""" Configure hugepages """
|
|
hugepage_config = config('hugepages')
|
|
if hugepage_config:
|
|
mnt_point = '/run/hugepages/kvm'
|
|
hugepage_support(
|
|
'nova',
|
|
mnt_point=mnt_point,
|
|
group='root',
|
|
nr_hugepages=get_hugepage_number(),
|
|
mount=False,
|
|
set_shmmax=True,
|
|
)
|
|
# Remove hugepages entry if present due to Bug #1518771
|
|
Fstab.remove_by_mountpoint(mnt_point)
|
|
if subprocess.call(['mountpoint', mnt_point]):
|
|
service_restart('qemu-kvm')
|
|
rsync(
|
|
charm_dir() + '/files/qemu-hugefsdir',
|
|
'/etc/init.d/qemu-hugefsdir'
|
|
)
|
|
subprocess.check_call('/etc/init.d/qemu-hugefsdir')
|
|
subprocess.check_call(['update-rc.d', 'qemu-hugefsdir', 'defaults'])
|
|
|
|
|
|
def get_optional_relations():
|
|
"""Return a dictionary of optional relations.
|
|
|
|
@returns {relation: relation_name}
|
|
"""
|
|
optional_interfaces = {}
|
|
if relation_ids('ceph'):
|
|
optional_interfaces['storage-backend'] = ['ceph']
|
|
if relation_ids('neutron-plugin'):
|
|
optional_interfaces['neutron-plugin'] = ['neutron-plugin']
|
|
if relation_ids('shared-db') or relation_ids('pgsql-db'):
|
|
optional_interfaces['database'] = ['shared-db', 'pgsql-db']
|
|
return optional_interfaces
|
|
|
|
|
|
def assess_status(configs):
|
|
"""Assess status of current unit
|
|
Decides what the state of the unit should be based on the current
|
|
configuration.
|
|
SIDE EFFECT: calls set_os_workload_status(...) which sets the workload
|
|
status of the unit.
|
|
Also calls status_set(...) directly if paused state isn't complete.
|
|
@param configs: a templating.OSConfigRenderer() object
|
|
@returns None - this function is executed for its side-effect
|
|
"""
|
|
assess_status_func(configs)()
|
|
os_application_version_set(VERSION_PACKAGE)
|
|
|
|
|
|
def assess_status_func(configs):
|
|
"""Helper function to create the function that will assess_status() for
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the unit.
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Uses charmhelpers.contrib.openstack.utils.make_assess_status_func() to
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create the appropriate status function and then returns it.
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Used directly by assess_status() and also for pausing and resuming
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the unit.
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NOTE(ajkavanagh) ports are not checked due to race hazards with services
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that don't behave sychronously w.r.t their service scripts. e.g.
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apache2.
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@param configs: a templating.OSConfigRenderer() object
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@return f() -> None : a function that assesses the unit's workload status
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"""
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required_interfaces = REQUIRED_INTERFACES.copy()
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required_interfaces.update(get_optional_relations())
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return make_assess_status_func(
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configs, required_interfaces,
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services=services(), ports=None)
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def pause_unit_helper(configs):
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"""Helper function to pause a unit, and then call assess_status(...) in
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effect, so that the status is correctly updated.
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Uses charmhelpers.contrib.openstack.utils.pause_unit() to do the work.
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@param configs: a templating.OSConfigRenderer() object
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@returns None - this function is executed for its side-effect
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"""
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_pause_resume_helper(pause_unit, configs)
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def resume_unit_helper(configs):
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"""Helper function to resume a unit, and then call assess_status(...) in
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effect, so that the status is correctly updated.
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Uses charmhelpers.contrib.openstack.utils.resume_unit() to do the work.
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@param configs: a templating.OSConfigRenderer() object
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@returns None - this function is executed for its side-effect
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"""
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_pause_resume_helper(resume_unit, configs)
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def _pause_resume_helper(f, configs):
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"""Helper function that uses the make_assess_status_func(...) from
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charmhelpers.contrib.openstack.utils to create an assess_status(...)
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function that can be used with the pause/resume of the unit
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@param f: the function to be used with the assess_status(...) function
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@returns None - this function is executed for its side-effect
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"""
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# TODO(ajkavanagh) - ports= has been left off because of the race hazard
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# that exists due to service_start()
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f(assess_status_func(configs),
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services=services(),
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ports=None)
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