| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| flag | Package flag implements command-line flag parsing. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| io | Package io provides basic interfaces to I/O primitives. |
| k8s.io/api/core/v1 | Package v1 is the v1 version of the core API. |
| k8s.io/apimachinery/pkg/api/errors | Package errors provides detailed error types for api field validation. |
| k8s.io/apiserver/pkg/admission | |
| k8s.io/kubernetes/pkg/apis/core | Package core contains the latest (or "internal") version of the Kubernetes API objects. |