From 6410c6f6b2737231206f8f336aefd148e5d4b163 Mon Sep 17 00:00:00 2001
From: Gabriel Aszalos <gabriel.aszalos@datadoghq.com>
Date: Tue, 11 Sep 2018 10:04:16 +0300
Subject: [PATCH] config: fail start-up when hostname is empty

---
 config/agent.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/config/agent.go b/config/agent.go
index 25626dbdd..40b32d868 100644
--- a/config/agent.go
+++ b/config/agent.go
@@ -175,7 +175,7 @@ func (c *AgentConfig) Validate() error {
 	}
 	if c.Hostname == "" {
 		if err := c.acquireHostname(); err != nil {
-			return ErrMissingHostname
+			return err
 		}
 	}
 	return nil
@@ -207,6 +207,9 @@ func (c *AgentConfig) acquireHostname() error {
 	if err != nil || c.Hostname == "" {
 		c.Hostname, err = os.Hostname()
 	}
+	if c.Hostname == "" {
+		err = ErrMissingHostname
+	}
 	return err
 }