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delete.go
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delete.go
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package namespace
import (
"context"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
apismetav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/giantswarm/microerror"
"github.com/giantswarm/operatorkit/v4/pkg/resource/crud"
)
func (r *Resource) ApplyDeleteChange(ctx context.Context, obj, deleteChange interface{}) error {
namespaceToDelete, err := toNamespace(deleteChange)
if err != nil {
return microerror.Mask(err)
}
if namespaceToDelete != nil {
r.logger.Debugf(ctx, "deleting Kubernetes namespace")
err = r.k8sClient.CoreV1().Namespaces().Delete(ctx, namespaceToDelete.Name, apismetav1.DeleteOptions{})
if apierrors.IsNotFound(err) {
// fall through
} else if err != nil {
return microerror.Mask(err)
}
r.logger.Debugf(ctx, "deleting Kubernetes namespace: deleted")
} else {
r.logger.Debugf(ctx, "deleting Kubernetes namespace: already deleted")
}
return nil
}
func (r *Resource) NewDeletePatch(ctx context.Context, obj, currentState, desiredState interface{}) (*crud.Patch, error) {
delete, err := r.newDeleteChange(ctx, currentState, desiredState)
if err != nil {
return nil, microerror.Mask(err)
}
patch := crud.NewPatch()
patch.SetDeleteChange(delete)
return patch, nil
}
func (r *Resource) newDeleteChange(ctx context.Context, currentState, desiredState interface{}) (interface{}, error) {
currentNamespace, err := toNamespace(currentState)
if err != nil {
return nil, microerror.Mask(err)
}
desiredNamespace, err := toNamespace(desiredState)
if err != nil {
return nil, microerror.Mask(err)
}
r.logger.Debugf(ctx, "finding out if the namespace has to be deleted")
var namespaceToDelete *corev1.Namespace
if currentNamespace != nil {
namespaceToDelete = desiredNamespace
}
r.logger.Debugf(ctx, "found out if the namespace has to be deleted")
return namespaceToDelete, nil
}