754 lines
24 KiB
Python
754 lines
24 KiB
Python
import os
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import shutil
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import subprocess
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import uuid
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from collections import OrderedDict
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from copy import copy
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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.hookenv import (
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charm_dir,
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config,
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local_unit,
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relation_get,
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relation_set,
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relation_ids,
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log,
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DEBUG,
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service_name
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)
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from charmhelpers.fetch import (
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apt_upgrade,
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apt_update,
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apt_install,
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add_source
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)
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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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lsb_release,
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mkdir,
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mounts,
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umount,
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service_restart,
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service_stop,
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service_start,
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write_file,
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)
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from charmhelpers.contrib.openstack.alternatives import install_alternative
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from charmhelpers.contrib.hahelpers.cluster import (
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is_elected_leader,
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)
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from charmhelpers.contrib.storage.linux.utils import (
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is_block_device,
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zap_disk,
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is_device_mounted
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)
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from charmhelpers.contrib.storage.linux.lvm import (
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create_lvm_physical_volume,
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create_lvm_volume_group,
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deactivate_lvm_volume_group,
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is_lvm_physical_volume,
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remove_lvm_physical_volume,
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list_lvm_volume_group
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)
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from charmhelpers.contrib.storage.linux.loopback import (
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ensure_loopback_device,
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)
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from charmhelpers.contrib.openstack import (
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templating,
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context,
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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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get_os_codename_install_source,
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git_install_requested,
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git_clone_and_install,
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git_src_dir,
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git_yaml_value,
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git_pip_venv_dir,
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os_release,
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)
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from charmhelpers.core.decorators import (
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retry_on_exception,
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)
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from charmhelpers.core.templating import render
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import cinder_contexts
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COMMON_PACKAGES = [
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'apache2',
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'cinder-common',
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'gdisk',
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'haproxy',
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'librbd1', # bug 1440948 vol-from-img
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'python-jinja2',
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'python-keystoneclient',
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'python-mysqldb',
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'python-psycopg2',
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'qemu-utils',
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]
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API_PACKAGES = ['cinder-api']
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VOLUME_PACKAGES = ['cinder-volume']
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SCHEDULER_PACKAGES = ['cinder-scheduler']
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BASE_GIT_PACKAGES = [
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'libffi-dev',
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'libmysqlclient-dev',
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'libssl-dev',
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'libxml2-dev',
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'libxslt1-dev',
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'libyaml-dev',
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'lvm2',
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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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# ubuntu packages that should not be installed when deploying from source
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GIT_PACKAGE_BLACKLIST = [
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'cinder-api',
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'cinder-common',
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'cinder-scheduler',
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'cinder-volume',
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'python-keystoneclient',
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]
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DEFAULT_LOOPBACK_SIZE = '5G'
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# Cluster resource used to determine leadership when hacluster'd
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CLUSTER_RES = 'grp_cinder_vips'
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CINDER_DB_INIT_RKEY = 'cinder-db-initialised'
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CINDER_DB_INIT_ECHO_RKEY = 'cinder-db-initialised-echo'
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class CinderCharmError(Exception):
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pass
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CINDER_CONF_DIR = "/etc/cinder"
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CINDER_CONF = '%s/cinder.conf' % CINDER_CONF_DIR
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CINDER_API_CONF = '%s/api-paste.ini' % CINDER_CONF_DIR
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CEPH_CONF = '/etc/ceph/ceph.conf'
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CHARM_CEPH_CONF = '/var/lib/charm/{}/ceph.conf'
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HAPROXY_CONF = '/etc/haproxy/haproxy.cfg'
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APACHE_SITE_CONF = '/etc/apache2/sites-available/openstack_https_frontend'
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APACHE_SITE_24_CONF = '/etc/apache2/sites-available/' \
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'openstack_https_frontend.conf'
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TEMPLATES = 'templates/'
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def ceph_config_file():
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return CHARM_CEPH_CONF.format(service_name())
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# Map config files to hook contexts and services that will be associated
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# with file in restart_on_changes()'s service map.
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CONFIG_FILES = OrderedDict([
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(CINDER_CONF, {
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'hook_contexts': [context.SharedDBContext(ssl_dir=CINDER_CONF_DIR),
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context.PostgresqlDBContext(),
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context.AMQPContext(ssl_dir=CINDER_CONF_DIR),
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context.ImageServiceContext(),
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context.OSConfigFlagContext(),
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context.SyslogContext(),
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cinder_contexts.CephContext(),
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cinder_contexts.HAProxyContext(),
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cinder_contexts.ImageServiceContext(),
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context.SubordinateConfigContext(
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interface='storage-backend',
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service='cinder',
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config_file=CINDER_CONF),
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cinder_contexts.StorageBackendContext(),
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cinder_contexts.LoggingConfigContext(),
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context.IdentityServiceContext(
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service='cinder',
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service_user='cinder'),
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context.BindHostContext(),
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context.WorkerConfigContext()],
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'services': ['cinder-api', 'cinder-volume',
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'cinder-scheduler', 'haproxy']
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}),
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(CINDER_API_CONF, {
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'hook_contexts': [context.IdentityServiceContext()],
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'services': ['cinder-api'],
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}),
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(ceph_config_file(), {
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'hook_contexts': [context.CephContext()],
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'services': ['cinder-volume']
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}),
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(HAPROXY_CONF, {
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'hook_contexts': [context.HAProxyContext(singlenode_mode=True),
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cinder_contexts.HAProxyContext()],
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'services': ['haproxy'],
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}),
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(APACHE_SITE_CONF, {
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'hook_contexts': [cinder_contexts.ApacheSSLContext()],
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'services': ['apache2'],
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}),
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(APACHE_SITE_24_CONF, {
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'hook_contexts': [cinder_contexts.ApacheSSLContext()],
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'services': ['apache2'],
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}),
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])
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def register_configs():
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"""Register config files with their respective contexts.
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Regstration of some configs may not be required depending on
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existing of certain relations.
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"""
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# if called without anything installed (eg during install hook)
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# just default to earliest supported release. configs dont get touched
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# till post-install, anyway.
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release = os_release('cinder-common', base='folsom')
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configs = templating.OSConfigRenderer(templates_dir=TEMPLATES,
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openstack_release=release)
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confs = [CINDER_API_CONF,
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CINDER_CONF,
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HAPROXY_CONF]
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if relation_ids('ceph'):
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# need to create this early, new peers will have a relation during
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# registration # before they've run the ceph hooks to create the
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# directory.
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mkdir(os.path.dirname(CEPH_CONF))
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mkdir(os.path.dirname(ceph_config_file()))
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# Install ceph config as an alternative for co-location with
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# ceph and ceph-osd charm - cinder ceph.conf will be
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# lower priority than 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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confs.append(ceph_config_file())
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for conf in confs:
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configs.register(conf, CONFIG_FILES[conf]['hook_contexts'])
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if os.path.exists('/etc/apache2/conf-available'):
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configs.register(APACHE_SITE_24_CONF,
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CONFIG_FILES[APACHE_SITE_24_CONF]['hook_contexts'])
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else:
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configs.register(APACHE_SITE_CONF,
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CONFIG_FILES[APACHE_SITE_CONF]['hook_contexts'])
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return configs
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def juju_log(msg):
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log('[cinder] %s' % msg)
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def determine_packages():
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'''Determine list of packages required for the currently enabled services.
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:returns: list of package names
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'''
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pkgs = copy(COMMON_PACKAGES)
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for s, p in [('api', API_PACKAGES),
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('volume', VOLUME_PACKAGES),
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('scheduler', SCHEDULER_PACKAGES)]:
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if service_enabled(s):
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pkgs += p
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if git_install_requested():
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pkgs.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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pkgs.remove(p)
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return pkgs
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def service_enabled(service):
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'''Determine if a specific cinder service is enabled in
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charm configuration.
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:param service: str: cinder service name to query (volume, scheduler, api,
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all)
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:returns: boolean: True if service is enabled in config, False if not.
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'''
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enabled = config()['enabled-services']
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if enabled == 'all':
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return True
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return service in enabled
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def restart_map():
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'''Determine the correct resource map to be passed to
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charmhelpers.core.restart_on_change() based on the services configured.
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:returns: dict: A dictionary mapping config file to lists of services
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that should be restarted when file changes.
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'''
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_map = []
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for f, ctxt in CONFIG_FILES.iteritems():
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svcs = []
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for svc in ctxt['services']:
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if svc.startswith('cinder-'):
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if service_enabled(svc.split('-')[1]):
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svcs.append(svc)
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else:
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svcs.append(svc)
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if svcs:
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_map.append((f, svcs))
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return OrderedDict(_map)
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def enabled_services():
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m = restart_map()
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svcs = set()
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for t in m.iteritems():
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svcs.update(t[1])
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return list(svcs)
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def services():
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''' Returns a list of services associate with this charm '''
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_services = []
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for v in restart_map().values():
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_services = _services + v
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return list(set(_services))
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def reduce_lvm_volume_group_missing(volume_group):
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'''
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Remove all missing physical volumes from the volume group, if there
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are no logical volumes allocated on them.
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:param volume_group: str: Name of volume group to reduce.
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'''
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subprocess.check_call(['vgreduce', '--removemissing', volume_group])
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def extend_lvm_volume_group(volume_group, block_device):
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'''
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Extend an LVM volume group onto a given block device.
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Assumes block device has already been initialized as an LVM PV.
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:param volume_group: str: Name of volume group to create.
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:block_device: str: Full path of PV-initialized block device.
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'''
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subprocess.check_call(['vgextend', volume_group, block_device])
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def log_lvm_info():
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"""Log some useful information about how LVM is setup."""
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pvscan_output = subprocess.check_output(['pvscan'])
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juju_log('pvscan: %s' % pvscan_output)
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def configure_lvm_storage(block_devices, volume_group, overwrite=False,
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remove_missing=False):
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''' Configure LVM storage on the list of block devices provided
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:param block_devices: list: List of whitelisted block devices to detect
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and use if found
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:param overwrite: bool: Scrub any existing block data if block device is
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not already in-use
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:param remove_missing: bool: Remove missing physical volumes from volume
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group if logical volume not allocated on them
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'''
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log_lvm_info()
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devices = []
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for block_device in block_devices:
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(block_device, size) = _parse_block_device(block_device)
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if not is_device_mounted(block_device):
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if size == 0 and is_block_device(block_device):
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devices.append(block_device)
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elif size > 0:
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devices.append(ensure_loopback_device(block_device, size))
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# NOTE(jamespage)
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# might need todo an initial one-time scrub on install if need be
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vg_found = False
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new_devices = []
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for device in devices:
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if not is_lvm_physical_volume(device):
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# Unused device
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if overwrite is True or not has_partition_table(device):
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prepare_volume(device)
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new_devices.append(device)
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elif (is_lvm_physical_volume(device) and
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list_lvm_volume_group(device) != volume_group):
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# Existing LVM but not part of required VG or new device
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if overwrite is True:
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prepare_volume(device)
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new_devices.append(device)
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elif (is_lvm_physical_volume(device) and
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list_lvm_volume_group(device) == volume_group):
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# Mark vg as found
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vg_found = True
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log_lvm_info()
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if vg_found is False and len(new_devices) > 0:
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# Create new volume group from first device
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create_lvm_volume_group(volume_group, new_devices[0])
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new_devices.remove(new_devices[0])
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# Remove missing physical volumes from volume group
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if remove_missing:
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reduce_lvm_volume_group_missing(volume_group)
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if len(new_devices) > 0:
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# Extend the volume group as required
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for new_device in new_devices:
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extend_lvm_volume_group(volume_group, new_device)
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log_lvm_info()
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def prepare_volume(device):
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clean_storage(device)
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create_lvm_physical_volume(device)
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def has_partition_table(block_device):
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out = subprocess.check_output(['fdisk', '-l', block_device],
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stderr=subprocess.STDOUT)
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return "doesn't contain a valid partition" not in out
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def clean_storage(block_device):
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'''Ensures a block device is clean. That is:
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- unmounted
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- any lvm volume groups are deactivated
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- any lvm physical device signatures removed
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- partition table wiped
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:param block_device: str: Full path to block device to clean.
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'''
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for mp, d in mounts():
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if d == block_device:
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juju_log('clean_storage(): Found %s mounted @ %s, unmounting.' %
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(d, mp))
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umount(mp, persist=True)
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if is_lvm_physical_volume(block_device):
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deactivate_lvm_volume_group(block_device)
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remove_lvm_physical_volume(block_device)
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zap_disk(block_device)
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def _parse_block_device(block_device):
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''' Parse a block device string and return either the full path
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to the block device, or the path to a loopback device and its size
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:param: block_device: str: Block device as provided in configuration
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:returns: (str, int): Full path to block device and 0 OR
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Full path to loopback device and required size
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'''
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_none = ['None', 'none', None]
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if block_device in _none:
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return (None, 0)
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if block_device.startswith('/dev/'):
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return (block_device, 0)
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elif block_device.startswith('/'):
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_bd = block_device.split('|')
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if len(_bd) == 2:
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bdev, size = _bd
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else:
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bdev = block_device
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size = DEFAULT_LOOPBACK_SIZE
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return (bdev, size)
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else:
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return ('/dev/{}'.format(block_device), 0)
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def check_db_initialised():
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"""Check if we have received db init'd notify and restart services if we
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have not already.
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"""
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settings = relation_get() or {}
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if settings:
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init_id = settings.get(CINDER_DB_INIT_RKEY)
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echoed_init_id = relation_get(unit=local_unit(),
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attribute=CINDER_DB_INIT_ECHO_RKEY)
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if (init_id and init_id != echoed_init_id and
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local_unit() not in init_id):
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log("Restarting cinder services following db initialisation",
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level=DEBUG)
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for svc in enabled_services():
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service_restart(svc)
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# Set echo
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relation_set(**{CINDER_DB_INIT_ECHO_RKEY: init_id})
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# NOTE(jamespage): Retry deals with sync issues during one-shot HA deploys.
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# mysql might be restarting or suchlike.
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@retry_on_exception(5, base_delay=3, exc_type=subprocess.CalledProcessError)
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def migrate_database():
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'Runs cinder-manage to initialize a new database or migrate existing'
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cmd = ['cinder-manage', 'db', 'sync']
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subprocess.check_call(cmd)
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# Notify peers so that services get restarted
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log("Notifying peer(s) that db is initialised and restarting services",
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level=DEBUG)
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for r_id in relation_ids('cluster'):
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for svc in enabled_services():
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service_restart(svc)
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id = "%s-%s" % (local_unit(), uuid.uuid4())
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relation_set(relation_id=r_id, **{CINDER_DB_INIT_RKEY: id})
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def set_ceph_env_variables(service):
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# XXX: Horrid kludge to make cinder-volume use
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# a different ceph username than admin
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env = open('/etc/environment', 'r').read()
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if 'CEPH_ARGS' not in env:
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with open('/etc/environment', 'a') as out:
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out.write('CEPH_ARGS="--id %s"\n' % service)
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with open('/etc/init/cinder-volume.override', 'w') as out:
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out.write('env CEPH_ARGS="--id %s"\n' % service)
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def do_openstack_upgrade(configs):
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"""Perform an uprade of cinder. Takes care of upgrading
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packages, rewriting configs + database migration and
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|
potentially any other post-upgrade actions.
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|
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:param configs: The charms main OSConfigRenderer object.
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|
|
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"""
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new_src = config('openstack-origin')
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new_os_rel = get_os_codename_install_source(new_src)
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juju_log('Performing OpenStack upgrade to %s.' % (new_os_rel))
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configure_installation_source(new_src)
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dpkg_opts = [
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'--option', 'Dpkg::Options::=--force-confnew',
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'--option', 'Dpkg::Options::=--force-confdef',
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]
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apt_update()
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apt_upgrade(options=dpkg_opts, fatal=True, dist=True)
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apt_install(determine_packages(), fatal=True)
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|
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# set CONFIGS to load templates from new release and regenerate config
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configs.set_release(openstack_release=new_os_rel)
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configs.write_all()
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# Stop/start services and migrate DB if leader
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[service_stop(s) for s in services()]
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if is_elected_leader(CLUSTER_RES):
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migrate_database()
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[service_start(s) for s in services()]
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|
|
|
|
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def setup_ipv6():
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ubuntu_rel = lsb_release()['DISTRIB_CODENAME'].lower()
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if ubuntu_rel < "trusty":
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raise Exception("IPv6 is not supported in the charms for Ubuntu "
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|
"versions less than Trusty 14.04")
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|
|
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# NOTE(xianghui): Need to install haproxy(1.5.3) from trusty-backports
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|
# to support ipv6 address, so check is required to make sure not
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# breaking other versions, IPv6 only support for >= Trusty
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|
if ubuntu_rel == 'trusty':
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add_source('deb http://archive.ubuntu.com/ubuntu trusty-backports'
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|
' main')
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|
apt_update()
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apt_install('haproxy/trusty-backports', fatal=True)
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|
|
|
|
|
def git_install(projects_yaml):
|
|
"""Perform setup, and install git repos specified in yaml parameter."""
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|
if git_install_requested():
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|
git_pre_install()
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|
git_clone_and_install(projects_yaml, core_project='cinder')
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|
git_post_install(projects_yaml)
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|
|
|
|
|
def git_pre_install():
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|
"""Perform cinder pre-install setup."""
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dirs = [{'path': '/etc/tgt',
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'owner': 'cinder',
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'group': 'cinder',
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'perms': 0750,
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|
},
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|
{'path': '/var/lib/cinder',
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|
'owner': 'cinder',
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'group': 'cinder',
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|
'perms': 0755,
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},
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|
{'path': '/var/lib/cinder/volumes',
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|
'owner': 'cinder',
|
|
'group': 'cinder',
|
|
'perms': 0750,
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|
},
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|
{'path': '/var/lock/cinder',
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|
'owner': 'cinder',
|
|
'group': 'root',
|
|
'perms': 0750,
|
|
},
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|
{'path': '/var/log/cinder',
|
|
'owner': 'cinder',
|
|
'group': 'cinder',
|
|
'perms': 0750,
|
|
}]
|
|
|
|
logs = [
|
|
'/var/log/cinder/cinder-api.log',
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|
'/var/log/cinder/cinder-backup.log',
|
|
'/var/log/cinder/cinder-scheduler.log',
|
|
'/var/log/cinder/cinder-volume.log',
|
|
]
|
|
|
|
adduser('cinder', shell='/bin/bash', system_user=True)
|
|
add_group('cinder', system_group=True)
|
|
add_user_to_group('cinder', 'cinder')
|
|
|
|
for d in dirs:
|
|
mkdir(d['path'], owner=d['owner'], group=d['group'], perms=d['perms'],
|
|
force=False)
|
|
|
|
for l in logs:
|
|
write_file(l, '', owner='cinder', group='cinder', perms=0600)
|
|
|
|
|
|
def git_post_install(projects_yaml):
|
|
"""Perform cinder post-install setup."""
|
|
http_proxy = git_yaml_value(projects_yaml, 'http_proxy')
|
|
base_packages = ['mysql-python']
|
|
for pkg in base_packages:
|
|
if http_proxy:
|
|
pip_install(pkg, proxy=http_proxy,
|
|
venv=git_pip_venv_dir(projects_yaml))
|
|
else:
|
|
pip_install(pkg,
|
|
venv=git_pip_venv_dir(projects_yaml))
|
|
|
|
src_etc = os.path.join(git_src_dir(projects_yaml, 'cinder'), 'etc/cinder')
|
|
configs = {
|
|
'src': src_etc,
|
|
'dest': '/etc/cinder',
|
|
}
|
|
|
|
if os.path.exists(configs['dest']):
|
|
shutil.rmtree(configs['dest'])
|
|
shutil.copytree(configs['src'], configs['dest'])
|
|
|
|
# NOTE(coreycb): Need to find better solution than bin symlinks.
|
|
symlinks = [
|
|
{'src': os.path.join(git_pip_venv_dir(projects_yaml),
|
|
'bin/cinder-manage'),
|
|
'link': '/usr/local/bin/cinder-manage'},
|
|
{'src': os.path.join(git_pip_venv_dir(projects_yaml),
|
|
'bin/cinder-rootwrap'),
|
|
'link': '/usr/local/bin/cinder-rootwrap'},
|
|
# NOTE(coreycb): This is ugly but couldn't find pypi package that
|
|
# installs rbd.py and rados.py.
|
|
{'src': '/usr/lib/python2.7/dist-packages/rbd.py',
|
|
'link': os.path.join(git_pip_venv_dir(projects_yaml),
|
|
'lib/python2.7/site-packages/rbd.py')},
|
|
{'src': '/usr/lib/python2.7/dist-packages/rados.py',
|
|
'link': os.path.join(git_pip_venv_dir(projects_yaml),
|
|
'lib/python2.7/site-packages/rados.py')},
|
|
]
|
|
|
|
for s in symlinks:
|
|
if os.path.lexists(s['link']):
|
|
os.remove(s['link'])
|
|
os.symlink(s['src'], s['link'])
|
|
|
|
render('cinder.conf', '/etc/cinder/cinder.conf', {}, owner='cinder',
|
|
group='cinder', perms=0o644)
|
|
render('git/cinder_tgt.conf', '/etc/tgt/conf.d', {}, owner='cinder',
|
|
group='cinder', perms=0o644)
|
|
render('git/logging.conf', '/etc/cinder/logging.conf', {}, owner='cinder',
|
|
group='cinder', perms=0o644)
|
|
render('git/cinder_sudoers', '/etc/sudoers.d/cinder_sudoers', {},
|
|
owner='root', group='root', perms=0o440)
|
|
|
|
os.chmod('/etc/sudoers.d', 0o750)
|
|
|
|
bin_dir = os.path.join(git_pip_venv_dir(projects_yaml), 'bin')
|
|
cinder_api_context = {
|
|
'service_description': 'Cinder API server',
|
|
'service_name': 'Cinder',
|
|
'user_name': 'cinder',
|
|
'start_dir': '/var/lib/cinder',
|
|
'process_name': 'cinder-api',
|
|
'executable_name': os.path.join(bin_dir, 'cinder-api'),
|
|
'config_files': ['/etc/cinder/cinder.conf'],
|
|
'log_file': '/var/log/cinder/cinder-api.log',
|
|
}
|
|
|
|
cinder_backup_context = {
|
|
'service_description': 'Cinder backup server',
|
|
'service_name': 'Cinder',
|
|
'user_name': 'cinder',
|
|
'start_dir': '/var/lib/cinder',
|
|
'process_name': 'cinder-backup',
|
|
'executable_name': os.path.join(bin_dir, 'cinder-backup'),
|
|
'config_files': ['/etc/cinder/cinder.conf'],
|
|
'log_file': '/var/log/cinder/cinder-backup.log',
|
|
}
|
|
|
|
cinder_scheduler_context = {
|
|
'service_description': 'Cinder scheduler server',
|
|
'service_name': 'Cinder',
|
|
'user_name': 'cinder',
|
|
'start_dir': '/var/lib/cinder',
|
|
'process_name': 'cinder-scheduler',
|
|
'executable_name': os.path.join(bin_dir, 'cinder-scheduler'),
|
|
'config_files': ['/etc/cinder/cinder.conf'],
|
|
'log_file': '/var/log/cinder/cinder-scheduler.log',
|
|
}
|
|
|
|
cinder_volume_context = {
|
|
'service_description': 'Cinder volume server',
|
|
'service_name': 'Cinder',
|
|
'user_name': 'cinder',
|
|
'start_dir': '/var/lib/cinder',
|
|
'process_name': 'cinder-volume',
|
|
'executable_name': os.path.join(bin_dir, 'cinder-volume'),
|
|
'config_files': ['/etc/cinder/cinder.conf'],
|
|
'log_file': '/var/log/cinder/cinder-volume.log',
|
|
}
|
|
|
|
# NOTE(coreycb): Needs systemd support
|
|
templates_dir = 'hooks/charmhelpers/contrib/openstack/templates'
|
|
templates_dir = os.path.join(charm_dir(), templates_dir)
|
|
render('git.upstart', '/etc/init/cinder-api.conf',
|
|
cinder_api_context, perms=0o644, templates_dir=templates_dir)
|
|
render('git.upstart', '/etc/init/cinder-backup.conf',
|
|
cinder_backup_context, perms=0o644, templates_dir=templates_dir)
|
|
render('git.upstart', '/etc/init/cinder-scheduler.conf',
|
|
cinder_scheduler_context, perms=0o644, templates_dir=templates_dir)
|
|
render('git.upstart', '/etc/init/cinder-volume.conf',
|
|
cinder_volume_context, perms=0o644, templates_dir=templates_dir)
|
|
|
|
service_restart('tgtd')
|
|
|
|
[service_restart(s) for s in services()]
|