generated from kyma-project/template-repository
/
retry.go
62 lines (53 loc) · 1.52 KB
/
retry.go
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package utils
import (
goerrors "errors"
"github.com/sirupsen/logrus"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/util/retry"
)
var (
DefaultBackoff = retry.DefaultBackoff
DefaultRetry = retry.DefaultRetry
ErrInvalidFunc = goerrors.New("invalid function")
)
func fnWithIgnore(fn func() error, ignoreErr func(error) bool, log *logrus.Entry) func() error {
return func() error {
if fn == nil {
return ErrInvalidFunc
}
err := fn()
if ignoreErr == nil {
return err
}
if ignoreErr(err) {
log.Infof("ignoring: %s", err)
return nil
}
return err
}
}
func errorFn(log *logrus.Entry) func(error) bool {
return func(err error) bool {
if errors.IsTimeout(err) ||
errors.IsServerTimeout(err) ||
errors.IsTooManyRequests(err) ||
errors.IsConflict(err) {
log.Infof("retrying due to: %s", err)
return true
}
return false
}
}
func WithIgnoreOnNotFound(backoff wait.Backoff, fn func() error, log *logrus.Entry) error {
return retry.OnError(backoff, errorFn(log), fnWithIgnore(fn, errors.IsNotFound, log))
}
func WithIgnoreOnConflict(backoff wait.Backoff, fn func() error, log *logrus.Entry) error {
return retry.OnError(backoff, errorFn(log), fnWithIgnore(fn, errors.IsConflict, log))
}
func OnTimeout(backoff wait.Backoff, fn func() error, log *logrus.Entry) error {
return retry.OnError(backoff, errorFn(log), fn)
}
func RetryOnConflict(backoff wait.Backoff, fn func() error, log *logrus.Entry) error {
return retry.OnError(backoff, errorFn(log), fn)
}