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89b64910f3a09c66ff7ff0f65b8a94f2a830b636
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3 Commits
Author SHA1 Message Date
niksis02 89b64910f3 feat: add IAM user inline policy CRUD 
Add support for AWS-compatible inline identity-based policies on IAM
users, implementing the `PutUserPolicy`, `GetUserPolicy`, `DeleteUserPolicy`, and `ListUserPolicies` actions on both the internal and Vault storage
backends.

- iamapi/policy is a new package that parses and validates policy documents against IAM's parameter-level constraints (max length, allowed charset) and policy grammar (Version, Effect, mutually exclusive Action/NotAction and Resource/NotResource, vendor-prefixed actions, ARN-shaped resources, no Principal/NotPrincipal, unique Sids).
- `PutUserPolicy` creates or replaces a named inline policy on a user, enforcing a 2048-byte aggregate quota across all of a user's inline policies (MaxInlinePolicyBytesPerUser), matching the AWS IAM quota.
- `GetUserPolicy` returns a policy's document RFC 3986 percent-encoded, matching how real IAM encodes the PolicyDocument response element.
- `DeleteUserPolicy` removes a named inline policy from a user.
- `ListUserPolicies` returns a paginated, sorted list of a user's inline policy names, honoring Marker/MaxItems like the other IAM list APIs.
- `DeleteUser` is now rejected with a DeleteConflict error if the user still has inline policies attached, mirroring the existing access-key delete-conflict behavior.
 2026-07-10 03:17:23 +04:00
niksis02 001e7d88e4 feat: add IAM user access key management 
Add `CreateAccessKey`, `UpdateAccessKey`, `DeleteAccessKey`, `ListAccessKeys`, and `GetAccessKeyLastUsed` actions for managing user access keys and retrieving their latest usage details.

Generate AWS-style access key IDs and secrets, validate key identifiers and statuses, enforce per-user key quotas, and prevent deleting users that still own access keys. Persist access keys across internal and Vault storage backends with ownership indexing, pagination, and IAM-compatible errors and XML responses.
 2026-07-06 23:14:28 +04:00
niksis02 b590ac9eca feat: add AWS-compatible standalone IAM service 
Closes #1640

Add a standalone AWS IAM Query API implementation for managing IAM users through standard AWS SDKs and the AWS CLI.

Server usage

Start the IAM server with internal file-backed storage:

    mkdir -p /tmp/versitygw-iam
    ./versitygw --port 127.0.0.1:7070 --access user --secret pass iam --dir /tmp/versitygw-iam

Start the IAM server with Vault KV v2 storage using AppRole:

    VGW_IAM_VAULT_ROLE_SECRET=<role-secret> ./versitygw --port 127.0.0.1:7070 --access user --secret pass iam --vault-endpoint-url http://127.0.0.1:8200 --vault-auth-method approle --vault-role-id <role-id> --vault-mount-path kv --vault-secret-storage-path iam

Vault authentication also supports root tokens, separate authentication and secret-storage namespaces, custom mount paths, server certificate validation, and mutual TLS client certificates.

Configure the AWS CLI credentials used by the IAM server:

    export AWS_ACCESS_KEY_ID=user
    export AWS_SECRET_ACCESS_KEY=pass
    export AWS_DEFAULT_REGION=us-east-1

Implemented IAM actions

CreateUser creates an IAM user with an AWS-compatible ARN, generated AIDA user ID, creation timestamp, optional path, and tags. It validates usernames, paths, tag limits, reserved tag prefixes, duplicate tag keys, and existing users.

    aws --endpoint-url http://127.0.0.1:7070 iam create-user --user-name bob

    aws --endpoint-url http://127.0.0.1:7070 iam create-user --user-name bob --path /engineering/ --tags Key=team,Value=storage

GetUser returns a stored user or the root identity when requested without a username through the IAM Query API.

    aws --endpoint-url http://127.0.0.1:7070 iam get-user --user-name bob

ListUsers returns users in deterministic username order and supports path filtering, marker-based pagination, and MaxItems limits.

    aws --endpoint-url http://127.0.0.1:7070 iam list-users

    aws --endpoint-url http://127.0.0.1:7070 iam list-users --path-prefix /engineering/ --max-items 100

UpdateUser updates the username and/or path, recalculates the user ARN, and rejects conflicts with existing users.

    aws --endpoint-url http://127.0.0.1:7070 iam update-user --user-name bob --new-user-name robert --new-path /platform/

DeleteUser permanently removes an IAM user and returns AWS-compatible errors for missing users.

    aws --endpoint-url http://127.0.0.1:7070 iam delete-user --user-name robert

IAM protocol and authentication

- Support the AWS IAM Query protocol version 2010-05-08 over GET and POST form requests.
- Return AWS-compatible XML responses, error documents, status codes, request IDs, user metadata, and pagination fields.
- Authenticate root credentials with AWS Signature Version 4 for the IAM service in us-east-1.
- Support both Authorization-header and query-string SigV4 authentication.
- Validate credential scope, signed headers, timestamps, clock skew, content length, signatures, and unsupported signature or session-token modes.
- Add IAM-specific validation and error mapping for malformed requests, invalid actions, duplicate entities, missing users, throttling, and internal failures.

Storage implementations

- Add an internal JSON-backed store using iam.json and iam.json.backup with atomic temporary-file replacement, concurrent access protection, stable ordering, pagination, and persistence across restarts.
- Add a Vault KV v2 store with one secret per user, CAS-based duplicate protection, permanent deletion, AppRole reauthentication, namespace support, configurable authentication and KV mounts, root-token authentication, and TLS/mTLS configuration.
- Introduce a common Storer interface and require exactly one storage backend to be configured.

Server and embedding support

- Register the new `versitygw iam` command with environment-variable and CLI configuration for both storage backends.
- Add `embedgw.RunIAMAPI` and `IAMConfig` for embedding the IAM service in Go applications.

Gateway-level internal packages

- Add `internal/iamstore` as a reusable generic file-backed IAM persistence engine and migrate the existing gateway internal IAM service to it.
- Add `internal/sigv4auth` for shared SigV4 header and presigned-query parsing, canonical request generation, signature verification, and structured authentication errors.
- Refactor the S3 authentication paths to use the shared SigV4 implementation while preserving S3-specific error responses.
- Add `internal/httpctx` for shared Fiber context keys and AWS-style request ID handling.
- Add `internal/routekit` for shared query, form, and header route matchers.
- Add `internal/netutil` for reusable certificate storage, hostname-aware listeners, multi-address serving, TLS listeners, and UNIX socket handling.
- Update the custom SigV4 signer to honor an explicitly supplied signed-header list so unrelated headers do not alter IAM signatures.

Testing and CI

- Add AWS IAM SDK-based integration coverage for all supported user actions, header authentication, query authentication, validation, errors, filtering, and pagination.
- Split standalone IAM tests into `versitygw test iam` and retain existing gateway IAM tests under `versitygw test gw-iam`.
- Add unit coverage for controllers, authentication, routing, storage, embedding, listeners, request matching, persistence, and signing behavior.
- Add `runiamtests.sh` to exercise internal storage over HTTP and HTTPS plus Vault storage through AppRole.
- Add a dedicated IAM functional-test workflow with a Vault service and merged runtime coverage reporting.
- Include the IAM test runner in shellcheck and add the AWS IAM SDK dependency.
 2026-07-02 23:02:02 +04:00