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https://issues.apache.org/jira/browse/SPARK-57891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-57891:
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Labels: pull-request-available (was: )
> Add CredentialProvider SPI and ServiceLoader discovery
> ------------------------------------------------------
>
> Key: SPARK-57891
> URL: https://issues.apache.org/jira/browse/SPARK-57891
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Affects Versions: 4.3.0
> Reporter: Kousuke Saruta
> Priority: Major
> Labels: pull-request-available
>
> 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 pluggable SPI for exchanging an identity token for short-lived
> service credentials.
> h2. Goal
> Introduce a {{CredentialProvider}} SPI that providers (AWS STS, Azure, GCP,
> etc.) can implement to resolve credentials from a user identity.
> h2. Scope
> * Define {{CredentialProvider}} interface in {{org.apache.spark.security}}:
> {code:java}
> @DeveloperApi
> public interface CredentialProvider {
> void init(Map<String, String> conf);
> Set<String> supportedSchemes();
> ServiceCredential resolve(UserContext user, URI target)
> throws CredentialResolutionException;
> default Duration suggestedTtl() { return Duration.ofMinutes(15); }
> }
> {code}
> * {{CredentialProviderLoader}}: discovers providers via {{ServiceLoader}},
> resolves provider for a scheme based on
> {{spark.security.credentials.provider.<scheme>}}
> * {{FakeCredentialProvider}} under {{core/src/test}} for testing
> h2. Acceptance criteria
> * {{CredentialProviderLoader}} discovers {{FakeCredentialProvider}} via
> ServiceLoader.
> * Correct provider is selected based on scheme configuration.
> * Multiple providers for the same scheme are handled (configuration-based
> priority).
> * Unit tests for discovery, scheme resolution, init, and resolve.
> Reference: [SPIP design document Appendix
> A|https://docs.google.com/document/d/1usJKncCPMiyFUg7aIdpZ0HQsklXIHow_sU_6dfFMjN0/edit].
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