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")
}
}
// TODO marekbiskup 2015-06-11: merge the ssh code into pkg/util/ssh.go after
// kubernetes v1.0 is released. In particular the code of sshExec.
func getMasterSSHClient() (*ssh.Client, error) {
// Get a signer for the provider.
signer, err := framework.GetSigner(framework.TestContext.Provider)
if err != nil {
return nil, fmt.Errorf("error getting signer for provider %s: '%v'", framework.TestContext.Provider, err)
}
config := &ssh.ClientConfig{
User: os.Getenv("USER"),
Auth: []ssh.AuthMethod{ssh.PublicKeys(signer)},
}
host := framework.GetMasterHost() + ":22"
client, err := ssh.Dial("tcp", host, config)
if err != nil {
return nil, fmt.Errorf("error getting SSH client to host %s: '%v'", host, err)
}
return client, err
}
},
},
)
go controller.Run(stopCh)
})
AfterEach(func() {
close(stopCh)
})
It("Controller Manager should not create/delete replicas across restart", func() {
// Requires master ssh access.
framework.SkipUnlessProviderIs("gce", "aws")
restarter := NewRestartConfig(
framework.GetMasterHost(), "kube-controller", ports.ControllerManagerPort, restartPollInterval, restartTimeout)
restarter.restart()
// The intent is to ensure the replication controller manager has observed and reported status of
// the replication controller at least once since the manager restarted, so that we can determine
// that it had the opportunity to create/delete pods, if it were going to do so. Scaling the RC
// to the same size achieves this, because the scale operation advances the RC's sequence number
// and awaits it to be observed and reported back in the RC's status.
framework.ScaleRC(f.Client, f.ClientSet, ns, rcName, numPods, true)
// Only check the keys, the pods can be different if the kubelet updated it.
// TODO: Can it really?
existingKeys := sets.NewString()
newKeys := sets.NewString()
for _, k := range existingPods.ListKeys() {
existingKeys.Insert(k)