AlinsRan commented on code in PR #2647:
URL: 
https://github.com/apache/apisix-ingress-controller/pull/2647#discussion_r2526061518


##########
config/crd/bases/apisix.apache.org_gatewayproxies.yaml:
##########
@@ -150,6 +155,9 @@ spec:
                     type: object
                     x-kubernetes-validations:
                     - rule: has(self.endpoints) != has(self.service)
+                    - message: mode is immutable
+                      rule: oldSelf == null || (!has(self.mode) && 
!has(oldSelf.mode))
+                        || self.mode == oldSelf.mode

Review Comment:
   The primary conservative consideration is to prevent unforeseen consequences 
by introducing this restriction.
   
   Since the ADC maintains in-memory state and different modes share the same 
cache_key, switching modes may affect the stored results.



##########
config/crd/bases/apisix.apache.org_gatewayproxies.yaml:
##########
@@ -150,6 +155,9 @@ spec:
                     type: object
                     x-kubernetes-validations:
                     - rule: has(self.endpoints) != has(self.service)
+                    - message: mode is immutable
+                      rule: oldSelf == null || (!has(self.mode) && 
!has(oldSelf.mode))
+                        || self.mode == oldSelf.mode

Review Comment:
   1. The primary conservative consideration is to prevent unforeseen 
consequences by introducing this restriction.
   
   2. Since the ADC maintains in-memory state and different modes share the 
same cache_key, switching modes may affect the stored results.



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