Allow stopping LLMInferenceService (kserve#4839)

Signed-off-by: Pierangelo Di Pilato <pierdipi@redhat.com>

Author: pierDipi

pkg/apis/serving/v1alpha1/llm_inference_service_lifecycle.go

@@ -65,6 +65,10 @@ func (in *LLMInferenceService) MarkMainWorkloadNotReady(reason, messageFormat st
 	in.GetConditionSet().Manage(in.GetStatus()).MarkFalse(MainWorkloadReady, reason, messageFormat, messageA...)
 }
 
+func (in *LLMInferenceService) MarkMainWorkloadUnset() {
+	_ = in.GetConditionSet().Manage(in.GetStatus()).ClearCondition(MainWorkloadReady)
+}
+
 func (in *LLMInferenceService) MarkWorkerWorkloadReady() {
 	in.GetConditionSet().Manage(in.GetStatus()).MarkTrue(WorkerWorkloadReady)
 }
@@ -73,6 +77,10 @@ func (in *LLMInferenceService) MarkWorkerWorkloadNotReady(reason, messageFormat
 	in.GetConditionSet().Manage(in.GetStatus()).MarkFalse(WorkerWorkloadReady, reason, messageFormat, messageA...)
 }
 
+func (in *LLMInferenceService) MarkWorkerWorkloadUnset() {
+	_ = in.GetConditionSet().Manage(in.GetStatus()).ClearCondition(WorkerWorkloadReady)
+}
+
 func (in *LLMInferenceService) MarkPrefillWorkloadReady() {
 	in.GetConditionSet().Manage(in.GetStatus()).MarkTrue(PrefillWorkloadReady)
 }
@@ -81,6 +89,10 @@ func (in *LLMInferenceService) MarkPrefillWorkloadNotReady(reason, messageFormat
 	in.GetConditionSet().Manage(in.GetStatus()).MarkFalse(PrefillWorkloadReady, reason, messageFormat, messageA...)
 }
 
+func (in *LLMInferenceService) MarkPrefillWorkloadUnset() {
+	_ = in.GetConditionSet().Manage(in.GetStatus()).ClearCondition(PrefillWorkloadReady)
+}
+
 func (in *LLMInferenceService) MarkPrefillWorkerWorkloadReady() {
 	in.GetConditionSet().Manage(in.GetStatus()).MarkTrue(PrefillWorkerWorkloadReady)
 }
@@ -89,6 +101,10 @@ func (in *LLMInferenceService) MarkPrefillWorkerWorkloadNotReady(reason, message
 	in.GetConditionSet().Manage(in.GetStatus()).MarkFalse(PrefillWorkerWorkloadReady, reason, messageFormat, messageA...)
 }
 
+func (in *LLMInferenceService) MarkPrefillWorkerWorkloadUnset() {
+	_ = in.GetConditionSet().Manage(in.GetStatus()).ClearCondition(PrefillWorkerWorkloadReady)
+}
+
 func (in *LLMInferenceService) DetermineWorkloadReadiness() {
 	subConditions := []*apis.Condition{
 		in.GetStatus().GetCondition(MainWorkloadReady),
@@ -129,6 +145,10 @@ func (in *LLMInferenceService) MarkGatewaysReady() {
 	in.GetConditionSet().Manage(in.GetStatus()).MarkTrue(GatewaysReady)
 }
 
+func (in *LLMInferenceService) MarkGatewaysReadyUnset() {
+	_ = in.GetConditionSet().Manage(in.GetStatus()).ClearCondition(GatewaysReady)
+}
+
 func (in *LLMInferenceService) MarkGatewaysNotReady(reason, messageFormat string, messageA ...interface{}) {
 	in.GetConditionSet().Manage(in.GetStatus()).MarkFalse(GatewaysReady, reason, messageFormat, messageA...)
 }
@@ -141,6 +161,10 @@ func (in *LLMInferenceService) MarkHTTPRoutesNotReady(reason, messageFormat stri
 	in.GetConditionSet().Manage(in.GetStatus()).MarkFalse(HTTPRoutesReady, reason, messageFormat, messageA...)
 }
 
+func (in *LLMInferenceService) MarkHTTPRoutesReadyUnset() {
+	_ = in.GetConditionSet().Manage(in.GetStatus()).ClearCondition(HTTPRoutesReady)
+}
+
 func (in *LLMInferenceService) MarkInferencePoolReady() {
 	in.GetConditionSet().Manage(in.GetStatus()).MarkTrue(InferencePoolReady)
 }
@@ -149,6 +173,10 @@ func (in *LLMInferenceService) MarkInferencePoolNotReady(reason, messageFormat s
 	in.GetConditionSet().Manage(in.GetStatus()).MarkFalse(InferencePoolReady, reason, messageFormat, messageA...)
 }
 
+func (in *LLMInferenceService) MarkInferencePoolReadyUnset() {
+	_ = in.GetConditionSet().Manage(in.GetStatus()).ClearCondition(InferencePoolReady)
+}
+
 func (in *LLMInferenceService) DetermineRouterReadiness() {
 	subConditions := []*apis.Condition{
 		in.GetStatus().GetCondition(GatewaysReady),