From 234ce529fc46c6c43598ecab2b92c0e58f8ebbcf Mon Sep 17 00:00:00 2001
From: Jeff Bradberry <jeff.bradberry@gmail.com>
Date: Mon, 17 Oct 2022 10:55:38 -0400
Subject: [PATCH] Add back in the uniqueness validation on Instance.hostname

---
 awx/api/serializers.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/awx/api/serializers.py b/awx/api/serializers.py
index c3c151e1d1..77e1bf37c1 100644
--- a/awx/api/serializers.py
+++ b/awx/api/serializers.py
@@ -4931,7 +4931,8 @@ class InstanceSerializer(BaseSerializer):
             'node_state': {'initial': Instance.States.INSTALLED, 'default': Instance.States.INSTALLED},
             'hostname': {
                 'validators': [
-                    MaxLengthValidator(limit_value=255),
+                    MaxLengthValidator(limit_value=250),
+                    validators.UniqueValidator(queryset=Instance.objects.all()),
                     RegexValidator(
                         regex='^localhost$|^127(?:\.[0-9]+){0,2}\.[0-9]+$|^(?:0*\:)*?:?0*1$',
                         flags=re.IGNORECASE,