[jira] [Created] (SPARK-36366) Google Kubernetes Engine authentication fails

["Tiago Reis (Jira)" <ji...@apache.org>]

Tiago Reis created SPARK-36366:
----------------------------------

             Summary: Google Kubernetes Engine authentication fails
                 Key: SPARK-36366
                 URL: https://issues.apache.org/jira/browse/SPARK-36366
             Project: Spark
          Issue Type: Bug
          Components: Kubernetes
    Affects Versions: 3.1.2
         Environment: 
{code}
$ kubectl version
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.15", GitCommit:"73dd5c840662bb066a146d0871216333181f4b64", GitTreeState:"clean", BuildDate:"2021-01-13T13:22:41Z", GoVersion:"go1.13.15", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"18+", GitVersion:"v1.18.19-gke.1701", GitCommit:"d7cecefb99b58e8968f59b59d76448eb1e6ea403", GitTreeState:"clean", BuildDate:"2021-06-23T21:51:59Z", GoVersion:"go1.13.15b4", Compiler:"gc", Platform:"linux/amd64"}

$ spark-submit --version
version 3.1.2
Using Scala version 2.12.10, OpenJDK 64-Bit Server VM, 11.0.10
{code}
            Reporter: Tiago Reis


When connecting to a Google Kubernetes Engine, a command {{gcloud container clusters get-credentials}} is used that generates a {{~/.kube/config}} file. The distinctive trait in this config file is that it uses an {{auth-provider}} relying on {{gcloud}} to inject the keys {{expiry}} and {{access-token}} from the general Google SDK auth config, as seen here:
{code:json}
users:
- name: gke_my-project_my-region_my-cluster
  user:
    auth-provider:
      config:
        cmd-args: config config-helper --format=json
        cmd-path: /Users/reist01/google-cloud-sdk/bin/gcloud
        expiry-key: '{.credential.token_expiry}'
        token-key: '{.credential.access_token}'
{code}
{{kubectl}}, because it uses {{client-go}}, supports the auth-provider and fetches the token and expiry from the json returne by config-helper. As Spark is using the fabric8 client, this is yet to be supported, breaking when running spark-submit:
{code:java}
Exception in thread "main" io.fabric8.kubernetes.client.KubernetesClientException: Failure executing: POST at: https://my-endpoint/api/v1/namespaces/my-namespace/pods. Message: Forbidden! User gke_my-project_my-region_my-cluster doesn't have permission. pods is forbidden: User "system:anonymous" cannot create resource "pods" in API group "" in the namespace "my-namespace".
{code}



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