Make swap check as an error

Based on amount of support issues where warning about enabled swap not noticed or ignored, it will be better to make this check as an error.

Make swap check as an error
2a1496c2 · Alexander Kanevskiy · 065e4508 · 2a1496c2
Commit 2a1496c2 authored Nov 09, 2017 by Alexander Kanevskiy
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checks.go cmd/kubeadm/app/preflight/checks.go +1 -1

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--- a/cmd/kubeadm/app/preflight/checks.go
+++ b/cmd/kubeadm/app/preflight/checks.go
@@ -545,7 +545,7 @@ func (swc SwapCheck) Check() (warnings, errors []error) {
 	}

 	if len(buf) > 1 {
-		return []error{fmt.Errorf("running with swap on is not supported. Please disable swap or set kubelet's --fail-swap-on flag to false")}, nil
+		return nil, []error{fmt.Errorf("running with swap on is not supported. Please disable swap")}
 	}

 	return nil, nil