Caddy V2 IP whitelist - linux

Question

I am trying to implement IP whitelist on my Caddy v2 configuration. Something equivalent to NGINX configuration like:
allow 1.1.1.1;
allow 8.8.8.8;
deny all;
My current Caddy configuration pretty straight forward:
my.website.com {
reverse_proxy http://127.0.0.1:3000 {
}
}
Thanks

Answer 1

You can try something like this in caddy v2:
my.domain.com {
#teammember {
remote_ip forwarded 183.77.5.126 113.73.5.126
}
handle #teammember {
reverse_proxy /* localhost:8081
}
respond "<h1>You are attempting to access protected resources!</h1>" 403
}

Answer 2

I'm not saying qed's answer is wrong, however I couldn't get it to work in my case (possibly due to using import templates inside a handle?)...
My solution was... Old config:
private.example.com {
import my_template argument_1 /path/to/example/argument2
}
This changed to:
private.example.com {
#blocked not remote_ip 1.2.3.4
respond #blocked "<h1>Access Denied</h1>" 403
import my_template argument_1 /path/to/example/argument2
}
Simply adding those two lines allows my site to be accessed on that IP. A test curl from a different IP returned the 403 error.
This is done on Caddy 2.4.6

Answer 3

I am not sure it is possible directly in Caddy, but you can add a middleware/plugin to do this.
Here is the link you can get it : https://github.com/pyed/ipfilter
According to the doc of this middleware, to you want to allow only the 2 IPs you wrote, you should probably do something like this :
my.website.com {
reverse_proxy http://127.0.0.1:3000
ipfilter / {
rule allow
ip 1.1.1.1 8.8.8.8
blockpage notauthorized.html
}
}
I also think if want to block every requests, not just the /, you have to write ipfilter /* instead of ipfilter /.