nginx config ghost redirect www to non-www and HTTP to HTTPS

ghost.conf

server {
    listen 443 http2;
    server_name namadomain.com www.namadomain.com;

set $my_var 0;
if ($host = 'www.namadomain.com') {
  set $my_var 1;
}
if ($my_var = 1) {
  rewrite ^/(.*)$ https://namadomain.com$request_uri permanent;
}   


    client_max_body_size 0;
    chunked_transfer_encoding on;
	
	ssl_certificate /etc/letsencrypt/live/namadomain.com/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/namadomain.com/privkey.pem;
	ssl_trusted_certificate /etc/letsencrypt/live/namadomain.com/chain.pem;

	ssl_session_cache shared:SSL:20m;
	ssl_session_timeout 10m;
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;
        ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';

	 add_header Strict-Transport-Security "max-age=31536000; includeSubDomains";

	ssl_dhparam /etc/nginx/dhparam.pem;

        location = /robots.txt {
                allow all;
                log_not_found off;
                access_log off;
        }

    location / {
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-NginX-Proxy true;
            proxy_pass http://0.0.0.0:3001/;
            proxy_ssl_session_reuse off;
            proxy_set_header Host $http_host;
            proxy_cache_bypass $http_upgrade;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_read_timeout 900;
            proxy_redirect off;
    }

}

server {
    listen 80;
    server_name namadomain.com www.namadomain.com;

set $my_var 0;
if ($host = 'www.namadomain.com') {
  set $my_var 1;
}
if ($my_var = 1) {
  rewrite ^/(.*)$ https://namadomain.com$request_uri permanent;
}   

}