
Due to a change in Go 1.10.3[1], which k8s v1.11.1 is based on, now magnum is failing to create a working k8s cluster with version 1.11.1. This patch is changing removing the extention usage for server auth for ca cert and using simple public/private keys for k8s service account keys. [1] https://go.googlesource.com/go/+/09fa131c99da0ef9f78c9f4f6cd955237ccc01cd Task: 23210 Story: 2003103 Change-Id: Ieba8f55d55db2afda6888d4bc6c2caa87370d13d