Configure JMX for remote access (#282)

Author: philipp94831

charts/streams-app/README.md

@@ -79,9 +79,11 @@ Alternatively, a YAML file that specifies the values for the parameters can be p
 
 ### JMX Configuration
 
-| Parameter  | Description                                       | Default |
-|------------|---------------------------------------------------|---------|
-| `jmx.port` | The jmx port which JMX style metrics are exposed. | `5555`  |
+| Parameter     | Description                                                             | Default     |
+|---------------|-------------------------------------------------------------------------|-------------|
+| `jmx.enabled` | Whether or not to open JMX port for remote access (e.g., for debugging) | `false`     |
+| `jmx.port`    | The JMX port which JMX style metrics are exposed.                       | `5555`      |
+| `jmx.host`    | The host to use for JMX remote access.                                  | `localhost` |
 
 ### Prometheus JMX Exporter Configuration
 

charts/streams-app/templates/deployment.yaml

@@ -174,6 +174,10 @@ spec:
               value: '-Dcom.sun.management.jmxremote.port={{ .Values.jmx.port }}
                 -Dcom.sun.management.jmxremote.authenticate=false
                 -Dcom.sun.management.jmxremote.ssl=false
+                {{- if .Values.jmx.enabled }}
+                -Djava.rmi.server.hostname={{ .Values.jmx.host }}
+                -Dcom.sun.management.jmxremote.rmi.port={{ .Values.jmx.port }}
+                {{- end }}
                 -XX:MaxRAMPercentage={{ printf "%.1f" .Values.javaOptions.maxRAMPercentage }}
                 {{ .Values.javaOptions.others | join " " }}'
         {{- if or (.Values.files) (and .Values.persistence.enabled .Values.statefulSet) (.Values.secretFilesRefs) }}
@@ -207,7 +211,7 @@ spec:
               protocol: {{ .protocol | quote }}
               {{- end }}
             {{- end }}
-            {{- if .Values.prometheus.jmx.enabled }}
+            {{- if .Values.jmx.enabled }}
             - containerPort: {{ .Values.jmx.port }}
               name: jmx
             {{- end }}

charts/streams-app/values.yaml

@@ -92,7 +92,9 @@ readinessProbe: {}
 ## Kafka Connect JMX Settings
 ## ref: https://kafka.apache.org/documentation/#connect_monitoring
 jmx:
+  enabled: false
   port: 5555
+  host: localhost
 
 autoscaling:
   enabled: false