WizardXiao

just submit some ideas code, and i will improve the code and supplement the test later.

> @WizardXiao please fix CI https://github.com/pingcap/tidb-operator/runs/7555742109?check_suite_focus=true ok, i will fix, my github account has problems, and unable to log in, now it has recovered.

/run-pull-e2e-kind

/test pull-e2e-kind

/test pull-e2e-kind-serial

/test pull-e2e-kind

/test pull-e2e-kind pull-e2e-kind-serial

/test pull-e2e-kind pull-e2e-kind-serial

/test pull-e2e-kind

/test pull-e2e-kind