/
nova_cc_utils.py
1424 lines (1210 loc) · 47.6 KB
/
nova_cc_utils.py
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# 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 os
import shutil
import subprocess
import ConfigParser
from base64 import b64encode
from collections import OrderedDict
from copy import deepcopy
from charmhelpers.contrib.openstack import context, templating
from charmhelpers.contrib.hahelpers.cluster import (
is_elected_leader,
get_hacluster_config,
)
from charmhelpers.contrib.peerstorage import (
peer_retrieve,
peer_store,
)
from charmhelpers.contrib.python.packages import (
pip_install,
)
from charmhelpers.contrib.openstack.utils import (
configure_installation_source,
get_host_ip,
get_hostname,
get_os_codename_install_source,
git_clone_and_install,
git_default_repos,
git_generate_systemd_init_files,
git_install_requested,
git_pip_venv_dir,
git_src_dir,
git_yaml_value,
incomplete_relation_data,
is_ip,
os_release,
save_script_rc as _save_script_rc,
is_unit_paused_set,
make_assess_status_func,
pause_unit,
resume_unit,
os_application_version_set,
token_cache_pkgs,
enable_memcache,
)
from charmhelpers.fetch import (
apt_upgrade,
apt_update,
apt_install,
add_source,
filter_installed_packages
)
from charmhelpers.core.hookenv import (
charm_dir,
config,
log,
relation_get,
relation_ids,
remote_unit,
DEBUG,
INFO,
ERROR,
status_set,
related_units,
local_unit,
)
from charmhelpers.core.host import (
adduser,
add_group,
add_user_to_group,
mkdir,
service,
service_pause,
service_resume,
service_running,
service_start,
service_stop,
lsb_release,
)
from charmhelpers.core.templating import render
from charmhelpers.contrib.network.ip import (
is_ipv6,
ns_query,
)
from charmhelpers.core.decorators import (
retry_on_exception,
)
import nova_cc_context
TEMPLATES = 'templates/'
CLUSTER_RES = 'grp_nova_vips'
# The interface is said to be satisfied if anyone of the interfaces in the
# list has a complete context.
REQUIRED_INTERFACES = {
'database': ['shared-db', 'pgsql-db'],
'messaging': ['amqp', 'zeromq-configuration'],
'identity': ['identity-service'],
'image': ['image-service'],
'compute': ['nova-compute'],
}
# removed from original: charm-helper-sh
BASE_PACKAGES = [
'apache2',
'haproxy',
'python-keystoneclient',
'python-mysqldb',
'python-psycopg2',
'python-psutil',
'python-six',
'uuid',
'python-memcache',
]
VERSION_PACKAGE = 'nova-common'
BASE_GIT_PACKAGES = [
'libffi-dev',
'libmysqlclient-dev',
'libssl-dev',
'libxml2-dev',
'libxslt1-dev',
'libyaml-dev',
'openstack-pkg-tools',
'python-dev',
'python-pip',
'python-setuptools',
'zlib1g-dev',
]
LATE_GIT_PACKAGES = [
'novnc',
'spice-html5',
'websockify',
]
# ubuntu packages that should not be installed when deploying from git
GIT_PACKAGE_BLACKLIST = [
'neutron-common',
'neutron-server',
'neutron-plugin-ml2',
'nova-api-ec2',
'nova-api-os-compute',
'nova-api-os-volume',
'nova-cert',
'nova-conductor',
'nova-consoleauth',
'nova-novncproxy',
'nova-objectstore',
'nova-scheduler',
'nova-spiceproxy',
'nova-xvpvncproxy',
'python-keystoneclient',
'python-six',
'quantum-server',
]
BASE_SERVICES = [
'nova-api-ec2',
'nova-api-os-compute',
'nova-objectstore',
'nova-cert',
'nova-scheduler',
'nova-conductor',
]
AWS_COMPAT_SERVICES = ['nova-api-ec2', 'nova-objectstore']
SERVICE_BLACKLIST = {
'liberty': AWS_COMPAT_SERVICES
}
API_PORTS = {
'nova-api-ec2': 8773,
'nova-api-os-compute': 8774,
'nova-api-os-volume': 8776,
'nova-objectstore': 3333,
}
NOVA_CONF_DIR = "/etc/nova"
NEUTRON_CONF_DIR = "/etc/neutron"
NOVA_CONF = '%s/nova.conf' % NOVA_CONF_DIR
NOVA_API_PASTE = '%s/api-paste.ini' % NOVA_CONF_DIR
HAPROXY_CONF = '/etc/haproxy/haproxy.cfg'
APACHE_CONF = '/etc/apache2/sites-available/openstack_https_frontend'
APACHE_24_CONF = '/etc/apache2/sites-available/openstack_https_frontend.conf'
MEMCACHED_CONF = '/etc/memcached.conf'
def resolve_services():
_services = deepcopy(BASE_SERVICES)
os_rel = os_release('nova-common')
for release in SERVICE_BLACKLIST:
if os_rel >= release or config('disable-aws-compat'):
[_services.remove(service)
for service in SERVICE_BLACKLIST[release]]
return _services
BASE_RESOURCE_MAP = OrderedDict([
(NOVA_CONF, {
'services': resolve_services(),
'contexts': [context.AMQPContext(ssl_dir=NOVA_CONF_DIR),
context.SharedDBContext(
relation_prefix='nova', ssl_dir=NOVA_CONF_DIR),
context.OSConfigFlagContext(
charm_flag='nova-alchemy-flags',
template_flag='nova_alchemy_flags'),
nova_cc_context.NovaPostgresqlDBContext(),
context.ImageServiceContext(),
context.OSConfigFlagContext(),
context.SubordinateConfigContext(
interface='nova-vmware',
service='nova',
config_file=NOVA_CONF),
nova_cc_context.NovaCellContext(),
context.SyslogContext(),
context.LogLevelContext(),
nova_cc_context.HAProxyContext(),
nova_cc_context.IdentityServiceContext(
service='nova',
service_user='nova'),
nova_cc_context.VolumeServiceContext(),
context.ZeroMQContext(),
context.NotificationDriverContext(),
nova_cc_context.NovaIPv6Context(),
nova_cc_context.NeutronCCContext(),
nova_cc_context.NovaConfigContext(),
nova_cc_context.InstanceConsoleContext(),
nova_cc_context.ConsoleSSLContext(),
nova_cc_context.CloudComputeContext(),
context.InternalEndpointContext(),
nova_cc_context.NeutronAPIContext(),
nova_cc_context.SerialConsoleContext(),
context.MemcacheContext()],
}),
(NOVA_API_PASTE, {
'services': [s for s in resolve_services() if 'api' in s],
'contexts': [nova_cc_context.IdentityServiceContext(),
nova_cc_context.APIRateLimitingContext()],
}),
(HAPROXY_CONF, {
'contexts': [context.HAProxyContext(singlenode_mode=True),
nova_cc_context.HAProxyContext()],
'services': ['haproxy'],
}),
(APACHE_CONF, {
'contexts': [nova_cc_context.ApacheSSLContext()],
'services': ['apache2'],
}),
(APACHE_24_CONF, {
'contexts': [nova_cc_context.ApacheSSLContext()],
'services': ['apache2'],
}),
])
CA_CERT_PATH = '/usr/local/share/ca-certificates/keystone_juju_ca_cert.crt'
NOVA_SSH_DIR = '/etc/nova/compute_ssh/'
CONSOLE_CONFIG = {
'spice': {
'packages': ['nova-spiceproxy', 'nova-consoleauth'],
'services': ['nova-spiceproxy', 'nova-consoleauth'],
'proxy-page': '/spice_auto.html',
'proxy-port': 6082,
},
'novnc': {
'packages': ['nova-novncproxy', 'nova-consoleauth'],
'services': ['nova-novncproxy', 'nova-consoleauth'],
'proxy-page': '/vnc_auto.html',
'proxy-port': 6080,
},
'xvpvnc': {
'packages': ['nova-xvpvncproxy', 'nova-consoleauth'],
'services': ['nova-xvpvncproxy', 'nova-consoleauth'],
'proxy-page': '/console',
'proxy-port': 6081,
},
}
SERIAL_CONSOLE = {
'packages': ['nova-serialproxy', 'nova-consoleauth',
'websockify'],
'services': ['nova-serialproxy', 'nova-consoleauth'],
}
def resource_map():
'''
Dynamically generate a map of resources that will be managed for a single
hook execution.
'''
resource_map = deepcopy(BASE_RESOURCE_MAP)
if os.path.exists('/etc/apache2/conf-available'):
resource_map.pop(APACHE_CONF)
else:
resource_map.pop(APACHE_24_CONF)
resource_map[NOVA_CONF]['contexts'].append(
nova_cc_context.NeutronCCContext())
release = os_release('nova-common')
if release >= 'mitaka':
resource_map[NOVA_CONF]['contexts'].append(
nova_cc_context.NovaAPISharedDBContext(relation_prefix='novaapi',
database='nova_api',
ssl_dir=NOVA_CONF_DIR)
)
if console_attributes('services'):
resource_map[NOVA_CONF]['services'] += \
console_attributes('services')
if (config('enable-serial-console') and release >= 'juno'):
resource_map[NOVA_CONF]['services'] += \
SERIAL_CONSOLE['services']
# also manage any configs that are being updated by subordinates.
vmware_ctxt = context.SubordinateConfigContext(interface='nova-vmware',
service='nova',
config_file=NOVA_CONF)
vmware_ctxt = vmware_ctxt()
if vmware_ctxt and 'services' in vmware_ctxt:
for s in vmware_ctxt['services']:
if s not in resource_map[NOVA_CONF]['services']:
resource_map[NOVA_CONF]['services'].append(s)
if enable_memcache(release=release):
resource_map[MEMCACHED_CONF] = {
'contexts': [context.MemcacheContext()],
'services': ['memcached']}
return resource_map
def register_configs(release=None):
release = release or os_release('nova-common')
configs = templating.OSConfigRenderer(templates_dir=TEMPLATES,
openstack_release=release)
for cfg, rscs in resource_map().iteritems():
configs.register(cfg, rscs['contexts'])
return configs
def restart_map():
return OrderedDict([(cfg, v['services'])
for cfg, v in resource_map().iteritems()
if v['services']])
def services():
''' Returns a list of services associate with this charm '''
_services = []
for v in restart_map().values():
_services = _services + v
return list(set(_services))
def determine_ports():
'''Assemble a list of API ports for services we are managing'''
ports = []
for services in restart_map().values():
for svc in services:
try:
ports.append(API_PORTS[svc])
except KeyError:
pass
return list(set(ports))
def api_port(service):
return API_PORTS[service]
def console_attributes(attr, proto=None):
'''Leave proto unset to query attributes of the protocal specified at
runtime'''
if proto:
console_proto = proto
else:
console_proto = config('console-access-protocol')
if attr == 'protocol':
return console_proto
# 'vnc' is a virtual type made up of novnc and xvpvnc
if console_proto == 'vnc':
if attr in ['packages', 'services']:
return list(set(CONSOLE_CONFIG['novnc'][attr] +
CONSOLE_CONFIG['xvpvnc'][attr]))
else:
return None
if console_proto in CONSOLE_CONFIG:
return CONSOLE_CONFIG[console_proto][attr]
return None
def determine_packages():
# currently all packages match service names
packages = deepcopy(BASE_PACKAGES)
for v in resource_map().values():
packages.extend(v['services'])
if console_attributes('packages'):
packages.extend(console_attributes('packages'))
if (config('enable-serial-console') and
os_release('nova-common') >= 'juno'):
packages.extend(SERIAL_CONSOLE['packages'])
if git_install_requested():
packages = list(set(packages))
packages.extend(BASE_GIT_PACKAGES)
# don't include packages that will be installed from git
for p in GIT_PACKAGE_BLACKLIST:
if p in packages:
packages.remove(p)
packages.extend(token_cache_pkgs(source=config('openstack-origin')))
return list(set(packages))
def save_script_rc():
env_vars = {
'OPENSTACK_PORT_MCASTPORT': config('ha-mcastport'),
'OPENSTACK_SERVICE_API_EC2': 'nova-api-ec2',
'OPENSTACK_SERVICE_API_OS_COMPUTE': 'nova-api-os-compute',
'OPENSTACK_SERVICE_CERT': 'nova-cert',
'OPENSTACK_SERVICE_CONDUCTOR': 'nova-conductor',
'OPENSTACK_SERVICE_OBJECTSTORE': 'nova-objectstore',
'OPENSTACK_SERVICE_SCHEDULER': 'nova-scheduler',
}
if relation_ids('nova-volume-service'):
env_vars['OPENSTACK_SERVICE_API_OS_VOL'] = 'nova-api-os-volume'
_save_script_rc(**env_vars)
def get_step_upgrade_source(new_src):
'''
Determine if upgrade skips a release and, if so, return source
of skipped release.
'''
sources = {
# target_src: (cur_pocket, step_src)
# NOTE: cur_pocket == * means all upgrades to target_src must step
# through step_src if step_src is higher than
# current release
'precise-icehouse': ('precise-updates/grizzly',
'cloud:precise-havana'),
'precise-icehouse/proposed': ('precise-proposed/grizzly',
'cloud:precise-havana/proposed'),
'trusty-liberty': ('*', 'cloud:trusty-kilo'),
}
try:
os_codename = get_os_codename_install_source(new_src)
ubuntu_series = lsb_release()['DISTRIB_CODENAME'].lower()
cur_pocket, step_src = sources['%s-%s' % (ubuntu_series, os_codename)]
current_src = os_release('nova-common')
step_src_codename = get_os_codename_install_source(step_src)
if cur_pocket == '*' and step_src_codename > current_src:
return step_src
except KeyError:
pass
configure_installation_source(new_src)
# charmhelpers.contrib.openstack.utils.configure_installation_source()
# configures the repository in juju_deb.list, while
# charmhelpers.fetch.add_sources() uses cloud-archive.list, so both
# files need to read looking for the currently configured repo.
for fname in ['cloud-archive.list', 'juju_deb.list']:
fpath = os.path.join('/etc/apt/sources.list.d/', fname)
if not os.path.isfile(fpath):
log('Missing %s skipping it' % fpath, level=DEBUG)
continue
with open(fpath, 'r') as f:
line = f.readline()
for target_src, (cur_pocket, step_src) in sources.items():
if target_src != new_src:
continue
if cur_pocket in line:
return step_src
return None
POLICY_RC_D = """#!/bin/bash
set -e
case $1 in
nova-*)
[ $2 = "start" ] && exit 101
;;
*)
;;
esac
exit 0
"""
def enable_policy_rcd():
with open('/usr/sbin/policy-rc.d', 'w') as policy:
policy.write(POLICY_RC_D)
os.chmod('/usr/sbin/policy-rc.d', 0o755)
def disable_policy_rcd():
os.unlink('/usr/sbin/policy-rc.d')
def reset_os_release():
# Ugly hack to make os_release re-read versions
import charmhelpers.contrib.openstack.utils as utils
utils.os_rel = None
def is_db_initialised():
if relation_ids('cluster'):
dbsync_state = peer_retrieve('dbsync_state')
if dbsync_state == 'complete':
log("Database is initialised", level=DEBUG)
return True
log("Database is NOT initialised", level=DEBUG)
return False
def _do_openstack_upgrade(new_src):
enable_policy_rcd()
# All upgrades to Liberty are forced to step through Kilo. Liberty does
# not have the migrate_flavor_data option (Bug #1511466) available so it
# must be done pre-upgrade
if os_release('nova-common') == 'kilo' and is_elected_leader(CLUSTER_RES):
migrate_nova_flavors()
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(fatal=True)
apt_upgrade(options=dpkg_opts, fatal=True, dist=True)
apt_install(determine_packages(), fatal=True)
disable_policy_rcd()
# NOTE(jamespage) upgrade with existing config files as the
# havana->icehouse migration enables new service_plugins which
# create issues with db upgrades
reset_os_release()
configs = register_configs(release=new_os_rel)
configs.write_all()
if new_os_rel >= 'mitaka' and not database_setup(prefix='novaapi'):
# NOTE: Defer service restarts and database migrations for now
# as nova_api database is not yet created
if (relation_ids('cluster') and
is_elected_leader(CLUSTER_RES)):
# NOTE: reset dbsync state so that migration will complete
# when the nova_api database is setup.
peer_store('dbsync_state', None)
return configs
if is_elected_leader(CLUSTER_RES):
status_set('maintenance', 'Running nova db migration')
migrate_nova_database()
if not is_unit_paused_set():
[service_start(s) for s in services()]
return configs
def database_setup(prefix):
'''
Determine when a specific database is setup
and access is granted to the local unit.
This function only checks the MySQL shared-db
relation name using the provided prefix.
'''
key = '{}_allowed_units'.format(prefix)
for db_rid in relation_ids('shared-db'):
for unit in related_units(db_rid):
allowed_units = relation_get(key, rid=db_rid, unit=unit)
if allowed_units and local_unit() in allowed_units.split():
return True
return False
def do_openstack_upgrade(configs):
new_src = config('openstack-origin')
step_src = get_step_upgrade_source(new_src)
if step_src is not None:
_do_openstack_upgrade(step_src)
return _do_openstack_upgrade(new_src)
@retry_on_exception(5, base_delay=3, exc_type=subprocess.CalledProcessError)
def migrate_nova_flavors():
'''Runs nova-manage to migrate flavor data if needed'''
log('Migrating nova flavour information in database.', level=INFO)
cmd = ['nova-manage', 'db', 'migrate_flavor_data']
subprocess.check_output(cmd)
# 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_nova_database():
'''Runs nova-manage to initialize a new database or migrate existing'''
log('Migrating the nova database.', level=INFO)
cmd = ['nova-manage', 'db', 'sync']
subprocess.check_output(cmd)
if os_release('nova-common') >= 'mitaka':
log('Migrating the nova-api database.', level=INFO)
cmd = ['nova-manage', 'api_db', 'sync']
subprocess.check_output(cmd)
if relation_ids('cluster'):
log('Informing peers that dbsync is complete', level=INFO)
peer_store('dbsync_state', 'complete')
log('Enabling services', level=INFO)
enable_services()
cmd_all_services('start')
# TODO: refactor to use unit storage or related data
def auth_token_config(setting):
"""
Returns currently configured value for setting in api-paste.ini's
authtoken section, or None.
"""
config = ConfigParser.RawConfigParser()
config.read('/etc/nova/api-paste.ini')
try:
value = config.get('filter:authtoken', setting)
except:
return None
if value.startswith('%'):
return None
return value
def keystone_ca_cert_b64():
'''Returns the local Keystone-provided CA cert if it exists, or None.'''
if not os.path.isfile(CA_CERT_PATH):
return None
with open(CA_CERT_PATH) as _in:
return b64encode(_in.read())
def ssh_directory_for_unit(unit=None, user=None):
if unit:
remote_service = unit.split('/')[0]
else:
remote_service = remote_unit().split('/')[0]
if user:
remote_service = "{}_{}".format(remote_service, user)
_dir = os.path.join(NOVA_SSH_DIR, remote_service)
for d in [NOVA_SSH_DIR, _dir]:
if not os.path.isdir(d):
os.mkdir(d)
for f in ['authorized_keys', 'known_hosts']:
f = os.path.join(_dir, f)
if not os.path.isfile(f):
open(f, 'w').close()
return _dir
def known_hosts(unit=None, user=None):
return os.path.join(ssh_directory_for_unit(unit, user), 'known_hosts')
def authorized_keys(unit=None, user=None):
return os.path.join(ssh_directory_for_unit(unit, user), 'authorized_keys')
def ssh_known_host_key(host, unit=None, user=None):
cmd = ['ssh-keygen', '-f', known_hosts(unit, user), '-H', '-F', host]
try:
# The first line of output is like '# Host xx found: line 1 type RSA',
# which should be excluded.
output = subprocess.check_output(cmd).strip()
except subprocess.CalledProcessError:
return None
if output:
# Bug #1500589 cmd has 0 rc on precise if entry not present
lines = output.split('\n')
if len(lines) > 1:
return lines[1]
return None
def remove_known_host(host, unit=None, user=None):
log('Removing SSH known host entry for compute host at %s' % host)
cmd = ['ssh-keygen', '-f', known_hosts(unit, user), '-R', host]
subprocess.check_call(cmd)
def is_same_key(key_1, key_2):
# The key format get will be like '|1|2rUumCavEXWVaVyB5uMl6m85pZo=|Cp'
# 'EL6l7VTY37T/fg/ihhNb/GPgs= ssh-rsa AAAAB', we only need to compare
# the part start with 'ssh-rsa' followed with '= ', because the hash
# value in the beginning will change each time.
k_1 = key_1.split('= ')[1]
k_2 = key_2.split('= ')[1]
return k_1 == k_2
def add_known_host(host, unit=None, user=None):
'''Add variations of host to a known hosts file.'''
cmd = ['ssh-keyscan', '-H', '-t', 'rsa', host]
try:
remote_key = subprocess.check_output(cmd).strip()
except Exception as e:
log('Could not obtain SSH host key from %s' % host, level=ERROR)
raise e
current_key = ssh_known_host_key(host, unit, user)
if current_key and remote_key:
if is_same_key(remote_key, current_key):
log('Known host key for compute host %s up to date.' % host)
return
else:
remove_known_host(host, unit, user)
log('Adding SSH host key to known hosts for compute node at %s.' % host)
with open(known_hosts(unit, user), 'a') as out:
out.write(remote_key + '\n')
def ssh_authorized_key_exists(public_key, unit=None, user=None):
with open(authorized_keys(unit, user)) as keys:
return (' %s ' % public_key) in keys.read()
def add_authorized_key(public_key, unit=None, user=None):
with open(authorized_keys(unit, user), 'a') as keys:
keys.write(public_key + '\n')
def ssh_compute_add(public_key, rid=None, unit=None, user=None):
# If remote compute node hands us a hostname, ensure we have a
# known hosts entry for its IP, hostname and FQDN.
private_address = relation_get(rid=rid, unit=unit,
attribute='private-address')
hosts = [private_address]
if not is_ipv6(private_address):
if relation_get('hostname'):
hosts.append(relation_get('hostname'))
if not is_ip(private_address):
hosts.append(get_host_ip(private_address))
short = private_address.split('.')[0]
if ns_query(short):
hosts.append(short)
else:
hn = get_hostname(private_address)
if hn:
hosts.append(hn)
short = hn.split('.')[0]
if ns_query(short):
hosts.append(short)
for host in list(set(hosts)):
add_known_host(host, unit, user)
if not ssh_authorized_key_exists(public_key, unit, user):
log('Saving SSH authorized key for compute host at %s.' %
private_address)
add_authorized_key(public_key, unit, user)
def ssh_known_hosts_lines(unit=None, user=None):
known_hosts_list = []
with open(known_hosts(unit, user)) as hosts:
for hosts_line in hosts:
if hosts_line.rstrip():
known_hosts_list.append(hosts_line.rstrip())
return(known_hosts_list)
def ssh_authorized_keys_lines(unit=None, user=None):
authorized_keys_list = []
with open(authorized_keys(unit, user)) as keys:
for authkey_line in keys:
if authkey_line.rstrip():
authorized_keys_list.append(authkey_line.rstrip())
return(authorized_keys_list)
def ssh_compute_remove(public_key, unit=None, user=None):
if not (os.path.isfile(authorized_keys(unit, user)) or
os.path.isfile(known_hosts(unit, user))):
return
with open(authorized_keys(unit, user)) as _keys:
keys = [k.strip() for k in _keys.readlines()]
if public_key not in keys:
return
[keys.remove(key) for key in keys if key == public_key]
with open(authorized_keys(unit, user), 'w') as _keys:
keys = '\n'.join(keys)
if not keys.endswith('\n'):
keys += '\n'
_keys.write(keys)
def determine_endpoints(public_url, internal_url, admin_url):
'''Generates a dictionary containing all relevant endpoints to be
passed to keystone as relation settings.'''
region = config('region')
os_rel = os_release('nova-common')
nova_public_url = ('%s:%s/v2/$(tenant_id)s' %
(public_url, api_port('nova-api-os-compute')))
nova_internal_url = ('%s:%s/v2/$(tenant_id)s' %
(internal_url, api_port('nova-api-os-compute')))
nova_admin_url = ('%s:%s/v2/$(tenant_id)s' %
(admin_url, api_port('nova-api-os-compute')))
ec2_public_url = '%s:%s/services/Cloud' % (
public_url, api_port('nova-api-ec2'))
ec2_internal_url = '%s:%s/services/Cloud' % (
internal_url, api_port('nova-api-ec2'))
ec2_admin_url = '%s:%s/services/Cloud' % (admin_url,
api_port('nova-api-ec2'))
s3_public_url = '%s:%s' % (public_url, api_port('nova-objectstore'))
s3_internal_url = '%s:%s' % (internal_url, api_port('nova-objectstore'))
s3_admin_url = '%s:%s' % (admin_url, api_port('nova-objectstore'))
# the base endpoints
endpoints = {
'nova_service': 'nova',
'nova_region': region,
'nova_public_url': nova_public_url,
'nova_admin_url': nova_admin_url,
'nova_internal_url': nova_internal_url,
'ec2_service': 'ec2',
'ec2_region': region,
'ec2_public_url': ec2_public_url,
'ec2_admin_url': ec2_admin_url,
'ec2_internal_url': ec2_internal_url,
's3_service': 's3',
's3_region': region,
's3_public_url': s3_public_url,
's3_admin_url': s3_admin_url,
's3_internal_url': s3_internal_url,
}
if os_rel >= 'kilo':
# NOTE(jamespage) drop endpoints for ec2 and s3
# ec2 is deprecated
# s3 is insecure and should die in flames
endpoints.update({
'ec2_service': None,
'ec2_region': None,
'ec2_public_url': None,
'ec2_admin_url': None,
'ec2_internal_url': None,
's3_service': None,
's3_region': None,
's3_public_url': None,
's3_admin_url': None,
's3_internal_url': None,
})
return endpoints
def guard_map():
'''Map of services and required interfaces that must be present before
the service should be allowed to start'''
gmap = {}
nova_services = resolve_services()
if os_release('nova-common') not in ['essex', 'folsom']:
nova_services.append('nova-conductor')
nova_interfaces = ['identity-service', 'amqp']
if relation_ids('pgsql-nova-db'):
nova_interfaces.append('pgsql-nova-db')
else:
nova_interfaces.append('shared-db')
for svc in nova_services:
gmap[svc] = nova_interfaces
return gmap
def service_guard(guard_map, contexts, active=False):
'''Inhibit services in guard_map from running unless
required interfaces are found complete in contexts.'''
def wrap(f):
def wrapped_f(*args):
if active is True:
incomplete_services = []
for svc in guard_map:
for interface in guard_map[svc]:
if interface not in contexts.complete_contexts():
incomplete_services.append(svc)
f(*args)
for svc in incomplete_services:
if service_running(svc):
log('Service {} has unfulfilled '
'interface requirements, stopping.'.format(svc))
service_stop(svc)
else:
f(*args)
return wrapped_f
return wrap
def get_topics():
topics = ['scheduler', 'conductor']
if 'nova-consoleauth' in services():
topics.append('consoleauth')
return topics
def cmd_all_services(cmd):
if is_unit_paused_set():
log('Unit is in paused state, not issuing {} to all'
'services'.format(cmd))
return
if cmd == 'start':
for svc in services():
if not service_running(svc):
service_start(svc)
else:
for svc in services():
service(cmd, svc)
def disable_services():
for svc in services():
with open('/etc/init/{}.override'.format(svc), 'wb') as out:
out.write('exec true\n')
def enable_services():
for svc in services():
override_file = '/etc/init/{}.override'.format(svc)
if os.path.isfile(override_file):
os.remove(override_file)
def setup_ipv6():
ubuntu_rel = lsb_release()['DISTRIB_CODENAME'].lower()
if 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 os_release('nova-api') < 'liberty':
add_source('deb http://archive.ubuntu.com/ubuntu trusty-backports '
'main')
apt_update()
apt_install('haproxy/trusty-backports', fatal=True)
def git_install(projects_yaml):