Convert glance to use the new cfg module

The changes here are substantial and widespread, but in summary:

  - We use cfg to parse the CLI and config files, rather than optparse
    and PasteDeploy

  - A schema is defined for all configuration options close to the code
    which uses the option

  - 2 ConfigOpts sub-classes are added to config.py basically just
    defining how to find config files; this means we can now use e.g.
    glance.conf for base config values which glance-api.conf can
    override

  - load_paste_app() is changed to load the paste app from the last
    config file in the stack and pass the app the ConfigOpts instance

  - The generic app and filter factories in wsgi.py are modified to
    pass a ConfigOpts instance to the apps and filters

  - A ConfigOpts subclass is added for the unit tests which writes out
    config values to a temporary config file and uses cfg to parse that

I've tried to keep the switch as unobtrusive as possible leaving further
cleanups for later e.g.

  - Moving PasteDeploy config out of the config files - I think it would
    be good to aim for having users modify the PasteDeploy config files
    only in fairly rare circumstances. To achieve this, we might define
    a number of common pipelines in the PasteDeploy config and allow
    the user to choose between those pipelines in the glance config.

  - We should add help strings to all the opts, even just for the sake
    of documenting them

  - We should move a bunch of the options into groups - e.g. all the
    rabbit options

  - We no longer rely on config files for default values, so the default
    config files could contain nothing but comments - i.e. explaining
    each option and showing what the default for it is - making it
    obvious where a user has explicitly set a value

There are a couple of behavioural changes which I don't think are
signifcant but are worth mentioning:

  - We used to support passing a config file as a positional argument
    but don't anymore; AFAICT, it was only used by glance-manage when
    launching servers and I've changed that to pass --config-file

  - log_opt_values() doesn't log unknown opts, so won't log any values
    for opts which get registered at runtime later

Change-Id: Iafa998a2a8d860f1ad57e2cd2afee69686ed58ba

bin/glance-api

@@ -23,7 +23,6 @@ Glance API Server
 """
 
 import gettext
-import optparse
 import os
 import sys
 
@@ -37,33 +36,19 @@ if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
 
 gettext.install('glance', unicode=1)
 
-from glance import version
 from glance.common import config
 from glance.common import wsgi
 
 
-def create_options(parser):
-    """
-    Sets up the CLI and config-file options that may be
-    parsed and program commands.
-
-    :param parser: The option parser
-    """
-    config.add_common_options(parser)
-    config.add_log_options(parser)
-
-
 if __name__ == '__main__':
-    oparser = optparse.OptionParser(version='%%prog %s'
-                                    % version.version_string())
-    create_options(oparser)
-    (options, args) = config.parse_options(oparser)
-
     try:
-        conf, app = config.load_paste_app('glance-api', options, args)
+        conf = config.GlanceConfigOpts()
+        conf()
+
+        app = config.load_paste_app(conf)
 
         server = wsgi.Server()
-        server.start(app, int(conf['bind_port']), conf['bind_host'], conf)
+        server.start(app, conf, default_port=9292)
         server.wait()
     except RuntimeError, e:
         sys.exit("ERROR: %s" % e)

bin/glance-cache-cleaner

@@ -33,7 +33,6 @@ period, we automatically sweep it up.
 """
 
 import gettext
-import optparse
 import os
 import sys
 
@@ -47,31 +46,15 @@ if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
 
 gettext.install('glance', unicode=1)
 
-from glance import version
 from glance.common import config
-from glance.common import wsgi
-
-
-def create_options(parser):
-    """
-    Sets up the CLI and config-file options that may be
-    parsed and program commands.
-
-    :param parser: The option parser
-    """
-    config.add_common_options(parser)
-    config.add_log_options(parser)
 
 
 if __name__ == '__main__':
-    oparser = optparse.OptionParser(version='%%prog %s'
-                                    % version.version_string())
-    create_options(oparser)
-    (options, args) = config.parse_options(oparser)
-
     try:
-        conf, app = config.load_paste_app('glance-cleaner', options, args,
+        conf = config.GlanceCacheConfigOpts()
-                                          'glance-cache')
+        conf()
+
+        app = config.load_paste_app(conf, 'glance-cleaner')
         app.run()
     except RuntimeError, e:
         sys.exit("ERROR: %s" % e)

bin/glance-cache-prefetcher

@@ -24,7 +24,6 @@ images to be pretched.
 """
 
 import gettext
-import optparse
 import os
 import sys
 
@@ -38,30 +37,15 @@ if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
 
 gettext.install('glance', unicode=1)
 
-from glance import version
 from glance.common import config
 
 
-def create_options(parser):
-    """
-    Sets up the CLI and config-file options that may be
-    parsed and program commands.
-
-    :param parser: The option parser
-    """
-    config.add_common_options(parser)
-    config.add_log_options(parser)
-
-
 if __name__ == '__main__':
-    oparser = optparse.OptionParser(version='%%prog %s'
-                                    % version.version_string())
-    create_options(oparser)
-    (options, args) = config.parse_options(oparser)
-
     try:
-        conf, app = config.load_paste_app('glance-prefetcher', options, args,
+        conf = config.GlanceCacheConfigOpts()
-                                          'glance-cache')
+        conf()
+
+        app = config.load_paste_app(conf, 'glance-prefetcher')
         app.run()
     except RuntimeError, e:
         sys.exit("ERROR: %s" % e)

bin/glance-cache-pruner

@@ -25,7 +25,6 @@ This is meant to be run as a periodic task, perhaps every half-hour.
 """
 
 import gettext
-import optparse
 import os
 import sys
 
@@ -39,31 +38,15 @@ if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
 
 gettext.install('glance', unicode=1)
 
-from glance import version
 from glance.common import config
-from glance.common import wsgi
-
-
-def create_options(parser):
-    """
-    Sets up the CLI and config-file options that may be
-    parsed and program commands.
-
-    :param parser: The option parser
-    """
-    config.add_common_options(parser)
-    config.add_log_options(parser)
 
 
 if __name__ == '__main__':
-    oparser = optparse.OptionParser(version='%%prog %s'
-                                    % version.version_string())
-    create_options(oparser)
-    (options, args) = config.parse_options(oparser)
-
     try:
-        conf, app = config.load_paste_app('glance-pruner', options, args,
+        conf = config.GlanceCacheConfigOpts()
-                                          'glance-cache')
+        conf()
+
+        app = config.load_paste_app(conf, 'glance-pruner')
         app.run()
     except RuntimeError, e:
         sys.exit("ERROR: %s" % e)

bin/glance-cache-queue-image

@@ -21,7 +21,6 @@ CLI Utility to queue one or more images for prefetching into the image cache
 """
 
 import gettext
-import optparse
 import os
 import sys
 
@@ -35,7 +34,6 @@ if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
 
 gettext.install('glance', unicode=1)
 
-from glance import version
 from glance.common import config
 
 USAGE = """
@@ -44,13 +42,11 @@ USAGE = """
 
 
 if __name__ == '__main__':
-    oparser = optparse.OptionParser(version='%%prog %s'
-                                    % version.version_string(),
-                                    usage=USAGE)
-    (options, args) = config.parse_options(oparser)
-
     try:
-        conf, app = config.load_paste_app('glance-queue-image', options, args)
+        conf = config.GlanceCacheConfigOpts(usage=USAGE)
+        args = conf()
+
+        app = config.load_paste_app(conf, 'glance-queue-image')
         app.run(args)
     except RuntimeError, e:
         sys.exit("ERROR: %s" % e)

bin/glance-control

@@ -43,6 +43,7 @@ if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
 gettext.install('glance', unicode=1)
 
 from glance import version
+from glance.common import cfg
 from glance.common import config
 
 ALL_COMMANDS = ['start', 'stop', 'shutdown', 'restart',
@@ -65,11 +66,11 @@ And command is one of:
 And CONFPATH is the optional configuration file to use."""
 
 
-def pid_files(server, options):
+def pid_files(server, conf):
     pid_files = []
-    if options['pid_file']:
+    if conf.pid_file:
-        if os.path.exists(os.path.abspath(options['pid_file'])):
+        if os.path.exists(os.path.abspath(conf.pid_file)):
-            pid_files = [os.path.abspath(options['pid_file'])]
+            pid_files = [os.path.abspath(conf.pid_file)]
     else:
         if os.path.exists('/var/run/glance/%s.pid' % server):
             pid_files = ['/var/run/glance/%s.pid' % server]
@@ -78,10 +79,10 @@ def pid_files(server, options):
         yield pid_file, pid
 
 
-def do_start(server, options, args):
+def do_start(server, conf, args):
     server_type = '-'.join(server.split('-')[:-1])
 
-    for pid_file, pid in pid_files(server, options):
+    for pid_file, pid in pid_files(server, conf):
         if os.path.exists('/proc/%s' % pid):
             print "%s appears to already be running: %s" % (server, pid_file)
             return
@@ -112,7 +113,6 @@ def do_start(server, options, args):
         fp.close()
 
     def launch(ini_file, pid_file):
-        args = [server, ini_file]
         print 'Starting %s with %s' % (server, ini_file)
 
         pid = os.fork()
@@ -125,7 +125,7 @@ def do_start(server, options, args):
                     except OSError:
                         pass
             try:
-                os.execlp('%s' % server, server, ini_file)
+                os.execlp('%s' % server, server, '--config-file', ini_file)
             except OSError, e:
                 sys.exit('unable to launch %s. Got error: %s'
                          % (server, "%s" % e))
@@ -133,31 +133,31 @@ def do_start(server, options, args):
         else:
             write_pid_file(pid_file, pid)
 
-    if not options['pid_file']:
+    if not conf.pid_file:
         pid_file = '/var/run/glance/%s.pid' % server
     else:
-        pid_file = os.path.abspath(options['pid_file'])
+        pid_file = os.path.abspath(conf.pid_file)
 
     try:
-        conf_file = config.find_config_file(server, options, args)
+        if args and os.path.exists(args[0]):
+            conf_file = os.path.abspath(os.path.expanduser(args[0]))
+        else:
+            # Assume paste config is in the last config file
+            conf_file = conf.config_file[-1]
     except RuntimeError, err:
         sys.exit("Could not find any configuration file to use: %s" % err)
 
-    launch_args = [(conf_file, pid_file)]
+    launch(conf_file, pid_file)
-
-    # start all servers
-    for conf_file, pid_file in launch_args:
-        launch(conf_file, pid_file)
 
 
-def do_stop(server, options, args, graceful=False):
+def do_stop(server, conf, args, graceful=False):
     if graceful and server in GRACEFUL_SHUTDOWN_SERVERS:
         sig = signal.SIGHUP
     else:
         sig = signal.SIGTERM
 
     did_anything = False
-    pfiles = pid_files(server, options)
+    pfiles = pid_files(server, conf)
     for pid_file, pid in pfiles:
         did_anything = True
         try:
@@ -182,13 +182,12 @@ def do_stop(server, options, args, graceful=False):
 
 
 if __name__ == '__main__':
-    oparser = optparse.OptionParser(usage=USAGE, version='%%prog %s'
+    conf = config.GlanceConfigOpts(usage=USAGE)
-                                    % version.version_string())
+    conf.register_cli_opt(cfg.StrOpt('pid-file',
-    oparser.add_option('--pid-file', default=None, metavar="PATH",
+                                     metavar='PATH',
-                       help="File to use as pid file. Default: "
+                                     help='File to use as pid file. Default: '
-                       "/var/run/glance/$server.pid")
+                                          '/var/run/glance/$server.pid'))
-    config.add_common_options(oparser)
+    args = conf()
-    (options, args) = config.parse_options(oparser)
 
     if len(args) < 2:
         oparser.print_usage()
@@ -217,23 +216,23 @@ if __name__ == '__main__':
 
     if command == 'start':
         for server in servers:
-            do_start(server, options, args)
+            do_start(server, conf, args)
 
     if command == 'stop':
         for server in servers:
-            do_stop(server, options, args)
+            do_stop(server, conf, args)
 
     if command == 'shutdown':
         for server in servers:
-            do_stop(server, options, args, graceful=True)
+            do_stop(server, conf, args, graceful=True)
 
     if command == 'restart':
         for server in servers:
-            do_stop(server, options, args)
+            do_stop(server, conf, args)
         for server in servers:
-            do_start(server, options, args)
+            do_start(server, conf, args)
 
     if command == 'reload' or command == 'force-reload':
         for server in servers:
-            do_stop(server, options, args, graceful=True)
+            do_stop(server, conf, args, graceful=True)
-            do_start(server, options, args)
+            do_start(server, conf, args)

bin/glance-manage

@@ -27,7 +27,6 @@ Glance Management Utility
 # glance-manage (or the other way around)
 
 import gettext
-import optparse
 import os
 import sys
 
@@ -41,41 +40,29 @@ if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
 
 gettext.install('glance', unicode=1)
 
-from glance import version as glance_version
+from glance.common import cfg
 from glance.common import config
 from glance.common import exception
 import glance.registry.db
 import glance.registry.db.migration
 
 
-def create_options(parser):
+def do_db_version(conf, args):
-    """
-    Sets up the CLI and config-file options that may be
-    parsed and program commands.
-
-    :param parser: The option parser
-    """
-    config.add_common_options(parser)
-    config.add_log_options(parser)
-    glance.registry.db.add_options(parser)
-
-
-def do_db_version(options, args):
     """Print database's current migration level"""
-    print glance.registry.db.migration.db_version(options)
+    print glance.registry.db.migration.db_version(conf)
 
 
-def do_upgrade(options, args):
+def do_upgrade(conf, args):
     """Upgrade the database's migration level"""
     try:
         db_version = args[1]
     except IndexError:
         db_version = None
 
-    glance.registry.db.migration.upgrade(options, version=db_version)
+    glance.registry.db.migration.upgrade(conf, version=db_version)
 
 
-def do_downgrade(options, args):
+def do_downgrade(conf, args):
     """Downgrade the database's migration level"""
     try:
         db_version = args[1]
@@ -83,24 +70,24 @@ def do_downgrade(options, args):
         raise exception.MissingArgumentError(
             "downgrade requires a version argument")
 
-    glance.registry.db.migration.downgrade(options, version=db_version)
+    glance.registry.db.migration.downgrade(conf, version=db_version)
 
 
-def do_version_control(options, args):
+def do_version_control(conf, args):
     """Place a database under migration control"""
-    glance.registry.db.migration.version_control(options)
+    glance.registry.db.migration.version_control(conf)
 
 
-def do_db_sync(options, args):
+def do_db_sync(conf, args):
     """Place a database under migration control and upgrade"""
     try:
         db_version = args[1]
     except IndexError:
         db_version = None
-    glance.registry.db.migration.db_sync(options, version=db_version)
+    glance.registry.db.migration.db_sync(conf, version=db_version)
 
 
-def dispatch_cmd(options, args):
+def dispatch_cmd(conf, args):
     """Search for do_* cmd in this module and then run it"""
     cmd = args[0]
     try:
@@ -109,35 +96,32 @@ def dispatch_cmd(options, args):
         sys.exit("ERROR: unrecognized command '%s'" % cmd)
 
     try:
-        cmd_func(options, args)
+        cmd_func(conf, args)
     except exception.GlanceException, e:
         sys.exit("ERROR: %s" % e)
 
 
 def main():
-    version = '%%prog %s' % glance_version.version_string()
-    usage = "%prog [options] <cmd>"
-    oparser = optparse.OptionParser(usage, version=version)
-    create_options(oparser)
-    (options, args) = config.parse_options(oparser)
-
     try:
         # We load the glance-registry config section because
         # sql_connection is only part of the glance registry.
-        conf_file = config.find_config_file('glance-registry', options, args)
+        default_config_files = \
-        conf = config.load_paste_config(conf_file, 'glance-registry')
+            cfg.find_config_files(project='glance', prog='glance-registry')
-        config.setup_logging(options, conf)
+
+        conf = \
+            config.GlanceConfigOpts(default_config_files=default_config_files,
+                                    usage="%prog [options] <cmd>")
+        glance.registry.db.add_options(conf)
+        args = conf()
+        config.setup_logging(conf)
     except RuntimeError, e:
         sys.exit("ERROR: %s" % e)
 
     if not args:
-        oparser.print_usage()
+        conf.print_usage()
         sys.exit(1)
 
-    if conf.get('sql_connection') and not options['sql_connection']:
+    dispatch_cmd(conf, args)
-        options['sql_connection'] = conf.get('sql_connection')
-
-    dispatch_cmd(options, args)
 
 
 if __name__ == '__main__':

bin/glance-registry

@@ -23,7 +23,6 @@ Reference implementation server for Glance Registry
 """
 
 import gettext
-import optparse
 import os
 import sys
 
@@ -37,33 +36,19 @@ if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
 
 gettext.install('glance', unicode=1)
 
-from glance import version
 from glance.common import config
 from glance.common import wsgi
 
 
-def create_options(parser):
-    """
-    Sets up the CLI and config-file options that may be
-    parsed and program commands.
-
-    :param parser: The option parser
-    """
-    config.add_common_options(parser)
-    config.add_log_options(parser)
-
-
 if __name__ == '__main__':
-    oparser = optparse.OptionParser(version='%%prog %s'
-                                    % version.version_string())
-    create_options(oparser)
-    (options, args) = config.parse_options(oparser)
-
     try:
-        conf, app = config.load_paste_app('glance-registry', options, args)
+        conf = config.GlanceConfigOpts()
+        conf()
+
+        app = config.load_paste_app(conf)
 
         server = wsgi.Server()
-        server.start(app, int(conf['bind_port']), conf['bind_host'], conf)
+        server.start(app, conf, default_port=9191)
         server.wait()
     except RuntimeError, e:
         sys.exit("ERROR: %s" % e)

bin/glance-scrubber

@@ -21,7 +21,6 @@ Glance Scrub Service
 """
 
 import gettext
-import optparse
 import os
 import sys
 
@@ -35,44 +34,30 @@ if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
 
 gettext.install('glance', unicode=1)
 
-from glance import version
+from glance.common import cfg
 from glance.common import config
 from glance.store import scrubber
 
 
-def create_options(parser):
-    """
-    Sets up the CLI and config-file options that may be
-    parsed and program commands.
-
-    :param parser: The option parser
-    """
-    config.add_common_options(parser)
-    config.add_log_options(parser)
-    parser.add_option("-D", "--daemon", default=False, dest="daemon",
-                      action="store_true",
-                      help="Run as a long-running process. When not "
-                           "specified (the default) run the scrub "
-                           "operation once and then exits. When specified "
-                           "do not exit and run scrub on wakeup_time "
-                           "interval as specified in the config file.")
-
-
 if __name__ == '__main__':
-    oparser = optparse.OptionParser(version='%%prog %s'
-                                    % version.version_string())
-    create_options(oparser)
-    (options, args) = config.parse_options(oparser)
-
     try:
-        conf, app = config.load_paste_app('glance-scrubber', options, args)
+        conf = config.GlanceConfigOpts()
-        daemon = options.get('daemon') or \
+        conf.register_cli_opt(
-                 config.get_option(conf, 'daemon', type='bool',
+            cfg.BoolOpt('daemon',
-                                   default=False)
+                        short='D',
+                        default=False,
+                        help='Run as a long-running process. When not '
+                             'specified (the default) run the scrub operation '
+                             'once and then exits. When specified do not exit '
+                             'and run scrub on wakeup_time interval as '
+                             'specified in the config.'))
+        conf.register_opt(cfg.IntOpt('wakeup_time', default=300))
+        conf()
 
-        if daemon:
+        app = config.load_paste_app(conf, 'glance-scrubber')
-            wakeup_time = int(conf.get('wakeup_time', 300))
+
-            server = scrubber.Daemon(wakeup_time)
+        if conf.daemon:
+            server = scrubber.Daemon(conf.wakeup_time)
             server.start(app)
             server.wait()
         else:

glance/api/middleware/cache.py

@@ -43,7 +43,7 @@ get_images_re = re.compile(r'^(/v\d+)*/images/(.+)$')
 
 class CacheFilter(wsgi.Middleware):
 
-    def __init__(self, app, conf):
+    def __init__(self, app, conf, **local_conf):
         self.conf = conf
         self.cache = image_cache.ImageCache(conf)
         self.serializer = images.ImageSerializer()

glance/api/middleware/cache_manage.py

@@ -28,8 +28,7 @@ logger = logging.getLogger(__name__)
 
 
 class CacheManageFilter(wsgi.Middleware):
-    def __init__(self, app, conf):
+    def __init__(self, app, conf, **local_conf):
-
         map = app.map
         resource = cached_images.create_resource(conf)
 

glance/api/middleware/version_negotiation.py

@@ -35,7 +35,7 @@ logger = logging.getLogger('glance.api.middleware.version_negotiation')
 
 class VersionNegotiationFilter(wsgi.Middleware):
 
-    def __init__(self, app, conf):
+    def __init__(self, app, conf, **local_conf):
         self.versions_app = versions.Controller(conf)
         self.version_uri_regex = re.compile(r"^v(\d+)\.?(\d+)?")
         self.conf = conf

glance/api/v1/images.py

@@ -34,6 +34,7 @@ from webob.exc import (HTTPNotFound,
 import glance.api.v1
 from glance.api.v1 import controller
 from glance import image_cache
+from glance.common import cfg
 from glance.common import exception
 from glance.common import notifier
 from glance.common import wsgi
@@ -76,8 +77,11 @@ class Controller(controller.BaseController):
         DELETE /images/<ID> -- Delete the image with id <ID>
     """
 
+    default_store_opt = cfg.StrOpt('default_store', default='file')
+
     def __init__(self, conf):
         self.conf = conf
+        self.conf.register_opt(self.default_store_opt)
         glance.store.create_stores(conf)
         self.notifier = notifier.Notifier(conf)
         registry.configure_registry_client(conf)
@@ -290,7 +294,7 @@ class Controller(controller.BaseController):
             raise HTTPBadRequest(explanation=msg)
 
         store_name = req.headers.get('x-image-meta-store',
-                                     self.conf['default_store'])
+                                     self.conf.default_store)
 
         store = self.get_store_or_400(req, store_name)
 

glance/api/v1/router.py

@@ -30,7 +30,7 @@ class API(wsgi.Router):
 
     """WSGI router for Glance v1 API requests."""
 
-    def __init__(self, conf):
+    def __init__(self, conf, **local_conf):
         self.conf = conf
         mapper = routes.Mapper()
 

glance/api/versions.py

@@ -24,6 +24,8 @@ import json
 
 import webob.dec
 
+from glance.common import wsgi
+
 
 class Controller(object):
 
@@ -63,5 +65,4 @@ class Controller(object):
         return response
 
     def get_href(self):
-        return "http://%s:%s/v1/" % (self.conf['bind_host'],
+        return "http://%s:%s/v1/" % wsgi.get_bind_addr(self.conf, 9292)
-                                     self.conf['bind_port'])

glance/common/config.py

@@ -20,159 +20,68 @@
 Routines for configuring Glance
 """
 
-import ConfigParser
 import logging
 import logging.config
 import logging.handlers
-import optparse
 import os
-import re
 import sys
 
-from paste import deploy
+from glance import version
-
+from glance.common import cfg
-import glance.common.exception as exception
+from glance.common import utils
-
+from glance.common import wsgi
-DEFAULT_LOG_FORMAT = "%(asctime)s %(levelname)8s [%(name)s] %(message)s"
-DEFAULT_LOG_DATE_FORMAT = "%Y-%m-%d %H:%M:%S"
 
 
-def parse_options(parser, cli_args=None):
+class GlanceConfigOpts(cfg.CommonConfigOpts):
-    """
-    Returns the parsed CLI options, command to run and its arguments, merged
-    with any same-named options found in a configuration file.
 
-    The function returns a tuple of (options, args), where options is a
+    def __init__(self, default_config_files=None, **kwargs):
-    mapping of option key/str(value) pairs, and args is the set of arguments
+        super(GlanceConfigOpts, self).__init__(
-    (not options) supplied on the command-line.
+            project='glance',
-
+            version='%%prog %s' % version.version_string(),
-    The reason that the option values are returned as strings only is that
+            default_config_files=default_config_files,
-    ConfigParser and paste.deploy only accept string values...
+            **kwargs)
-
-    :param parser: The option parser
-    :param cli_args: (Optional) Set of arguments to process. If not present,
-                     sys.argv[1:] is used.
-    :retval tuple of (options, args)
-    """
-
-    (options, args) = parser.parse_args(cli_args)
-
-    return (vars(options), args)
 
 
-def add_common_options(parser):
+class GlanceCacheConfigOpts(GlanceConfigOpts):
-    """
-    Given a supplied optparse.OptionParser, adds an OptionGroup that
-    represents all common configuration options.
 
-    :param parser: optparse.OptionParser
+    def __init__(self, **kwargs):
-    """
+        config_files = cfg.find_config_files(project='glance',
-    help_text = "The following configuration options are common to "\
+                                             prog='glance-cache')
-                "all glance programs."
+        super(GlanceCacheConfigOpts, self).__init__(config_files, **kwargs)
-
-    group = optparse.OptionGroup(parser, "Common Options", help_text)
-    group.add_option('-v', '--verbose', default=False, dest="verbose",
-                     action="store_true",
-                     help="Print more verbose output")
-    group.add_option('-d', '--debug', default=False, dest="debug",
-                     action="store_true",
-                     help="Print debugging output")
-    group.add_option('--config-file', default=None, metavar="PATH",
-                     help="Path to the config file to use. When not specified "
-                          "(the default), we generally look at the first "
-                          "argument specified to be a config file, and if "
-                          "that is also missing, we search standard "
-                          "directories for a config file.")
-    parser.add_option_group(group)
 
 
-def add_log_options(parser):
+def setup_logging(conf):
-    """
-    Given a supplied optparse.OptionParser, adds an OptionGroup that
-    represents all the configuration options around logging.
-
-    :param parser: optparse.OptionParser
-    """
-    help_text = "The following configuration options are specific to logging "\
-                "functionality for this program."
-
-    group = optparse.OptionGroup(parser, "Logging Options", help_text)
-    group.add_option('--log-config', default=None, metavar="PATH",
-                     help="If this option is specified, the logging "
-                          "configuration file specified is used and overrides "
-                          "any other logging options specified. Please see "
-                          "the Python logging module documentation for "
-                          "details on logging configuration files.")
-    group.add_option('--log-date-format', metavar="FORMAT",
-                      default=DEFAULT_LOG_DATE_FORMAT,
-                      help="Format string for %(asctime)s in log records. "
-                           "Default: %default")
-    group.add_option('--log-file', default=None, metavar="PATH",
-                      help="(Optional) Name of log file to output to. "
-                           "If not set, logging will go to stdout.")
-    group.add_option("--log-dir", default=None,
-                      help="(Optional) The directory to keep log files in "
-                           "(will be prepended to --logfile)")
-    group.add_option('--use-syslog', default=False, dest="use_syslog",
-                     action="store_true",
-                     help="Use syslog for logging.")
-    parser.add_option_group(group)
-
-
-def setup_logging(options, conf):
     """
     Sets up the logging options for a log with supplied name
 
-    :param options: Mapping of typed option key/values
+    :param conf: a cfg.ConfOpts object
-    :param conf: Mapping of untyped key/values from config file
     """
 
-    if options.get('log_config', None):
+    if conf.log_config:
         # Use a logging configuration file for all settings...
-        if os.path.exists(options['log_config']):
+        if os.path.exists(conf.log_config):
-            logging.config.fileConfig(options['log_config'])
+            logging.config.fileConfig(conf.log_config)
             return
         else:
             raise RuntimeError("Unable to locate specified logging "
-                               "config file: %s" % options['log_config'])
+                               "config file: %s" % conf.log_config)
 
-    # If either the CLI option or the conf value
-    # is True, we set to True
-    debug = options.get('debug') or \
-            get_option(conf, 'debug', type='bool', default=False)
-    verbose = options.get('verbose') or \
-            get_option(conf, 'verbose', type='bool', default=False)
     root_logger = logging.root
-    if debug:
+    if conf.debug:
         root_logger.setLevel(logging.DEBUG)
-    elif verbose:
+    elif conf.verbose:
         root_logger.setLevel(logging.INFO)
     else:
         root_logger.setLevel(logging.WARNING)
 
-    # Set log configuration from options...
+    formatter = logging.Formatter(conf.log_format, conf.log_date_format)
-    # Note that we use a hard-coded log format in the options
-    # because of Paste.Deploy bug #379
-    # http://trac.pythonpaste.org/pythonpaste/ticket/379
-    log_format = options.get('log_format', DEFAULT_LOG_FORMAT)
-    log_date_format = options.get('log_date_format', DEFAULT_LOG_DATE_FORMAT)
-    formatter = logging.Formatter(log_format, log_date_format)
 
-    logfile = options.get('log_file')
+    if conf.use_syslog:
-    if not logfile:
-        logfile = conf.get('log_file')
-
-    use_syslog = options.get('use_syslog') or \
-                get_option(conf, 'use_syslog', type='bool', default=False)
-
-    if use_syslog:
         handler = logging.handlers.SysLogHandler(address='/dev/log')
-    elif logfile:
+    elif conf.log_file:
-        logdir = options.get('log_dir')
+        logfile = conf.log_file
-        if not logdir:
+        if conf.log_dir:
-            logdir = conf.get('log_dir')
+            logfile = os.path.join(conf.log_dir, logfile)
-        if logdir:
-            logfile = os.path.join(logdir, logfile)
         handler = logging.handlers.WatchedFileHandler(logfile)
     else:
         handler = logging.StreamHandler(sys.stdout)
@@ -181,143 +90,39 @@ def setup_logging(options, conf):
     root_logger.addHandler(handler)
 
 
-def find_config_file(conf_name, options, args):
+def load_paste_app(conf, app_name=None):
-    """
-    Return the first config file found for an application.
-
-    We search for the paste config file in the following order:
-    * If --config-file option is used, use that
-    * If args[0] is a file, use that
-    * Search for $conf_name.conf in standard directories:
-        * ~.glance/
-        * ~
-        * /etc/glance
-        * /etc
-
-    :retval Full path to config file.
-
-    :raises RuntimeError if the config file cannot be found.
-    """
-
-    fix_path = lambda p: os.path.abspath(os.path.expanduser(p))
-    if options.get('config_file'):
-        if os.path.exists(options['config_file']):
-            return fix_path(options['config_file'])
-    elif args:
-        if os.path.exists(args[0]):
-            return fix_path(args[0])
-
-    # Handle standard directory search for $conf_name.conf
-    config_file_dirs = [fix_path(os.path.join('~', '.glance')),
-                        fix_path('~'),
-                        '/etc/glance/',
-                        '/etc']
-
-    for cfg_dir in config_file_dirs:
-        cfg_file = os.path.join(cfg_dir, '%s.conf' % conf_name)
-        if os.path.exists(cfg_file):
-            return cfg_file
-
-    raise RuntimeError("Unable to locate %s configuration file." % conf_name)
-
-
-def load_paste_config(conf_file, app_name):
-    """
-    Load the configuration mapping from a paste config file.
-
-    :param conf_file: The path to the paste config file.
-    :param app_name: Name of the application to load config for, or None.
-                     None signifies to only load the [DEFAULT] section of
-                     the config file.
-    :retval The configuration mapping.
-
-    :raises RuntimeError when there was a problem loading the configuration
-            file.
-    """
-    try:
-        return deploy.appconfig("config:%s" % conf_file, name=app_name)
-    except Exception, e:
-        raise RuntimeError("Error trying to load config %s: %s"
-                           % (conf_file, e))
-
-
-def load_paste_app(app_name, options, args, conf_name=None):
     """
     Builds and returns a WSGI app from a paste config file.
 
-    We search for the paste config file in the following order:
+    We assume the last config file specified in the supplied ConfigOpts
-    * If --config-file option is used, use that
+    object is the paste config file.
-    * If args[0] is a file, use that
-    * Search for $conf_name.conf in standard directories:
-        * ~.glance/
-        * ~
-        * /etc/glance
-        * /etc
 
-    :param app_name: Name of the application to load
+    :param conf: a cfg.ConfigOpts object
-    :param options: Set of typed options returned from parse_options()
+    :param app_name: name of the application to load
-    :param args: Command line arguments from argv[1:]
-    :param conf_name: Name of config file to load, defaults to app_name
 
     :raises RuntimeError when config file cannot be located or application
             cannot be loaded from config file
     """
-    if conf_name is None:
+    if app_name is None:
-        conf_name = app_name
+        app_name = conf.prog
-    conf_file = find_config_file(conf_name, options, args)
 
-    conf = load_paste_config(conf_file, app_name)
+    # Assume paste config is in the last config file
+    conf_file = os.path.abspath(conf.config_file[-1])
 
     try:
-        # Setup logging early, supplying both the CLI options and the
+        # Setup logging early
-        # configuration mapping from the config file
+        setup_logging(conf)
-        setup_logging(options, conf)
 
-        # We only update the conf dict for the verbose and debug
+        logger = logging.getLogger(app_name)
-        # flags. Everything else must be set up in the conf file...
+
-        debug = options.get('debug') or \
+        app = wsgi.paste_deploy_app(conf_file, app_name, conf)
-                get_option(conf, 'debug', type='bool', default=False)
-        verbose = options.get('verbose') or \
-                get_option(conf, 'verbose', type='bool', default=False)
-        conf['debug'] = debug
-        conf['verbose'] = verbose
 
         # Log the options used when starting if we're in debug mode...
-        if debug:
+        if conf.debug:
-            logger = logging.getLogger(app_name)
+            conf.log_opt_values(logging.getLogger(app_name), logging.DEBUG)
-            logger.debug("*" * 80)
+
-            logger.debug("Configuration options gathered from config file:")
+        return app
-            logger.debug(conf_file)
-            logger.debug("================================================")
-            items = dict([(k, v) for k, v in conf.items()
-                          if k not in ('__file__', 'here')])
-            for key, value in sorted(items.items()):
-                logger.debug("%(key)-30s %(value)s" % locals())
-            logger.debug("*" * 80)
-        app = deploy.loadapp("config:%s" % conf_file, name=app_name)
     except (LookupError, ImportError), e:
         raise RuntimeError("Unable to load %(app_name)s from "
                            "configuration file %(conf_file)s."
                            "\nGot: %(e)r" % locals())
-    return conf, app
-
-
-def get_option(options, option, **kwargs):
-    if option in options:
-        value = options[option]
-        type_ = kwargs.get('type', 'str')
-        if type_ == 'bool':
-            if hasattr(value, 'lower'):
-                return value.lower() == 'true'
-            else:
-                return value
-        elif type_ == 'int':
-            return int(value)
-        elif type_ == 'float':
-            return float(value)
-        else:
-            return value
-    elif 'default' in kwargs:
-        return kwargs['default']
-    else:
-        raise KeyError("option '%s' not found" % option)

glance/common/context.py

@@ -14,7 +14,8 @@
 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #    License for the specific language governing permissions and limitations
 #    under the License.
-from glance.common import config
+
+from glance.common import cfg
 from glance.common import exception
 from glance.common import utils
 from glance.common import wsgi
@@ -53,26 +54,29 @@ class RequestContext(object):
 
 
 class ContextMiddleware(wsgi.Middleware):
-    def __init__(self, app, conf):
+
+    opts = [
+        cfg.BoolOpt('owner_is_tenant', default=True),
+        ]
+
+    def __init__(self, app, conf, **local_conf):
         self.conf = conf
+        self.conf.register_opts(self.opts)
+
+        # Determine the context class to use
+        self.ctxcls = RequestContext
+        if 'context_class' in local_conf:
+            self.ctxcls = utils.import_class(local_conf['context_class'])
+
         super(ContextMiddleware, self).__init__(app)
 
     def make_context(self, *args, **kwargs):
         """
         Create a context with the given arguments.
         """
+        kwargs.setdefault('owner_is_tenant', self.conf.owner_is_tenant)
 
-        # Determine the context class to use
+        return self.ctxcls(*args, **kwargs)
-        ctxcls = RequestContext
-        if 'context_class' in self.conf:
-            ctxcls = utils.import_class(self.conf['context_class'])
-
-        # Determine whether to use tenant or owner
-        owner_is_tenant = config.get_option(self.conf, 'owner_is_tenant',
-                                            type='bool', default=True)
-        kwargs.setdefault('owner_is_tenant', owner_is_tenant)
-
-        return ctxcls(*args, **kwargs)
 
     def process_request(self, req):
         """

glance/common/notifier.py

@@ -22,7 +22,7 @@ import uuid
 
 import kombu.connection
 
-from glance.common import config
+from glance.common import cfg
 from glance.common import exception
 
 
@@ -61,33 +61,29 @@ class LoggingStrategy(object):
 class RabbitStrategy(object):
     """A notifier that puts a message on a queue when called."""
 
+    opts = [
+        cfg.StrOpt('rabbit_host', default='localhost'),
+        cfg.IntOpt('rabbit_port', default=5672),
+        cfg.BoolOpt('rabbit_use_ssl', default=False),
+        cfg.StrOpt('rabbit_userid', default='guest'),
+        cfg.StrOpt('rabbit_password', default='guest'),
+        cfg.StrOpt('rabbit_virtual_host', default='/'),
+        cfg.StrOpt('rabbit_notification_topic', default='glance_notifications')
+        ]
+
     def __init__(self, conf):
         """Initialize the rabbit notification strategy."""
         self._conf = conf
-        host = self._get_option('rabbit_host', 'str', 'localhost')
+        self._conf.register_opts(self.opts)
-        port = self._get_option('rabbit_port', 'int', 5672)
-        use_ssl = self._get_option('rabbit_use_ssl', 'bool', False)
-        userid = self._get_option('rabbit_userid', 'str', 'guest')
-        password = self._get_option('rabbit_password', 'str', 'guest')
-        virtual_host = self._get_option('rabbit_virtual_host', 'str', '/')
 
         self.connection = kombu.connection.BrokerConnection(
-            hostname=host,
+            hostname=self._conf.rabbit_host,
-            userid=userid,
+            userid=self._conf.rabbit_userid,
-            password=password,
+            password=self._conf.rabbit_password,
-            virtual_host=virtual_host,
+            virtual_host=self._conf.rabbit_virtual_host,
-            ssl=use_ssl)
+            ssl=self._conf.rabbit_use_ssl)
 
-        self.topic = self._get_option('rabbit_notification_topic',
+        self.topic = self._conf.rabbit_notification_topic
-                                      'str',
-                                      'glance_notifications')
-
-    def _get_option(self, name, datatype, default):
-        """Retrieve a configuration option."""
-        return config.get_option(self._conf,
-                                 name,
-                                 type=datatype,
-                                 default=default)
 
     def _send_message(self, message, priority):
         topic = "%s.%s" % (self.topic, priority)
@@ -115,9 +111,13 @@ class Notifier(object):
         "default": NoopStrategy,
     }
 
+    opts = [
+        cfg.StrOpt('notifier_strategy', default='default')
+        ]
+
     def __init__(self, conf, strategy=None):
-        strategy = config.get_option(conf, "notifier_strategy",
+        conf.register_opts(self.opts)
-                                     type="str", default="default")
+        strategy = conf.notifier_strategy
         try:
             self.strategy = self.STRATEGIES[strategy](conf)
         except KeyError:

glance/common/wsgi.py

@@ -31,15 +31,29 @@ import time
 import eventlet
 from eventlet.green import socket, ssl
 import eventlet.wsgi
+from paste import deploy
 import routes
 import routes.middleware
 import webob.dec
 import webob.exc
 
+from glance.common import cfg
 from glance.common import exception
 from glance.common import utils
 
 
+bind_opts = [
+    cfg.StrOpt('bind_host', default='0.0.0.0'),
+    cfg.IntOpt('bind_port'),
+]
+
+socket_opts = [
+    cfg.IntOpt('backlog', default=4096),
+    cfg.StrOpt('cert_file'),
+    cfg.StrOpt('key_file'),
+    ]
+
+
 class WritableLogger(object):
     """A thin wrapper that responds to `write` and logs."""
 
@@ -51,30 +65,37 @@ class WritableLogger(object):
         self.logger.log(self.level, msg.strip("\n"))
 
 
-def get_socket(host, port, conf):
+def get_bind_addr(conf, default_port=None):
+    """Return the host and port to bind to."""
+    conf.register_opts(bind_opts)
+    return (conf.bind_host, conf.bind_port or default_port)
+
+
+def get_socket(conf, default_port):
     """
     Bind socket to bind ip:port in conf
 
     note: Mostly comes from Swift with a few small changes...
 
-    :param host: Host to bind to
+    :param conf: a cfg.ConfigOpts object
-    :param port: Port to bind to
+    :param default_port: port to bind to if none is specified in conf
-    :param conf: Configuration dict to read settings from
 
     :returns : a socket object as returned from socket.listen or
                ssl.wrap_socket if conf specifies cert_file
     """
-    bind_addr = (host, port)
+    bind_addr = get_bind_addr(conf, default_port)
+
     # TODO(jaypipes): eventlet's greened socket module does not actually
     # support IPv6 in getaddrinfo(). We need to get around this in the
     # future or monitor upstream for a fix
     address_family = [addr[0] for addr in socket.getaddrinfo(bind_addr[0],
             bind_addr[1], socket.AF_UNSPEC, socket.SOCK_STREAM)
             if addr[0] in (socket.AF_INET, socket.AF_INET6)][0]
-    backlog = int(conf.get('backlog', 4096))
 
-    cert_file = conf.get('cert_file')
+    conf.register_opts(socket_opts)
-    key_file = conf.get('key_file')
+
+    cert_file = conf.cert_file
+    key_file = conf.key_file
     use_ssl = cert_file or key_file
     if use_ssl and (not cert_file or not key_file):
         raise RuntimeError(_("When running server in SSL mode, you must "
@@ -85,7 +106,7 @@ def get_socket(host, port, conf):
     retry_until = time.time() + 30
     while not sock and time.time() < retry_until:
         try:
-            sock = eventlet.listen(bind_addr, backlog=backlog,
+            sock = eventlet.listen(bind_addr, backlog=conf.backlog,
                                    family=address_family)
             if use_ssl:
                 sock = ssl.wrap_socket(sock, certfile=cert_file,
@@ -114,17 +135,15 @@ class Server(object):
     def __init__(self, threads=1000):
         self.pool = eventlet.GreenPool(threads)
 
-    def start(self, application, port, host='0.0.0.0', conf=None):
+    def start(self, application, conf, default_port):
         """
         Run a WSGI server with the given application.
 
         :param application: The application to run in the WSGI server
-        :param port: Port to bind to
+        :param conf: a cfg.ConfigOpts object
-        :param host: Host to bind to
+        :param default_port: Port to bind to if none is specified in conf
-        :param conf: Mapping of configuration options
         """
-        conf = conf or {}
+        socket = get_socket(conf, default_port)
-        socket = get_socket(host, port, conf)
         self.pool.spawn_n(self._run, application, socket)
 
     def wait(self):
@@ -409,11 +428,45 @@ class Resource(object):
         return args
 
 
-def _import_factory(conf, key):
+class BasePasteFactory(object):
-    return utils.import_class(conf[key].replace(':', '.').strip())
+
+    """A base class for paste app and filter factories.
+
+    Sub-classes must override the KEY class attribute and provide
+    a __call__ method.
+    """
+
+    KEY = None
+
+    def __init__(self, conf):
+        self.conf = conf
+
+    def __call__(self, global_conf, **local_conf):
+        raise NotImplementedError
+
+    def _import_factory(self, local_conf):
+        """Import an app/filter class.
+
+        Lookup the KEY from the PasteDeploy local conf and import the
+        class named there. This class can then be used as an app or
+        filter factory.
+
+        Note we support the <module>:<class> format.
+
+        Note also that if you do e.g.
+
+          key =
+              value
+
+        then ConfigParser returns a value with a leading newline, so
+        we strip() the value before using it.
+        """
+        class_name = local_conf[self.KEY].replace(':', '.').strip()
+        return utils.import_class(class_name)
 
 
-def app_factory(global_conf, **local_conf):
+class AppFactory(BasePasteFactory):
+
     """A Generic paste.deploy app factory.
 
     This requires glance.app_factory to be set to a callable which returns a
@@ -423,18 +476,20 @@ def app_factory(global_conf, **local_conf):
       paste.app_factory = glance.common.wsgi:app_factory
       glance.app_factory = glance.api.v1:API
 
-    The WSGI app constructor must accept a configuration dict as its only
+    The WSGI app constructor must accept a ConfigOpts object and a local config
-    argument.
+    dict as its two arguments.
     """
-    factory = _import_factory(local_conf, 'glance.app_factory')
 
-    conf = global_conf.copy()
+    KEY = 'glance.app_factory'
-    conf.update(local_conf)
 
-    return factory(conf)
+    def __call__(self, global_conf, **local_conf):
+        """The actual paste.app_factory protocol method."""
+        factory = self._import_factory(local_conf)
+        return factory(self.conf, **local_conf)
 
 
-def filter_factory(global_conf, **local_conf):
+class FilterFactory(AppFactory):
+
     """A Generic paste.deploy filter factory.
 
     This requires glance.filter_factory to be set to a callable which returns a
@@ -444,15 +499,66 @@ def filter_factory(global_conf, **local_conf):
       paste.filter_factory = glance.common.wsgi:filter_factory
       glance.filter_factory = glance.api.middleware.cache:CacheFilter
 
-    The WSGI filter constructor must accept a WSGI app and a configuration dict
+    The WSGI filter constructor must accept a WSGI app, a ConfigOpts object and
-    as its only two arguments.
+    a local config dict as its three arguments.
     """
-    factory = _import_factory(local_conf, 'glance.filter_factory')
 
-    conf = global_conf.copy()
+    KEY = 'glance.filter_factory'
-    conf.update(local_conf)
 
-    def filter(app):
+    def __call__(self, global_conf, **local_conf):
-        return factory(app, conf)
+        """The actual paste.filter_factory protocol method."""
+        factory = self._import_factory(local_conf)
 
-    return filter
+        def filter(app):
+            return factory(app, self.conf, **local_conf)
+
+        return filter
+
+
+def setup_paste_factories(conf):
+    """Set up the generic paste app and filter factories.
+
+    Set things up so that:
+
+      paste.app_factory = glance.common.wsgi:app_factory
+
+    and
+
+      paste.filter_factory = glance.common.wsgi:filter_factory
+
+    work correctly while loading PasteDeploy configuration.
+
+    The app factories are constructed at runtime to allow us to pass a
+    ConfigOpts object to the WSGI classes.
+
+    :param conf: a ConfigOpts object
+    """
+    global app_factory, filter_factory
+    app_factory = AppFactory(conf)
+    filter_factory = FilterFactory(conf)
+
+
+def teardown_paste_factories():
+    """Reverse the effect of setup_paste_factories()."""
+    global app_factory, filter_factory
+    del app_factory
+    del filter_factory
+
+
+def paste_deploy_app(paste_config_file, app_name, conf):
+    """Load a WSGI app from a PasteDeploy configuration.
+
+    Use deploy.loadapp() to load the app from the PasteDeploy configuration,
+    ensuring that the supplied ConfigOpts object is passed to the app and
+    filter constructors.
+
+    :param paste_config_file: a PasteDeploy config file
+    :param app_name: the name of the app/pipeline to load from the file
+    :param conf: a ConfigOpts object to supply to the app and its filters
+    :returns: the WSGI app
+    """
+    setup_paste_factories(conf)
+    try:
+        return deploy.loadapp("config:%s" % paste_config_file, name=app_name)
+    finally:
+        teardown_paste_factories()

glance/image_cache/__init__.py

@@ -22,7 +22,7 @@ LRU Cache for Image Data
 import logging
 import os
 
-from glance.common import config
+from glance.common import cfg
 from glance.common import exception
 from glance.common import utils
 
@@ -34,15 +34,23 @@ class ImageCache(object):
 
     """Provides an LRU cache for image data."""
 
+    opts = [
+        cfg.StrOpt('image_cache_driver', default='sqlite'),
+        cfg.IntOpt('image_cache_max_size', default=10 * (1024 ** 3)),  # 10 GB
+        cfg.IntOpt('image_cache_stall_time', default=86400),  # 24 hours
+        cfg.StrOpt('image_cache_dir'),
+        ]
+
     def __init__(self, conf):
         self.conf = conf
+        self.conf.register_opts(self.opts)
         self.init_driver()
 
     def init_driver(self):
         """
         Create the driver for the cache
         """
-        driver_name = self.conf.get('image_cache_driver', 'sqlite')
+        driver_name = self.conf.image_cache_driver
         driver_module = (__name__ + '.drivers.' + driver_name + '.Driver')
         try:
             self.driver_class = utils.import_class(driver_module)
@@ -150,8 +158,7 @@ class ImageCache(object):
         size. Returns a tuple containing the total number of cached
         files removed and the total size of all pruned image files.
         """
-        max_size = int(self.conf.get('image_cache_max_size',
+        max_size = self.conf.image_cache_max_size
-                                     DEFAULT_MAX_CACHE_SIZE))
         current_size = self.driver.get_cache_size()
         if max_size > current_size:
             logger.debug(_("Image cache has free space, skipping prune..."))
@@ -180,12 +187,12 @@ class ImageCache(object):
                        "%(total_bytes_pruned)d.") % locals())
         return total_files_pruned, total_bytes_pruned
 
-    def clean(self):
+    def clean(self, stall_time=None):
         """
         Cleans up any invalid or incomplete cached images. The cache driver
         decides what that means...
         """
-        self.driver.clean()
+        self.driver.clean(stall_time)
 
     def queue_image(self, image_id):
         """

glance/image_cache/cleaner.py

@@ -27,7 +27,7 @@ logger = logging.getLogger(__name__)
 
 
 class Cleaner(object):
-    def __init__(self, conf):
+    def __init__(self, conf, **local_conf):
         self.conf = conf
         self.cache = ImageCache(conf)
 

glance/image_cache/drivers/base.py

@@ -60,11 +60,9 @@ class Driver(object):
         Creates all necessary directories under the base cache directory
         """
 
-        try:
+        self.base_dir = self.conf.image_cache_dir
-            key = 'image_cache_dir'
+        if self.base_dir is None:
-            self.base_dir = self.conf[key]
+            msg = _('Failed to read %s from config') % 'image_cache_dir'
-        except KeyError:
-            msg = _('Failed to read %s from config') % key
             logger.error(msg)
             driver = self.__class__.__module__
             raise exception.BadDriverConfiguration(driver_name=driver,
@@ -168,7 +166,7 @@ class Driver(object):
         :param image_id: Image ID
         """
 
-    def clean(self):
+    def clean(self, stall_time=None):
         """
         Dependent on the driver, clean up and destroy any invalid or incomplete
         cached images

glance/image_cache/drivers/sqlite.py

@@ -31,13 +31,12 @@ import time
 from eventlet import sleep, timeout
 import sqlite3
 
+from glance.common import cfg
 from glance.common import exception
 from glance.image_cache.drivers import base
 
 logger = logging.getLogger(__name__)
 DEFAULT_SQL_CALL_TIMEOUT = 2
-DEFAULT_STALL_TIME = 86400  # 24 hours
-DEFAULT_SQLITE_DB = 'cache.db'
 
 
 class SqliteConnection(sqlite3.Connection):
@@ -82,6 +81,10 @@ class Driver(base.Driver):
     that has atimes set.
     """
 
+    opts = [
+        cfg.StrOpt('image_cache_sqlite_db', default='cache.db'),
+        ]
+
     def configure(self):
         """
         Configure the driver to use the stored configuration options
@@ -91,11 +94,13 @@ class Driver(base.Driver):
         """
         super(Driver, self).configure()
 
+        self.conf.register_opts(self.opts)
+
         # Create the SQLite database that will hold our cache attributes
         self.initialize_db()
 
     def initialize_db(self):
-        db = self.conf.get('image_cache_sqlite_db', DEFAULT_SQLITE_DB)
+        db = self.conf.image_cache_sqlite_db
         self.db_path = os.path.join(self.base_dir, db)
         try:
             conn = sqlite3.connect(self.db_path, check_same_thread=False,
@@ -244,7 +249,7 @@ class Driver(base.Driver):
         if os.path.exists(path):
             os.unlink(path)
 
-    def clean(self):
+    def clean(self, stall_time=None):
         """
         Delete any image files in the invalid directory and any
         files in the incomplete directory that are older than a
@@ -252,10 +257,11 @@ class Driver(base.Driver):
         """
         self.delete_invalid_files()
 
-        incomplete_stall_time = int(self.conf.get('image_cache_stall_time',
+        if stall_time is None:
-                                                  DEFAULT_STALL_TIME))
+            stall_time = self.conf.image_cache_stall_time
+
         now = time.time()
-        older_than = now - incomplete_stall_time
+        older_than = now - stall_time
         self.delete_stalled_files(older_than)
 
     def get_least_recently_accessed(self):

glance/image_cache/drivers/xattr.py

@@ -70,8 +70,6 @@ from glance.image_cache.drivers import base
 
 logger = logging.getLogger(__name__)
 
-DEFAULT_STALL_TIME = 86400  # 24 hours
-
 
 class Driver(base.Driver):
 
@@ -416,7 +414,7 @@ class Driver(base.Driver):
         return self._reap_old_files(self.incomplete_dir, 'stalled',
                                     grace=grace)
 
-    def clean(self):
+    def clean(self, stall_time=None):
         """
         Delete any image files in the invalid directory and any
         files in the incomplete directory that are older than a
@@ -424,9 +422,10 @@ class Driver(base.Driver):
         """
         self.reap_invalid()
 
-        incomplete_stall_time = int(self.conf.get('image_cache_stall_time',
+        if stall_time is None:
-                                                  DEFAULT_STALL_TIME))
+            stall_time = self.conf.image_cache_stall_time
-        self.reap_stalled(incomplete_stall_time)
+
+        self.reap_stalled(stall_time)
 
 
 def get_all_regular_files(basepath):

glance/image_cache/prefetcher.py

@@ -23,8 +23,6 @@ import logging
 
 import eventlet
 
-from glance.common import config
-from glance.common import context
 from glance.common import exception
 from glance.image_cache import ImageCache
 from glance import registry
@@ -42,16 +40,15 @@ logger = logging.getLogger(__name__)
 
 class Prefetcher(object):
 
-    def __init__(self, conf):
+    def __init__(self, conf, **local_conf):
         self.conf = conf
         glance.store.create_stores(conf)
         self.cache = ImageCache(conf)
         registry.configure_registry_client(conf)
 
     def fetch_image_into_cache(self, image_id):
-        auth_tok = self.conf.get('admin_token')
+        ctx = registry.get_client_context(self.conf,
-        ctx = context.RequestContext(is_admin=True, show_deleted=True,
+                                          is_admin=True, show_deleted=True)
-                                     auth_tok=auth_tok)
         try:
             image_meta = registry.get_image_metadata(ctx, image_id)
             if image_meta['status'] != 'active':

glance/image_cache/pruner.py

@@ -27,7 +27,7 @@ logger = logging.getLogger(__name__)
 
 
 class Pruner(object):
-    def __init__(self, conf):
+    def __init__(self, conf, **local_conf):
         self.conf = conf
         self.cache = ImageCache(conf)
 

glance/image_cache/queue_image.py

@@ -23,8 +23,6 @@ import logging
 
 import eventlet
 
-from glance.common import config
-from glance.common import context
 from glance.common import exception
 from glance.image_cache import ImageCache
 from glance import registry
@@ -35,15 +33,14 @@ logger = logging.getLogger(__name__)
 
 class Queuer(object):
 
-    def __init__(self, conf):
+    def __init__(self, conf, **local_conf):
         self.conf = conf
         self.cache = ImageCache(conf)
         registry.configure_registry_client(conf)
 
     def queue_image(self, image_id):
-        auth_tok = self.conf.get('admin_token')
+        ctx = \
-        ctx = context.RequestContext(is_admin=True, show_deleted=True,
+            registry.get_client_context(conf, is_admin=True, show_deleted=True)
-                                     auth_tok=auth_tok)
         try:
             image_meta = registry.get_image_metadata(ctx, image_id)
             if image_meta['status'] != 'active':

glance/registry/__init__.py

@@ -21,7 +21,7 @@ Registry API
 
 import logging
 
-from glance.common import config
+from glance.common import cfg
 from glance.common import exception
 from glance.registry import client
 
@@ -34,6 +34,25 @@ _CLIENT_KWARGS = {}
 _METADATA_ENCRYPTION_KEY = None
 
 
+registry_addr_opts = [
+    cfg.StrOpt('registry_host', default='0.0.0.0'),
+    cfg.IntOpt('registry_port', default=9191),
+    ]
+registry_client_opts = [
+    cfg.StrOpt('registry_client_protocol', default='http'),
+    cfg.StrOpt('registry_client_key_file'),
+    cfg.StrOpt('registry_client_cert_file'),
+    cfg.StrOpt('registry_client_ca_file'),
+    cfg.StrOpt('metadata_encryption_key'),
+    ]
+admin_token_opt = cfg.StrOpt('admin_token')
+
+
+def get_registry_addr(conf):
+    conf.register_opts(registry_addr_opts)
+    return (conf.registry_host, conf.registry_port)
+
+
 def configure_registry_client(conf):
     """
     Sets up a registry client for use in registry lookups
@@ -42,9 +61,8 @@ def configure_registry_client(conf):
     """
     global _CLIENT_KWARGS, _CLIENT_HOST, _CLIENT_PORT, _METADATA_ENCRYPTION_KEY
     try:
-        host = conf['registry_host']
+        host, port = get_registry_addr(conf)
-        port = int(conf['registry_port'])
+    except cfg.ConfigFileValueError:
-    except (TypeError, ValueError):
         msg = _("Configuration option was not valid")
         logger.error(msg)
         raise exception.BadRegistryConnectionConfiguration(msg)
@@ -53,18 +71,23 @@ def configure_registry_client(conf):
         logger.error(msg)
         raise exception.BadRegistryConnectionConfiguration(msg)
 
-    use_ssl = config.get_option(conf, 'registry_client_protocol',
+    conf.register_opts(registry_client_opts)
-                                default='http').lower() == 'https'
+
-    key_file = conf.get('registry_client_key_file')
-    cert_file = conf.get('registry_client_cert_file')
-    ca_file = conf.get('registry_client_ca_file')
-    _METADATA_ENCRYPTION_KEY = conf.get('metadata_encryption_key')
     _CLIENT_HOST = host
     _CLIENT_PORT = port
-    _CLIENT_KWARGS = {'use_ssl': use_ssl,
+    _METADATA_ENCRYPTION_KEY = conf.metadata_encryption_key
-                      'key_file': key_file,
+    _CLIENT_KWARGS = {
-                      'cert_file': cert_file,
+        'use_ssl': conf.registry_client_protocol.lower() == 'https',
-                      'ca_file': ca_file}
+        'key_file': conf.registry_client_key_file,
+        'cert_file': conf.registry_client_cert_file,
+        'ca_file': conf.registry_client_ca_file
+        }
+
+
+def get_client_context(conf, **kwargs):
+    conf.register_opt(admin_token_opt)
+    from glance.common import context
+    return context.RequestContext(auth_tok=conf.admin_token, **kwargs)
 
 
 def get_registry_client(cxt):

glance/registry/api/v1/__init__.py

@@ -25,7 +25,7 @@ from glance.common import wsgi
 class API(wsgi.Router):
     """WSGI entry point for all Registry requests."""
 
-    def __init__(self, conf):
+    def __init__(self, conf, **local_conf):
         mapper = routes.Mapper()
 
         images_resource = images.create_resource(conf)

glance/registry/api/v1/images.py

@@ -23,6 +23,7 @@ import logging
 
 from webob import exc
 
+from glance.common import cfg
 from glance.common import exception
 from glance.common import utils
 from glance.common import wsgi
@@ -49,8 +50,14 @@ SUPPORTED_PARAMS = ('limit', 'marker', 'sort_key', 'sort_dir')
 
 class Controller(object):
 
+    opts = [
+        cfg.IntOpt('limit_param_default', default=25),
+        cfg.IntOpt('api_limit_max', default=1000),
+        ]
+
     def __init__(self, conf):
         self.conf = conf
+        self.conf.register_opts(self.opts)
         db_api.configure_db(conf)
 
     def _get_images(self, context, **params):
@@ -181,31 +188,15 @@ class Controller(object):
     def _get_limit(self, req):
         """Parse a limit query param into something usable."""
         try:
-            default = self.conf['limit_param_default']
+            limit = int(req.str_params.get('limit',
-        except KeyError:
+                                           self.conf.limit_param_default))
-            # if no value is configured, provide a sane default
-            default = 25
-            msg = _("Failed to read limit_param_default from config. "
-                    "Defaulting to %s") % default
-            logger.debug(msg)
-
-        try:
-            limit = int(req.str_params.get('limit', default))
         except ValueError:
             raise exc.HTTPBadRequest(_("limit param must be an integer"))
 
         if limit < 0:
             raise exc.HTTPBadRequest(_("limit param must be positive"))
 
-        try:
+        return min(self.conf.api_limit_max, limit)
-            api_limit_max = int(self.conf['api_limit_max'])
-        except (KeyError, ValueError):
-            api_limit_max = 1000
-            msg = _("Failed to read api_limit_max from config. "
-                    "Defaulting to %s") % api_limit_max
-            logger.debug(msg)
-
-        return min(api_limit_max, limit)
 
     def _get_marker(self, req):
         """Parse a marker query param into something usable."""

glance/registry/db/__init__.py

@@ -17,23 +17,24 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import optparse
+from glance.common import cfg
 
 
-def add_conf(parser):
+def add_options(conf):
     """
     Adds any configuration options that the db layer might have.
 
-    :param parser: An optparse.OptionParser object
+    :param conf: A ConfigOpts object
     :retval None
     """
-    help_text = "The following configuration options are specific to the "\
+    conf.add_group(cfg.OptGroup('registrydb',
-                "Glance image registry database."
+                                title='Registry Database Options',
-
+                                help='The following configuration options '
-    group = optparse.OptionGroup(parser, "Registry Database Options",
+                                     'are specific to the Glance image '
-                                 help_text)
+                                     'registry database.'))
-    group.add_option('--sql-connection', metavar="CONNECTION",
+    conf.register_cli_opt(cfg.StrOpt('sql-connection',
-                     default=None,
+                                     group='registrydb',
-                     help="A valid SQLAlchemy connection string for the "
+                                     metavar='CONNECTION',
-                          "registry database. Default: %default")
+                                     help='A valid SQLAlchemy connection '
-    parser.add_option_group(group)
+                                          'string for the registry database. '
+                                          'Default: %default'))

glance/registry/db/api.py

@@ -31,7 +31,7 @@ from sqlalchemy.orm import joinedload
 from sqlalchemy.orm import sessionmaker
 from sqlalchemy.sql import or_, and_
 
-from glance.common import config
+from glance.common import cfg
 from glance.common import exception
 from glance.common import utils
 from glance.registry.db import models
@@ -57,6 +57,11 @@ DISK_FORMATS = ['ami', 'ari', 'aki', 'vhd', 'vmdk', 'raw', 'qcow2', 'vdi',
 STATUSES = ['active', 'saving', 'queued', 'killed', 'pending_delete',
             'deleted']
 
+db_opts = [
+    cfg.IntOpt('sql_idle_timeout', default=3600),
+    cfg.StrOpt('sql_connection', default='sqlite:///glance.sqlite'),
+    ]
+
 
 def configure_db(conf):
     """
@@ -67,13 +72,9 @@ def configure_db(conf):
     """
     global _ENGINE, sa_logger, logger
     if not _ENGINE:
-        debug = config.get_option(
+        conf.register_opts(db_opts)
-            conf, 'debug', type='bool', default=False)
+        timeout = conf.sql_idle_timeout
-        verbose = config.get_option(
+        sql_connection = conf.sql_connection
-            conf, 'verbose', type='bool', default=False)
-        timeout = config.get_option(
-            conf, 'sql_idle_timeout', type='int', default=3600)
-        sql_connection = config.get_option(conf, 'sql_connection')
         try:
             _ENGINE = create_engine(sql_connection, pool_recycle=timeout)
         except Exception, err:
@@ -84,9 +85,9 @@ def configure_db(conf):
             raise
 
         sa_logger = logging.getLogger('sqlalchemy.engine')
-        if debug:
+        if conf.debug:
             sa_logger.setLevel(logging.DEBUG)
-        elif verbose:
+        elif conf.verbose:
             sa_logger.setLevel(logging.INFO)
 
         models.register_models(_ENGINE)

glance/registry/db/migration.py

@@ -40,7 +40,7 @@ def db_version(conf):
     :retval version number
     """
     repo_path = get_migrate_repo_path()
-    sql_connection = conf['sql_connection']
+    sql_connection = conf.sql_connection
     try:
         return versioning_api.db_version(sql_connection, repo_path)
     except versioning_exceptions.DatabaseNotControlledError, e:
@@ -59,7 +59,7 @@ def upgrade(conf, version=None):
     """
     db_version(conf)  # Ensure db is under migration control
     repo_path = get_migrate_repo_path()
-    sql_connection = conf['sql_connection']
+    sql_connection = conf.sql_connection
     version_str = version or 'latest'
     logger.info(_("Upgrading %(sql_connection)s to version %(version_str)s") %
                 locals())
@@ -76,7 +76,7 @@ def downgrade(conf, version):
     """
     db_version(conf)  # Ensure db is under migration control
     repo_path = get_migrate_repo_path()
-    sql_connection = conf['sql_connection']
+    sql_connection = conf.sql_connection
     logger.info(_("Downgrading %(sql_connection)s to version %(version)s") %
                 locals())
     return versioning_api.downgrade(sql_connection, repo_path, version)
@@ -88,7 +88,7 @@ def version_control(conf):
 
     :param conf: conf dict
     """
-    sql_connection = conf['sql_connection']
+    sql_connection = conf.sql_connection
     try:
         _version_control(conf)
     except versioning_exceptions.DatabaseAlreadyControlledError, e:
@@ -104,7 +104,7 @@ def _version_control(conf):
     :param conf: conf dict
     """
     repo_path = get_migrate_repo_path()
-    sql_connection = conf['sql_connection']
+    sql_connection = conf.sql_connection
     return versioning_api.version_control(sql_connection, repo_path)
 
 

glance/store/__init__.py

@@ -22,7 +22,7 @@ import time
 import urlparse
 
 from glance import registry
-from glance.common import config
+from glance.common import cfg
 from glance.common import exception
 from glance.common import utils
 from glance.store import location
@@ -154,13 +154,27 @@ def get_store_from_location(uri):
     return loc.store_name
 
 
+scrubber_datadir_opt = cfg.StrOpt('scrubber_datadir',
+                                  default='/var/lib/glance/scrubber')
+
+
+def get_scrubber_datadir(conf):
+    conf.register_opt(scrubber_datadir_opt)
+    return conf.scrubber_datadir
+
+
+delete_opts = [
+    cfg.BoolOpt('delayed_delete', default=False),
+    cfg.IntOpt('scrub_time', default=0)
+    ]
+
+
 def schedule_delete_from_backend(uri, conf, context, image_id, **kwargs):
     """
     Given a uri and a time, schedule the deletion of an image.
     """
-    use_delay = config.get_option(conf, 'delayed_delete', type='bool',
+    conf.register_opts(delete_opts)
-                                  default=False)
+    if not conf.delayed_delete:
-    if not use_delay:
         registry.update_image_metadata(context, image_id,
                                        {'status': 'deleted'})
         try:
@@ -169,10 +183,8 @@ def schedule_delete_from_backend(uri, conf, context, image_id, **kwargs):
             msg = _("Failed to delete image from store (%(uri)s).") % locals()
             logger.error(msg)
 
-    datadir = config.get_option(conf, 'scrubber_datadir')
+    datadir = get_scrubber_datadir(conf)
-    scrub_time = config.get_option(conf, 'scrub_time', type='int',
+    delete_time = time.time() + conf.scrub_time
-                                   default=0)
-    delete_time = time.time() + scrub_time
     file_path = os.path.join(datadir, str(image_id))
     utils.safe_mkdirs(datadir)
 

glance/store/base.py

@@ -28,13 +28,13 @@ class Store(object):
 
     CHUNKSIZE = (16 * 1024 * 1024)  # 16M
 
-    def __init__(self, conf=None):
+    def __init__(self, conf):
         """
         Initialize the Store
 
         :param conf: Optional dictionary of configuration options
         """
-        self.conf = conf or {}
+        self.conf = conf
 
         self.configure()
 

glance/store/filesystem.py

@@ -24,6 +24,7 @@ import logging
 import os
 import urlparse
 
+from glance.common import cfg
 from glance.common import exception
 import glance.store
 import glance.store.base
@@ -93,6 +94,8 @@ class ChunkedFile(object):
 
 class Store(glance.store.base.Store):
 
+    datadir_opt = cfg.StrOpt('filesystem_store_datadir')
+
     def configure_add(self):
         """
         Configure the Store to use the stored configuration options
@@ -100,7 +103,15 @@ class Store(glance.store.base.Store):
         this method. If the store was not able to successfully configure
         itself, it should raise `exception.BadStoreConfiguration`
         """
-        self.datadir = self._option_get('filesystem_store_datadir')
+        self.conf.register_opt(self.datadir_opt)
+
+        self.datadir = self.conf.filesystem_store_datadir
+        if self.datadir is None:
+            reason = _("Could not find %s in configuration options.") % \
+                'filesystem_store_datadir'
+            logger.error(reason)
+            raise exception.BadStoreConfiguration(store_name="filesystem",
+                                                  reason=reason)
 
         if not os.path.exists(self.datadir):
             msg = _("Directory to write image files does not exist "
@@ -114,15 +125,6 @@ class Store(glance.store.base.Store):
                 raise exception.BadStoreConfiguration(store_name="filesystem",
                                                       reason=reason)
 
-    def _option_get(self, param):
-        result = self.conf.get(param)
-        if not result:
-            reason = _("Could not find %s in configuration options.") % param
-            logger.error(reason)
-            raise exception.BadStoreConfiguration(store_name="filesystem",
-                                                  reason=reason)
-        return result
-
     def get(self, location):
         """
         Takes a `glance.store.location.Location` object that indicates

glance/store/rbd.py

@@ -24,6 +24,7 @@ import hashlib
 import logging
 import math
 
+from glance.common import cfg
 from glance.common import exception
 import glance.store
 import glance.store.base
@@ -100,6 +101,13 @@ class Store(glance.store.base.Store):
 
     EXAMPLE_URL = "rbd://<IMAGE>"
 
+    opts = [
+        cfg.IntOpt('rbd_store_chunk_size', default=DEFAULT_CHUNKSIZE),
+        cfg.StrOpt('rbd_store_pool', default=DEFAULT_POOL),
+        cfg.StrOpt('rbd_store_user', default=DEFAULT_USER),
+        cfg.StrOpt('rbd_store_ceph_conf', default=DEFAULT_CONFFILE),
+        ]
+
     def configure_add(self):
         """
         Configure the Store to use the stored configuration options
@@ -107,20 +115,16 @@ class Store(glance.store.base.Store):
         this method. If the store was not able to successfully configure
         itself, it should raise `exception.BadStoreConfiguration`
         """
+        self.conf.register_opts(self.opts)
         try:
-            self.chunk_size = int(
+            self.chunk_size = self.conf.rbd_store_chunk_size * 1024 * 1024
-                self.conf.get(
+
-                    'rbd_store_chunk_size',
-                    DEFAULT_CHUNKSIZE)) * 1024 * 1024
             # these must not be unicode since they will be passed to a
             # non-unicode-aware C library
-            self.pool = str(self.conf.get('rbd_store_pool',
+            self.pool = str(self.conf.rbd_store_pool)
-                                             DEFAULT_POOL))
+            self.user = str(self.conf.rbd_store_user)
-            self.user = str(self.conf.get('rbd_store_user',
+            self.conf_file = str(self.conf.rbd_store_ceph_conf)
-                                             DEFAULT_USER))
+        except cfg.ConfigFileValueError, e:
-            self.conf_file = str(self.conf.get('rbd_store_ceph_conf',
-                                                  DEFAULT_CONFFILE))
-        except Exception, e:
             reason = _("Error in store configuration: %s") % e
             logger.error(reason)
             raise exception.BadStoreConfiguration(store_name='rbd',

glance/store/s3.py

@@ -23,7 +23,7 @@ import httplib
 import tempfile
 import urlparse
 
-from glance.common import config
+from glance.common import cfg
 from glance.common import exception
 import glance.store
 import glance.store.base
@@ -183,6 +183,15 @@ class Store(glance.store.base.Store):
 
     EXAMPLE_URL = "s3://<ACCESS_KEY>:<SECRET_KEY>@<S3_URL>/<BUCKET>/<OBJ>"
 
+    opts = [
+        cfg.StrOpt('s3_store_host'),
+        cfg.StrOpt('s3_store_access_key'),
+        cfg.StrOpt('s3_store_secret_key'),
+        cfg.StrOpt('s3_store_bucket'),
+        cfg.StrOpt('s3_store_object_buffer_dir'),
+        cfg.BoolOpt('s3_store_create_bucket_on_put', default=False),
+        ]
+
     def configure_add(self):
         """
         Configure the Store to use the stored configuration options
@@ -190,6 +199,7 @@ class Store(glance.store.base.Store):
         this method. If the store was not able to successfully configure
         itself, it should raise `exception.BadStoreConfiguration`
         """
+        self.conf.register_opts(self.opts)
         self.s3_host = self._option_get('s3_store_host')
         access_key = self._option_get('s3_store_access_key')
         secret_key = self._option_get('s3_store_secret_key')
@@ -210,14 +220,11 @@ class Store(glance.store.base.Store):
         else:  # Defaults http
             self.full_s3_host = 'http://' + self.s3_host
 
-        if self.conf.get('s3_store_object_buffer_dir'):
+        self.s3_store_object_buffer_dir = \
-            self.s3_store_object_buffer_dir = self.conf.get(
+            self.conf.s3_store_object_buffer_dir
-                's3_store_object_buffer_dir')
-        else:
-            self.s3_store_object_buffer_dir = None
 
     def _option_get(self, param):
-        result = self.conf.get(param)
+        result = getattr(self.conf, param)
         if not result:
             reason = _("Could not find %(param)s in configuration "
                        "options.") % locals()
@@ -417,10 +424,7 @@ def create_bucket_if_missing(bucket, s3_conn, conf):
         s3_conn.get_bucket(bucket)
     except S3ResponseError, e:
         if e.status == httplib.NOT_FOUND:
-            add_bucket = config.get_option(conf,
+            if conf.s3_store_create_bucket_on_put:
-                                's3_store_create_bucket_on_put',
-                                type='bool', default=False)
-            if add_bucket:
                 try:
                     s3_conn.create_bucket(bucket)
                 except S3ResponseError, e:

glance/store/scrubber.py

@@ -27,7 +27,7 @@ import glance.store.s3
 import glance.store.swift
 from glance import registry
 from glance import store
-from glance.common import config
+from glance.common import cfg
 from glance.common import utils
 from glance.common import exception
 from glance.registry import context
@@ -65,22 +65,30 @@ class Daemon(object):
 class Scrubber(object):
     CLEANUP_FILE = ".cleanup"
 
-    def __init__(self, conf):
+    opts = [
-        logger.info(_("Initializing scrubber with conf: %s") % conf)
+        cfg.BoolOpt('cleanup_scrubber', default=False),
+        cfg.IntOpt('cleanup_scrubber_time', default=86400)
+        ]
+
+    def __init__(self, conf, **local_conf):
         self.conf = conf
-        self.datadir = config.get_option(conf, 'scrubber_datadir')
+        self.conf.register_opts(self.opts)
-        self.cleanup = config.get_option(conf, 'cleanup_scrubber',
+
-                                         type='bool', default=False)
+        self.datadir = store.get_scrubber_datadir(conf)
-        host = config.get_option(conf, 'registry_host')
+        self.cleanup = self.conf.cleanup_scrubber
-        port = config.get_option(conf, 'registry_port', type='int')
+        self.cleanup_time = self.conf.cleanup_scrubber_time
+
+        host, port = registry.get_registry_addr(conf)
+
+        logger.info(_("Initializing scrubber with conf: %s") %
+                    {'datadir': self.datadir, 'cleanup': self.cleanup,
+                     'cleanup_time': self.cleanup_time,
+                     'registry_host': host, 'registry_port': port})
+
         self.registry = client.RegistryClient(host, port)
 
         utils.safe_mkdirs(self.datadir)
 
-        if self.cleanup:
-            self.cleanup_time = config.get_option(conf,
-                                                  'cleanup_scrubber_time',
-                                                  type='int', default=86400)
         store.create_stores(conf)
 
     def run(self, pool, event=None):

glance/store/swift.py

@@ -26,7 +26,7 @@ import math
 import tempfile
 import urlparse
 
-from glance.common import config
+from glance.common import cfg
 from glance.common import exception
 import glance.store
 import glance.store.base
@@ -38,8 +38,8 @@ except ImportError:
     pass
 
 DEFAULT_CONTAINER = 'glance'
-DEFAULT_LARGE_OBJECT_SIZE = 5 * 1024 * 1024 * 1024  # 5GB
+DEFAULT_LARGE_OBJECT_SIZE = 5 * 1024  # 5GB
-DEFAULT_LARGE_OBJECT_CHUNK_SIZE = 200 * 1024 * 1024  # 200M
+DEFAULT_LARGE_OBJECT_CHUNK_SIZE = 200  # 200M
 
 logger = logging.getLogger('glance.store.swift')
 
@@ -185,9 +185,24 @@ class Store(glance.store.base.Store):
 
     CHUNKSIZE = 65536
 
+    opts = [
+        cfg.BoolOpt('swift_enable_snet', default=False),
+        cfg.StrOpt('swift_store_auth_address'),
+        cfg.StrOpt('swift_store_user'),
+        cfg.StrOpt('swift_store_key'),
+        cfg.StrOpt('swift_store_container',
+                   default=DEFAULT_CONTAINER),
+        cfg.IntOpt('swift_store_large_object_size',
+                   default=DEFAULT_LARGE_OBJECT_SIZE),
+        cfg.IntOpt('swift_store_large_object_chunk_size',
+                   default=DEFAULT_LARGE_OBJECT_CHUNK_SIZE),
+        cfg.StrOpt('swift_store_object_buffer_dir'),
+        cfg.BoolOpt('swift_store_create_container_on_put', default=False),
+        ]
+
     def configure(self):
-        self.snet = config.get_option(
+        self.conf.register_opts(self.opts)
-            self.conf, 'swift_enable_snet', type='bool', default=False)
+        self.snet = self.conf.swift_enable_snet
 
     def configure_add(self):
         """
@@ -199,29 +214,14 @@ class Store(glance.store.base.Store):
         self.auth_address = self._option_get('swift_store_auth_address')
         self.user = self._option_get('swift_store_user')
         self.key = self._option_get('swift_store_key')
-        self.container = self.conf.get('swift_store_container',
+        self.container = self.conf.swift_store_container
-                                          DEFAULT_CONTAINER)
         try:
-            if self.conf.get('swift_store_large_object_size'):
+            self.large_object_size = self.conf.swift_store_large_object_size
-                self.large_object_size = int(
+            self.large_object_chunk_size = \
-                    self.conf.get('swift_store_large_object_size')
+                self.conf.swift_store_large_object_chunk_size
-                    ) * (1024 * 1024)  # Size specified in MB in conf files
+            self.swift_store_object_buffer_dir = \
-            else:
+                self.conf.swift_store_object_buffer_dir
-                self.large_object_size = DEFAULT_LARGE_OBJECT_SIZE
+        except cfg.ConfigFileValueError, e:
-
-            if self.conf.get('swift_store_large_object_chunk_size'):
-                self.large_object_chunk_size = int(
-                    self.conf.get('swift_store_large_object_chunk_size')
-                    ) * (1024 * 1024)  # Size specified in MB in conf files
-            else:
-                self.large_object_chunk_size = DEFAULT_LARGE_OBJECT_CHUNK_SIZE
-
-            if self.conf.get('swift_store_object_buffer_dir'):
-                self.swift_store_object_buffer_dir = (
-                    self.conf.get('swift_store_object_buffer_dir'))
-            else:
-                self.swift_store_object_buffer_dir = None
-        except Exception, e:
             reason = _("Error in configuration conf: %s") % e
             logger.error(reason)
             raise exception.BadStoreConfiguration(store_name="swift",
@@ -283,7 +283,7 @@ class Store(glance.store.base.Store):
             authurl=auth_url, user=user, key=key, snet=snet)
 
     def _option_get(self, param):
-        result = self.conf.get(param)
+        result = getattr(self.conf, param)
         if not result:
             reason = (_("Could not find %(param)s in configuration "
                         "options.") % locals())
@@ -495,10 +495,7 @@ def create_container_if_missing(container, swift_conn, conf):
         swift_conn.head_container(container)
     except swift_client.ClientException, e:
         if e.http_status == httplib.NOT_FOUND:
-            add_container = config.get_option(conf,
+            if conf.swift_store_create_container_on_put:
-                                'swift_store_create_container_on_put',
-                                type='bool', default=False)
-            if add_container:
                 try:
                     swift_conn.put_container(container)
                 except ClientException, e:

glance/tests/functional/test_bin_glance_cache_manage.py

@@ -226,7 +226,8 @@ glance.app_factory = glance.image_cache.queue_image:Queuer
 """ % cache_file_options)
             cache_file.flush()
 
-        cmd = "bin/glance-cache-prefetcher %s" % cache_config_filepath
+        cmd = "bin/glance-cache-prefetcher --config-file %s" % \
+            cache_config_filepath
 
         exitcode, out, err = execute(cmd)
 

glance/tests/functional/test_cache_middleware.py

@@ -374,7 +374,8 @@ glance.app_factory = glance.image_cache.queue_image:Queuer
 
         self.verify_no_cached_images()
 
-        cmd = "bin/glance-cache-prefetcher %s" % cache_config_filepath
+        cmd = "bin/glance-cache-prefetcher --config-file %s" % \
+            cache_config_filepath
 
         exitcode, out, err = execute(cmd)
 

glance/tests/functional/test_client_redirects.py

@@ -86,8 +86,9 @@ class TestClientRedirects(functional.FunctionalTest):
         self.port_two = utils.get_unused_port()
         server_one = wsgi.Server()
         server_two = wsgi.Server()
-        server_one.start(RedirectTestApp("one"), self.port_one, "127.0.0.1")
+        conf = utils.TestConfigOpts({'bind_host': '127.0.0.1'})
-        server_two.start(RedirectTestApp("two"), self.port_two, "127.0.0.1")
+        server_one.start(RedirectTestApp("one"), conf, self.port_one)
+        server_two.start(RedirectTestApp("two"), conf, self.port_two)
         self.client = client.BaseClient("127.0.0.1", self.port_one)
 
     def test_get_without_redirect(self):

glance/tests/stubs.py

@@ -28,6 +28,7 @@ import glance.common.client
 from glance.common import context
 from glance.common import exception
 from glance.registry.api import v1 as rserver
+from glance.tests import utils
 
 
 FAKE_FILESYSTEM_ROOTDIR = os.path.join('/tmp', 'glance-tests')
@@ -97,9 +98,13 @@ def stub_out_registry_and_store_server(stubs):
             sql_connection = os.environ.get('GLANCE_SQL_CONNECTION',
                                             "sqlite://")
             context_class = 'glance.registry.context.RequestContext'
-            conf = {'sql_connection': sql_connection, 'verbose': VERBOSE,
+            conf = utils.TestConfigOpts({
-                    'debug': DEBUG, 'context_class': context_class}
+                    'sql_connection': sql_connection,
-            api = context.ContextMiddleware(rserver.API(conf), conf)
+                    'verbose': VERBOSE,
+                    'debug': DEBUG
+                    })
+            api = context.ContextMiddleware(rserver.API(conf),
+                                            conf, context_class=context_class)
             res = self.req.get_response(api)
 
             # httplib.Response has a read() method...fake it out
@@ -145,14 +150,16 @@ def stub_out_registry_and_store_server(stubs):
                 self.req.body = body
 
         def getresponse(self):
-            conf = {'verbose': VERBOSE,
+            conf = utils.TestConfigOpts({
+                    'verbose': VERBOSE,
                     'debug': DEBUG,
                     'bind_host': '0.0.0.0',
                     'bind_port': '9999999',
                     'registry_host': '0.0.0.0',
                     'registry_port': '9191',
                     'default_store': 'file',
-                    'filesystem_store_datadir': FAKE_FILESYSTEM_ROOTDIR}
+                    'filesystem_store_datadir': FAKE_FILESYSTEM_ROOTDIR
+                    })
             api = version_negotiation.VersionNegotiationFilter(
                 context.ContextMiddleware(router.API(conf), conf),
                 conf)
@@ -218,9 +225,13 @@ def stub_out_registry_server(stubs, **kwargs):
         def getresponse(self):
             sql_connection = kwargs.get('sql_connection', "sqlite:///")
             context_class = 'glance.registry.context.RequestContext'
-            conf = {'sql_connection': sql_connection, 'verbose': VERBOSE,
+            conf = utils.TestConfigOpts({
-                    'debug': DEBUG, 'context_class': context_class}
+                    'sql_connection': sql_connection,
-            api = context.ContextMiddleware(rserver.API(conf), conf)
+                    'verbose': VERBOSE,
+                    'debug': DEBUG
+                    })
+            api = context.ContextMiddleware(rserver.API(conf),
+                                            conf, context_class=context_class)
             res = self.req.get_response(api)
 
             # httplib.Response has a read() method...fake it out

glance/tests/unit/test_api.py

@@ -34,6 +34,7 @@ from glance.registry.api import v1 as rserver
 from glance.registry.db import api as db_api
 from glance.registry.db import models as db_models
 from glance.tests import stubs
+from glance.tests import utils as test_utils
 
 
 _gen_uuid = utils.generate_uuid
@@ -48,8 +49,7 @@ CONF = {'sql_connection': 'sqlite://',
         'registry_host': '0.0.0.0',
         'registry_port': '9191',
         'default_store': 'file',
-        'filesystem_store_datadir': stubs.FAKE_FILESYSTEM_ROOTDIR,
+        'filesystem_store_datadir': stubs.FAKE_FILESYSTEM_ROOTDIR}
-        'context_class': 'glance.registry.context.RequestContext'}
 
 
 class TestRegistryDb(unittest.TestCase):
@@ -64,9 +64,11 @@ class TestRegistryDb(unittest.TestCase):
         API controller results in a) an Exception being thrown and b)
         a message being logged to the registry log file...
         """
-        bad_conf = {'verbose': True,
+        bad_conf = test_utils.TestConfigOpts({
-                    'debug': True,
+                'verbose': True,
-                    'sql_connection': 'baddriver:///'}
+                'debug': True,
+                'sql_connection': 'baddriver:///'
+                })
         # We set this to None to trigger a reconfigure, otherwise
         # other modules may have already correctly configured the DB
         orig_engine = db_api._ENGINE
@@ -101,7 +103,10 @@ class TestRegistryAPI(unittest.TestCase):
         self.stubs = stubout.StubOutForTesting()
         stubs.stub_out_registry_and_store_server(self.stubs)
         stubs.stub_out_filesystem_backend()
-        self.api = context.ContextMiddleware(rserver.API(CONF), CONF)
+        conf = test_utils.TestConfigOpts(CONF)
+        context_class = 'glance.registry.context.RequestContext'
+        self.api = context.ContextMiddleware(rserver.API(conf),
+                                             conf, context_class=context_class)
         self.FIXTURES = [
             {'id': UUID1,
              'name': 'fake image #1',
@@ -136,7 +141,7 @@ class TestRegistryAPI(unittest.TestCase):
              'location': "file:///tmp/glance-tests/2",
              'properties': {}}]
         self.context = rcontext.RequestContext(is_admin=True)
-        db_api.configure_db(CONF)
+        db_api.configure_db(conf)
         self.destroy_fixtures()
         self.create_fixtures()
 
@@ -1935,7 +1940,8 @@ class TestGlanceAPI(unittest.TestCase):
         stubs.stub_out_registry_and_store_server(self.stubs)
         stubs.stub_out_filesystem_backend()
         sql_connection = os.environ.get('GLANCE_SQL_CONNECTION', "sqlite://")
-        self.api = context.ContextMiddleware(router.API(CONF), CONF)
+        conf = test_utils.TestConfigOpts(CONF)
+        self.api = context.ContextMiddleware(router.API(conf), conf)
         self.FIXTURES = [
             {'id': UUID1,
              'name': 'fake image #1',
@@ -1966,7 +1972,7 @@ class TestGlanceAPI(unittest.TestCase):
              'location': "file:///tmp/glance-tests/2",
              'properties': {}}]
         self.context = rcontext.RequestContext(is_admin=True)
-        db_api.configure_db(CONF)
+        db_api.configure_db(conf)
         self.destroy_fixtures()
         self.create_fixtures()
 

glance/tests/unit/test_clients.py

@@ -34,6 +34,7 @@ from glance.registry.db import models as db_models
 from glance.registry import client as rclient
 from glance.registry import context as rcontext
 from glance.tests import stubs
+from glance.tests import utils as test_utils
 
 CONF = {'sql_connection': 'sqlite://'}
 
@@ -138,7 +139,8 @@ class TestRegistryClient(unittest.TestCase):
         """Establish a clean test environment"""
         self.stubs = stubout.StubOutForTesting()
         stubs.stub_out_registry_and_store_server(self.stubs)
-        db_api.configure_db(CONF)
+        conf = test_utils.TestConfigOpts(CONF)
+        db_api.configure_db(conf)
         self.context = rcontext.RequestContext(is_admin=True)
         self.FIXTURES = [
             {'id': UUID1,
@@ -1138,7 +1140,8 @@ class TestClient(unittest.TestCase):
         self.stubs = stubout.StubOutForTesting()
         stubs.stub_out_registry_and_store_server(self.stubs)
         stubs.stub_out_filesystem_backend()
-        db_api.configure_db(CONF)
+        conf = test_utils.TestConfigOpts(CONF)
+        db_api.configure_db(conf)
         self.client = client.Client("0.0.0.0")
         self.FIXTURES = [
             {'id': UUID1,

glance/tests/unit/test_config.py

@@ -16,8 +16,6 @@
 #    under the License.
 
 import os.path
-import optparse
-import tempfile
 import unittest
 
 import stubout
@@ -26,125 +24,9 @@ from glance.api.middleware import version_negotiation
 from glance.api.v1 import images
 from glance.api.v1 import members
 from glance.common import config
-from glance.common import wsgi
 from glance.image_cache import pruner
 
 
-class TestOptionParsing(unittest.TestCase):
-
-    def test_common_options(self):
-        parser = optparse.OptionParser()
-        self.assertEquals(0, len(parser.option_groups))
-        config.add_common_options(parser)
-        self.assertEquals(1, len(parser.option_groups))
-
-        expected_options = ['--verbose', '--debug', '--config-file']
-        for e in expected_options:
-            self.assertTrue(parser.option_groups[0].get_option(e),
-                            "Missing required common option: %s" % e)
-
-    def test_parse_options(self):
-        # test empty args and that parse_options() returns a mapping
-        # of typed values
-        parser = optparse.OptionParser()
-        config.add_common_options(parser)
-        parsed_conf, args = config.parse_options(parser, [])
-
-        expected_conf = {'verbose': False, 'debug': False,
-                         'config_file': None}
-        self.assertEquals(expected_conf, parsed_conf)
-
-        # test non-empty args and that parse_options() returns a mapping
-        # of typed values matching supplied args
-        parser = optparse.OptionParser()
-        config.add_common_options(parser)
-        parsed_conf, args = config.parse_options(parser, ['--verbose'])
-
-        expected_conf = {'verbose': True, 'debug': False,
-                         'config_file': None}
-        self.assertEquals(expected_conf, parsed_conf)
-
-        # test non-empty args that contain unknown options raises
-        # a SystemExit exception. Not ideal, but unfortunately optparse
-        # raises a sys.exit() when it runs into an error instead of raising
-        # something a bit more useful for libraries. optparse must have been
-        # written by the same group that wrote unittest ;)
-        parser = optparse.OptionParser()
-        config.add_common_options(parser)
-        self.assertRaises(SystemExit, config.parse_options,
-                          parser, ['--unknown'])
-
-
-class TestConfigFiles(unittest.TestCase):
-
-    def setUp(self):
-        self.stubs = stubout.StubOutForTesting()
-
-    def tearDown(self):
-        self.stubs.UnsetAll()
-
-    def test_config_file_default(self):
-        expected_path = '/etc/glance/glance-api.conf'
-
-        self.stubs.Set(os.path, 'exists', lambda p: p == expected_path)
-
-        path = config.find_config_file('glance-api', {}, [])
-
-        self.assertEquals(expected_path, path)
-
-    def test_config_file_option(self):
-        expected_path = '/etc/glance/my-glance-api.conf'
-
-        self.stubs.Set(os.path, 'exists', lambda p: p == expected_path)
-
-        path = config.find_config_file('glance-api',
-                                       {'config_file': expected_path}, [])
-
-        self.assertEquals(expected_path, path)
-
-    def test_config_file_arg(self):
-        expected_path = '/etc/glance/my-glance-api.conf'
-
-        self.stubs.Set(os.path, 'exists', lambda p: p == expected_path)
-
-        path = config.find_config_file('glance-api', {}, [expected_path])
-
-        self.assertEquals(expected_path, path)
-
-    def test_config_file_tilde_arg(self):
-        supplied_path = '~/my-glance-api.conf'
-        expected_path = '/tmp/my-glance-api.conf'
-
-        def fake_expanduser(p):
-            if p[0] == '~':
-                p = '/tmp' + p[1:]
-            return p
-
-        self.stubs.Set(os.path, 'expanduser', fake_expanduser)
-        self.stubs.Set(os.path, 'exists', lambda p: p == supplied_path)
-
-        path = config.find_config_file('glance-api', {}, [supplied_path])
-
-        self.assertEquals(expected_path, path)
-
-    def test_config_file_not_found(self):
-        self.stubs.Set(os.path, 'exists', lambda p: False)
-
-        self.assertRaises(RuntimeError,
-                          config.find_config_file,
-                          'glance-foo', {}, [])
-
-
-class TestPasteConfig(unittest.TestCase):
-
-    def test_load_paste_config(self):
-        path = os.path.join(os.getcwd(), 'etc/glance-api.conf')
-
-        conf = config.load_paste_config(path, 'glance-api')
-
-        self.assertEquals('file', conf['default_store'])
-
-
 class TestPasteApp(unittest.TestCase):
 
     def setUp(self):
@@ -154,15 +36,16 @@ class TestPasteApp(unittest.TestCase):
         self.stubs.UnsetAll()
 
     def test_load_paste_app(self):
-        path = os.path.join(os.getcwd(), 'etc/glance-api.conf')
+        conf = config.GlanceConfigOpts()
+        conf(['--config-file',
+              os.path.join(os.getcwd(), 'etc/glance-api.conf')])
 
         self.stubs.Set(config, 'setup_logging', lambda *a: None)
         self.stubs.Set(images, 'create_resource', lambda *a: None)
         self.stubs.Set(members, 'create_resource', lambda *a: None)
 
-        conf, app = config.load_paste_app('glance-api', {}, [path])
+        app = config.load_paste_app(conf, 'glance-api')
 
-        self.assertEquals('file', conf['default_store'])
         self.assertEquals(version_negotiation.VersionNegotiationFilter,
                           type(app))
 
@@ -178,11 +61,12 @@ class TestPasteApp(unittest.TestCase):
         orig_join = os.path.join
         self.stubs.Set(os.path, 'join', fake_join)
 
+        conf = config.GlanceCacheConfigOpts()
+        conf([])
+
         self.stubs.Set(config, 'setup_logging', lambda *a: None)
-        self.stubs.Set(wsgi, 'app_factory', lambda *a, **kw: 'pruner')
+        self.stubs.Set(pruner, 'Pruner', lambda conf, **lc: 'pruner')
 
-        conf, app = config.load_paste_app('glance-pruner', {}, [],
+        app = config.load_paste_app(conf, 'glance-pruner')
-                                          'glance-cache')
 
-        self.assertEquals('86400', conf['image_cache_stall_time'])
         self.assertEquals('pruner', app)

glance/tests/unit/test_filesystem_store.py

@@ -28,6 +28,7 @@ from glance.common import utils
 from glance.store.location import get_location_from_uri
 from glance.store.filesystem import Store, ChunkedFile
 from glance.tests import stubs
+from glance.tests import utils as test_utils
 
 FILESYSTEM_CONF = {
     'verbose': True,
@@ -43,7 +44,7 @@ class TestStore(unittest.TestCase):
         stubs.stub_out_filesystem_backend()
         self.orig_chunksize = ChunkedFile.CHUNKSIZE
         ChunkedFile.CHUNKSIZE = 10
-        self.store = Store(FILESYSTEM_CONF)
+        self.store = Store(test_utils.TestConfigOpts(FILESYSTEM_CONF))
 
     def tearDown(self):
         """Clear the test environment"""

glance/tests/unit/test_http_store.py

@@ -24,6 +24,7 @@ from glance.common import exception
 from glance.store import create_stores, delete_from_backend
 from glance.store.http import Store
 from glance.store.location import get_location_from_uri
+from glance.tests import utils
 
 
 def stub_out_http_backend(stubs):
@@ -104,6 +105,6 @@ class TestHttpStore(unittest.TestCase):
         loc = get_location_from_uri(uri)
         self.assertRaises(NotImplementedError, self.store.delete, loc)
 
-        create_stores({})
+        create_stores(utils.TestConfigOpts({}))
         self.assertRaises(exception.StoreDeleteNotSupported,
                           delete_from_backend, uri)

glance/tests/unit/test_image_cache.py

@@ -26,6 +26,7 @@ import stubout
 from glance import image_cache
 from glance.common import exception
 from glance.common import utils
+from glance.tests import utils as test_utils
 from glance.tests.utils import skip_if_disabled, xattr_writes_supported
 
 FIXTURE_DATA = '*' * 1024
@@ -136,8 +137,7 @@ class ImageCacheTestCase(object):
 
         self.assertTrue(os.path.exists(incomplete_file_path))
 
-        self.cache.conf['image_cache_stall_time'] = 0
+        self.cache.clean(stall_time=0)
-        self.cache.clean()
 
         self.assertFalse(os.path.exists(incomplete_file_path))
 
@@ -250,11 +250,12 @@ class TestImageCacheXattr(unittest.TestCase,
 
         self.inited = True
         self.disabled = False
-        self.conf = {'image_cache_dir': self.cache_dir,
+        self.conf = test_utils.TestConfigOpts({
-                     'image_cache_driver': 'xattr',
+                'image_cache_dir': self.cache_dir,
-                     'image_cache_max_size': 1024 * 5,
+                'image_cache_driver': 'xattr',
-                     'registry_host': '0.0.0.0',
+                'image_cache_max_size': 1024 * 5,
-                     'registry_port': 9191}
+                'registry_host': '0.0.0.0',
+                'registry_port': 9191})
         self.cache = image_cache.ImageCache(self.conf)
 
         if not xattr_writes_supported(self.cache_dir):
@@ -294,11 +295,12 @@ class TestImageCacheSqlite(unittest.TestCase,
         self.disabled = False
         self.cache_dir = os.path.join("/", "tmp", "test.cache.%d" %
                                       random.randint(0, 1000000))
-        self.conf = {'image_cache_dir': self.cache_dir,
+        self.conf = test_utils.TestConfigOpts({
-                     'image_cache_driver': 'sqlite',
+                'image_cache_dir': self.cache_dir,
-                     'image_cache_max_size': 1024 * 5,
+                'image_cache_driver': 'sqlite',
-                     'registry_host': '0.0.0.0',
+                'image_cache_max_size': 1024 * 5,
-                     'registry_port': 9191}
+                'registry_host': '0.0.0.0',
+                'registry_port': 9191})
         self.cache = image_cache.ImageCache(self.conf)
 
     def tearDown(self):

glance/tests/unit/test_migrations.py

@@ -34,9 +34,10 @@ from migrate.versioning.repository import Repository
 from sqlalchemy import *
 from sqlalchemy.pool import NullPool
 
+from glance.common import cfg
 from glance.common import exception
 import glance.registry.db.migration as migration_api
-from glance.tests.utils import execute
+from glance.tests import utils
 
 
 class TestMigrations(unittest.TestCase):
@@ -115,7 +116,7 @@ class TestMigrations(unittest.TestCase):
                        "create database %(database)s;") % locals()
                 cmd = ("mysql -u%(user)s %(password)s -h%(host)s "
                        "-e\"%(sql)s\"") % locals()
-                exitcode, out, err = execute(cmd)
+                exitcode, out, err = utils.execute(cmd)
                 self.assertEqual(0, exitcode)
 
     def test_walk_versions(self):
@@ -124,7 +125,9 @@ class TestMigrations(unittest.TestCase):
         that there are no errors in the version scripts for each engine
         """
         for key, engine in self.engines.items():
-            conf = {'sql_connection': TestMigrations.TEST_DATABASES[key]}
+            conf = utils.TestConfigOpts({
+                    'sql_connection': TestMigrations.TEST_DATABASES[key]})
+            conf.register_opt(cfg.StrOpt('sql_connection'))
             self._walk_versions(conf)
 
     def _walk_versions(self, conf):
@@ -165,7 +168,9 @@ class TestMigrations(unittest.TestCase):
         the image_properties table back into the base image table.
         """
         for key, engine in self.engines.items():
-            conf = {'sql_connection': TestMigrations.TEST_DATABASES[key]}
+            conf = utils.TestConfigOpts({
+                    'sql_connection': TestMigrations.TEST_DATABASES[key]})
+            conf.register_opt(cfg.StrOpt('sql_connection'))
             self._no_data_loss_2_to_3_to_2(engine, conf)
 
     def _no_data_loss_2_to_3_to_2(self, engine, conf):

glance/tests/unit/test_misc.py

@@ -111,9 +111,9 @@ class UtilsTestCase(unittest.TestCase):
 
         # Try importing an object by supplying a class and
         # verify the object's class name is the same as that supplied
-        store_obj = utils.import_object('glance.store.s3.Store')
+        ex_obj = utils.import_object('glance.common.exception.GlanceException')
 
-        self.assertTrue(store_obj.__class__.__name__ == 'Store')
+        self.assertTrue(ex_obj.__class__.__name__ == 'GlanceException')
 
         # Try importing a module itself
         module_obj = utils.import_object('glance.registry')

glance/tests/unit/test_notifier.py

@@ -20,13 +20,14 @@ import unittest
 
 from glance.common import exception
 from glance.common import notifier
+from glance.tests import utils
 
 
 class TestInvalidNotifier(unittest.TestCase):
     """Test that notifications are generated appropriately"""
 
     def test_cannot_create(self):
-        conf = {"notifier_strategy": "invalid_notifier"}
+        conf = utils.TestConfigOpts({"notifier_strategy": "invalid_notifier"})
         self.assertRaises(exception.InvalidNotifierStrategy,
                           notifier.Notifier,
                           conf)
@@ -36,7 +37,7 @@ class TestLoggingNotifier(unittest.TestCase):
     """Test the logging notifier is selected and works properly."""
 
     def setUp(self):
-        conf = {"notifier_strategy": "logging"}
+        conf = utils.TestConfigOpts({"notifier_strategy": "logging"})
         self.called = False
         self.logger = logging.getLogger("glance.notifier.logging_notifier")
         self.notifier = notifier.Notifier(conf)
@@ -67,7 +68,7 @@ class TestNoopNotifier(unittest.TestCase):
     """Test that the noop notifier works...and does nothing?"""
 
     def setUp(self):
-        conf = {"notifier_strategy": "noop"}
+        conf = utils.TestConfigOpts({"notifier_strategy": "noop"})
         self.notifier = notifier.Notifier(conf)
 
     def test_warn(self):
@@ -86,7 +87,7 @@ class TestRabbitNotifier(unittest.TestCase):
     def setUp(self):
         notifier.RabbitStrategy._send_message = self._send_message
         self.called = False
-        conf = {"notifier_strategy": "rabbit"}
+        conf = utils.TestConfigOpts({"notifier_strategy": "rabbit"})
         self.notifier = notifier.Notifier(conf)
 
     def _send_message(self, message, priority):

glance/tests/unit/test_s3_store.py

@@ -32,6 +32,7 @@ from glance.common import utils
 from glance.store import BackendException, UnsupportedBackend
 from glance.store.location import get_location_from_uri
 from glance.store.s3 import Store
+from glance.tests import utils as test_utils
 
 
 FAKE_UUID = utils.generate_uuid()
@@ -163,7 +164,7 @@ class TestStore(unittest.TestCase):
         """Establish a clean test environment"""
         self.stubs = stubout.StubOutForTesting()
         stub_out_s3(self.stubs)
-        self.store = Store(S3_CONF)
+        self.store = Store(test_utils.TestConfigOpts(S3_CONF))
 
     def tearDown(self):
         """Clear the test environment"""
@@ -260,7 +261,7 @@ class TestStore(unittest.TestCase):
                 expected_image_id)
             image_s3 = StringIO.StringIO(expected_s3_contents)
 
-            self.store = Store(new_conf)
+            self.store = Store(test_utils.TestConfigOpts(new_conf))
             location, size, checksum = self.store.add(expected_image_id,
                                                       image_s3,
                                                       expected_s3_size)
@@ -292,7 +293,7 @@ class TestStore(unittest.TestCase):
         del conf[key]
 
         try:
-            self.store = Store(conf)
+            self.store = Store(test_utils.TestConfigOpts(conf))
             return self.store.add == self.store.add_disabled
         except:
             return False

glance/tests/unit/test_store_location.py

@@ -24,8 +24,9 @@ import glance.store.http
 import glance.store.filesystem
 import glance.store.swift
 import glance.store.s3
+from glance.tests import utils
 
-glance.store.create_stores({})
+glance.store.create_stores(utils.TestConfigOpts({}))
 
 
 class TestStoreLocation(unittest.TestCase):

glance/tests/unit/test_swift_store.py

@@ -30,6 +30,7 @@ from glance.common import utils
 from glance.store import BackendException
 import glance.store.swift
 from glance.store.location import get_location_from_uri
+from glance.tests import utils as test_utils
 
 
 FAKE_UUID = utils.generate_uuid
@@ -182,7 +183,7 @@ class TestStore(unittest.TestCase):
         """Establish a clean test environment"""
         self.stubs = stubout.StubOutForTesting()
         stub_out_swift_common_client(self.stubs)
-        self.store = Store(SWIFT_CONF)
+        self.store = Store(test_utils.TestConfigOpts(SWIFT_CONF))
 
     def tearDown(self):
         """Clear the test environment"""
@@ -293,7 +294,7 @@ class TestStore(unittest.TestCase):
 
             image_swift = StringIO.StringIO(expected_swift_contents)
 
-            self.store = Store(new_conf)
+            self.store = Store(test_utils.TestConfigOpts(new_conf))
             location, size, checksum = self.store.add(image_id, image_swift,
                                                       expected_swift_size)
 
@@ -318,7 +319,7 @@ class TestStore(unittest.TestCase):
         conf['swift_store_create_container_on_put'] = 'False'
         conf['swift_store_container'] = 'noexist'
         image_swift = StringIO.StringIO("nevergonnamakeit")
-        self.store = Store(conf)
+        self.store = Store(test_utils.TestConfigOpts(conf))
 
         # We check the exception text to ensure the container
         # missing text is found in it, otherwise, we would have
@@ -348,7 +349,7 @@ class TestStore(unittest.TestCase):
                             '/noexist/%s' % expected_image_id
         image_swift = StringIO.StringIO(expected_swift_contents)
 
-        self.store = Store(conf)
+        self.store = Store(test_utils.TestConfigOpts(conf))
         location, size, checksum = self.store.add(expected_image_id,
                                                   image_swift,
                                                   expected_swift_size)
@@ -387,7 +388,7 @@ class TestStore(unittest.TestCase):
         try:
             glance.store.swift.DEFAULT_LARGE_OBJECT_SIZE = 1024
             glance.store.swift.DEFAULT_LARGE_OBJECT_CHUNK_SIZE = 1024
-            self.store = Store(conf)
+            self.store = Store(test_utils.TestConfigOpts(conf))
             location, size, checksum = self.store.add(expected_image_id,
                                                       image_swift,
                                                       expected_swift_size)
@@ -440,7 +441,7 @@ class TestStore(unittest.TestCase):
             MAX_SWIFT_OBJECT_SIZE = 1024
             glance.store.swift.DEFAULT_LARGE_OBJECT_SIZE = 1024
             glance.store.swift.DEFAULT_LARGE_OBJECT_CHUNK_SIZE = 1024
-            self.store = Store(conf)
+            self.store = Store(test_utils.TestConfigOpts(conf))
             location, size, checksum = self.store.add(expected_image_id,
                                                       image_swift, 0)
         finally:
@@ -475,7 +476,7 @@ class TestStore(unittest.TestCase):
         del conf[key]
 
         try:
-            self.store = Store(conf)
+            self.store = Store(test_utils.TestConfigOpts(conf))
             return self.store.add == self.store.add_disabled
         except:
             return False

glance/tests/unit/test_versions.py

@@ -22,9 +22,11 @@ import stubout
 import webob
 
 from glance import client
+from glance.common import config
 from glance.common import exception
 from glance.api import versions
 from glance.tests import stubs
+from glance.tests import utils
 
 
 class VersionsTest(unittest.TestCase):
@@ -46,8 +48,10 @@ class VersionsTest(unittest.TestCase):
     def test_get_version_list(self):
         req = webob.Request.blank('/')
         req.accept = "application/json"
-        conf = {'bind_host': '0.0.0.0',
+        conf = utils.TestConfigOpts({
-                'bind_port': 9292}
+                'bind_host': '0.0.0.0',
+                'bind_port': 9292
+                })
         res = req.get_response(versions.Controller(conf))
         self.assertEqual(res.status_int, 300)
         self.assertEqual(res.content_type, "application/json")

glance/tests/utils.py

@@ -22,9 +22,44 @@ import functools
 import os
 import socket
 import subprocess
+import tempfile
 
 import nose.plugins.skip
 
+from glance.common import config
+
+
+class TestConfigOpts(config.GlanceConfigOpts):
+
+    def __init__(self, test_values):
+        super(TestConfigOpts, self).__init__()
+        self._test_values = test_values
+        self()
+
+    def __call__(self):
+        config_file = self._write_tmp_config_file()
+        try:
+            super(TestConfigOpts, self).\
+                __call__(['--config-file', config_file])
+        finally:
+            os.remove(config_file)
+
+    def _write_tmp_config_file(self):
+        contents = '[DEFAULT]\n'
+        for key, value in self._test_values.items():
+            contents += '%s = %s\n' % (key, value)
+
+        (fd, path) = tempfile.mkstemp(prefix='testcfg')
+        try:
+            os.write(fd, contents)
+        except Exception, e:
+            os.close(fd)
+            os.remove(path)
+            raise e
+
+        os.close(fd)
+        return path
+
 
 class skip_test(object):
     """Decorator that skips a test."""