(refactor)kafka: add additonal env vars (#58)

Signed-off-by: ksatchit <ksatchit@mayadata.io>

charts/kafka/kafka-broker-disk-failure/experiment.yaml

@@ -44,6 +44,9 @@ spec:
     - name: KAFKA_LIVENESS_STREAM
       value: 'enabled'
 
+    - name: KAFKA_CONSUMER_TIMEOUT
+      value: '30000'
+
     - name: TOTAL_CHAOS_DURATION
       value: '15'
 
@@ -68,7 +71,7 @@ spec:
     - name: KAFKA_BROKER
       value: ''
 
-    - name: KAFKA_INSTANCE
+    - name: KAFKA_INSTANCE_NAME
       value: ''
 
     - name: KAFKA_REPLICATION_FACTOR
@@ -96,4 +99,4 @@ spec:
     secrets:
     - name: kafka-broker-disk-failure
       mountPath: /tmp/
-      
+