The letsencrypt nginx config and issue shell script

ssl.conf

server {
    listen   443 http2 ssl;
    
    server_name example.com www.example.com;
    ssl_certificate /home/user/.acme.sh/example.com_ecc/fullchain.cer;
    ssl_certificate_key /home/user/.acme.sh/example.com_ecc/example.com.key;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_stapling on;
    ssl_stapling_verify on;

    ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS';
    ssl_prefer_server_ciphers on;
    ssl_dhparam /etc/nginx/ssl/dhparams.pem;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;
    add_header Strict-Transport-Security "max-age=63072000; preload";    
    #charset koi8-r;
    #access_log  /var/log/nginx/log/host.access.log  main;

    root /www/sites/example/public/;
    index index.php;

    location /.well-known/acme-challenge/ {
        alias /var/www/letsencrypt/.well-known/acme-challenge/;
        try_files $uri =404;
    }

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass 127.0.0.1:9000;
        fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_index index.php;
        include fastcgi_params;
    }

}

ssl.sh

acme.sh --issue -w /var/www/letsencrypt/ -d example.com --keylength ec-256
acme.sh --installcert -d example.com --reloadcmd "sudo service nginx force-reload" --ecc