Adding oslo.config entry points for yaql and cache opts

To assist with automated configuration validation, we need entry points
for oslo.config.opts for yaql and cache options.

Change-Id: I228282d2c05f6583fe972470b326e7182f635b39

config-generator.conf

@@ -1,16 +1,19 @@
 [DEFAULT]
 output_file = etc/heat/heat.conf.sample
 wrap_width = 79
+namespace = heat.common.cache
 namespace = heat.common.config
 namespace = heat.common.context
 namespace = heat.common.crypt
 namespace = heat.engine.clients.os.keystone.heat_keystoneclient
+namespace = heat.engine.hot.functions
 namespace = heat.common.wsgi
 namespace = heat.engine.clients
 namespace = heat.engine.notification
 namespace = heat.engine.resources
 namespace = heat.api.aws.ec2token
 namespace = keystonemiddleware.auth_token
+namespace = oslo.cache
 namespace = oslo.messaging
 namespace = oslo.middleware
 namespace = oslo.cache

heat/common/cache.py

@@ -21,22 +21,8 @@ from oslo_config import cfg
 
 from heat.common.i18n import _
 
-
-def register_cache_configurations(conf):
-    """Register all configurations required for oslo.cache.
-
-    The procedure registers all configurations required for oslo.cache.
-    It should be called before configuring of cache region
-
-    :param conf: instance of heat configuration
-    :returns: updated heat configuration
-    """
-    # register global configurations for caching in heat
-    core.configure(conf)
-
-    # register heat specific configurations
-    constraint_cache_group = cfg.OptGroup('constraint_validation_cache')
-    constraint_cache_opts = [
+constraint_cache_group = cfg.OptGroup('constraint_validation_cache')
+constraint_cache_opts = [
     cfg.IntOpt('expiration_time', default=60,
                help=_(
                    'TTL, in seconds, for any cached item in the '
@@ -51,12 +37,10 @@ def register_cache_configurations(conf):
                     'OpenStack services. Please note that the global '
                     'toggle for oslo.cache(enabled=True in [cache] group) '
                     'must be enabled to use this feature.'))
-    ]
-    conf.register_group(constraint_cache_group)
-    conf.register_opts(constraint_cache_opts, group=constraint_cache_group)
+]
 
-    extension_cache_group = cfg.OptGroup('service_extension_cache')
-    extension_cache_opts = [
+extension_cache_group = cfg.OptGroup('service_extension_cache')
+extension_cache_opts = [
     cfg.IntOpt('expiration_time', default=3600,
                help=_(
                    'TTL, in seconds, for any cached item in the '
@@ -69,12 +53,10 @@ def register_cache_configurations(conf):
                     'services. Please note that the global toggle for '
                     'oslo.cache(enabled=True in [cache] group) must be '
                     'enabled to use this feature.'))
-    ]
-    conf.register_group(extension_cache_group)
-    conf.register_opts(extension_cache_opts, group=extension_cache_group)
+]
 
-    find_cache_group = cfg.OptGroup('resource_finder_cache')
-    find_cache_opts = [
+find_cache_group = cfg.OptGroup('resource_finder_cache')
+find_cache_opts = [
     cfg.IntOpt('expiration_time', default=3600,
                help=_(
                    'TTL, in seconds, for any cached item in the '
@@ -87,13 +69,40 @@ def register_cache_configurations(conf):
                     'using name or id. Please note that the global '
                     'toggle for oslo.cache(enabled=True in [cache] group) '
                     'must be enabled to use this feature.'))
-    ]
+]
+
+
+def register_cache_configurations(conf):
+    """Register all configurations required for oslo.cache.
+
+    The procedure registers all configurations required for oslo.cache.
+    It should be called before configuring of cache region
+
+    :param conf: instance of heat configuration
+    :returns: updated heat configuration
+    """
+    # register global configurations for caching in heat
+    core.configure(conf)
+
+    # register heat specific configurations
+    conf.register_group(constraint_cache_group)
+    conf.register_opts(constraint_cache_opts, group=constraint_cache_group)
+
+    conf.register_group(extension_cache_group)
+    conf.register_opts(extension_cache_opts, group=extension_cache_group)
+
     conf.register_group(find_cache_group)
     conf.register_opts(find_cache_opts, group=find_cache_group)
 
     return conf
 
 
+def list_opts():
+    yield constraint_cache_group.name, constraint_cache_opts
+    yield extension_cache_group.name, extension_cache_opts
+    yield find_cache_group.name, find_cache_opts
+
+
 # variable that stores an initialized cache region for heat
 _REGION = None
 

heat/engine/hot/functions.py

@@ -31,7 +31,8 @@ from heat.engine import function
 
 LOG = logging.getLogger(__name__)
 
-opts = [
+yaql_group = cfg.OptGroup('yaql')
+yaql_opts = [
     cfg.IntOpt('limit_iterators',
                default=200,
                help=_('The maximum number of elements in collection '
@@ -41,7 +42,11 @@ opts = [
                help=_('The maximum size of memory in bytes that '
                       'expression can take for its evaluation.'))
 ]
-cfg.CONF.register_opts(opts, group='yaql')
+cfg.CONF.register_opts(yaql_opts, group=yaql_group)
+
+
+def list_opts():
+    yield yaql_group.name, yaql_opts
 
 
 class GetParam(function.Function):

setup.cfg

@@ -49,10 +49,12 @@ wsgi_scripts =
     heat-wsgi-api-cfn = heat.httpd.heat_api_cfn:init_application
 
 oslo.config.opts =
+    heat.common.cache = heat.common.cache:list_opts
     heat.common.config = heat.common.config:list_opts
     heat.common.context = heat.common.context:list_opts
     heat.common.crypt = heat.common.crypt:list_opts
     heat.engine.clients.os.keystone.heat_keystoneclient = heat.engine.clients.os.keystone.heat_keystoneclient:list_opts
+    heat.engine.hot.functions = heat.engine.hot.functions:list_opts
     heat.common.wsgi = heat.common.wsgi:list_opts
     heat.engine.clients = heat.engine.clients:list_opts
     heat.engine.notification = heat.engine.notification:list_opts