etcd-cluster-operator
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Kubernetes version matrix testing
Currently our end to end testing is executed via KIND (see make kind) and targets only the latest version of k8s. We are documented as supporting all versions of Kubernetes from v1.12 forwards. We should execute a 'matrix' test across all supported Kubernetes versions.
In order to save compute resource, this should not be done on every push to a PR, but only periodically on master when there are changes.