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Add an example manifest converter for conversion of singleton lists t…
…o embedded object Signed-off-by: Sergen Yalçın <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| // SPDX-FileCopyrightText: 2024 The Crossplane Authors <https://crossplane.io> | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
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| package config | ||
|
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| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "os" | ||
| "path/filepath" | ||
| "sigs.k8s.io/yaml" | ||
| "strings" | ||
|
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| "github.com/pkg/errors" | ||
| "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" | ||
| k8sschema "k8s.io/apimachinery/pkg/runtime/schema" | ||
| kyaml "k8s.io/apimachinery/pkg/util/yaml" | ||
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| "github.com/crossplane/upjet/pkg/config/conversion" | ||
| ) | ||
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| func ConvertSingletonListToEmbeddedObject(pc *Provider, startPath string) error { | ||
| resourceRegistry := prepareResourceRegistry(pc) | ||
| err := filepath.Walk(startPath, func(path string, info os.FileInfo, err error) error { | ||
| if err != nil { | ||
| return errors.Wrap(err, "walk failed") | ||
| } | ||
|
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| var convertedFileContent string | ||
| if !info.IsDir() && strings.HasSuffix(info.Name(), ".yaml") { | ||
| log.Printf("Converting: %s\n", path) | ||
| content, err := os.ReadFile(path) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to read file") | ||
| } | ||
|
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| examples, err := decodeExamples(string(content)) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to decode examples") | ||
| } | ||
|
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| rootResource := resourceRegistry[fmt.Sprintf("%s/%s", examples[0].GroupVersionKind().Kind, examples[0].GroupVersionKind().Group)] | ||
| if rootResource == nil { | ||
| return nil | ||
| } | ||
|
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| newPath := strings.Replace(path, examples[0].GroupVersionKind().Version, rootResource.Version, -1) | ||
| if path == newPath { | ||
| return nil | ||
| } | ||
| annotationValue := strings.ToLower(fmt.Sprintf("%s/%s/%s", rootResource.ShortGroup, rootResource.Version, rootResource.Kind)) | ||
| for _, e := range examples { | ||
| if resource, ok := resourceRegistry[fmt.Sprintf("%s/%s", e.GroupVersionKind().Kind, e.GroupVersionKind().Group)]; ok { | ||
| conversionPaths := resource.CRDListConversionPaths() | ||
| if conversionPaths != nil && e.GroupVersionKind().Version != resource.Version { | ||
| for i, cp := range conversionPaths { | ||
| conversionPaths[i] = "spec.forProvider." + cp | ||
| } | ||
| converted, err := conversion.Convert(e.Object, conversionPaths, conversion.ToEmbeddedObject) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to convert example to embedded object") | ||
| } | ||
| e.Object = converted | ||
| e.SetGroupVersionKind(k8sschema.GroupVersionKind{ | ||
| Group: e.GroupVersionKind().Group, | ||
| Version: resource.Version, | ||
| Kind: e.GetKind(), | ||
| }) | ||
| } | ||
| annotations := e.GetAnnotations() | ||
| annotations["meta.upbound.io/example-id"] = annotationValue | ||
| e.SetAnnotations(annotations) | ||
| } | ||
| } | ||
| convertedFileContent = "# SPDX-FileCopyrightText: 2024 The Crossplane Authors <https://crossplane.io>\n#\n# SPDX-License-Identifier: CC0-1.0\n\n" | ||
| for i, e := range examples { | ||
| var convertedData []byte | ||
| convertedData, err := yaml.Marshal(&e) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to marshal example to yaml") | ||
| } | ||
| if i == len(examples)-1 { | ||
| convertedFileContent += string(convertedData) | ||
| } else { | ||
| convertedFileContent += string(convertedData) + "\n---\n\n" | ||
| } | ||
| } | ||
| dir := filepath.Dir(newPath) | ||
|
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| // Create all necessary directories if they do not exist | ||
| err = os.MkdirAll(dir, os.ModePerm) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to create directory") | ||
| } | ||
| f, err := os.Create(newPath) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to create file") | ||
| } | ||
| if _, err := f.Write([]byte(convertedFileContent)); err != nil { | ||
| return errors.Wrap(err, "failed to write to file") | ||
| } | ||
| log.Printf("Converted: %s\n", path) | ||
| } | ||
| return nil | ||
| }) | ||
| if err != nil { | ||
| log.Printf("Error walking the path %q: %v\n", startPath, err) | ||
| } | ||
| return nil | ||
| } | ||
|
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| func prepareResourceRegistry(pc *Provider) map[string]*Resource { | ||
| reg := map[string]*Resource{} | ||
| for _, r := range pc.Resources { | ||
| reg[fmt.Sprintf("%s/%s.%s", r.Kind, r.ShortGroup, pc.RootGroup)] = r | ||
| } | ||
| return reg | ||
| } | ||
|
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| func decodeExamples(content string) ([]*unstructured.Unstructured, error) { | ||
| var manifests []*unstructured.Unstructured | ||
| decoder := kyaml.NewYAMLOrJSONDecoder(bytes.NewBufferString(content), 1024) | ||
| for { | ||
| u := &unstructured.Unstructured{} | ||
| if err := decoder.Decode(&u); err != nil { | ||
| if errors.Is(err, io.EOF) { | ||
| break | ||
| } | ||
| return nil, errors.Wrap(err, "cannot decode manifest") | ||
| } | ||
| if u != nil { | ||
| manifests = append(manifests, u) | ||
| } | ||
| } | ||
| return manifests, nil | ||
| } |
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