magento+varnish+nginx setup

magento+varnish+nginx setup

upstream fastcgi_backend {
     server  unix:/run/php/php7.4-fpm.sock;
}

server {
    server_name example.com;
    listen 127.0.0.1:8080;
    set $MAGE_ROOT /var/www/html/webfolder;
    fastcgi_buffers 16 16k; 
    fastcgi_buffer_size 32k;
    include /var/www/html/webfolder/nginx.conf.sample;
}

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

server {
    listen 443 ssl http2;
    server_name example.com;
    access_log /var/log/nginx/example.com-access.log;
    error_log /var/log/nginx/example.com-error.log;
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
    keepalive_timeout 300s;
    fastcgi_buffers 16 16k;
    fastcgi_buffer_size 32k;
    proxy_buffer_size   128k;
    proxy_buffers   4 256k;
    proxy_busy_buffers_size   256k;     

    # OCSP stapling
    ssl_stapling on;
    ssl_stapling_verify on;

    add_header Strict-Transport-Security "max-age=63072000" always;
    location / {
        proxy_pass http://127.0.0.1:6081;
        proxy_set_header Host $http_host;
        proxy_set_header X-Forwarded-Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Ssl-Offloaded "1";
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header X-Forwarded-Port 443;
        proxy_redirect  http://example.com:8080/  /;
        proxy_http_version 1.1;
    }
}