# 下载镜像
docker pull IMAGE[:TAG]
docker pull daocloud.io/centos:6.8

# 查看已下载镜像列表
docker images [-a]

# 给镜像添加标签
docker tag  IMAGE[:TAG] [REGISTRYHOST/][USERNAME/]NAME[:TAG]
dcoker tag daocloud.io/centos:6.8 centos:6.8

# 删除镜像：必须先删除依赖该镜像的容器才能删除镜像
docker rmi [OPTIONS] IMAGE [IMAGE...]

# 创建并运行容器
docker run [OPTIONS] IMAGE [COMMOND] [ARG...]
docker run -it daocloud.io/centos:6.8 /bin/bash

# 启动容器
docker start CONTAINER_ID

# 停止容器
docker stop CONTAINER_ID 

# 删除容器
docker rm CONTAINER_ID 

# 执行容器内命令
docker exec [-d] [-i] [-t] CONTAINER_ID  [COMMOND] [ARG...]
docker exec -it 4b5634aaef69 /bin/bash
docker exec 4b5634aaef69 ps -ef
docker exec 4b5634aaef69 nginx -s reload

# 导出镜像
docker save [OPTIONS] IMAGE [IMAGE...]
docker save -o ubuntu_latest.tar ubuntu:latest

# 导入镜像
docker load --input ubuntu_latest.tar
docker load < ubuntu_latest.tar