map_merge:
- get_attr: [CeilometerServiceBase, role_data, config_settings]
- ceilometer::agent::compute::instance_discovery_method: {get_param: InstanceDiscoveryMethod}
map_merge:
- get_attr: [CeilometerServiceBase, role_data, config_settings]
- ceilometer::agent::compute::instance_discovery_method: {get_param: InstanceDiscoveryMethod}