[
https://issues.apache.org/jira/browse/SPARK-57892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18094063#comment-18094063
]
Shrirang Mhalgi commented on SPARK-57892:
-----------------------------------------
I can work on this.
> Add TokenIngestor interface and FileTokenIngestor implementation
> ----------------------------------------------------------------
>
> Key: SPARK-57892
> URL: https://issues.apache.org/jira/browse/SPARK-57892
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Affects Versions: 4.3.0
> Reporter: Kousuke Saruta
> Priority: Major
>
> This sub-task is part of the umbrella
> [SPARK-57703|https://issues.apache.org/jira/browse/SPARK-57703] (OIDC
> Credential Propagation).
> h2. Problem
> There is no mechanism to read an OIDC identity token from a file and produce
> a {{UserContext}} for the credential propagation framework.
> h2. Goal
> Introduce a {{TokenIngestor}} abstraction and a file-based implementation
> that reads and monitors an OIDC token file.
> h2. Scope
> * {{TokenIngestor}} interface: {{load(): Option[UserContext]}}
> * {{FileTokenIngestor}}:
> ** Reads token from path configured via
> {{spark.security.credentials.identityToken.file}}
> ** Parses JWT claims (sub, iss, exp, iat) to construct {{UserContext}}
> ** Detects file rotation via mtime change
> ** Handles errors gracefully (malformed JWT, missing file, empty file)
> * JWT parsing: use jjwt (already a Spark dependency) for unsigned claims
> parsing
> h2. Acceptance criteria
> * {{FileTokenIngestor.load()}} returns a valid {{UserContext}} from a token
> file.
> * Rotation detection: after file content changes, {{load()}} returns updated
> {{UserContext}}.
> * Invalid content (malformed JWT, empty file) does not crash; returns None or
> previous valid context.
> * Works with both workload-level SA tokens and per-user identity tokens.
> * Unit tests for all above cases.
> Reference: [SPIP design document Appendix
> B|https://docs.google.com/document/d/1usJKncCPMiyFUg7aIdpZ0HQsklXIHow_sU_6dfFMjN0/edit].
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
