1 files changed, 0 insertions, 100 deletions
diff --git a/middleware/metrics/setup.go b/middleware/metrics/setup.go
deleted file mode 100644
index 30b05d4ff..000000000
--- a/middleware/metrics/setup.go
+++ /dev/null
@@ -1,100 +0,0 @@
-package metrics
-
-import (
-	"net"
-
-	"github.com/coredns/coredns/core/dnsserver"
-	"github.com/coredns/coredns/middleware"
-
-	"github.com/mholt/caddy"
-)
-
-func init() {
-	caddy.RegisterPlugin("prometheus", caddy.Plugin{
-		ServerType: "dns",
-		Action:     setup,
-	})
-
-	uniqAddr = addrs{a: make(map[string]int)}
-}
-
-func setup(c *caddy.Controller) error {
-	m, err := prometheusParse(c)
-	if err != nil {
-		return middleware.Error("prometheus", err)
-	}
-
-	dnsserver.GetConfig(c).AddMiddleware(func(next middleware.Handler) middleware.Handler {
-		m.Next = next
-		return m
-	})
-
-	for a, v := range uniqAddr.a {
-		if v == todo {
-			// During restarts we will keep this handler running, BUG.
-			c.OncePerServerBlock(m.OnStartup)
-		}
-		uniqAddr.a[a] = done
-	}
-	c.OnFinalShutdown(m.OnShutdown)
-
-	return nil
-}
-
-func prometheusParse(c *caddy.Controller) (*Metrics, error) {
-	var (
-		met = &Metrics{Addr: addr, zoneMap: make(map[string]bool)}
-		err error
-	)
-
-	defer func() {
-		uniqAddr.SetAddress(met.Addr)
-	}()
-
-	for c.Next() {
-		if len(met.ZoneNames()) > 0 {
-			return met, c.Err("can only have one metrics module per server")
-		}
-
-		for _, z := range c.ServerBlockKeys {
-			met.AddZone(middleware.Host(z).Normalize())
-		}
-		args := c.RemainingArgs()
-
-		switch len(args) {
-		case 0:
-		case 1:
-			met.Addr = args[0]
-			_, _, e := net.SplitHostPort(met.Addr)
-			if e != nil {
-				return met, e
-			}
-		default:
-			return met, c.ArgErr()
-		}
-	}
-	return met, err
-}
-
-var uniqAddr addrs
-
-// Keep track on which addrs we listen, so we only start one listener.
-type addrs struct {
-	a map[string]int
-}
-
-func (a *addrs) SetAddress(addr string) {
-	// If already there and set to done, we've already started this listener.
-	if a.a[addr] == done {
-		return
-	}
-	a.a[addr] = todo
-}
-
-// Addr is the address the where the metrics are exported by default.
-const addr = "localhost:9153"
-
-const (
-	todo = 1
-	done = 2
-)