README.md

HVAC service example

The HVAC service is a service dummy allowing to control the state of the A/C and the desired cabin temperature. "Dummy" means, that changes of those two states are just forwarded and reflected as two respective data points in the data broker.

                      +----------------+
                      |                |
         ----( O------|  Data broker   |-----O )------ 
         |    Broker  |                |  Collector  |
         |            +----------------+             |
         |                                           |
         |                                           |
+-----------------+                         +----------------+
|                 |                         |                |
|   HVAC client   |-----------( O-----------|  HVAC service  |
|                 |            HVAC         |                |
+-----------------+           service       +----------------+

Configuration

parameter	default value	Env var	description
listen_address	"127.0.0.1:50052"	HVAC_ADDR	Listen for rpc calls
broker_address	"127.0.0.1:55555"	"127.0.0.1:$DAPR_GRPC_PORT" (if DAPR_GRPC_PORT is set) VDB_ADDRESS (else)	Connect to data broker instance
broker_app_id	"vehicledatabroker"	VEHICLEDATABROKER_DAPR_APP_ID	Connect to data broker instance

Configuration options have the following priority (highest at top):

1. environment variable
2. default value