[jira] [Created] (FLINK-30518) [flink-operator] Kubernetes HA not working due to wrong jobmanager.rpc.address

["Binh-Nguyen Tran (Jira)" <ji...@apache.org>]

Binh-Nguyen Tran created FLINK-30518:
----------------------------------------

             Summary: [flink-operator] Kubernetes HA not working due to wrong jobmanager.rpc.address
                 Key: FLINK-30518
                 URL: https://issues.apache.org/jira/browse/FLINK-30518
             Project: Flink
          Issue Type: Bug
          Components: Kubernetes Operator
    Affects Versions: kubernetes-operator-1.3.0
         Environment: ~ flinkdeployment.yaml ~

```

spec:

  flinkConfiguration:

    high-availability: kubernetes
    high-availability.storageDir: "file:///opt/flink/storage"

    ...

  jobManager:

    replicas: 3

```
            Reporter: Binh-Nguyen Tran
         Attachments: flink-configmap.png

Since flink-conf.yaml is mounted as read-only configmap, the /docker-entrypoint.sh script is not able to inject correct Pod IP to `jobmanager.rpc.address`. This leads to same address (e.g flink.ns-ext) being set for all Job Manager pods. This causes:

(1) flink-cluster-config-map always contains same address for all 3 component leaders (see screenshot)

(2) Accessing Web UI when jobmanager.replicas > 1 is not possible with error

```

{"errors":["Service temporarily unavailable due to an ongoing leader election. Please refresh."]}

```



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