istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pkg/config/analysis/legacy/util/kuberesource/resources.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 kuberesource
    16  
    17  import (
    18  	"fmt"
    19  
    20  	"istio.io/istio/pkg/config"
    21  	"istio.io/istio/pkg/config/schema/collection"
    22  	"istio.io/istio/pkg/config/schema/collections"
    23  	"istio.io/istio/pkg/config/schema/resource"
    24  )
    25  
    26  func ConvertInputsToSchemas(inputs []config.GroupVersionKind) collection.Schemas {
    27  	resultBuilder := collection.NewSchemasBuilder()
    28  	for _, gv := range inputs {
    29  		s, f := collections.All.FindByGroupVersionKind(gv)
    30  		if !f {
    31  			continue
    32  		}
    33  		_ = resultBuilder.Add(s)
    34  	}
    35  
    36  	return resultBuilder.Build()
    37  }
    38  
    39  func DefaultExcludedSchemas() collection.Schemas {
    40  	resultBuilder := collection.NewSchemasBuilder()
    41  	for _, r := range collections.Kube.All() {
    42  		if IsDefaultExcluded(r) {
    43  			_ = resultBuilder.Add(r)
    44  		}
    45  	}
    46  
    47  	return resultBuilder.Build()
    48  }
    49  
    50  func DefaultRemoteClusterExcludedSchemas() collection.Schemas {
    51  	resultBuilder := collection.NewSchemasBuilder()
    52  	// Pods are the most common resource type exists in the remote cluster.
    53  	_ = resultBuilder.Add(collections.Deployment)
    54  	// We don't need to analyze injection config in the multi-cluster scenario.
    55  	_ = resultBuilder.Add(collections.ConfigMap)
    56  	_ = resultBuilder.Add(collections.ValidatingWebhookConfiguration)
    57  	_ = resultBuilder.Add(collections.MutatingWebhookConfiguration)
    58  	return resultBuilder.Build()
    59  }
    60  
    61  // the following code minimally duplicates logic from galley/pkg/config/source/kube/rt/known.go
    62  // without propagating the many dependencies it comes with.
    63  
    64  var knownTypes = map[string]struct{}{
    65  	asTypesKey("", "Service"):   {},
    66  	asTypesKey("", "Namespace"): {},
    67  	asTypesKey("", "Node"):      {},
    68  	asTypesKey("", "Pod"):       {},
    69  	asTypesKey("", "Secret"):    {},
    70  }
    71  
    72  func asTypesKey(group, kind string) string {
    73  	if group == "" {
    74  		return kind
    75  	}
    76  	return fmt.Sprintf("%s/%s", group, kind)
    77  }
    78  
    79  func IsDefaultExcluded(res resource.Schema) bool {
    80  	key := asTypesKey(res.Group(), res.Kind())
    81  	_, ok := knownTypes[key]
    82  	return ok
    83  }