[stable/jenkins] Change default serviceType to ClusterIP (#18103)

To avoid accidental costs when chart is deployed for testing without any
values.

I think if user wants to expose their Jenkins directly into internet,
that should be explicit decision.

Signed-off-by: Mateusz Gozdek <mateusz@kinvolk.io>

stable/jenkins/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 name: jenkins
 home: https://jenkins.io/
-version: 1.8.2
+version: 1.9.0
 appVersion: lts
 description: Open source continuous integration server. It supports multiple SCM tools
   including CVS, Subversion and Git. It can execute Apache Ant and Apache Maven-based

stable/jenkins/README.md

@@ -87,7 +87,7 @@ The following tables list the configurable parameters of the Jenkins chart and t
 | `master.fsGroup`                  | uid that will be used for persistent volume | `0`                                |
 | `master.hostAliases`              | Aliases for IPs in `/etc/hosts`      | `[]`                                      |
 | `master.serviceAnnotations`       | Service annotations                  | `{}`                                      |
-| `master.serviceType`              | k8s service type                     | `LoadBalancer`                            |
+| `master.serviceType`              | k8s service type                     | `ClusterIP`                               |
 | `master.servicePort`              | k8s service port                     | `8080`                                    |
 | `master.targetPort`               | k8s target port                      | `8080`                                    |
 | `master.nodePort`                 | k8s node port                        | Not set                                   |

stable/jenkins/values.yaml

@@ -90,7 +90,7 @@ master:
   targetPort: 8080
   # For minikube, set this to NodePort, elsewhere use LoadBalancer
   # Use ClusterIP if your setup includes ingress controller
-  serviceType: LoadBalancer
+  serviceType: ClusterIP
   # Jenkins master service annotations
   serviceAnnotations: {}
   # Jenkins master custom labels