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e2e: add k8sVersionGreaterEquals() helper to check k8s versions

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Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos 2020-10-14 09:35:58 +02:00 committed by mergify[bot]
parent 5b537754a7
commit c4289f01e8
1 changed files with 24 additions and 0 deletions
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24
e2e/utils.go
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@ -568,3 +568,27 @@ func validatePVCClone(sourcePvcPath, clonePvcPath, clonePvcAppPath string, f *fr
wg.Wait()
validateRBDImageCount(f, 0)
}
// k8sVersionGreaterEquals checks the ServerVersion of the Kubernetes cluster
// and compares it to the major.minor version passed. In case the version of
// the cluster is equal or higher to major.minor, `true` is returned, `false`
// otherwise.
//
// If fetching the ServerVersion of the Kubernetes cluster fails, the calling
// test case is marked as `FAILED` and gets aborted.
//
// nolint:unparam // currently major is always 1, this can change in the future
func k8sVersionGreaterEquals(c kubernetes.Interface, major, minor int) bool {
v, err := c.Discovery().ServerVersion()
if err != nil {
e2elog.Failf("failed to get server version with error %v", err)
// Failf() marks the case as failure, and returns from the
// Go-routine that runs the case. This function will not have a
// return value.
}
maj := fmt.Sprintf("%d", major)
min := fmt.Sprintf("%d", minor)
return (v.Major > maj) || (v.Major == maj && v.Minor >= min)
}