Added type to Prometheus JMX exporter

Otherwise metrics show up as `untyped`
Also added `kafka.producer` metrics since this is not going to be used with a `kafka.connect` container

debezium-server-dist/src/main/resources/distro/conf/metrics.yml

@@ -3,21 +3,42 @@ ssl: false
 lowercaseOutputName: false
 lowercaseOutputLabelNames: false
 rules:
-- pattern : "kafka.connect<type=connect-worker-metrics>([^:]+):"
+- pattern: "kafka.producer<type=producer-metrics, client-id=([^>]+)><>([^:]+)"
+  name: "kafka_producer_metrics_$2"
+  type: GAUGE
+  labels:
+    client: "$1"
+- pattern: "kafka.producer<type=producer-node-metrics, client-id=([^>]+), node-id=([^>]+)><>([^:]+)"
+  name: "kafka_producer_node_metrics_$3"
+  type: GAUGE
+  labels:
+    client: "$1"
+    node: "$2"
+- pattern: "kafka.producer<type=producer-node-metrics, client-id=([^>]+), topic=([^>]+)><>([^:]+)"
+  name: "kafka_producer_node_metrics_$3"
+  type: GAUGE
+  labels:
+    client: "$1"
+    topic: "$2"
+- pattern: "kafka.connect<type=connect-worker-metrics>([^:]+):"
   name: "kafka_connect_worker_metrics_$1"
-- pattern : "kafka.connect<type=connect-metrics, client-id=([^:]+)><>([^:]+)"
+  type: GAUGE
+- pattern: "kafka.connect<type=connect-metrics, client-id=([^:]+)><>([^:]+)"
   name: "kafka_connect_metrics_$2"
+  type: GAUGE
   labels:
     client: "$1"
 - pattern: "debezium.([^:]+)<type=connector-metrics, context=([^,]+), server=([^,]+), key=([^>]+)><>RowsScanned"
   name: "debezium_metrics_RowsScanned"
+  type: GAUGE
   labels:
     plugin: "$1"
     name: "$3"
     context: "$2"
     table: "$4"
 - pattern: "debezium.([^:]+)<type=connector-metrics, server=([^,]+), task=([^,]+), context=([^,]+), database=([^>]+)>([^:]+)"
   name: "debezium_metrics_$6"
+  type: GAUGE
   labels:
     plugin: "$1"
     name: "$2"
@@ -26,13 +47,15 @@ rules:
     database: "$5"
 - pattern: "debezium.([^:]+)<type=connector-metrics, server=([^,]+), task=([^,]+), context=([^>]+)>([^:]+)"
   name: "debezium_metrics_$5"
+  type: GAUGE
   labels:
     plugin: "$1"
     name: "$2"
     task: "$3"
     context: "$4"
 - pattern: "debezium.([^:]+)<type=connector-metrics, context=([^,]+), server=([^>]+)>([^:]+)"
   name: "debezium_metrics_$4"
+  type: GAUGE
   labels:
     plugin: "$1"
     name: "$3"