ecapoccia commented on a change in pull request #27034: [SPARK-30122][K8S]
Support spark.kubernetes.authenticate.executor.serviceAccountName
URL: https://github.com/apache/spark/pull/27034#discussion_r375544810
##########
File path:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/ExecutorKubernetesCredentialsFeatureStep.scala
##########
@@ -17,19 +17,23 @@
package org.apache.spark.deploy.k8s.features
import org.apache.spark.deploy.k8s.{KubernetesConf, SparkPod}
-import org.apache.spark.deploy.k8s.Config.KUBERNETES_SERVICE_ACCOUNT_NAME
+import
org.apache.spark.deploy.k8s.Config.{KUBERNETES_DRIVER_SERVICE_ACCOUNT_NAME,
KUBERNETES_EXECUTOR_SERVICE_ACCOUNT_NAME}
import org.apache.spark.deploy.k8s.KubernetesUtils.buildPodWithServiceAccount
private[spark] class ExecutorKubernetesCredentialsFeatureStep(kubernetesConf:
KubernetesConf)
extends KubernetesFeatureConfigStep {
- private lazy val driverServiceAccount =
kubernetesConf.get(KUBERNETES_SERVICE_ACCOUNT_NAME)
+
+ private lazy val driverServiceAccount =
kubernetesConf.get(KUBERNETES_DRIVER_SERVICE_ACCOUNT_NAME)
+ private lazy val executorServiceAccount =
+ kubernetesConf.get(KUBERNETES_EXECUTOR_SERVICE_ACCOUNT_NAME)
override def configurePod(pod: SparkPod): SparkPod = {
pod.copy(
- // if not setup by the pod template fallback to the driver's sa,
- // last option is the default sa.
+ // if not setup by the pod template, fallback to the executor's sa,
+ // if executor's sa is not setup, the last option is driver's sa.
pod = if (Option(pod.pod.getSpec.getServiceAccount).isEmpty) {
- buildPodWithServiceAccount(driverServiceAccount,
pod).getOrElse(pod.pod)
Review comment:
@liyinan926 agree with you. they are very different, and should have
different identities.
Also -- apologies in advance I am betraying the fact that I'm old here..:)
It violates the principle of least astonishment
https://en.wikipedia.org/wiki/Principle_of_least_astonishment
If one sets the driver service account to XYZ and says nothing about the
executor service account, I don't think that one expects the executor's service
account to be XYZ.
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