Nested servers with Let's Encrypt Certbot
To optionally proxy ACME challenge requests from an docker.io/jonasal/nginx-certbot instance to a Mailu front container or serve them directly, I use the following Nginx configuration: # HTTP server for ACME challenge server { listen 80; server_name {{ tld }}; # ACME challenge location /.well-known/acme-challenge/ { resolver 10.89.0.1 valid=