mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-05-21 14:32:03 +00:00
119 lines
3.5 KiB
Go
119 lines
3.5 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kunstruct
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import (
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"bytes"
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"fmt"
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"io"
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"strings"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/util/yaml"
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"sigs.k8s.io/kustomize/k8sdeps/configmapandsecret"
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"sigs.k8s.io/kustomize/pkg/ifc"
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"sigs.k8s.io/kustomize/pkg/types"
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)
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// KunstructuredFactoryImpl hides construction using apimachinery types.
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type KunstructuredFactoryImpl struct {
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cmFactory *configmapandsecret.ConfigMapFactory
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secretFactory *configmapandsecret.SecretFactory
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}
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var _ ifc.KunstructuredFactory = &KunstructuredFactoryImpl{}
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// NewKunstructuredFactoryImpl returns a factory.
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func NewKunstructuredFactoryImpl() ifc.KunstructuredFactory {
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return &KunstructuredFactoryImpl{}
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}
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// SliceFromBytes returns a slice of Kunstructured.
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func (kf *KunstructuredFactoryImpl) SliceFromBytes(
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in []byte) ([]ifc.Kunstructured, error) {
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decoder := yaml.NewYAMLOrJSONDecoder(bytes.NewReader(in), 1024)
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var result []ifc.Kunstructured
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var err error
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for err == nil || isEmptyYamlError(err) {
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var out unstructured.Unstructured
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err = decoder.Decode(&out)
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if err == nil {
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if len(out.Object) == 0 {
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continue
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}
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err = kf.validate(out)
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if err != nil {
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return nil, err
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}
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result = append(result, &UnstructAdapter{Unstructured: out})
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}
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}
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if err != io.EOF {
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return nil, err
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}
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return result, nil
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}
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func isEmptyYamlError(err error) bool {
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return strings.Contains(err.Error(), "is missing in 'null'")
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}
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// FromMap returns an instance of Kunstructured.
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func (kf *KunstructuredFactoryImpl) FromMap(
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m map[string]interface{}) ifc.Kunstructured {
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return &UnstructAdapter{Unstructured: unstructured.Unstructured{Object: m}}
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}
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// MakeConfigMap returns an instance of Kunstructured for ConfigMap
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func (kf *KunstructuredFactoryImpl) MakeConfigMap(args *types.ConfigMapArgs, options *types.GeneratorOptions) (ifc.Kunstructured, error) {
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cm, err := kf.cmFactory.MakeConfigMap(args, options)
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if err != nil {
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return nil, err
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}
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return NewKunstructuredFromObject(cm)
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}
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// MakeSecret returns an instance of Kunstructured for Secret
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func (kf *KunstructuredFactoryImpl) MakeSecret(args *types.SecretArgs, options *types.GeneratorOptions) (ifc.Kunstructured, error) {
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sec, err := kf.secretFactory.MakeSecret(args, options)
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if err != nil {
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return nil, err
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}
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return NewKunstructuredFromObject(sec)
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}
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// Set sets loader
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func (kf *KunstructuredFactoryImpl) Set(ldr ifc.Loader) {
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kf.cmFactory = configmapandsecret.NewConfigMapFactory(ldr)
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kf.secretFactory = configmapandsecret.NewSecretFactory(ldr)
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}
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// validate validates that u has kind and name
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// except for kind `List`, which doesn't require a name
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func (kf *KunstructuredFactoryImpl) validate(u unstructured.Unstructured) error {
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kind := u.GetKind()
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if kind == "" {
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return fmt.Errorf("missing kind in object %v", u)
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} else if strings.HasSuffix(kind, "List") {
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return nil
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}
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if u.GetName() == "" {
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return fmt.Errorf("missing metadata.name in object %v", u)
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}
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return nil
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}
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