Previously this code used http.Get and failed to read/close resp.Body, which prevented network connection reuse, leaking fds. Now we use http.Head instead, because its response always has a nil Body, so we don't have to worry about read/close.
PLEASE NOTE: This document applies to the HEAD of the source tree
If you are using a released version of Kubernetes, you should refer to the docs that go with that version.
The latest release of this document can be found [here](http://releases.k8s.io/release-1.1/docs/devel/collab.md).Documentation for other releases can be found at releases.k8s.io.
See e2e-node-tests