From 74ffcc8d2e97bd4c19c62fda637e4ce19678889f Mon Sep 17 00:00:00 2001
From: Chris Green <34572557+cgreen12@users.noreply.github.com>
Date: Sun, 2 Jun 2019 13:18:40 -0400
Subject: [PATCH] Do the dns lookup

Signed-off-by: Chris Green <34572557+cgreen12@users.noreply.github.com>
---
 pkg/goldpinger/stats.go | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/pkg/goldpinger/stats.go b/pkg/goldpinger/stats.go
index a54b4ca..ad0b899 100644
--- a/pkg/goldpinger/stats.go
+++ b/pkg/goldpinger/stats.go
@@ -16,6 +16,7 @@ package goldpinger
 
 import (
 	"log"
+	"net"
 	"time"
 
 	"github.com/bloomberg/goldpinger/pkg/models"
@@ -97,8 +98,24 @@ func init() {
 
 func GetStats() *models.PingResults {
 	// GetStats no longer populates the received and made calls - use metrics for that instead
+	dnsResults := models.DNSResults{}
+	if len(GoldpingerConfig.DnsHosts) > 0 {
+		for _, host := range GoldpingerConfig.DnsHosts{
+			
+			var dnsResult models.DNSResult
+
+			start := time.Now()
+			_, err := net.LookupIP(host)
+			if err != nil {
+				dnsResult.Error = err.Error()
+			}
+			dnsResult.ResponseTimeMs = time.Since(start).Nanoseconds() / int64(time.Millisecond)
+			dnsResults[host] = dnsResult
+		}
+	}
 	return &models.PingResults{
 		BootTime: strfmt.DateTime(bootTime),
+		DNSResults: dnsResults,
 	}
 }