map $http_upgrade $connection_upgrade {
    default upgrade;
    '' close;
  }

server {
    listen 80;
    server_name grafana.domain.ru;

    return 301 https://grafana.domain.ru$request_uri;

}

server {

    listen 443 ssl http2;
    server_name grafana.domain.ru;

    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;

    ssl_certificate             /etc/nginx/ssl/domain.pem;
    ssl_certificate_key         /etc/nginx/ssl/domain.key;

    add_header X-XSS-Protection "1; mode=block";
    add_header X-Content-Type-Options nosniff;
    add_header Strict-Transport-Security 'max-age=31536000;' always;

    access_log /var/log/nginx/grafana.domain.ru/access.log extended;
    error_log /var/log/nginx/grafana.domain.ru/error.log;

    # websockets for Loki live streaming logs
    location ~ /(api/datasources/proxy/\d+/loki/api/v1/tail) {
      proxy_pass          http://192.168.212.10:3000$request_uri;
      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_set_header    Connection        $connection_upgrade;
      proxy_set_header    Upgrade           $http_upgrade;
  }

    location / {
        proxy_pass http://192.168.212.10:3000;
        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;
    }

}