Caddyfile

del.dog {
    reverse_proxy / localhost:8080 {
        header_up X-Forwarded-Ssl on
        header_up Host {host}
        header_up X-Real-IP {remote}
        header_up X-Forwarded-For {remote}
        header_up X-Forwarded-Port {server_port}
        header_up X-Forwarded-Proto {scheme}
        header_up X-Url-Scheme {scheme}
        header_up X-Forwarded-Host {host}
    }
}

del.dog/r/ {
    reverse_proxy / localhost:8083 {
        header_up X-Forwarded-Ssl on
        header_up Host {host}
        header_up X-Real-IP {remote}
        header_up X-Forwarded-For {remote}
        header_up X-Forwarded-Port {server_port}
        header_up X-Forwarded-Proto {scheme}
        header_up X-Url-Scheme {scheme}
        header_up X-Forwarded-Host {host}
    }
}

metrics.dogb.in {
    reverse_proxy / localhost:8082 {
        header_up X-Forwarded-Ssl on
        header_up Host {host}
        header_up X-Real-IP {remote}
        header_up X-Forwarded-For {remote}
        header_up X-Forwarded-Port {server_port}
        header_up X-Forwarded-Proto {scheme}
        header_up X-Url-Scheme {scheme}
        header_up X-Forwarded-Host {host}
    }
}