fix: reassign err to prevent invalid return in KedaProvider GetExternalMetric
#6010
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Signed-off-by: Max Cao <macao@redhat.com>
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JorTurFer
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Jul 31, 2024
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/skip-e2e |
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nice catch! Thanks for the fix ❤️ |
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…nalMetric` (kedacore#6010) Signed-off-by: Max Cao <macao@redhat.com> Signed-off-by: Jorge Turrado <jorge.turrado@scrm.lidl>
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Here in the the KedaProvider https://github.com/openshift/kedacore-keda/blob/be1b1737c53f708a62a6a7386b27f5f208bf7094/pkg/provider/provider.go#L92. The GetExternalMetric function can return nil,nil in the wait for the connection to be ready since it does not reassign the err variable.
The nil,nil gets dereferenced here: https://github.com/kubernetes-sigs/custom-metrics-apiserver/blob/1e7ed5df24ef39898861260b002d9400f2d09300/pkg/registry/external_metrics/reststorage.go#L87 and hence panics in the code.
This fix reassigns the
errso that an invalidnil,nilreturn can not happen.Checklist
Fixes #6009