Is this a BUG REPORT or FEATURE REQUEST?:

Uncomment only one, leave it on its own line:

/kind bug

/kind feature

What happened:

Calling kubectl run with overrides injecting environment from configmap doesn't inject environment

What you expected to happen:

I expect to see environment variables from the config map in the process

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

kubectl create configmap my-config --from-literal=FOO=BAR
kubectl run -i --rm --tty ubuntu --overrides='
{
  "spec": {
    "template": {
      "spec": {
        "containers": [
          {
            "name": "app",
            "image": "ubuntu",
            "envFrom": [
              {
                "configMapRef": {
                  "name": "my-config"
                }
              }
            ]
          }
        ]
      }
    }
  }
}
'  --image=ubuntu --restart=Never -- bash -c "sleep 3 && env"

Anything else we need to know?:

Environment:

• Kubernetes version (use kubectl version):

Client Version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.2", GitCommit:"477efc3cbe6a7effca06bd1452fa356e2201e1ee", GitTreeState:"clean", BuildDate:"2017-04-19T22:51:55Z", GoVersion:"go1.8.1", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.1", GitCommit:"b0b7a323cc5a4a2019b2e9520c21c7830b7f708e", GitTreeState:"clean", BuildDate:"2017-04-03T20:33:27Z", GoVersion:"go1.7.5", Compiler:"gc", Platform:"linux/amd64"}

• Cloud provider or hardware configuration**: AWS/kops
• OS (e.g. from /etc/os-release): OSX
• Kernel (e.g. uname -a):

Darwin WLT041147 16.6.0 Darwin Kernel Version 16.6.0: Fri Apr 14 16:21:16 PDT 2017; root:xnu-3789.60.24~6/RELEASE_X86_64 x86_64

• Install tools:
• Others: