override coredns version

cmd/coredns.go

@@ -1,9 +1,12 @@
 package main
 
 import (
+	"fmt"
+
 	_ "github.com/coredns/coredns/core/plugin"
 	_ "github.com/ori-edge/k8s_gateway"
 
+	"github.com/coredns/caddy"
 	"github.com/coredns/coredns/core/dnsserver"
 	"github.com/coredns/coredns/coremain"
 )
@@ -13,6 +16,8 @@ var dropPlugins = map[string]bool{
 	"k8s_external": true,
 }
 
+const pluginVersion = "0.2.4"
+
 func init() {
 	var directives []string
 	var alreadyAdded bool
@@ -34,5 +39,7 @@ func init() {
 }
 
 func main() {
+	// extend CoreDNS version with plugin details
+	caddy.AppVersion = fmt.Sprintf("%s+k8s_gateway-%s", coremain.CoreVersion, pluginVersion)
 	coremain.Run()
 }