etc/nginx/conf.d/default.conf
server { listen 8080 default_server; root /usr/share/nginx/html/$lang; location = /index.html { add_header Cache-Control "public, must-revalidate"; } location / { try_files $uri $uri/ /index.html =404; } location = /robots.txt { expires 7d; try_files /robots/$http_host.txt /robots/robots.txt; } error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; }}