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55 lines
2 KiB
Go
55 lines
2 KiB
Go
package cleanup
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import (
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"github.com/go-logr/logr"
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kyverno "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
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dclient "github.com/nirmata/kyverno/pkg/dclient"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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)
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func (c *Controller) processGR(gr kyverno.GenerateRequest) error {
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logger := c.log.WithValues("kind", gr.Kind, "namespace", gr.Namespace, "name", gr.Name)
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// 1- Corresponding policy has been deleted
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// then we dont delete the generated resources
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// 2- The trigger resource is deleted, then delete the generated resources
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if !ownerResourceExists(logger, c.client, gr) {
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if err := deleteGeneratedResources(logger, c.client, gr); err != nil {
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return err
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}
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// - trigger-resource is deleted
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// - generated-resources are deleted
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// - > Now delete the GenerateRequest CR
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return c.control.Delete(gr.Name)
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}
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return nil
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}
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func ownerResourceExists(log logr.Logger, client *dclient.Client, gr kyverno.GenerateRequest) bool {
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_, err := client.GetResource(gr.Spec.Resource.Kind, gr.Spec.Resource.Namespace, gr.Spec.Resource.Name)
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// trigger resources has been deleted
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if apierrors.IsNotFound(err) {
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return false
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}
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if err != nil {
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log.Error(err, "failed to get resource", "genKind", gr.Spec.Resource.Kind, "genNamespace", gr.Spec.Resource.Namespace, "genName", gr.Spec.Resource.Name)
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}
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// if there was an error while querying the resources we dont delete the generated resources
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// but expect the deletion in next reconciliation loop
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return true
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}
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func deleteGeneratedResources(log logr.Logger, client *dclient.Client, gr kyverno.GenerateRequest) error {
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for _, genResource := range gr.Status.GeneratedResources {
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err := client.DeleteResource(genResource.Kind, genResource.Namespace, genResource.Name, false)
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if apierrors.IsNotFound(err) {
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log.Error(err, "resource not foundl will not delete", "genKind", gr.Spec.Resource.Kind, "genNamespace", gr.Spec.Resource.Namespace, "genName", gr.Spec.Resource.Name)
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continue
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}
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if err != nil {
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return err
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}
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}
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return nil
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}
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