Domain names may end with ., but hostnames may not

1 files changed, 5 insertions, 1 deletions

diff --git a/config-provisioning/src/main/java/com/yahoo/config/provision/HostName.java b/config-provisioning/src/main/java/com/yahoo/config/provision/HostName.java
index e55737da18d..515ed24ae0b 100644
--- a/config-provisioning/src/main/java/com/yahoo/config/provision/HostName.java
+++ b/config-provisioning/src/main/java/com/yahoo/config/provision/HostName.java
@@ -3,6 +3,7 @@ package com.yahoo.config.provision;
 
 import ai.vespa.http.DomainName;
 
+import static ai.vespa.validation.Validation.require;
 import static ai.vespa.validation.Validation.requireLength;
 
 /**
@@ -13,7 +14,10 @@ import static ai.vespa.validation.Validation.requireLength;
 public class HostName extends DomainName {
 
     private HostName(String value) {
-        super(requireLength(value, "hostname length", 1, 64));
+        super(requireLength(require( ! value.endsWith("."),
+                                     value, "hostname cannot end with '.'"),
+                            "hostname length", 1, 64),
+              "hostname");
     }
 
     public static HostName of(String value) {