The term Caddyfile describes a text file that changes how an instance of the Caddy web server works.
Definition:
The Caddyfile is the configuration file of the caddy web server.
It is similar in purpose to httpd.conf or nginx.conf.
The Caddyfile file can be named anything, but by default, Caddy will look for a file called Caddyfile in the current directory.
Example Usage:
example.com {
root /www/example.com
}
sub.example.com {
root /www/sub.example.com
gzip
log ../access.log
}