How to enable ssl w/ nginx

nginx conf

server {
    listen         80;
    server_name your-domain.com;
    return         301 https://$server_name$request_uri;
}

server {
    listen 443 ssl;
	
    server_name your-domain.com;
    keepalive_timeout   70;

    ssl_certificate    /etc/letsencrypt/live/<cert_path>/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/<cert_path>/privkey.pem;

    location / {
        proxy_pass http://<app>;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;        
    }
}