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- Committer: Andres Rodriguez
- Date: 2013-06-20 16:48:47 UTC
- mto: (29.2.187 glance)
- mto: This revision was merged to the branch mainline in revision 37.
- Revision ID: andreserl@ubuntu.com-20130620164847-ywboj1uileex4msj
remove hooks/lib
added
removed
hooks/lib/openstack_common.py
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#!/usr/bin/python
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# Common python helper functions used for OpenStack charms.
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import apt_pkg as apt
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import subprocess
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import os
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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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ubuntu_openstack_release = {
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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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}
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openstack_codenames = {
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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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}
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# The ugly duckling
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swift_codenames = {
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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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'1.7.6': 'grizzly',
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'1.7.7': 'grizzly',
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'1.8.0': 'grizzly',
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}
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def juju_log(msg):
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subprocess.check_call(['juju-log', msg])
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def error_out(msg):
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juju_log("FATAL ERROR: %s" % msg)
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exit(1)
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def lsb_release():
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'''Return /etc/lsb-release in a dict'''
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lsb = open('/etc/lsb-release', 'r')
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d = {}
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for l in lsb:
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k, v = l.split('=')
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d[k.strip()] = v.strip()
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return d
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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 == 'distro':
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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 = 'Code not derive openstack release for '\
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'this Ubuntu release: %s' % 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 openstack_codenames.iteritems():
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if v in src:
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return v
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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 openstack_codenames.iteritems():
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if v == codename:
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return k
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e = 'Code 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(pkg):
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'''Derive OpenStack release codename from an installed package.'''
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apt.init()
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cache = apt.Cache()
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try:
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pkg = cache[pkg]
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except:
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e = 'Could not determine version of installed package: %s' % pkg
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error_out(e)
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vers = apt.UpstreamVersion(pkg.current_ver.ver_str)
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try:
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if 'swift' in pkg.name:
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vers = vers[:5]
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return swift_codenames[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):
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'''Derive OpenStack version number from an installed package.'''
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codename = get_os_codename_package(pkg)
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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 vers_map.iteritems():
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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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def configure_installation_source(rel):
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'''Configure apt installation source.'''
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def _import_key(keyid):
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cmd = "apt-key adv --keyserver keyserver.ubuntu.com " \
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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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if rel == 'distro':
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return
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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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else:
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error_out("Invalid openstack-release: %s" % 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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}
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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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_import_key(CLOUD_ARCHIVE_KEY_ID)
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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 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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charm_dir = os.getenv('CHARM_DIR')
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juju_rc_path = "%s/%s" % (charm_dir, script_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 env_vars.iteritems() if u != "script_path"]
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