zeppelin/docker/development/nginx/default.conf

server {
  listen 443 ssl http2;
  listen [::]:443 ssl http2;
  server_name localhost;

  root /zeppelin/dashboard/dist;

  location / {
    index index.html;
    try_files $uri $uri/ /index.html;
  }

  # Using a variable here stops nginx from crashing if the dev container is restarted or becomes otherwise unavailable
  set $backend_upstream "http://devenv:_API_PORT_";

  location /api {
    # Remove /api/ from the beginning when passing the path to the API process
    rewrite /api(/.*)$ $1 break;

    # Using a variable in proxy_pass also requires resolver to be set.
    # This is the address of the internal docker compose DNS server.
    resolver 127.0.0.11;

    proxy_pass $backend_upstream$uri$is_args$args;
    proxy_redirect off;

    client_max_body_size 200M;
  }

  ssl_certificate /etc/ssl/certs/localhost-cert.pem;
  ssl_certificate_key /etc/ssl/private/localhost-cert.key;

  ssl_session_timeout 1d;
  ssl_session_cache shared:MozSSL:10m;
  ssl_session_tickets off;

  ssl_protocols TLSv1.3;
  ssl_prefer_server_ciphers off;
}