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https://issues.apache.org/jira/browse/SPARK-56275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-56275:
-----------------------------------
Labels: pull-request-available (was: )
> Set appProtocol on Kubernetes service ports
> -------------------------------------------
>
> Key: SPARK-56275
> URL: https://issues.apache.org/jira/browse/SPARK-56275
> Project: Spark
> Issue Type: Improvement
> Components: Kubernetes
> Affects Versions: kubernetes-operator-0.9.0
> Reporter: Jiwon Park
> Priority: Minor
> Labels: pull-request-available
>
> Kubernetes service ports support an {{appProtocol}} field that hints service
> meshes
> (e.g. Istio, Linkerd) and ingress controllers about the application-layer
> protocol
> in use on each port. Without this field, service meshes treat all traffic as
> opaque
> TCP, which prevents L7-aware load balancing, protocol-specific retries, and
> gRPC
> health checking.
> This improvement sets {{appProtocol}} on service ports managed by the Spark
> Kubernetes Operator:
> *SparkCluster services* (created directly by the operator):
> * Master service: {{web}} (8080) → {{{}http{}}}, {{spark}} (7077) →
> {{{}tcp{}}}, {{rest}} (6066) → {{http}}
> * Worker service: {{web}} (8081) → {{http}}
> *SparkApplication driver service* (created by Spark's
> DriverServiceFeatureStep and included in driverResources):
> * {{driver-rpc-port}} → {{tcp}}
> * {{blockmanager}} → {{tcp}}
> * {{spark-ui}} → {{http}}
> * {{spark-connect}} → {{grpc}}
> For SparkApplication, ports that already have {{appProtocol}} set (e.g. via
> user-defined service templates) are left unchanged to preserve user overrides.
> This change is non-breaking: environments without a service mesh simply
> ignore the field.
> See also: [https://github.com/kubeflow/spark-operator/pull/2823]
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