Invert Ipv6CidrBlock Check (#2216)

Invert Ipv6CidrBlock check. AssignIpv6AddressOnCreation depends on Ipv6CidrBlock, not the other way round.
cloudtools · Jan 29, 2024 · a7a6c8a · a7a6c8a
1 parent 6a2ab81
commit a7a6c8a
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/troposphere/validators/ec2.py b/troposphere/validators/ec2.py
@@ -326,11 +326,11 @@ def validate_subnet(self):
     """
     Class: Subnet
     """
-    if "Ipv6CidrBlock" in self.properties:
-        if not self.properties.get("AssignIpv6AddressOnCreation"):
+    if self.properties.get("AssignIpv6AddressOnCreation"):
+        if "Ipv6CidrBlock" not in self.properties:
             raise ValueError(
-                "If Ipv6CidrBlock is present, "
-                "AssignIpv6AddressOnCreation must be set to True"
+                "If AssignIpv6AddressOnCreation is set to True, "
+                "Ipv6CidrBlock must be present"
             )