66 lines
2.2 KiB
Go
66 lines
2.2 KiB
Go
/*
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Copyright the Velero contributors.
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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 client
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import (
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"context"
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"math"
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"time"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/client-go/util/retry"
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kbclient "sigs.k8s.io/controller-runtime/pkg/client"
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)
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func CreateRetryGenerateName(client kbclient.Client, ctx context.Context, obj kbclient.Object) error {
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retryCreateFn := func() error {
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// needed to ensure that the name from the failed create isn't left on the object between retries
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obj.SetName("")
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return client.Create(ctx, obj, &kbclient.CreateOptions{})
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}
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if obj.GetGenerateName() != "" && obj.GetName() == "" {
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return retry.OnError(retry.DefaultRetry, apierrors.IsAlreadyExists, retryCreateFn)
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} else {
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return client.Create(ctx, obj, &kbclient.CreateOptions{})
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}
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}
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// CapBackoff provides a backoff with a set backoff cap
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func CapBackoff(cap time.Duration) wait.Backoff {
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if cap < 0 {
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cap = 0
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}
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return wait.Backoff{
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Steps: math.MaxInt,
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Duration: 10 * time.Millisecond,
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Cap: cap,
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Factor: retry.DefaultBackoff.Factor,
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Jitter: retry.DefaultBackoff.Jitter,
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}
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}
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// RetryOnRetriableMaxBackOff accepts a patch function param, retrying when the provided retriable function returns true.
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func RetryOnRetriableMaxBackOff(maxDuration time.Duration, fn func() error, retriable func(error) bool) error {
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return retry.OnError(CapBackoff(maxDuration), func(err error) bool { return retriable(err) }, fn)
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}
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// RetryOnErrorMaxBackOff accepts a patch function param, retrying when the error is not nil.
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func RetryOnErrorMaxBackOff(maxDuration time.Duration, fn func() error) error {
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return RetryOnRetriableMaxBackOff(maxDuration, fn, func(err error) bool { return err != nil })
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}
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