https://www.openmaru.io/openshift-poc-%ed%99%9c%ec%9a%a9-%ea%b0%80%ec%9d%b4%eb%93%9c-%ec%98%a8%eb%9d%bc%ec%9d%b8-%ec%84%b8%eb%af%b8%eb%82%98-%ec%8b%9c%eb%a6%ac%ec%a6%88%eb%a1%9c-%eb%b0%b0%ec%9a%b0%eb%8b%a4/