Nginx configuration to redirect everything (www or not, http or https) to https://www.example.com

nginx_redirect_1.sh

server {
	server_name www.example.com;
	listen 80 ;
	access_log /var/log/nginx/access.log vhost;
	return 301 https://$host$request_uri;
}

nginx_redirect_2.sh

server {
	listen 80;
	server_name example.com;
	return 301 https://www.example.com$request_uri;
}

nginx_redirect_3.sh

server {
	server_name example.com;
	listen 443 ssl http2 ;
	ssl_certificate /etc/nginx/certs/example.com.crt;
	ssl_certificate_key /etc/nginx/certs/example.com.key;
	ssl_dhparam /etc/nginx/certs/example.com.dhparam.pem;
	return 301 $scheme://www.example.com$request_uri;
}

nginx_redirect_4.sh

server {
	server_name www.example.com;
	listen 443 ssl http2 ;
	access_log /var/log/nginx/access.log vhost;
	ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
	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_session_timeout 5m;
	ssl_session_cache shared:SSL:50m;
	ssl_session_tickets off;
	ssl_certificate /etc/nginx/certs/www.example.com.crt;
	ssl_certificate_key /etc/nginx/certs/www.example.com.key;
	ssl_dhparam /etc/nginx/certs/www.example.com.dhparam.pem;
	add_header Strict-Transport-Security "max-age=31536000";
	include /etc/nginx/vhost.d/default;
	location / {
		proxy_pass http://www.example.com;
	}
}