环境 docker-ce-19.03.1-3.el7.x86_64 centos 7 一.使用已有容器创建镜像-docker commit1.查看本地已有镜像 [root@node105 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE nginx latest 5a3221f0137b days ago 126MB hello-world latest fce289e99eb9 months ago .84kB training/we…