确认现有的Kubernetes版本为1.15.x, 1.16.x, 1.17.x,可以执行kubectl version来确认 : root@kubernetes:~# kubectl versionClient Version: version.Info{Major:"1", Minor:"15", GitVersion:"v1.15.1", GitCommit:"4485c6f18cee9a5d3c3b4e523bd27972b1b53892", GitTreeState:"clean", BuildDate:"2019-07...