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Merge pull request #43226 from deads2k/controller-01-health

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Automatic merge from submit-queue (batch tested with PRs 43144, 42671, 43226, 43314, 43361)

don't start controllers against unhealthy master

Operating against an unhealthy apiserver is unpredictable.  Some clients like `kubectl` need to be best effort in this regard so that you can debug broken apiservers.  Controllers shouldn't run against unhealthy masters.
This commit is contained in:
Kubernetes Submit Queue 2017-03-25 19:10:25 -07:00 committed by GitHub
commit 8ff822b764
1 changed files with 7 additions and 0 deletions
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7
cmd/kube-controller-manager/app/controllermanager.go
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@ -331,6 +331,13 @@ func getAvailableResources(clientBuilder controller.ControllerClientBuilder) (ma
return false, nil return false, nil
} }
healthStatus := 0
client.Discovery().RESTClient().Get().AbsPath("/healthz").Do().StatusCode(&healthStatus)
if healthStatus != http.StatusOK {
glog.Errorf("Server isn't healthy yet. Waiting a little while.")
return false, nil
}
discoveryClient = client.Discovery() discoveryClient = client.Discovery()
return true, nil return true, nil
}) })