Moves outside host details to annotations,

as DNS names may exceed the 63 char limit on label values
and they're not too useful for pod matching in services etc.

kafka/10broker-config.yml

@@ -12,6 +12,7 @@ data:
     sed -i "s/#init#broker.id=#init#/broker.id=$KAFKA_BROKER_ID/" /etc/kafka/server.properties
 
     LABELS="kafka-broker-id=$KAFKA_BROKER_ID"
+    ANNOTATIONS=""
 
     hash kubectl 2>/dev/null || {
       sed -i "s/#init#broker.rack=#init#/#init#broker.rack=# kubectl not found in path/" /etc/kafka/server.properties
@@ -32,12 +33,15 @@ data:
       else
         OUTSIDE_PORT=3240${KAFKA_BROKER_ID}
         sed -i "s|#init#advertised.listeners=OUTSIDE://#init#|advertised.listeners=OUTSIDE://${OUTSIDE_HOST}:${OUTSIDE_PORT}|" /etc/kafka/server.properties
-        LABELS="$LABELS kafka-listener-outside-host=$OUTSIDE_HOST kafka-listener-outside-port=$OUTSIDE_PORT"
+        ANNOTATIONS="$ANNOTATIONS kafka-listener-outside-host=$OUTSIDE_HOST kafka-listener-outside-port=$OUTSIDE_PORT"
       fi
 
       if [ ! -z "$LABELS" ]; then
         kubectl -n $POD_NAMESPACE label pod $POD_NAME $LABELS || echo "Failed to label $POD_NAMESPACE.$POD_NAME - RBAC issue?"
       fi
+      if [ ! -z "$ANNOTATIONS" ]; then
+        kubectl -n $POD_NAMESPACE annotate pod $POD_NAME $ANNOTATIONS || echo "Failed to annotate $POD_NAMESPACE.$POD_NAME - RBAC issue?"
+      fi
     }
 
   server.properties: |-