Add dynamic application.server config to streams app chart

charts/streams-app/README.md

@@ -123,8 +123,8 @@ Alternatively, a YAML file that specifies the values for the parameters can be p
 
 ### Service
 
-| Parameter         | Description                                                                                    | Default     |
-| ----------------- | ---------------------------------------------------------------------------------------------- | ----------- |
-| `service.enabled` | Whether to create a service. This requires the definition of at least one `ports.servicePort`. | `false`     |
-| `service.labels`  | Additional service labels.                                                                     | `{}`        |
-| `service.type`    | Service type.                                                                                  | `ClusterIP` |
+| Parameter         | Description                                                                                                                                                  | Default     |
+|-------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------|
+| `service.enabled` | Whether to create a service. This requires the definition of at least one `ports.servicePort`. This also configures `application.server` for the streams app | `false`     |
+| `service.labels`  | Additional service labels.                                                                                                                                   | `{}`        |
+| `service.type`    | Service type.                                                                                                                                                | `ClusterIP` |

charts/streams-app/templates/deployment.yaml

@@ -91,6 +91,16 @@ spec:
             - name: {{ printf "STREAMS_%s" $key | replace "." "_" | upper | quote }}
               value: {{ $value | quote }}
           {{- end }}
+          {{- range .Values.ports }}
+            {{- if .servicePort }} # TODO verify that there is at most one service port. Currently, if there are multiple service ports, the first one will be used
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
+            - name: STREAMS_APPLICATION_SERVER
+              value: "$(POD_IP):{{ .containerPort }}"
+            {{- end }}
+          {{- end }}
           {{- if .Values.streams.staticMembership }}
             - name: STREAMS_GROUP_INSTANCE_ID
               valueFrom:

charts/streams-app/templates/service.yaml

@@ -24,6 +24,6 @@ spec:
       protocol: {{ .protocol }}
       {{- end }}
     {{- end }}
-   {{- end }}
+  {{- end }}
   type: {{ .Values.service.type }}
 {{- end }}