1.docker tag mybank-tomcat:latest 172.30.25.185:5000/mybank-tomcat:latest

2.当往registrypush镜像的时候，

docker push  172.30.25.185:5000/default/mybank-tomcat:latest

The push refers to a repository [172.30.25.185:5000/default/mybank-tomcat]
26edbc7db48e: Preparing
4a2ea40b848e: Preparing
d5a88c486dd9: Preparing
5bf7dc068cae: Preparing
27032b8a893b: Preparing
753a202ced03: Waiting
63459bcf96d7: Waiting
db62c23c8485: Waiting
4fe15f8d0ae6: Waiting
unauthorized: authentication required

3.oc whoami -t

sr3grwkegr3kjrk42k2jrg34kb5k43g5k4jg53

4.登录

docker login -u dev -p eo9lYP1zCutWObmoQRhCBURfipNQPP-W8ELUj82wnQQ https://172.30.25.185:5000

successful

5.推送

docker push  172.30.25.185:5000/default/mybank-tomcat:latest

successful

参考：

https://stackoverflow.com/questions/45404818/openshift-online-error-on-startcontainer-errimagepull-unauthorized-authent