/kind bug

What happened:

From a container running inside of a cluster:

# kubectl get po --request-timeout=11s
The connection to the server localhost:8080 was refused - did you specify the right host or port?

What you expected to happen:

# kubectl get po --request-timeout=11s
...long list of pods here...

How to reproduce it (as minimally and precisely as possible):

• Run a container with kubectl installed (I used an Ubuntu container)
• kubectl get po <- this works
• kubectl get po --request-timeout=11s <- this fails

Anything else we need to know?:

Looking through the logs -v=8, it looks like --request-timeout bypasses the part where it realizes that in-cluster mode is enabled.

Environment:

• Kubernetes version (use kubectl version): I tested v.1.6.3 through v1.7.1
• Cloud provider or hardware configuration**: Parallels hypervisor
• OS (e.g. from /etc/os-release):

NAME="Ubuntu"
VERSION="16.04.2 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.2 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

• Kernel (e.g. uname -a): Linux ubuntu 4.4.0-83-generic Move third_party code under third_party/src so it can be used in $GOPATH #106-Ubuntu SMP Mon Jun 26 17:54:43 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
• Install tools: kubeadm
• Others: