I'm writing a custom controller with Kubebuilder framework, in one method, I got an object of type runtime.Object, I know I should be able to convert it to the specific type say MyCustomResource, but I cannot figure out how from the doc.
It should be as easy as this:
func convertToMyCustomResource(obj runtime.Object) *v1alpha1.MyCustomResource {
myobj := obj.(*v1alpha1.MyCustomResource)
return myobj
}
If this produces an error (e.g. Impossible type assertion), make sure MyCustomResource satisfies the runtime.Object interface; i.e.
Run the controller-gen tool to generate the DeepCopyObject method
go run vendor/sigs.k8s.io/controller-tools/cmd/controller-gen/main.go paths=./api/... objectAdd the "k8s.io/apimachinery/pkg/apis/meta/v1".TypeMeta field to the MyCustomResource struct, which implements the GetObjectKind method.
import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
type MyCustomResource struct {
metav1.TypeMeta `json:",inline"`
// ... other stuff
}