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vendor updates
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55
vendor/k8s.io/kubernetes/cmd/controller-manager/app/helper.go
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55
vendor/k8s.io/kubernetes/cmd/controller-manager/app/helper.go
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/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package app
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import (
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"fmt"
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"net/http"
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"time"
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"github.com/golang/glog"
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"k8s.io/apimachinery/pkg/util/wait"
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clientset "k8s.io/client-go/kubernetes"
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)
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// WaitForAPIServer waits for the API Server's /healthz endpoint to report "ok" with timeout.
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func WaitForAPIServer(client clientset.Interface, timeout time.Duration) error {
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var lastErr error
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err := wait.PollImmediate(time.Second, timeout, func() (bool, error) {
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healthStatus := 0
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result := client.Discovery().RESTClient().Get().AbsPath("/healthz").Do().StatusCode(&healthStatus)
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if result.Error() != nil {
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lastErr = fmt.Errorf("failed to get apiserver /healthz status: %v", result.Error())
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return false, nil
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}
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if healthStatus != http.StatusOK {
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content, _ := result.Raw()
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lastErr = fmt.Errorf("APIServer isn't healthy: %v", string(content))
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glog.Warningf("APIServer isn't healthy yet: %v. Waiting a little while.", string(content))
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return false, nil
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}
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return true, nil
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})
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if err != nil {
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return fmt.Errorf("%v: %v", err, lastErr)
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}
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return nil
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}
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