004c5fca9d
Abstract the caddy call and make it simpler. See #3261 for some part of the discussion. Go from: ~~~ go func init() { caddy.RegisterPlugin("any", caddy.Plugin{ ServerType: "dns", Action: setup, }) } ~~~ To: ~~~ go func init() { plugin.Register("any", setup) } ~~~ This requires some external documents in coredns.io to be updated as well; the old way still works, so it's backwards compatible. Signed-off-by: Miek Gieben <miek@miek.nl>
46 lines
808 B
Go
46 lines
808 B
Go
package nsid
|
|
|
|
import (
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/coredns/coredns/core/dnsserver"
|
|
"github.com/coredns/coredns/plugin"
|
|
|
|
"github.com/caddyserver/caddy"
|
|
)
|
|
|
|
func init() { plugin.Register("nsid", setup) }
|
|
|
|
func setup(c *caddy.Controller) error {
|
|
nsid, err := nsidParse(c)
|
|
if err != nil {
|
|
return plugin.Error("nsid", err)
|
|
}
|
|
|
|
dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
|
|
return Nsid{Next: next, Data: nsid}
|
|
})
|
|
|
|
return nil
|
|
}
|
|
|
|
func nsidParse(c *caddy.Controller) (string, error) {
|
|
// Use hostname as the default
|
|
nsid, err := os.Hostname()
|
|
if err != nil {
|
|
nsid = "localhost"
|
|
}
|
|
i := 0
|
|
for c.Next() {
|
|
if i > 0 {
|
|
return nsid, plugin.ErrOnce
|
|
}
|
|
i++
|
|
args := c.RemainingArgs()
|
|
if len(args) > 0 {
|
|
nsid = strings.Join(args, " ")
|
|
}
|
|
}
|
|
return nsid, nil
|
|
}
|