I have tried them all.
And I finally stick with #sozu + #letsencrypt!
It's a webserver/proxy with:
- hot reload 
- builtin metrics 
- minimal #toml configuration
You should give it a shot.
It is fairly quick to configure and get running.
GitHubGitHub - sozu-proxy/sozu: Sōzu HTTP reverse proxy, configurable at runtime, fast and safe, built in Rust. It is awesome!Sōzu HTTP reverse proxy, configurable at runtime, fast and safe, built in Rust. It is awesome! - sozu-proxy/sozu