Description of API configuration options

Configuration option = Default value	Description
[DEFAULT]
api_paste_config = api_paste.ini	(StrOpt) Configuration file for WSGI definition of API.
pipeline_cfg_file = pipeline.yaml	(StrOpt) Configuration file for pipeline definition.
policy_default_rule = default	(StrOpt) Default rule. Enforced when a requested rule is not found.
policy_file = policy.json	(StrOpt) The JSON file that defines policies.
reserved_metadata_length = 256	(IntOpt) Limit on length of reserved metadata values.
reserved_metadata_namespace = metering.	(ListOpt) List of metadata prefixes reserved for metering use.
[api]
enable_reverse_dns_lookup = False	(BoolOpt) Set it to False if your environment does not need or have dns server, otherwise it will delay the response from api.
host = 0.0.0.0	(StrOpt) The listen IP for the ceilometer API server.
port = 8777	(IntOpt) The port for the ceilometer API server.