Imports
- github.com/PuerkitoBio/purell
- github.com/blang/semver
- github.com/pkg/errors
- k8s.io/apimachinery/pkg/util/net
- k8s.io/apimachinery/pkg/util/sets
- k8s.io/apimachinery/pkg/util/version
- k8s.io/klog
- k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm
- k8s.io/kubernetes/cmd/kubeadm/app/constants
- k8s.io/kubernetes/cmd/kubeadm/app/images
- k8s.io/kubernetes/cmd/kubeadm/app/util
- k8s.io/kubernetes/cmd/kubeadm/app/util/runtime
- k8s.io/kubernetes/cmd/kubeadm/app/util/system
- k8s.io/kubernetes/pkg/master/ports
- k8s.io/kubernetes/pkg/registry/core/service/ipallocator
- k8s.io/kubernetes/pkg/util/initsystem
- k8s.io/kubernetes/pkg/util/ipvs
- k8s.io/kubernetes/pkg/version
- k8s.io/utils/exec