Closes#2322
The admin API could not be served under a path prefix. Admin requests are SigV4-signed over the full path, so a reverse proxy or Gateway API route cannot strip a prefix before forwarding. That made it impossible to serve the WebUI and the admin API under one hostname. The new `--admin-path-prefix` (`VGW_ADMIN_PATH_PREFIX`) option mounts the admin routes under a single-segment prefix such as `/admin`, on `--admin-port` or, when that is unset, on the S3 port. Admin clients include the prefix in their endpoint URL, which the admin CLI and the WebUI already support.
The prefix is limited to unreserved characters, because clients and the gateway encode other characters differently when signing. When the admin API shares the S3 port, the prefix must also differ from `--webui-s3-prefix`, otherwise the WebUI mount answers the admin requests. Auto-detected WebUI admin gateway URLs and the startup banner now include the prefix. The admin routes served on the S3 port now reuse `S3AdminRouter` instead of a duplicated route list. This also stops the standalone admin server from recording bucket creation under the `ActionAdminListBuckets` action.
The Helm chart now exposes `webui.pathPrefix`, `webui.s3Prefix` and `admin.pathPrefix`. The WebUI gateway lists are also passed when only `webui.s3Prefix` is set, since the WebUI hosted on the S3 port does not require `webui.enabled`.
Internal IAM data can now live on its own volume. `iam.dir` sets the IAM directory, and `iam.persistence` creates or references a dedicated PVC when `iam.enabled` is true and `iam.type` is `internal`. Otherwise IAM data stays in the `iam` subdirectory of the backend data volume, so existing releases are unaffected.
The chart now rejects overlapping storage directories. `iam.dir` must be an absolute path outside `/mnt/data`, `gateway.backend.sidecarDir` and `gateway.backend.versioningDir`, and those three directories must not overlap each other. Deleting a bucket removes `<dir>/<bucket>` from the sidecar and versioning directories, so with nested directories, deleting a suitably named bucket could wipe IAM accounts, object versions or the entire backend data directory.
Enhances the static website hosting implementation with more complete S3-compatible behavior across request handling, backend storage, validation, CORS, and errors.
Adds dedicated website endpoint handling for GET, HEAD, and OPTIONS requests, including index document resolution, error document serving, redirect-all support, pre-fetch and post-error routing rules, query string preservation in redirects, public access checks before object reads, and method-not-allowed responses.
Improves error handling for website responses by returning S3-compatible HTML error bodies with request IDs, host IDs, x-amz-error-code, x-amz-error-message, and specialized error fields. This also fixes website-related validation errors to return more accurate S3-style error codes and messages, including invalid redirect protocols, invalid HTTP redirect/error codes, conflicting routing rule replacements, routing rule limits, and oversized website configuration requests.
Adds website CORS support for GET, HEAD, and OPTIONS preflight requests, including bucket CORS lookup through website host bucket resolution, allowed origin/method/header validation, exposed header handling, ETag exposure, Vary headers, max-age handling, and CORS access-denied responses.
Adds debug logging around website configuration parsing, validation failures, CORS checks, backend lookup failures, and internal website error paths to make failures easier to diagnose.
Adds compressed website configuration storage so larger configs fit backend metadata limits, including gzip storage for POSIX extended attributes and base64-encoded compressed metadata for Azure. Also adds Azure PutBucketWebsite, GetBucketWebsite, and DeleteBucketWebsite support.
Adds and expands test coverage for website config validation, S3-compatible HTML error bodies, website routing behavior, public access enforcement, HEAD behavior, CORS handling, PutBucketWebsite limits, and end-to-end website hosting through a Docker-based dnsmasq test setup and CI workflow.
Move the runGateway implementation from cmd/versitygw/main.go into a
new embedgw package, exposing RunVersityGW(ctx, Backend, *Config) and a
Config struct. This allows external applications to embed and run the
VersityGW S3 gateway as a library.
niksis02
Ben McClelland