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https://issues.apache.org/jira/browse/FLINK-38492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18028915#comment-18028915
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Shengkai Fang commented on FLINK-38492:
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+1
> Support Kubernetes Pod Template in SQL Gateway Application Mode Deployment
> --------------------------------------------------------------------------
>
> Key: FLINK-38492
> URL: https://issues.apache.org/jira/browse/FLINK-38492
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Gateway
> Reporter: yuanfenghu
> Priority: Major
>
> h3. Background
> The Flink SQL Gateway provides a REST API to deploy SQL scripts in
> Application Mode via the /sessions/:sessionId/scripts endpoint. However, when
> deploying to Kubernetes, users cannot specify pod templates because the
> kubernetes.pod-template-file.* configuration options require local file
> paths, which are not accessible through REST API requests.This limitation
> significantly reduces the flexibility of SQL Gateway for production
> Kubernetes deployments, where pod templates are commonly used to configure:
>
> * Resource limits and requests
> * Node selectors and affinity rules
> * Volume mounts and secrets
> * Security contexts
> * Custom annotations and labels
> * Sidecar containers
> h3. Current Behavior
> When submitting an Application Mode job through SQL Gateway REST API:
> {code:java}
> //
> POST /sessions/{sessionId}/scripts
> {
> "script": "CREATE TABLE ...; INSERT INTO ...",
> "executionConfig": {
> "kubernetes.pod-template-file.default": "/path/to/pod-template.yaml" //
> ❌ This doesn't work
> }
> } {code}
> Problems:
> # The file path refers to the client side, not the SQL Gateway server
> # SQL Gateway server cannot access client-side files
> # No mechanism exists to pass pod template content through REST API
> h3. Expected Behavior
> Users should be able to specify Kubernetes pod templates when deploying
> Application Mode jobs through SQL Gateway, similar to how it works with CLI
> deployment.
>
>
>
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