badguardhome/coredns_plugin/reload.go

40 lines
764 B
Go

package dnsfilter
import (
"log"
"github.com/mholt/caddy"
)
var Reload = make(chan bool)
func hook(event caddy.EventName, info interface{}) error {
if event != caddy.InstanceStartupEvent {
return nil
}
// this should be an instance. ok to panic if not
instance := info.(*caddy.Instance)
go func() {
trace("Will wait for Reload channel")
for range Reload {
trace("Got message on Reload, restarting coredns")
corefile, err := caddy.LoadCaddyfile(instance.Caddyfile().ServerType())
if err != nil {
continue
}
_, err = instance.Restart(corefile)
if err != nil {
log.Printf("Corefile changed but reload failed: %s", err)
continue
}
// hook will be called again from new instance
return
}
}()
return nil
}