我把beego中的前台页面创建了一个docker容器，对端口进行了重定向，docker run -p 4200:4200 -e API_SERVER_IP=127.0.0.1 -e API_SERVER_PORT=8080 -it demochaincode-portal2:latest sh
但是，beego运行后在网页端输入127.0.0.1:4200显示 The connection was reset
https://blog.csdn.net/csdnYF/article/details/79523161
检查下防火墙和网络
root@xm:/home/xm/Desktop/server# docker run -p 4200:4200 -e API_SERVER_IP=127.0.0.1 -e API_SERVER_PORT=8080 -it demochaincode-portal2:latest sh
Unable to find image 'demochaincode-portal2:latest' locally
docker: Error response from daemon: pull access denied for demochaincode-portal2, repository does not exist or may require 'docker login'.
See 'docker run --help'.
指导一下 怎么显示不存在 镜像docker images是存在的