Adds liveness probe for jmx container, long interval ...

because it does a full metrics run regarless of URL path
(so /liveness is there in case we'd want special treatment later)

Author: solsson

50kafka.yml

@@ -70,6 +70,11 @@ spec:
         - /etc/kafka/jmx-kafka-prometheus.yml
         ports:
         - containerPort: 5556
+        livenessProbe:
+          httpGet:
+            path: /liveness
+            port: 5556
+          periodSeconds: 60
         resources:
           requests:
             cpu: 0m