Changes to resolve Kafka server error

- KFK_SERVER_ADDRESS_TEMPLATE now defined inside the class KafkaConfig.
- variable renamed to "SERVER_ADDRESS" from "server_address"

src/common/tools/kafka/Variables.py

@@ -20,14 +20,14 @@ from common.Settings import get_setting
 
 
 LOGGER = logging.getLogger(__name__)
-KFK_SERVER_ADDRESS_TEMPLATE = 'kafka-service.{:s}.svc.cluster.local:{:s}'
 
 class KafkaConfig(Enum):
-    KFK_NAMESPACE = get_setting('KFK_NAMESPACE')
-    KFK_PORT      = get_setting('KFK_SERVER_PORT')
-    # SERVER_IP    = "127.0.0.1:9092"
-    server_address = KFK_SERVER_ADDRESS_TEMPLATE.format(KFK_NAMESPACE, KFK_PORT)
-    ADMIN_CLIENT =  AdminClient({'bootstrap.servers': server_address})
+    KFK_SERVER_ADDRESS_TEMPLATE = 'kafka-service.{:s}.svc.cluster.local:{:s}'
+    KFK_NAMESPACE  = get_setting('KFK_NAMESPACE')
+    KFK_PORT       = get_setting('KFK_SERVER_PORT')
+    # SERVER_ADDRESS    = "127.0.0.1:9092"
+    SERVER_ADDRESS =  KFK_SERVER_ADDRESS_TEMPLATE.format(KFK_NAMESPACE, KFK_PORT)
+    ADMIN_CLIENT   =  AdminClient({'bootstrap.servers': SERVER_ADDRESS })
 
 class KafkaTopic(Enum):
     REQUEST  = 'topic_request' 
@@ -42,6 +42,7 @@ class KafkaTopic(Enum):
             Method to create Kafka topics defined as class members
         """
         all_topics = [member.value for member in KafkaTopic]
+        LOGGER.debug("Kafka server address is: {:} ".format(KafkaConfig.SERVER_ADDRESS.value))
         if( KafkaTopic.create_new_topic_if_not_exists( all_topics )):
             LOGGER.debug("All topics are created sucsessfully")
             return True

src/kpi_value_api/service/KpiValueApiServiceServicerImpl.py

@@ -38,7 +38,7 @@ class KpiValueApiServiceServicerImpl(KpiValueAPIServiceServicer):
                        ) -> Empty:
         LOGGER.debug('StoreKpiValues: Received gRPC message object: {:}'.format(request))
         producer_obj = KafkaProducer({
-            'bootstrap.servers' : KafkaConfig.SERVER_IP.value    
+            'bootstrap.servers' : KafkaConfig.SERVER_ADDRESS.value    
         })
         for kpi_value in request.kpi_value_list:
             kpi_value_to_produce : Tuple [str, Any, Any] = (

src/kpi_value_writer/service/KpiValueWriter.py

@@ -51,10 +51,10 @@ class KpiValueWriter(GenericGrpcService):
         metric_writer      = MetricWriterToPrometheus()
 
         kafka_consumer  = KafkaConsumer(
-            { 'bootstrap.servers' : KafkaConfig.SERVER_IP.value,
+            { 'bootstrap.servers' : KafkaConfig.SERVER_ADDRESS.value,
               'group.id'          : __class__,
               'auto.offset.reset' : 'latest'}
-        )      
+        )
         kafka_consumer.subscribe([KafkaTopic.VALUE.value])
         LOGGER.debug("Kafka Consumer start listenng on topic: {:}".format(KafkaTopic.VALUE.value))
         print("Kafka Consumer start listenng on topic: {:}".format(KafkaTopic.VALUE.value))