707 lines
21 KiB
Python
707 lines
21 KiB
Python
#!/usr/bin/python
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# Copyright 2014-2015 Canonical Limited.
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#
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# This file is part of charm-helpers.
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#
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# charm-helpers is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License version 3 as
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# published by the Free Software Foundation.
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#
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# charm-helpers is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
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# Common python helper functions used for OpenStack charms.
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from collections import OrderedDict
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from functools import wraps
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import subprocess
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import json
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import os
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import sys
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import six
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import yaml
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from charmhelpers.contrib.network import ip
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from charmhelpers.core import (
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unitdata,
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)
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from charmhelpers.core.hookenv import (
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config,
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log as juju_log,
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charm_dir,
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INFO,
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relation_ids,
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relation_set
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)
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from charmhelpers.contrib.storage.linux.lvm import (
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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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)
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from charmhelpers.contrib.network.ip import (
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get_ipv6_addr
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)
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from charmhelpers.contrib.python.packages import (
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pip_create_virtualenv,
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pip_install,
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)
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from charmhelpers.core.host import lsb_release, mounts, umount
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from charmhelpers.fetch import apt_install, apt_cache, install_remote
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from charmhelpers.contrib.storage.linux.utils import is_block_device, zap_disk
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from charmhelpers.contrib.storage.linux.loopback import ensure_loopback_device
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CLOUD_ARCHIVE_URL = "http://ubuntu-cloud.archive.canonical.com/ubuntu"
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CLOUD_ARCHIVE_KEY_ID = '5EDB1B62EC4926EA'
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DISTRO_PROPOSED = ('deb http://archive.ubuntu.com/ubuntu/ %s-proposed '
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'restricted main multiverse universe')
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UBUNTU_OPENSTACK_RELEASE = OrderedDict([
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('oneiric', 'diablo'),
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('precise', 'essex'),
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('quantal', 'folsom'),
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('raring', 'grizzly'),
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('saucy', 'havana'),
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('trusty', 'icehouse'),
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('utopic', 'juno'),
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('vivid', 'kilo'),
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('wily', 'liberty'),
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])
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OPENSTACK_CODENAMES = OrderedDict([
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('2011.2', 'diablo'),
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('2012.1', 'essex'),
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('2012.2', 'folsom'),
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('2013.1', 'grizzly'),
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('2013.2', 'havana'),
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('2014.1', 'icehouse'),
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('2014.2', 'juno'),
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('2015.1', 'kilo'),
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('2015.2', 'liberty'),
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])
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# The ugly duckling
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SWIFT_CODENAMES = OrderedDict([
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('1.4.3', 'diablo'),
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('1.4.8', 'essex'),
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('1.7.4', 'folsom'),
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('1.8.0', 'grizzly'),
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('1.7.7', 'grizzly'),
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('1.7.6', 'grizzly'),
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('1.10.0', 'havana'),
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('1.9.1', 'havana'),
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('1.9.0', 'havana'),
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('1.13.1', 'icehouse'),
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('1.13.0', 'icehouse'),
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('1.12.0', 'icehouse'),
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('1.11.0', 'icehouse'),
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('2.0.0', 'juno'),
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('2.1.0', 'juno'),
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('2.2.0', 'juno'),
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('2.2.1', 'kilo'),
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('2.2.2', 'kilo'),
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('2.3.0', 'liberty'),
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])
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DEFAULT_LOOPBACK_SIZE = '5G'
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def error_out(msg):
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juju_log("FATAL ERROR: %s" % msg, level='ERROR')
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sys.exit(1)
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def get_os_codename_install_source(src):
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'''Derive OpenStack release codename from a given installation source.'''
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ubuntu_rel = lsb_release()['DISTRIB_CODENAME']
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rel = ''
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if src is None:
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return rel
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if src in ['distro', 'distro-proposed']:
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try:
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rel = UBUNTU_OPENSTACK_RELEASE[ubuntu_rel]
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except KeyError:
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e = 'Could not derive openstack release for '\
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'this Ubuntu release: %s' % ubuntu_rel
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error_out(e)
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return rel
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if src.startswith('cloud:'):
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ca_rel = src.split(':')[1]
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ca_rel = ca_rel.split('%s-' % ubuntu_rel)[1].split('/')[0]
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return ca_rel
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# Best guess match based on deb string provided
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if src.startswith('deb') or src.startswith('ppa'):
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for k, v in six.iteritems(OPENSTACK_CODENAMES):
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if v in src:
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return v
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def get_os_version_install_source(src):
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codename = get_os_codename_install_source(src)
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return get_os_version_codename(codename)
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def get_os_codename_version(vers):
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'''Determine OpenStack codename from version number.'''
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try:
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return OPENSTACK_CODENAMES[vers]
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except KeyError:
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e = 'Could not determine OpenStack codename for version %s' % vers
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error_out(e)
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def get_os_version_codename(codename):
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'''Determine OpenStack version number from codename.'''
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for k, v in six.iteritems(OPENSTACK_CODENAMES):
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if v == codename:
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return k
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e = 'Could not derive OpenStack version for '\
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'codename: %s' % codename
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error_out(e)
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def get_os_codename_package(package, fatal=True):
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'''Derive OpenStack release codename from an installed package.'''
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import apt_pkg as apt
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cache = apt_cache()
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try:
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pkg = cache[package]
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except:
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if not fatal:
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return None
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# the package is unknown to the current apt cache.
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e = 'Could not determine version of package with no installation '\
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'candidate: %s' % package
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error_out(e)
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if not pkg.current_ver:
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if not fatal:
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return None
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# package is known, but no version is currently installed.
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e = 'Could not determine version of uninstalled package: %s' % package
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error_out(e)
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vers = apt.upstream_version(pkg.current_ver.ver_str)
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try:
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if 'swift' in pkg.name:
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swift_vers = vers[:5]
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if swift_vers not in SWIFT_CODENAMES:
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# Deal with 1.10.0 upward
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swift_vers = vers[:6]
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return SWIFT_CODENAMES[swift_vers]
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else:
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vers = vers[:6]
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return OPENSTACK_CODENAMES[vers]
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except KeyError:
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e = 'Could not determine OpenStack codename for version %s' % vers
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error_out(e)
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def get_os_version_package(pkg, fatal=True):
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'''Derive OpenStack version number from an installed package.'''
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codename = get_os_codename_package(pkg, fatal=fatal)
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if not codename:
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return None
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if 'swift' in pkg:
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vers_map = SWIFT_CODENAMES
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else:
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vers_map = OPENSTACK_CODENAMES
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for version, cname in six.iteritems(vers_map):
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if cname == codename:
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return version
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# e = "Could not determine OpenStack version for package: %s" % pkg
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# error_out(e)
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os_rel = None
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def os_release(package, base='essex'):
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'''
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Returns OpenStack release codename from a cached global.
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If the codename can not be determined from either an installed package or
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the installation source, the earliest release supported by the charm should
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be returned.
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'''
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global os_rel
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if os_rel:
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return os_rel
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os_rel = (get_os_codename_package(package, fatal=False) or
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get_os_codename_install_source(config('openstack-origin')) or
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base)
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return os_rel
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def import_key(keyid):
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cmd = "apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 " \
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"--recv-keys %s" % keyid
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try:
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subprocess.check_call(cmd.split(' '))
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except subprocess.CalledProcessError:
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error_out("Error importing repo key %s" % keyid)
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def configure_installation_source(rel):
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'''Configure apt installation source.'''
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if rel == 'distro':
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return
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elif rel == 'distro-proposed':
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ubuntu_rel = lsb_release()['DISTRIB_CODENAME']
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with open('/etc/apt/sources.list.d/juju_deb.list', 'w') as f:
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f.write(DISTRO_PROPOSED % ubuntu_rel)
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elif rel[:4] == "ppa:":
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src = rel
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subprocess.check_call(["add-apt-repository", "-y", src])
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elif rel[:3] == "deb":
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l = len(rel.split('|'))
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if l == 2:
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src, key = rel.split('|')
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juju_log("Importing PPA key from keyserver for %s" % src)
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import_key(key)
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elif l == 1:
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src = rel
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with open('/etc/apt/sources.list.d/juju_deb.list', 'w') as f:
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f.write(src)
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elif rel[:6] == 'cloud:':
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ubuntu_rel = lsb_release()['DISTRIB_CODENAME']
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rel = rel.split(':')[1]
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u_rel = rel.split('-')[0]
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ca_rel = rel.split('-')[1]
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if u_rel != ubuntu_rel:
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e = 'Cannot install from Cloud Archive pocket %s on this Ubuntu '\
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'version (%s)' % (ca_rel, ubuntu_rel)
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error_out(e)
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if 'staging' in ca_rel:
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# staging is just a regular PPA.
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os_rel = ca_rel.split('/')[0]
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ppa = 'ppa:ubuntu-cloud-archive/%s-staging' % os_rel
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cmd = 'add-apt-repository -y %s' % ppa
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subprocess.check_call(cmd.split(' '))
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return
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# map charm config options to actual archive pockets.
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pockets = {
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'folsom': 'precise-updates/folsom',
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'folsom/updates': 'precise-updates/folsom',
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'folsom/proposed': 'precise-proposed/folsom',
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'grizzly': 'precise-updates/grizzly',
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'grizzly/updates': 'precise-updates/grizzly',
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'grizzly/proposed': 'precise-proposed/grizzly',
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'havana': 'precise-updates/havana',
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'havana/updates': 'precise-updates/havana',
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'havana/proposed': 'precise-proposed/havana',
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'icehouse': 'precise-updates/icehouse',
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'icehouse/updates': 'precise-updates/icehouse',
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'icehouse/proposed': 'precise-proposed/icehouse',
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'juno': 'trusty-updates/juno',
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'juno/updates': 'trusty-updates/juno',
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'juno/proposed': 'trusty-proposed/juno',
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'kilo': 'trusty-updates/kilo',
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'kilo/updates': 'trusty-updates/kilo',
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'kilo/proposed': 'trusty-proposed/kilo',
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'liberty': 'trusty-updates/liberty',
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'liberty/updates': 'trusty-updates/liberty',
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'liberty/proposed': 'trusty-proposed/liberty',
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}
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try:
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pocket = pockets[ca_rel]
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except KeyError:
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e = 'Invalid Cloud Archive release specified: %s' % rel
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error_out(e)
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src = "deb %s %s main" % (CLOUD_ARCHIVE_URL, pocket)
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apt_install('ubuntu-cloud-keyring', fatal=True)
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with open('/etc/apt/sources.list.d/cloud-archive.list', 'w') as f:
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f.write(src)
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else:
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error_out("Invalid openstack-release specified: %s" % rel)
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def config_value_changed(option):
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"""
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Determine if config value changed since last call to this function.
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"""
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hook_data = unitdata.HookData()
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with hook_data():
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db = unitdata.kv()
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current = config(option)
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saved = db.get(option)
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db.set(option, current)
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if saved is None:
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return False
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return current != saved
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def save_script_rc(script_path="scripts/scriptrc", **env_vars):
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"""
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Write an rc file in the charm-delivered directory containing
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exported environment variables provided by env_vars. Any charm scripts run
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outside the juju hook environment can source this scriptrc to obtain
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updated config information necessary to perform health checks or
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service changes.
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"""
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juju_rc_path = "%s/%s" % (charm_dir(), script_path)
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if not os.path.exists(os.path.dirname(juju_rc_path)):
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os.mkdir(os.path.dirname(juju_rc_path))
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with open(juju_rc_path, 'wb') as rc_script:
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rc_script.write(
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"#!/bin/bash\n")
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[rc_script.write('export %s=%s\n' % (u, p))
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for u, p in six.iteritems(env_vars) if u != "script_path"]
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def openstack_upgrade_available(package):
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"""
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Determines if an OpenStack upgrade is available from installation
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source, based on version of installed package.
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:param package: str: Name of installed package.
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:returns: bool: : Returns True if configured installation source offers
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a newer version of package.
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"""
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import apt_pkg as apt
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src = config('openstack-origin')
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cur_vers = get_os_version_package(package)
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available_vers = get_os_version_install_source(src)
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apt.init()
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return apt.version_compare(available_vers, cur_vers) == 1
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def ensure_block_device(block_device):
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'''
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Confirm block_device, create as loopback if necessary.
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:param block_device: str: Full path of block device to ensure.
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:returns: str: Full path of ensured block device.
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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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error_out('prepare_storage(): Missing required input: block_device=%s.'
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% block_device)
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if block_device.startswith('/dev/'):
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bdev = block_device
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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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bdev = ensure_loopback_device(bdev, size)
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else:
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bdev = '/dev/%s' % block_device
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if not is_block_device(bdev):
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error_out('Failed to locate valid block device at %s' % bdev)
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return bdev
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def clean_storage(block_device):
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'''
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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(): %s is mounted @ %s, unmounting.' %
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(d, mp), level=INFO)
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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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else:
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zap_disk(block_device)
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is_ip = ip.is_ip
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ns_query = ip.ns_query
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get_host_ip = ip.get_host_ip
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get_hostname = ip.get_hostname
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def get_matchmaker_map(mm_file='/etc/oslo/matchmaker_ring.json'):
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mm_map = {}
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if os.path.isfile(mm_file):
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with open(mm_file, 'r') as f:
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mm_map = json.load(f)
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return mm_map
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def sync_db_with_multi_ipv6_addresses(database, database_user,
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relation_prefix=None):
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hosts = get_ipv6_addr(dynamic_only=False)
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kwargs = {'database': database,
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'username': database_user,
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'hostname': json.dumps(hosts)}
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if relation_prefix:
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for key in list(kwargs.keys()):
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kwargs["%s_%s" % (relation_prefix, key)] = kwargs[key]
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del kwargs[key]
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for rid in relation_ids('shared-db'):
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relation_set(relation_id=rid, **kwargs)
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def os_requires_version(ostack_release, pkg):
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"""
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Decorator for hook to specify minimum supported release
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"""
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def wrap(f):
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@wraps(f)
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def wrapped_f(*args):
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if os_release(pkg) < ostack_release:
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raise Exception("This hook is not supported on releases"
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" before %s" % ostack_release)
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f(*args)
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return wrapped_f
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return wrap
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def git_install_requested():
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"""
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Returns true if openstack-origin-git is specified.
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"""
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return config('openstack-origin-git') is not None
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requirements_dir = None
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def _git_yaml_load(projects_yaml):
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"""
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Load the specified yaml into a dictionary.
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"""
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if not projects_yaml:
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return None
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return yaml.load(projects_yaml)
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def git_clone_and_install(projects_yaml, core_project, depth=1):
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"""
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Clone/install all specified OpenStack repositories.
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The expected format of projects_yaml is:
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repositories:
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- {name: keystone,
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repository: 'git://git.openstack.org/openstack/keystone.git',
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branch: 'stable/icehouse'}
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- {name: requirements,
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repository: 'git://git.openstack.org/openstack/requirements.git',
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branch: 'stable/icehouse'}
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directory: /mnt/openstack-git
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http_proxy: squid-proxy-url
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https_proxy: squid-proxy-url
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The directory, http_proxy, and https_proxy keys are optional.
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"""
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global requirements_dir
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parent_dir = '/mnt/openstack-git'
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http_proxy = None
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projects = _git_yaml_load(projects_yaml)
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_git_validate_projects_yaml(projects, core_project)
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|
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old_environ = dict(os.environ)
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|
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if 'http_proxy' in projects.keys():
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http_proxy = projects['http_proxy']
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os.environ['http_proxy'] = projects['http_proxy']
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if 'https_proxy' in projects.keys():
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os.environ['https_proxy'] = projects['https_proxy']
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|
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if 'directory' in projects.keys():
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parent_dir = projects['directory']
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|
|
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pip_create_virtualenv(os.path.join(parent_dir, 'venv'))
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|
|
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# Upgrade setuptools and pip from default virtualenv versions. The default
|
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# versions in trusty break master OpenStack branch deployments.
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for p in ['pip', 'setuptools']:
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pip_install(p, upgrade=True, proxy=http_proxy,
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venv=os.path.join(parent_dir, 'venv'))
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|
|
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for p in projects['repositories']:
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repo = p['repository']
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branch = p['branch']
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if p['name'] == 'requirements':
|
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repo_dir = _git_clone_and_install_single(repo, branch, depth,
|
|
parent_dir, http_proxy,
|
|
update_requirements=False)
|
|
requirements_dir = repo_dir
|
|
else:
|
|
repo_dir = _git_clone_and_install_single(repo, branch, depth,
|
|
parent_dir, http_proxy,
|
|
update_requirements=True)
|
|
|
|
os.environ = old_environ
|
|
|
|
|
|
def _git_validate_projects_yaml(projects, core_project):
|
|
"""
|
|
Validate the projects yaml.
|
|
"""
|
|
_git_ensure_key_exists('repositories', projects)
|
|
|
|
for project in projects['repositories']:
|
|
_git_ensure_key_exists('name', project.keys())
|
|
_git_ensure_key_exists('repository', project.keys())
|
|
_git_ensure_key_exists('branch', project.keys())
|
|
|
|
if projects['repositories'][0]['name'] != 'requirements':
|
|
error_out('{} git repo must be specified first'.format('requirements'))
|
|
|
|
if projects['repositories'][-1]['name'] != core_project:
|
|
error_out('{} git repo must be specified last'.format(core_project))
|
|
|
|
|
|
def _git_ensure_key_exists(key, keys):
|
|
"""
|
|
Ensure that key exists in keys.
|
|
"""
|
|
if key not in keys:
|
|
error_out('openstack-origin-git key \'{}\' is missing'.format(key))
|
|
|
|
|
|
def _git_clone_and_install_single(repo, branch, depth, parent_dir, http_proxy,
|
|
update_requirements):
|
|
"""
|
|
Clone and install a single git repository.
|
|
"""
|
|
dest_dir = os.path.join(parent_dir, os.path.basename(repo))
|
|
|
|
if not os.path.exists(parent_dir):
|
|
juju_log('Directory already exists at {}. '
|
|
'No need to create directory.'.format(parent_dir))
|
|
os.mkdir(parent_dir)
|
|
|
|
if not os.path.exists(dest_dir):
|
|
juju_log('Cloning git repo: {}, branch: {}'.format(repo, branch))
|
|
repo_dir = install_remote(repo, dest=parent_dir, branch=branch,
|
|
depth=depth)
|
|
else:
|
|
repo_dir = dest_dir
|
|
|
|
venv = os.path.join(parent_dir, 'venv')
|
|
|
|
if update_requirements:
|
|
if not requirements_dir:
|
|
error_out('requirements repo must be cloned before '
|
|
'updating from global requirements.')
|
|
_git_update_requirements(venv, repo_dir, requirements_dir)
|
|
|
|
juju_log('Installing git repo from dir: {}'.format(repo_dir))
|
|
if http_proxy:
|
|
pip_install(repo_dir, proxy=http_proxy, venv=venv)
|
|
else:
|
|
pip_install(repo_dir, venv=venv)
|
|
|
|
return repo_dir
|
|
|
|
|
|
def _git_update_requirements(venv, package_dir, reqs_dir):
|
|
"""
|
|
Update from global requirements.
|
|
|
|
Update an OpenStack git directory's requirements.txt and
|
|
test-requirements.txt from global-requirements.txt.
|
|
"""
|
|
orig_dir = os.getcwd()
|
|
os.chdir(reqs_dir)
|
|
python = os.path.join(venv, 'bin/python')
|
|
cmd = [python, 'update.py', package_dir]
|
|
try:
|
|
subprocess.check_call(cmd)
|
|
except subprocess.CalledProcessError:
|
|
package = os.path.basename(package_dir)
|
|
error_out("Error updating {} from "
|
|
"global-requirements.txt".format(package))
|
|
os.chdir(orig_dir)
|
|
|
|
|
|
def git_pip_venv_dir(projects_yaml):
|
|
"""
|
|
Return the pip virtualenv path.
|
|
"""
|
|
parent_dir = '/mnt/openstack-git'
|
|
|
|
projects = _git_yaml_load(projects_yaml)
|
|
|
|
if 'directory' in projects.keys():
|
|
parent_dir = projects['directory']
|
|
|
|
return os.path.join(parent_dir, 'venv')
|
|
|
|
|
|
def git_src_dir(projects_yaml, project):
|
|
"""
|
|
Return the directory where the specified project's source is located.
|
|
"""
|
|
parent_dir = '/mnt/openstack-git'
|
|
|
|
projects = _git_yaml_load(projects_yaml)
|
|
|
|
if 'directory' in projects.keys():
|
|
parent_dir = projects['directory']
|
|
|
|
for p in projects['repositories']:
|
|
if p['name'] == project:
|
|
return os.path.join(parent_dir, os.path.basename(p['repository']))
|
|
|
|
return None
|
|
|
|
|
|
def git_yaml_value(projects_yaml, key):
|
|
"""
|
|
Return the value in projects_yaml for the specified key.
|
|
"""
|
|
projects = _git_yaml_load(projects_yaml)
|
|
|
|
if key in projects.keys():
|
|
return projects[key]
|
|
|
|
return None
|