A Docker image for HUProxy.
docker run -d -p 8086:8086 tblyler/huproxy
You can then use port 8086 for your web proxy. For configuration see HUProxy's GitHub.
To run with different options...
-listen :8086 is part of the ENTRYPOINT
docker run -d -p 8086:8086 tblyler/huproxy -dial_timeout 30s -write_timeout 30s -handshake_timeout 30s