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96 lines
2.4 KiB
96 lines
2.4 KiB
/*
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Copyright The Helm 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 rules // import "helm.sh/helm/v3/pkg/lint/rules"
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import (
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"fmt"
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"strconv"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apiserver/pkg/endpoints/deprecation"
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kscheme "k8s.io/client-go/kubernetes/scheme"
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)
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var (
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// This should be set in the Makefile based on the version of client-go being imported.
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// These constants will be overwritten with LDFLAGS. The version components must be
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// strings in order for LDFLAGS to set them.
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k8sVersionMajor = "1"
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k8sVersionMinor = "20"
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)
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// deprecatedAPIError indicates than an API is deprecated in Kubernetes
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type deprecatedAPIError struct {
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Deprecated string
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Message string
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}
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func (e deprecatedAPIError) Error() string {
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msg := e.Message
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return msg
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}
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func validateNoDeprecations(resource *K8sYamlStruct) error {
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// if `resource` does not have an APIVersion or Kind, we cannot test it for deprecation
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if resource.APIVersion == "" {
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return nil
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}
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if resource.Kind == "" {
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return nil
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}
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runtimeObject, err := resourceToRuntimeObject(resource)
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if err != nil {
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// do not error for non-kubernetes resources
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if runtime.IsNotRegisteredError(err) {
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return nil
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}
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return err
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}
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maj, err := strconv.Atoi(k8sVersionMajor)
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if err != nil {
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return err
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}
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min, err := strconv.Atoi(k8sVersionMinor)
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if err != nil {
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return err
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}
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if !deprecation.IsDeprecated(runtimeObject, maj, min) {
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return nil
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}
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gvk := fmt.Sprintf("%s %s", resource.APIVersion, resource.Kind)
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return deprecatedAPIError{
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Deprecated: gvk,
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Message: deprecation.WarningMessage(runtimeObject),
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}
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}
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func resourceToRuntimeObject(resource *K8sYamlStruct) (runtime.Object, error) {
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scheme := runtime.NewScheme()
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kscheme.AddToScheme(scheme)
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gvk := schema.FromAPIVersionAndKind(resource.APIVersion, resource.Kind)
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out, err := scheme.New(gvk)
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if err != nil {
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return nil, err
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}
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out.GetObjectKind().SetGroupVersionKind(gvk)
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return out, nil
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}
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