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[feat gateway-api]implement gateway listener status #4357
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,175 @@ | ||
| package gateway | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "sort" | ||
| "time" | ||
|
|
||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| gateway_constants "sigs.k8s.io/aws-load-balancer-controller/pkg/gateway/constants" | ||
| "sigs.k8s.io/aws-load-balancer-controller/pkg/gateway/routeutils" | ||
| gwv1 "sigs.k8s.io/gateway-api/apis/v1" | ||
| ) | ||
|
|
||
| func buildListenerStatus(controllerName string, gateway gwv1.Gateway, attachedRoutesMap map[gwv1.SectionName]int32, validateListenerResults *routeutils.ListenerValidationResults) []gwv1.ListenerStatus { | ||
| var listenerStatuses []gwv1.ListenerStatus | ||
|
|
||
| // if validateListenerResults is nil, getListenerConditions will build condition with accepted condition | ||
| for _, listener := range gateway.Spec.Listeners { | ||
| supportedKinds, _ := routeutils.GetSupportedKinds(controllerName, listener) | ||
| var condition []metav1.Condition | ||
| if validateListenerResults == nil { | ||
| condition = getListenerConditions(gateway, nil) | ||
| } else { | ||
| listenerValidationResult := validateListenerResults.Results[listener.Name] | ||
| condition = getListenerConditions(gateway, &listenerValidationResult) | ||
| } | ||
|
|
||
| listenerStatus := gwv1.ListenerStatus{ | ||
| Name: listener.Name, | ||
| SupportedKinds: supportedKinds, | ||
| AttachedRoutes: attachedRoutesMap[listener.Name], | ||
| Conditions: condition, | ||
| } | ||
| listenerStatuses = append(listenerStatuses, listenerStatus) | ||
| } | ||
| return listenerStatuses | ||
| } | ||
|
|
||
| func getListenerConditions(gw gwv1.Gateway, listenerValidationResult *routeutils.ListenerValidationResult) []metav1.Condition { | ||
| var conditions []metav1.Condition | ||
|
|
||
| // Determine condition type based on reason | ||
| if listenerValidationResult == nil { | ||
| return append(conditions, buildAcceptedCondition(gw, gwv1.ListenerReasonAccepted, gateway_constants.ListenerAcceptedMessage)) | ||
| } | ||
| listenerReason := listenerValidationResult.Reason | ||
| listenerErrMessage := listenerValidationResult.Message | ||
| switch listenerReason { | ||
| case gwv1.ListenerReasonHostnameConflict, gwv1.ListenerReasonProtocolConflict: | ||
| conditions = append(conditions, buildConflictedCondition(gw, listenerReason, listenerErrMessage)) | ||
| case gwv1.ListenerReasonPortUnavailable, gwv1.ListenerReasonUnsupportedProtocol: | ||
| conditions = append(conditions, buildAcceptedCondition(gw, listenerReason, listenerErrMessage)) | ||
| case gwv1.ListenerReasonInvalidRouteKinds, gwv1.ListenerReasonRefNotPermitted: | ||
| conditions = append(conditions, buildResolvedRefsCondition(gw, listenerReason, listenerErrMessage)) | ||
| default: | ||
| conditions = append(conditions, buildAcceptedCondition(gw, gwv1.ListenerReasonAccepted, gateway_constants.ListenerAcceptedMessage)) | ||
| } | ||
|
|
||
| return conditions | ||
| } | ||
|
|
||
| func buildAcceptedCondition(gw gwv1.Gateway, reason gwv1.ListenerConditionReason, message string) metav1.Condition { | ||
| status := metav1.ConditionTrue | ||
| if reason != gwv1.ListenerReasonAccepted { | ||
| status = metav1.ConditionFalse | ||
| } | ||
|
|
||
| return metav1.Condition{ | ||
| Type: string(gwv1.ListenerConditionAccepted), | ||
| Status: status, | ||
| Reason: string(reason), | ||
| Message: message, | ||
| LastTransitionTime: metav1.NewTime(time.Now()), | ||
| ObservedGeneration: gw.GetGeneration(), | ||
| } | ||
| } | ||
|
|
||
| func buildConflictedCondition(gw gwv1.Gateway, reason gwv1.ListenerConditionReason, message string) metav1.Condition { | ||
| status := metav1.ConditionTrue | ||
| if reason != gwv1.ListenerReasonAccepted { | ||
| status = metav1.ConditionFalse | ||
| } | ||
| return metav1.Condition{ | ||
| Type: string(gwv1.ListenerConditionConflicted), | ||
| Status: status, | ||
| Reason: string(reason), | ||
| Message: message, | ||
| LastTransitionTime: metav1.NewTime(time.Now()), | ||
| ObservedGeneration: gw.GetGeneration(), | ||
| } | ||
| } | ||
|
|
||
| func buildResolvedRefsCondition(gw gwv1.Gateway, reason gwv1.ListenerConditionReason, message string) metav1.Condition { | ||
| status := metav1.ConditionTrue | ||
| if reason != gwv1.ListenerReasonAccepted { | ||
| status = metav1.ConditionFalse | ||
| } | ||
| return metav1.Condition{ | ||
| Type: string(gwv1.ListenerConditionResolvedRefs), | ||
| Status: status, | ||
| Reason: string(reason), | ||
| Message: message, | ||
| LastTransitionTime: metav1.NewTime(time.Now()), | ||
| ObservedGeneration: gw.GetGeneration(), | ||
| } | ||
| } | ||
|
|
||
| func isListenerStatusIdentical(listenerStatus []gwv1.ListenerStatus, listenerStatusOld []gwv1.ListenerStatus) bool { | ||
| if len(listenerStatus) != len(listenerStatusOld) { | ||
| return false | ||
| } | ||
| // Sort both slices by Name before comparison | ||
| sort.Slice(listenerStatus, func(i, j int) bool { | ||
| return listenerStatus[i].Name < listenerStatus[j].Name | ||
| }) | ||
| sort.Slice(listenerStatusOld, func(i, j int) bool { | ||
| return listenerStatusOld[i].Name < listenerStatusOld[j].Name | ||
| }) | ||
| for i := range listenerStatus { | ||
| if listenerStatus[i].Name != listenerStatusOld[i].Name { | ||
| return false | ||
| } | ||
|
|
||
| if !compareSupportedKinds(listenerStatus[i].SupportedKinds, listenerStatusOld[i].SupportedKinds) { | ||
| return false | ||
| } | ||
|
|
||
| if listenerStatus[i].AttachedRoutes != listenerStatusOld[i].AttachedRoutes { | ||
| return false | ||
| } | ||
| if len(listenerStatus[i].Conditions) != len(listenerStatusOld[i].Conditions) { | ||
| return false | ||
| } | ||
| for j := range listenerStatus[i].Conditions { | ||
| if listenerStatus[i].Conditions[j].Type != listenerStatusOld[i].Conditions[j].Type { | ||
| return false | ||
| } | ||
| if listenerStatus[i].Conditions[j].Status != listenerStatusOld[i].Conditions[j].Status { | ||
| return false | ||
| } | ||
| if listenerStatus[i].Conditions[j].Reason != listenerStatusOld[i].Conditions[j].Reason { | ||
| return false | ||
| } | ||
| if listenerStatus[i].Conditions[j].Message != listenerStatusOld[i].Conditions[j].Message { | ||
| return false | ||
| } | ||
| if listenerStatus[i].Conditions[j].ObservedGeneration != listenerStatusOld[i].Conditions[j].ObservedGeneration { | ||
| return false | ||
| } | ||
| } | ||
| } | ||
| return true | ||
| } | ||
|
|
||
| func compareSupportedKinds(kinds1, kinds2 []gwv1.RouteGroupKind) bool { | ||
| if len(kinds1) != len(kinds2) { | ||
| return false | ||
| } | ||
|
|
||
| kindMap := make(map[string]int) | ||
| for _, kind := range kinds1 { | ||
| key := fmt.Sprintf("%s/%s", *kind.Group, kind.Kind) | ||
| kindMap[key]++ | ||
| } | ||
|
|
||
| for _, kind := range kinds2 { | ||
| key := fmt.Sprintf("%s/%s", *kind.Group, kind.Kind) | ||
| if kindMap[key] == 0 { | ||
| return false | ||
| } | ||
| kindMap[key]-- | ||
| } | ||
|
|
||
| return true | ||
| } |
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