From 382d9ed477a45ff5b6a4199ef15f4651b0f00cd5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Se=C3=A1n=20C=20McCord?= <ulexus@gmail.com>
Date: Mon, 23 Jul 2018 06:38:53 -0400
Subject: [PATCH] ignore docker interfaces in default private IP determination

---
 discover/discover.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/discover/discover.go b/discover/discover.go
index dbc60a3..19d203b 100644
--- a/discover/discover.go
+++ b/discover/discover.go
@@ -207,6 +207,7 @@ func defaultPublicIPv6() (net.IP, error) {
 	return ip, nil
 }
 
+// nolint: gocyclo
 func defaultPrivateIPv4() (net.IP, error) {
 	netifs, err := net.Interfaces()
 	if err != nil {
@@ -214,6 +215,12 @@ func defaultPrivateIPv4() (net.IP, error) {
 	}
 
 	for _, i := range netifs {
+
+		// Skip docker interfaces
+		if strings.HasPrefix(i.Name, "docker") {
+			continue
+		}
+
 		addresses, err := i.Addrs()
 		if err != nil {
 			continue // next interface