nginx.conf

events {
    worker_connections 1024;
}
http {
    server {
        listen 80;
        server_name resin;

        client_max_body_size 100m;

        include  /etc/nginx/mime.types;

        server_tokens off;
        add_header X-Frame-Options SAMEORIGIN;
        add_header X-Content-Type-Options nosniff;
        add_header X-XSS-Protection "1; mode=block";
        add_header Strict-Transport-Security "max-age=31536000;";

        resolver ${NS} ipv6=off;
        set $backend "http://${BACKEND_HOST}:${BACKEND_PORT}";

        location /admin {
            proxy_pass $backend;
        }
        location /api {
            proxy_pass $backend;
        }
        location /static {
            root /resin-backend;
        }
        location /uploads {
            root /resin-backend;
        }

        error_page 404 /404.html;
        location / {
            root /resin-frontend/build;
            try_files $uri $uri.html $uri/index.html index.html;
        }
    }
}