__APP_INGRESS_HTTP__

server {
  listen 80 default_server;
  server_name "";

  location = /health {
    access_log off;
    default_type text/plain;
    return 200 "ok\n";
  }

  location / {
    return 444;
  }
}

server {
  listen 80;
  server_name __APP_EXTERNAL_HOST__;

  __APP_INGRESS_CHECK__

  add_header X-Content-Type-Options "nosniff" always;
  add_header X-Frame-Options "DENY" always;
  add_header Referrer-Policy "strict-origin-when-cross-origin" always;
  add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;

  root /usr/share/nginx/html;
  index index.html;

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

  location = /health {
    proxy_pass http://backend-web:8080/health;
    proxy_http_version 1.1;

    proxy_set_header Host __APP_EXTERNAL_AUTHORITY__;
    proxy_set_header X-Real-IP $remote_addr;
    # realip resolves one sanitized address only from an explicitly trusted socket peer.
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header X-Forwarded-Proto __APP_EXTERNAL_SCHEME__;
    proxy_set_header X-Forwarded-Host "";
    proxy_set_header Forwarded "";
  }

  location = /ready {
    proxy_pass http://backend-web:8080/ready;
    proxy_http_version 1.1;

    proxy_set_header Host __APP_EXTERNAL_AUTHORITY__;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header X-Forwarded-Proto __APP_EXTERNAL_SCHEME__;
    proxy_set_header X-Forwarded-Host "";
    proxy_set_header Forwarded "";
  }

  location /api/ {
    proxy_pass http://backend-web:8080;
    proxy_http_version 1.1;

    proxy_set_header Host __APP_EXTERNAL_AUTHORITY__;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header X-Forwarded-Proto __APP_EXTERNAL_SCHEME__;
    proxy_set_header X-Forwarded-Host "";
    proxy_set_header Forwarded "";
  }
}