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Merge pull request #78778 from hbagdi/fix/nil-functions

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fix nil function invocation in client-go/tools/leaderelection
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Kubernetes Prow Robot 2019-07-30 10:08:52 -07:00 committed by GitHub
commit 758af11cac
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1 changed files with 6 additions and 0 deletions
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6
staging/src/k8s.io/client-go/tools/leaderelection/leaderelection.go
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@ -89,6 +89,12 @@ func NewLeaderElector(lec LeaderElectionConfig) (*LeaderElector, error) {
if lec.RetryPeriod < 1 {
return nil, fmt.Errorf("retryPeriod must be greater than zero")
}
if lec.Callbacks.OnStartedLeading == nil {
return nil, fmt.Errorf("OnStartedLeading callback must not be nil")
}
if lec.Callbacks.OnStoppedLeading == nil {
return nil, fmt.Errorf("OnStoppedLeading callback must not be nil")
}
if lec.Lock == nil {
return nil, fmt.Errorf("Lock must not be nil.")