connector: add gcloud-iap connector for Google Cloud IAP#4751
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alessandro-verzicco wants to merge 1 commit intodexidp:masterfrom
Open
connector: add gcloud-iap connector for Google Cloud IAP#4751alessandro-verzicco wants to merge 1 commit intodexidp:masterfrom
alessandro-verzicco wants to merge 1 commit intodexidp:masterfrom
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Add a new connector that validates Google Cloud Identity-Aware Proxy (IAP) ES256 JWTs from the X-Goog-IAP-JWT-Assertion header. The connector: - Cryptographically verifies the IAP JWT signature via Google's public JWKS - Extracts user identity (email, subject) from verified JWT claims - Optionally resolves Google Workspace group membership via the Admin Directory API using workload identity (no domain-wide delegation required) - Supports glob-based group filtering with case-insensitive matching - Supports transitive (nested) group membership resolution - Works with both single-domain (domain) and multi-domain (customerID) setups Refs dexidp#4567 Signed-off-by: Alessandro Verzicco <alessandro.verzicco@truecaller.com>
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Hello, thank you for opening the PR. We are currently not accepting new connectors to upstream - we are figuring out the way to implement external connectors #4578 |
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Summary
Adds a new
gcloud-iapconnector that validates Google Cloud Identity-Aware Proxy (IAP) JWTs and optionally resolves Google Workspace group membership.What it does
X-Goog-IAP-JWT-Assertionheader against Google's public JWKS, checking issuer, audience, and expiry.sub,email) to a Dex identity.*@example.com,platform-*@example.com, or exact matches. Case-insensitive. Multiple patterns are OR-ed.domainandcustomerIDscoping.Files changed
connector/gcloudiap/gcloudiap.go— connector implementationconnector/gcloudiap/gcloudiap_test.go— unit testsserver/server.go— registergcloud-iaptype inConnectorsConfigdocs/connectors/gcloud-iap.md— documentationHow to test
groupsFilteranddomain/customerID.Unit tests cover JWT verification (valid, expired, wrong audience, missing header), config validation, glob filtering logic, and URL construction.
Refs #4567