If you want to deploy a static website with Caddy server, the Caddyfile is like following:
example.com www.example.com {
root * /root/webroot/example.com
file_server
encode gzip
log {
#level ERROR
output file /root/caddy/example.com.log {
roll_size 0.1gb
roll_keep 2
roll_keep_for 48h
}
}
}