Things that I would like to do with Roxy:
- Support etcd and zookeeper for ACME cert/key/challenge storage
- X-Forwarded-IP et al for backend requests
- Fork of io.Copy that respects ctx cancellation
- Fork of http.ServeContent that respects ctx cancellation
- Make fs target respond to OPTIONS
- Make fs target reject POST et al with Method Not Allowed
- Don't try to generate checksums/etag when file is larger than
$numMiB - Unique request IDs for log correlation
- Re-open log file on SIGHUP
- Make journald logging more useful
- Scripts to generate Debian package
- Scripts to generate Docker image
- Prometheus metrics on a new HTTP listen port
- WrappedWriter.Error should not Write after WriteHeader if r.Method is HEAD
- Recognize symlinks in FileSystemHandler.ServeDir
- User control of in-memory cache threshold
- Investigate possible bidirectional support of HTTP trailers to/from backends
- Investigate possible use of HTTP body filters to/from backends
- Optional TLS/mTLS between Roxy and backends
- Resolve backend IPs through DNS A + port, DNS SRV, Finagle ServerSets in ZooKeeper, others?
- Match rules on r.Method
- Support WebSockets