https://cgruver.github.io/okd4-single-node-cluster/
https://chowdera.com/2021/01/20210107005658178i.html
https://blog.csdn.net/mengshicheng1992/article/details/121476435
https://blog.csdn.net/weixin_26717681/article/details/108935059
https://www.cnblogs.com/ryanyangcs/p/13129768.html#1-%E5%AE%89%E8%A3%85%E8%BF%87%E7%A8%8B
operator : https://www.cnblogs.com/ericnie/p/14062619.html
s2i: https://www.cnblogs.com/ericnie/p/9677719.html