Do not treat closed network connection as EOF.

If the connection goes away, don't treat as EOF.  Let it error as
expected so we can get a new connection.

Merge pull request kubernetes#9 from DataDog/lbernail/optimize-binds

Optimize binds

Merge pull request kubernetes#8 from DataDog/lbernail/test-node-addre…

…ss-fix

Backport fix from kubernetes#79444

Kubernetes alpha release v1.18.0-alpha.5

Kubernetes alpha release v1.18.0-alpha.4 (manual)

Kubernetes beta release v1.17.4-beta.0

Kubernetes official release v1.17.3

Kubernetes beta release v1.16.8-beta.0

Kubernetes official release v1.16.7