openstack/charm-glance
Code Issues Proposed changes
456946073a
charm-glance/hooks/glance_utils.py
Liam Young 6c6d491280 Waiting state if broker request is incomplete 
When assessing the charms status check that the current
ceph broker request has been complete. If it has not
put the charm in a 'waiting' state and update the status
message.

Change-Id: I779b6933242ce88cb1577ae11ca258b96ec46b38
Closes-Bug: #1899918
2020-10-15 14:34:57 +00:00

815 lines
28 KiB
Python
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#!/usr/bin/env python3
#
# Copyright 2016 Canonical Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
import os
import subprocess
from itertools import chain
import glance_contexts
from collections import OrderedDict
from charmhelpers.fetch import (
apt_upgrade,
apt_update,
apt_install,
add_source,
apt_autoremove,
apt_purge,
filter_missing_packages)
from charmhelpers.core.hookenv import (
config,
log,
INFO,
WARNING,
relation_ids,
service_name,
)
from charmhelpers.core.host import (
CompareHostReleases,
lsb_release,
mkdir,
service_stop,
service_start,
)
from charmhelpers.contrib.openstack import (
templating,
context,)
from charmhelpers.contrib.hahelpers.cluster import (
is_elected_leader,
get_hacluster_config,
get_managed_services_and_ports,
)
from charmhelpers.contrib.openstack.alternatives import install_alternative
from charmhelpers.contrib.openstack.utils import (
CompareOpenStackReleases,
configure_installation_source,
enable_memcache,
incomplete_relation_data,
is_unit_paused_set,
get_os_codename_install_source,
make_assess_status_func,
os_application_version_set,
os_release,
reset_os_release,
pause_unit,
resume_unit,
token_cache_pkgs,
update_json_file,
set_db_initialised,
)
from charmhelpers.core.decorators import (
retry_on_exception,
)
from charmhelpers.contrib.storage.linux.ceph import (
CephBrokerRq,
is_request_complete,
)
from charmhelpers.contrib.openstack.context import (
CephBlueStoreCompressionContext,
)
from charmhelpers.core.unitdata import kv
CLUSTER_RES = "grp_glance_vips"
PACKAGES = [
"apache2", "glance", "python-mysqldb", "python-swiftclient",
"python-psycopg2", "python-keystone", "uuid", "haproxy", ]
PY3_PACKAGES = [
"python3-glance",
"python3-rados",
"python3-rbd",
"python3-swiftclient",
"python3-cinderclient",
"python3-os-brick",
"python3-oslo.rootwrap",
]
VERSION_PACKAGE = 'glance-common'
SERVICES = [
"glance-api",
"glance-registry",
]
CHARM = "glance"
GLANCE_CONF_DIR = "/etc/glance"
GLANCE_REGISTRY_CONF = "%s/glance-registry.conf" % GLANCE_CONF_DIR
GLANCE_API_CONF = "%s/glance-api.conf" % GLANCE_CONF_DIR
GLANCE_SWIFT_CONF = "%s/glance-swift.conf" % GLANCE_CONF_DIR
GLANCE_REGISTRY_PASTE = os.path.join(GLANCE_CONF_DIR,
'glance-registry-paste.ini')
GLANCE_API_PASTE = os.path.join(GLANCE_CONF_DIR,
'glance-api-paste.ini')
GLANCE_POLICY_FILE = os.path.join(GLANCE_CONF_DIR, "policy.json")
# NOTE(ajkavanagh): from Ussuri, glance switched to policy-in-code; this is the
# policy.yaml file (as there is not packaged policy.json or .yaml) that is used
# to provide the image_location override config value:
# 'restrict-image-location-operations'
GLANCE_POLICY_YAML = os.path.join(GLANCE_CONF_DIR, "policy.yaml")
CEPH_CONF = "/etc/ceph/ceph.conf"
CHARM_CEPH_CONF = '/var/lib/charm/{}/ceph.conf'
HAPROXY_CONF = "/etc/haproxy/haproxy.cfg"
APACHE_PORTS_CONF = '/etc/apache2/ports.conf'
HTTPS_APACHE_CONF = "/etc/apache2/sites-available/openstack_https_frontend"
HTTPS_APACHE_24_CONF = "/etc/apache2/sites-available/" \
"openstack_https_frontend.conf"
APACHE_SSL_DIR = '/etc/apache2/ssl/glance'
MEMCACHED_CONF = '/etc/memcached.conf'
TEMPLATES = 'templates/'
# The interface is said to be satisfied if anyone of the interfaces in the
# list has a complete context.
REQUIRED_INTERFACES = {
'database': ['shared-db'],
'identity': ['identity-service'],
}
def ceph_config_file():
return CHARM_CEPH_CONF.format(service_name())
CONFIG_FILES = OrderedDict([
(GLANCE_REGISTRY_CONF, {
'hook_contexts': [context.SharedDBContext(ssl_dir=GLANCE_CONF_DIR),
context.IdentityServiceContext(
service='glance',
service_user='glance'),
context.SyslogContext(),
glance_contexts.LoggingConfigContext(),
glance_contexts.GlanceIPv6Context(),
context.WorkerConfigContext(),
context.OSConfigFlagContext(
charm_flag='registry-config-flags',
template_flag='registry_config_flags'),
context.MemcacheContext()],
'services': ['glance-registry']
}),
(GLANCE_API_CONF, {
'hook_contexts': [context.SharedDBContext(ssl_dir=GLANCE_CONF_DIR),
context.AMQPContext(ssl_dir=GLANCE_CONF_DIR),
context.IdentityServiceContext(
service='glance',
service_user='glance'),
glance_contexts.GlanceContext(),
glance_contexts.CephGlanceContext(),
glance_contexts.ObjectStoreContext(),
glance_contexts.CinderStoreContext(),
glance_contexts.HAProxyContext(),
context.SyslogContext(),
glance_contexts.LoggingConfigContext(),
glance_contexts.GlanceIPv6Context(),
context.WorkerConfigContext(),
glance_contexts.MultiStoreContext(),
glance_contexts.MultiBackendContext(),
context.OSConfigFlagContext(
charm_flag='api-config-flags',
template_flag='api_config_flags'),
context.InternalEndpointContext(),
context.VolumeAPIContext('glance-common'),
context.SubordinateConfigContext(
interface=['storage-backend'],
service=['glance-api'],
config_file=GLANCE_API_CONF),
context.MemcacheContext()],
'services': ['glance-api']
}),
(GLANCE_SWIFT_CONF, {
'hook_contexts': [glance_contexts.ObjectStoreContext(),
context.IdentityServiceContext(
service='glance',
service_user='glance')],
'services': ['glance-api']
}),
(GLANCE_POLICY_FILE, {
'hook_contexts': [],
'services': ['glance-api', 'glance-registry']
}),
(ceph_config_file(), {
'hook_contexts': [context.CephContext()],
'services': ['glance-api', 'glance-registry']
}),
(HAPROXY_CONF, {
'hook_contexts': [context.HAProxyContext(singlenode_mode=True),
glance_contexts.HAProxyContext()],
'services': ['haproxy'],
}),
(HTTPS_APACHE_CONF, {
'hook_contexts': [glance_contexts.ApacheSSLContext()],
'services': ['apache2'],
}),
(HTTPS_APACHE_24_CONF, {
'hook_contexts': [glance_contexts.ApacheSSLContext()],
'services': ['apache2'],
}),
(APACHE_PORTS_CONF, {
'contexts': [],
'services': ['apache2'],
}),
(GLANCE_POLICY_YAML, {
'hook_contexts': [glance_contexts.GlancePolicyContext()],
'services': [],
}),
])
def register_configs():
# Register config files with their respective contexts.
# Regstration of some configs may not be required depending on
# existing of certain relations.
release = os_release('glance-common')
cmp_release = CompareOpenStackReleases(release)
configs = templating.OSConfigRenderer(templates_dir=TEMPLATES,
openstack_release=release)
confs = [GLANCE_REGISTRY_CONF,
GLANCE_API_CONF,
HAPROXY_CONF]
if relation_ids('ceph'):
mkdir(os.path.dirname(ceph_config_file()))
mkdir(os.path.dirname(CEPH_CONF))
# Install ceph config as an alternative for co-location with
# ceph and ceph-osd charms - glance ceph.conf will be
# lower priority that both of these but thats OK
if not os.path.exists(ceph_config_file()):
# touch file for pre-templated generation
open(ceph_config_file(), 'w').close()
install_alternative(os.path.basename(CEPH_CONF),
CEPH_CONF, ceph_config_file())
confs.append(ceph_config_file())
for conf in confs:
if cmp_release >= 'stein' and conf == GLANCE_REGISTRY_CONF:
continue
configs.register(conf, CONFIG_FILES[conf]['hook_contexts'])
if os.path.exists('/etc/apache2/conf-available'):
configs.register(HTTPS_APACHE_24_CONF,
CONFIG_FILES[HTTPS_APACHE_24_CONF]['hook_contexts'])
else:
configs.register(HTTPS_APACHE_CONF,
CONFIG_FILES[HTTPS_APACHE_CONF]['hook_contexts'])
if enable_memcache(release=release):
configs.register(MEMCACHED_CONF, [context.MemcacheContext()])
if cmp_release >= 'mitaka':
configs.register(GLANCE_SWIFT_CONF,
CONFIG_FILES[GLANCE_SWIFT_CONF]['hook_contexts'])
if cmp_release >= 'ussuri':
configs.register(GLANCE_POLICY_YAML,
CONFIG_FILES[GLANCE_POLICY_YAML]['hook_contexts'])
return configs
def determine_packages():
packages = set(PACKAGES)
packages |= set(token_cache_pkgs(source=config('openstack-origin')))
if CompareOpenStackReleases(os_release(VERSION_PACKAGE)) >= 'rocky':
packages = [p for p in packages if not p.startswith('python-')]
packages.extend(PY3_PACKAGES)
return sorted(packages)
def determine_purge_packages():
'''
Determine list of packages that where previously installed which are no
longer needed.
:returns: list of package names
'''
if CompareOpenStackReleases(os_release('glance')) >= 'rocky':
pkgs = [p for p in PACKAGES if p.startswith('python-')]
pkgs.append('python-glance')
pkgs.append('python-memcache')
pkgs.extend(["python-cinderclient",
"python-os-brick",
"python-oslo.rootwrap"])
if CompareOpenStackReleases(os_release('glance')) >= 'stein':
pkgs.append('glance-registry')
return pkgs
return []
# NOTE(jamespage): Retry deals with sync issues during one-shot HA deploys.
# mysql might be restarting or suchlike.
@retry_on_exception(5, base_delay=3, exc_type=subprocess.CalledProcessError)
def migrate_database():
'''Runs glance-manage to initialize a new database
or migrate existing
'''
cmd = ['glance-manage', 'db_sync']
subprocess.check_call(cmd)
set_db_initialised()
def remove_old_packages():
'''Purge any packages that need ot be removed.
:returns: bool Whether packages were removed.
'''
installed_packages = filter_missing_packages(determine_purge_packages())
if installed_packages:
apt_purge(installed_packages, fatal=True)
apt_autoremove(purge=True, fatal=True)
return bool(installed_packages)
def do_openstack_upgrade(configs):
"""Perform an upgrade of glance. Takes care of upgrading
packages, rewriting configs + database migration and potentially
any other post-upgrade actions.
:param configs: The charms main OSConfigRenderer object.
"""
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)
dpkg_opts = [
'--option', 'Dpkg::Options::=--force-confnew',
'--option', 'Dpkg::Options::=--force-confdef',
]
apt_update()
apt_upgrade(options=dpkg_opts, fatal=True, dist=True)
reset_os_release()
apt_install(determine_packages(), fatal=True)
remove_old_packages()
# set CONFIGS to load templates from new release and regenerate config
configs.set_release(openstack_release=new_os_rel)
configs.write_all()
[service_stop(s) for s in services()]
if is_elected_leader(CLUSTER_RES):
migrate_database()
# Don't start services if the unit is supposed to be paused.
if not is_unit_paused_set():
[service_start(s) for s in services()]
def restart_map():
'''Determine the correct resource map to be passed to
charmhelpers.core.restart_on_change() based on the services configured.
:returns: dict: A dictionary mapping config file to lists of services
that should be restarted when file changes.
'''
_map = []
cmp_release = CompareOpenStackReleases(os_release('glance-common'))
for f, ctxt in CONFIG_FILES.items():
svcs = []
for svc in ctxt['services']:
if cmp_release >= 'stein' and svc == 'glance-registry':
continue
svcs.append(svc)
if svcs:
_map.append((f, svcs))
if enable_memcache(source=config('openstack-origin')):
_map.append((MEMCACHED_CONF, ['memcached']))
if cmp_release >= 'stein':
glance_svcs = ['glance-api']
else:
glance_svcs = ['glance-api', 'glance-registry']
if os.path.isdir(APACHE_SSL_DIR):
_map.append(('{}/*'.format(APACHE_SSL_DIR), glance_svcs + ['apache2']))
return OrderedDict(_map)
def services():
''' Returns a list of (unique) services associate with this charm '''
return list(set(chain(*restart_map().values())))
def deprecated_services():
''' Returns a list of deprecated services with this charm '''
cmp_release = CompareOpenStackReleases(os_release('glance-common'))
if cmp_release >= 'stein':
return ['glance-registry']
return []
def setup_ipv6():
ubuntu_rel = lsb_release()['DISTRIB_CODENAME'].lower()
if CompareHostReleases(ubuntu_rel) < "trusty":
raise Exception("IPv6 is not supported in the charms for Ubuntu "
"versions less than Trusty 14.04")
# Need haproxy >= 1.5.3 for ipv6 so for Trusty if we are <= Kilo we need to
# use trusty-backports otherwise we can use the UCA.
if (ubuntu_rel == 'trusty' and
CompareOpenStackReleases(os_release('glance')) < 'liberty'):
add_source('deb http://archive.ubuntu.com/ubuntu trusty-backports '
'main')
apt_update()
apt_install('haproxy/trusty-backports', fatal=True)
def get_optional_interfaces():
"""Return the optional interfaces that should be checked if the relavent
relations have appeared.
:returns: {general_interface: [specific_int1, specific_int2, ...], ...}
"""
optional_interfaces = {}
if relation_ids('ha'):
optional_interfaces['ha'] = ['cluster']
if (relation_ids('ceph') or relation_ids('object-store') or
relation_ids('cinder-volume-service') or
relation_ids('storage-backend')):
optional_interfaces['storage-backend'] = ['ceph', 'object-store',
'cinder-volume-service',
'storage-backend']
if relation_ids('amqp'):
optional_interfaces['messaging'] = ['amqp']
return optional_interfaces
def check_optional_config_and_relations(configs):
"""Validate optional configuration and relations when present.
This function is called from assess_status/set_os_workload_status as the
charm_func and needs to return either None, None if there is no problem or
the status, message if there is a problem.
:param configs: an OSConfigRender() instance.
:return 2-tuple: (string, string) = (status, message)
"""
# Check that if we have a relation_id for high availability that we can
# get the hacluster config. If we can't then we are blocked.
if relation_ids('ha'):
try:
get_hacluster_config()
except Exception:
return ('blocked',
'hacluster missing configuration: '
'vip, vip_iface, vip_cidr')
if relation_ids('ceph'):
# Check that provided Ceph BlueStoe configuration is valid.
try:
bluestore_compression = context.CephBlueStoreCompressionContext()
bluestore_compression.validate()
except AttributeError:
# The charm does late installation of the `ceph-common` package and
# the class initializer above will throw an exception until it is.
pass
except ValueError as e:
return ('blocked', 'Invalid configuration: {}'.format(str(e)))
# ceph pkgs are only installed after the ceph relation is etablished
# so gate checking broker requests on ceph relation being completed.
if ('ceph' in configs.complete_contexts()
and not is_request_complete(get_ceph_request())):
return ('waiting', 'Ceph broker request incomplete')
# return 'unknown' as the lowest priority to not clobber an existing
# status.
return "unknown", ""
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
the unit.
Uses charmhelpers.contrib.openstack.utils.make_assess_status_func() to
create the appropriate status function and then returns it.
Used directly by assess_status() and also for pausing and resuming
the unit.
NOTE: REQUIRED_INTERFACES is augmented with the optional interfaces
depending on the current config before being passed to the
make_assess_status_func() function.
NOTE(ajkavanagh) ports are not checked due to race hazards with services
that don't behave sychronously w.r.t their service scripts. e.g.
apache2.
@param configs: a templating.OSConfigRenderer() object
@return f() -> None : a function that assesses the unit's workload status
"""
required_interfaces = REQUIRED_INTERFACES.copy()
required_interfaces.update(get_optional_interfaces())
_services, _ = get_managed_services_and_ports(services(), [])
return make_assess_status_func(
configs, required_interfaces,
charm_func=check_optional_config_and_relations,
services=_services, ports=None)
def pause_unit_helper(configs):
"""Helper function to pause a unit, and then call assess_status(...) in
effect, so that the status is correctly updated.
Uses charmhelpers.contrib.openstack.utils.pause_unit() to do the work.
@param configs: a templating.OSConfigRenderer() object
@returns None - this function is executed for its side-effect
"""
_pause_resume_helper(pause_unit, configs)
def resume_unit_helper(configs):
"""Helper function to resume a unit, and then call assess_status(...) in
effect, so that the status is correctly updated.
Uses charmhelpers.contrib.openstack.utils.resume_unit() to do the work.
@param configs: a templating.OSConfigRenderer() object
@returns None - this function is executed for its side-effect
"""
_pause_resume_helper(resume_unit, configs)
def _pause_resume_helper(f, configs):
"""Helper function that uses the make_assess_status_func(...) from
charmhelpers.contrib.openstack.utils to create an assess_status(...)
function that can be used with the pause/resume of the unit
@param f: the function to be used with the assess_status(...) function
@returns None - this function is executed for its side-effect
"""
# TODO(ajkavanagh) - ports= has been left off because of the race hazard
# that exists due to service_start()
_services, _ = get_managed_services_and_ports(services(), [])
f(assess_status_func(configs),
services=_services,
ports=None)
PASTE_INI_MARKER = 'paste-ini-marker'
REINSTALL_OPTIONS = [
'--reinstall',
'--option=Dpkg::Options::=--force-confmiss'
]
def reinstall_paste_ini(force_reinstall=False):
'''
Re-install glance-{api,registry}-paste.ini file from packages
Existing glance-{api,registry}-paste.ini file will be removed
and the original files provided by the packages will be
re-installed.
This will only be performed once per unit unless force_reinstall
is set to True.
'''
db = kv()
reinstall = not db.get(PASTE_INI_MARKER) or force_reinstall
cmp_release = CompareOpenStackReleases(os_release('glance-common'))
if not os.path.exists(GLANCE_REGISTRY_PASTE) and cmp_release < 'rocky':
# See LP: #1812972
reinstall = True
if reinstall:
for paste_file in [GLANCE_REGISTRY_PASTE,
GLANCE_API_PASTE]:
if os.path.exists(paste_file):
os.remove(paste_file)
# glance-registry is deprecated at queens but still
# installed.
if cmp_release < 'rocky':
pkg_list = ['glance-api', 'glance-registry']
# File is in glance-common for py3 packages.
else:
pkg_list = ['glance-common']
apt_install(packages=pkg_list,
options=REINSTALL_OPTIONS,
fatal=True)
db.set(PASTE_INI_MARKER, True)
db.flush()
def is_api_ready(configs):
return (not incomplete_relation_data(configs, REQUIRED_INTERFACES))
def update_image_location_policy(configs=None):
"""Update *_image_location policy to restrict to admin role.
We do this unconditonally and keep a record of the original as installed by
the package.
For ussuri, the charm updates/writes the policy.yaml file. The configs
param is optional as the caller may already be writing all the configs.
From ussuri onwards glance is policy-in-code (rather than using a
policy.json) and, therefore, policy files are essentially all overrides.
From ussuri, this function deletes the policy.json file and alternatively
writes the GLANCE_POLICY_YAML file via the configs object.
:param configs: The configs for the charm
:type configs: Optional[:class:templating.OSConfigRenderer()]
"""
_res = os_release('glance-common')
cmp = CompareOpenStackReleases(_res)
if cmp < 'kilo':
# NOTE(hopem): at the time of writing we are unable to do this for
# earlier than Kilo due to LP: #1502136
return
if cmp >= 'ussuri':
# If the policy.json exists, then remove it as it's the packaged
# version from a previous version of OpenStack, and thus not used.
if os.path.isfile(GLANCE_POLICY_FILE):
try:
os.remove(GLANCE_POLICY_FILE)
except Exception as e:
log("Problem removing file: {}: {}"
.format(GLANCE_POLICY_FILE, str(e)))
# if the caller supplied a configs param then update the
# GLANCE_POLICY_FILE using its context.
if configs is not None:
configs.write(GLANCE_POLICY_YAML)
return
# otherwise the OpenStack release after kilo and before ussuri, so continue
# modifying the existing policy.json file.
db = kv()
policies = ["get_image_location", "set_image_location",
"delete_image_location"]
try:
with open(GLANCE_POLICY_FILE) as f:
pmap = json.load(f)
except IOError as e:
log("Problem opening glance policy file: {}. Error was:{}"
.format(GLANCE_POLICY_FILE, str(e)),
level=WARNING)
return
for policy_key in policies:
# Save original value at time of first install in case we ever need to
# revert.
db_key = "policy_{}".format(policy_key)
if db.get(db_key) is None:
if policy_key in pmap:
db.set(db_key, pmap[policy_key])
db.flush()
else:
log("key '{}' not found in policy file".format(policy_key),
level=INFO)
if config('restrict-image-location-operations'):
policy_value = 'role:admin'
else:
policy_value = ''
new_policies = {k: policy_value for k in policies}
for policy_key, policy_value in new_policies.items():
log("Updating Glance policy file setting policy "
"'{}': '{}'".format(policy_key, policy_value), level=INFO)
update_json_file(GLANCE_POLICY_FILE, new_policies)
def get_ceph_request():
service = service_name()
if config('rbd-pool-name'):
pool_name = config('rbd-pool-name')
else:
pool_name = service
rq = CephBrokerRq()
weight = config('ceph-pool-weight')
replicas = config('ceph-osd-replication-count')
bluestore_compression = CephBlueStoreCompressionContext()
if config('pool-type') == 'erasure-coded':
# General EC plugin config
plugin = config('ec-profile-plugin')
technique = config('ec-profile-technique')
device_class = config('ec-profile-device-class')
metadata_pool_name = (
config('ec-rbd-metadata-pool') or
"{}-metadata".format(service)
)
bdm_k = config('ec-profile-k')
bdm_m = config('ec-profile-m')
# LRC plugin config
bdm_l = config('ec-profile-locality')
crush_locality = config('ec-profile-crush-locality')
# SHEC plugin config
bdm_c = config('ec-profile-durability-estimator')
# CLAY plugin config
bdm_d = config('ec-profile-helper-chunks')
scalar_mds = config('ec-profile-scalar-mds')
# Profile name
profile_name = (
config('ec-profile-name') or "{}-profile".format(service)
)
# Metadata sizing is approximately 1% of overall data weight
# but is in effect driven by the number of rbd's rather than
# their size - so it can be very lightweight.
metadata_weight = weight * 0.01
# Resize data pool weight to accomodate metadata weight
weight = weight - metadata_weight
# Create metadata pool
rq.add_op_create_pool(
name=metadata_pool_name, replica_count=replicas,
weight=metadata_weight, group='images', app_name='rbd'
)
# Create erasure profile
rq.add_op_create_erasure_profile(
name=profile_name,
k=bdm_k, m=bdm_m,
lrc_locality=bdm_l,
lrc_crush_locality=crush_locality,
shec_durability_estimator=bdm_c,
clay_helper_chunks=bdm_d,
clay_scalar_mds=scalar_mds,
device_class=device_class,
erasure_type=plugin,
erasure_technique=technique
)
# Create EC data pool
# NOTE(fnordahl): once we deprecate Python 3.5 support we can do
# the unpacking of the BlueStore compression arguments as part of
# the function arguments. Until then we need to build the dict
# prior to the function call.
kwargs = {
'name': pool_name,
'erasure_profile': profile_name,
'weight': weight,
'group': "images",
'app_name': "rbd",
'allow_ec_overwrites': True,
}
kwargs.update(bluestore_compression.get_kwargs())
rq.add_op_create_erasure_pool(**kwargs)
else:
# NOTE(fnordahl): once we deprecate Python 3.5 support we can do
# the unpacking of the BlueStore compression arguments as part of
# the function arguments. Until then we need to build the dict
# prior to the function call.
kwargs = {
'name': pool_name,
'replica_count': replicas,
'weight': weight,
'group': 'images',
'app_name': 'rbd',
}
kwargs.update(bluestore_compression.get_kwargs())
rq.add_op_create_replicated_pool(**kwargs)
if config('restrict-ceph-pools'):
rq.add_op_request_access_to_group(
name="images",
object_prefix_permissions={'class-read': ['rbd_children']},
permission='rwx')
return rq
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