+++ This bug was initially created as a clone of Bug #1801358 +++ Description of problem: Due to an issue in how Kubernetes v0.17.0 validates PVCs (https://github.com/kubernetes/kubernetes/issues/87583), the prometheus operator could not successfully create prometheus stateful sets (https://github.com/coreos/prometheus-operator/issues/2950). Version-Release number of selected component (if applicable): Prometheus operator 0.36.0 and earlier. How reproducible: Always happens with certain config in kube 0.17.0 Steps to Reproduce: Create a prometheus custom resource containing a volumeClaimTemplate containing either the apiVersion or Kind fields set to non-null values.