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43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
/*
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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 utils
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import (
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"fmt"
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"time"
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"k8s.io/kubernetes/pkg/kubectl"
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)
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const (
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// Parameters for retrying updates/waits with linear backoff.
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// TODO: Try to move this to exponential backoff by modifying kubectl.Scale().
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updateRetryInterval = 5 * time.Second
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updateRetryTimeout = 1 * time.Minute
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waitRetryInterval = 5 * time.Second
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waitRetryTImeout = 5 * time.Minute
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)
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func ScaleResourceWithRetries(scaler kubectl.Scaler, namespace, name string, size uint) error {
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waitForScale := kubectl.NewRetryParams(updateRetryInterval, updateRetryTimeout)
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waitForReplicas := kubectl.NewRetryParams(waitRetryInterval, waitRetryTImeout)
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if err := scaler.Scale(namespace, name, size, nil, waitForScale, waitForReplicas); err != nil {
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return fmt.Errorf("Error while scaling %s to %d replicas: %v", name, size, err)
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}
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return nil
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}
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