server {
  listen 80;
  server_name _;

  # Real client IP behind ingress-nginx.
  set_real_ip_from 0.0.0.0/0;
  real_ip_header X-Forwarded-For;
  real_ip_recursive on;

  # SPA history fallback.
  root /usr/share/nginx/html;
  index index.html;

  # GET /api/v1/dictionaries и /api/v1/<name>/records → read-api.
  # POST/PUT/PATCH/DELETE на тех же путях → writer (ordinis-app).
  # Method-based routing через map.
  location /api/v1/ {
    set $backend "ordinis-read-api";
    if ($request_method ~ ^(POST|PUT|PATCH|DELETE)$) {
      set $backend "ordinis-app";
    }
    proxy_pass http://$backend;
    proxy_http_version 1.1;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_pass_request_headers on;
  }

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