* s3api: persist single-identity IAM changes through the credential manager
CreateAccessKey, DeleteAccessKey, UpdateAccessKey, PutUserPolicy, DeleteUserPolicy, SetUserStatus, UpdateUser and DeleteUser used to load the whole configuration, change one identity and then SaveConfiguration, rewriting and re-propagating every identity. They now write only the identity (and, for rename/delete, the groups and service accounts that referenced it) through the credential manager, which propagates that identity alone. Static identities and skipPersist keep the previous full-save/no-write contract.
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* iamapi: persist single-identity IAM changes through the credential manager
Same targeted-write change as the embedded IAM API for the standalone weed iam dispatcher: UpdateUser, DeleteUser, CreateAccessKey, DeleteAccessKey, UpdateAccessKey, PutUserPolicy and DeleteUserPolicy write one identity through the credential manager instead of saving the whole configuration. CreateAccessKey keeps the full save when the handler created a user the store does not know.
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* credential/memory: re-key identity on UpdateUser rename
UpdateUser stored the identity under the old username key even when identity.Name changed. Re-key it the way filer_etc does (delete old, save new) so the targeted rename path sees the moved record.
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* test: cover targeted single-identity IAM writes
Recording-store tests assert each rerouted action uses the single-identity credential store methods and never SaveConfiguration, in both the embedded S3 IAM dispatcher and the standalone iamapi dispatcher, plus the skipPersist and static-identity contracts and a memory-store rename case.
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* credential: keep not-found and rename-collision semantics in stores
IamGrpcStore.DeleteAccessKey translates gRPC NotFound to ErrAccessKeyNotFound so a repeat delete stays the no-op the IAM handlers advertise. MemoryStore.UpdateUser rejects a rename onto an existing user instead of overwriting it, matching RenameUser.
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Co-authored-by: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
* admin: attach admin-signed Bearer token on filer IAM gRPC calls
PR #9442 added Bearer-JWT enforcement on the filer's IAM gRPC service
but didn't update its only production client, IamGrpcStore. The admin
UI Users/Groups pages went through that client and started failing in
4.24 with either Unimplemented (filer refuses to register the service
when jwt.filer_signing.key is empty) or Unauthenticated (the client
sent no token). Issues #9495 and #9496 both trace to this gap.
Plumb jwt.filer_signing.key into IamGrpcStore via a new SetAdminSigning
hook called from the admin server, and append a freshly minted Bearer
token to outgoing metadata on every call. The mint helper
security.GenJwtForFilerAdmin existed since #9442 but had no production
caller; this wires it up.
Add an integration test alongside grpc_store.go that runs a real
IamGrpcServer over a real grpc.Server listener and exercises the store
end-to-end: matching key succeeds, wrong key returns Unauthenticated,
no key returns Unauthenticated. Without the client-side token attach
the success path fails, so the regression cannot land again.
* address review: include adminSigningExpiresAfterSec in mu comment
