proxy-tls.nginx.conf

worker_processes 4;

events {
  worker_connections 4096;
}

# generated 2023-07-24, Mozilla Guideline v5.7, nginx 1.25.1, OpenSSL 3.0.9, intermediate configuration
# https://ssl-config.mozilla.org/#server=nginx&version=1.25.1&config=intermediate&openssl=3.0.9&guideline=5.7
http {
  server {
    listen 80 default_server;
    listen [::]:80 default_server;

    location / {
      return 301 https://$host$request_uri;
    }
  }

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

    ssl_certificate /etc/nginx/certs/cert.pem;
    ssl_certificate_key /etc/nginx/certs/privkey.pem;
    ssl_session_timeout 1d;
    ssl_session_cache shared:MozSSL:10m;  # about 40000 sessions
    ssl_session_tickets off;

    # curl https://ssl-config.mozilla.org/ffdhe2048.txt > /path/to/dhparam
    ssl_dhparam /etc/nginx/dhparam;

    # intermediate configuration
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305;
    ssl_prefer_server_ciphers off;

    # HSTS (ngx_http_headers_module is required) (63072000 seconds)
    add_header Strict-Transport-Security "max-age=63072000" always;

    # OCSP stapling
    ssl_stapling on;
    ssl_stapling_verify on;

    # verify chain of trust of OCSP response using Root CA and Intermediate certs
    ssl_trusted_certificate /etc/nginx/certs/chain.pem;

    # replace with the IP address of your resolver
    resolver 127.0.0.1;

    location / {
      root /usr/share/nginx/html;
      try_files $uri /index.html;
    }

    location /api/ {
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_pass http://api:4056/;
      proxy_ssl_session_reuse off;
      proxy_set_header Host $http_host;
      proxy_cache_bypass $http_upgrade;
      proxy_redirect off;
    }
  }
}