Log dumping utility was ported from kubernetes/kubernetes repository to kubernetes/test-infra. If you require changes to this script, please consider migrating your jobs to use the new log dumping mechanism first.
Currently, log-dump.sh file is added to every newly released kubekins-e2e image. In order to leverage that script, add USE_TEST_INFRA_LOG_DUMPING environment variable to your test job and set its value to true.
For the time being, only GCE and GKE providers are supported by the log-dump mechanism. To make the mechanism support your Kubernetes provider in tests using kubekins-e2e, modify the logDumpPath function in kubetest to handle your provider and adapt log-dump.sh in accord to your needs.