Expose transport port 9300 on client service (ClusterIP) (#13090)

* Expose transport port based on new configuration parameter 'client.exposeTransportPort'

Signed-off-by: Paweł Kubica <pawel.kubica@comarch.pl>

* Update README.md

Signed-off-by: Paweł Kubica <pawel.kubica@comarch.pl>

* Bump Chart version.

Signed-off-by: Paweł Kubica <pawel.kubica@comarch.pl>

* Update stable/elasticsearch/Chart.yaml

Bump minor version instead of a patch

Co-Authored-By: pawcykca <49437476+pawcykca@users.noreply.github.com>
Signed-off-by: Paweł Kubica <pawel.kubica@comarch.pl>

* Add test value to ci directory

Signed-off-by: Paweł Kubica <pawel.kubica@comarch.pl>

* Bump chart version

Signed-off-by: Paweł Kubica <pawel.kubica@comarch.pl>

stable/elasticsearch/Chart.yaml

@@ -1,6 +1,6 @@
 name: elasticsearch
 home: https://www.elastic.co/products/elasticsearch
-version: 1.25.0
+version: 1.26.0
 appVersion: 6.7.0
 description: Flexible and powerful open source, distributed real-time search and analytics
   engine.

stable/elasticsearch/README.md

@@ -99,6 +99,7 @@ The following table lists the configurable parameters of the elasticsearch chart
 | `client.ingress.annotations`         | Client Ingress annotations                                          | `{}`                                                |
 | `client.ingress.hosts`               | Client Ingress Hostnames                                            | `[]`                                                |
 | `client.ingress.tls`                 | Client Ingress TLS configuration                                    | `[]`                                                |
+| `client.exposeTransportPort`         | Expose transport port 9300 on client service (ClusterIP)            | `false`                                             |
 | `master.initResources`               | Master initContainer resources requests & limits                    | `{}`                                                |
 | `master.additionalJavaOpts`          | Parameters to be added to `ES_JAVA_OPTS` environment variable for master | `""`                                           |
 | `master.exposeHttp`                  | Expose http port 9200 on master Pods for monitoring, etc            | `false`                                             |

stable/elasticsearch/ci/expose-transport-port-on-service-values.yaml

@@ -0,0 +1,5 @@
+---
+# Expose transport port on ClusterIP service
+
+client:
+  exposeTransportPort: true

stable/elasticsearch/templates/client-svc.yaml

@@ -21,6 +21,11 @@ spec:
       nodePort: {{ .Values.client.httpNodePort }}
 {{- end }}
       targetPort: http
+{{- if .Values.client.exposeTransportPort }}
+    - name: transport
+      port: 9300
+      targetPort: transport
+{{- end }}
   selector:
     app: {{ template "elasticsearch.name" . }}
     component: "{{ .Values.client.name }}"