forked from coredns/coredns
/
root.go
45 lines (36 loc) · 911 Bytes
/
root.go
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package root
import (
"os"
"github.com/coredns/coredns/core/dnsserver"
"github.com/coredns/coredns/plugin"
clog "github.com/coredns/coredns/plugin/pkg/log"
"github.com/mholt/caddy"
)
var log = clog.NewWithPlugin("root")
func init() {
caddy.RegisterPlugin("root", caddy.Plugin{
ServerType: "dns",
Action: setup,
})
}
func setup(c *caddy.Controller) error {
config := dnsserver.GetConfig(c)
for c.Next() {
if !c.NextArg() {
return plugin.Error("root", c.ArgErr())
}
config.Root = c.Val()
}
// Check if root path exists
_, err := os.Stat(config.Root)
if err != nil {
if os.IsNotExist(err) {
// Allow this, because the folder might appear later.
// But make sure the user knows!
log.Warningf("Root path does not exist: %s", config.Root)
} else {
return plugin.Error("root", c.Errf("unable to access root path '%s': %v", config.Root, err))
}
}
return nil
}