istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pilot/pkg/serviceregistry/serviceentry/namespace_handler.go (about)

     1  // Copyright Istio Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package serviceentry
    16  
    17  import (
    18  	"istio.io/istio/pilot/pkg/model"
    19  	"istio.io/istio/pkg/config/schema/gvk"
    20  )
    21  
    22  // NamespaceDiscoveryHandler is to handle namespace selected or deselected because of discoverySelectors change,
    23  // rather than namespace add/update/delete event triggered from namespace informer.
    24  func (s *Controller) NamespaceDiscoveryHandler(namespace string, event model.Event) {
    25  	if event == model.EventDelete {
    26  		log.Debugf("Handle event namespace %s deselected", namespace)
    27  	} else {
    28  		log.Debugf("Handle event namespace %s selected", namespace)
    29  	}
    30  
    31  	cfgs := s.store.List(gvk.WorkloadEntry, namespace)
    32  	for _, cfg := range cfgs {
    33  		s.workloadEntryHandler(cfg, cfg, event)
    34  	}
    35  
    36  	if !s.workloadEntryController {
    37  		cfgs := s.store.List(gvk.ServiceEntry, namespace)
    38  		for _, cfg := range cfgs {
    39  			s.serviceEntryHandler(cfg, cfg, event)
    40  		}
    41  	}
    42  }