donuk/httpurlbasedproxy repository overview

Also on github:

https://github.com/donuk/docker-httpurlbasedproxy⁠

Show dockerhub on http://localhost/docker⁠ and duckduckgo on http://localhost/duck⁠

docker run -p 80:80 -e PROXY_BACKEND_1=/docker:https://hub.docker.com⁠ -e PROXY_BACKEND_2=/duck:https://duckduckgo.com⁠ --rm donuk/httpurlbasedproxy

If your backend proxies change ip frequently (e.g. if they are local services undergoing updates) you can use environment variable SHORT_DNS_TTL=yes to reduce dns caching times and prevent 502 errors.