| bytes | Package bytes implements functions for the manipulation of byte slices. |
| crypto/x509 | Package x509 implements a subset of the X.509 standard. |
| encoding/pem | Package pem implements the PEM data encoding, which originated in Privacy Enhanced Mail. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/pkg/errors | Package errors provides simple error handling primitives. |
| k8s.io/api/core/v1 | Package v1 is the v1 version of the core API. |
| k8s.io/apimachinery/pkg/apis/meta/v1 | Package v1 contains API types that are common to all versions. |
| k8s.io/apimachinery/pkg/util/wait | Package wait provides tools for polling or listening for changes to a condition. |
| k8s.io/client-go/tools/clientcmd | Package clientcmd provides one stop shopping for building a working client from a fixed config, from a .kubeconfig file, from command line flags, or from any merged combination. |
| k8s.io/client-go/tools/clientcmd/api | |
| k8s.io/cluster-bootstrap/token/api | Package api (k8s.io/cluster-bootstrap/token/api) contains constants and types needed for bootstrap tokens as maintained by the BootstrapSigner and TokenCleaner controllers (in k8s.io/kubernetes/pkg/controller/bootstrap) |
| k8s.io/klog | Package klog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup. |
| k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm | Package kubeadm is the package that contains the libraries that drive the kubeadm binary. |
| k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta1 | |
| k8s.io/kubernetes/cmd/kubeadm/app/constants | |
| k8s.io/kubernetes/cmd/kubeadm/app/util/kubeconfig | |
| k8s.io/kubernetes/cmd/kubeadm/app/util/pubkeypin | Package pubkeypin provides primitives for x509 public key pinning in the style of RFC7469. |
| k8s.io/kubernetes/pkg/controller/bootstrap | Package bootstrap provides automatic processes necessary for bootstraping. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |