func masterExec(cmd string) {
result, err := framework.SSH(cmd, framework.GetMasterHost()+":22", framework.TestContext.Provider)
Expect(err).NotTo(HaveOccurred())
if result.Code != 0 {
framework.LogSSHResult(result)
framework.Failf("master exec command returned non-zero")
}
}
// kubeletCommand performs `start`, `restart`, or `stop` on the kubelet running on the node of the target pod.
// Allowed kubeltOps are `kStart`, `kStop`, and `kRestart`
func kubeletCommand(kOp kubeletOpt, c clientset.Interface, pod *v1.Pod) {
nodeIP, err := framework.GetHostExternalAddress(c, pod)
Expect(err).NotTo(HaveOccurred())
nodeIP = nodeIP + ":22"
sshResult, err := framework.SSH("sudo /etc/init.d/kubelet "+string(kOp), nodeIP, framework.TestContext.Provider)
Expect(err).NotTo(HaveOccurred())
framework.LogSSHResult(sshResult)
// On restart, waiting for node NotReady prevents a race condition where the node takes a few moments to leave the
// Ready state which in turn short circuits WaitForNodeToBeReady()
if kOp == kStop || kOp == kRestart {
if ok := framework.WaitForNodeToBeNotReady(c, pod.Spec.NodeName, NodeStateTimeout); !ok {
framework.Failf("Node %s failed to enter NotReady state", pod.Spec.NodeName)
}
}
if kOp == kStart || kOp == kRestart {
if ok := framework.WaitForNodeToBeReady(c, pod.Spec.NodeName, NodeStateTimeout); !ok {
framework.Failf("Node %s failed to enter Ready state", pod.Spec.NodeName)
}
}
}