feat(k8s): added possibility to specify service.type for multiple ser… (#8372)

* feat(k8s): added possibility to specify service.type for multiple services in helm chart

* fix(k8s): removed headless (clusterIP: None) from services

* fix(k8s): keep master and filer services headless for StatefulSet compatibility

Master and filer services must remain headless (clusterIP: None) because
their StatefulSets reference them via serviceName for stable pod DNS.
Revert the service.type change for these two services and remove their
unused service config from values.yaml. S3 and SFTP remain configurable.

---------

Co-authored-by: Andreas Røste <andreas2101@gmail.com>
Co-authored-by: Chris Lu <chrislusf@users.noreply.github.com>
Co-authored-by: Chris Lu <chris.lu@gmail.com>

k8s/charts/seaweedfs/templates/s3/s3-service.yaml

@@ -15,6 +15,7 @@ metadata:
     {{- toYaml .Values.s3.annotations | nindent 4 }}
 {{- end }}
 spec:
+  type: {{ .Values.s3.service.type }}
   internalTrafficPolicy: {{ .Values.s3.internalTrafficPolicy | default "Cluster" }}
   {{- $td := .Values.s3.trafficDistribution | default .Values.filer.s3.trafficDistribution }}
   {{- if and (semverCompare ">=1.31-0" .Capabilities.KubeVersion.GitVersion) $td }}

k8s/charts/seaweedfs/templates/sftp/sftp-service.yaml

@@ -15,6 +15,7 @@ metadata:
     {{- toYaml .Values.sftp.annotations | nindent 4 }}
 {{- end }}
 spec:
+  type: {{ .Values.sftp.service.type }}
   internalTrafficPolicy: {{ .Values.sftp.internalTrafficPolicy | default "Cluster" }}
   ports:
   - name: "swfs-sftp"
@@ -31,4 +32,4 @@ spec:
     app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
     app.kubernetes.io/instance: {{ .Release.Name }}
     app.kubernetes.io/component: sftp
-{{- end }}
+{{- end }}

k8s/charts/seaweedfs/values.yaml

@@ -1104,6 +1104,10 @@ s3:
     annotations: {}
     tls: []
 
+  # Service settings
+  service:
+    type: ClusterIP
+
   icebergIngress:
     enabled: false
     className: ""
@@ -1185,6 +1189,10 @@ sftp:
     failureThreshold: 100
     timeoutSeconds: 10
 
+  # Service settings
+  service:
+    type: ClusterIP
+
 admin:
   enabled: false
   imageOverride: null