1、打包
root@docker1 \~\]# docker save -o centos.tar centos:latest  \[root@docker1 \~\]# systemctl start docker \[root@docker1 \~\]# docker ps -all CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e84261634543 centos:latest "/bin/bash" 20 hours ago Exited (0) 2 minutes ago c0 \[root@docker1 \~\]# docker rm c0 c0 \[root@docker1 \~\]# docker load -i centos.tar \[root@docker1 \~\]# docker run -it --name c0 centos:latest /bin/bash \[root@docker1 \~\]# docker start c0 c0 \[root@docker1 \~\]# docker attach c0 \[root@c8d84a3be144 /\]# curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo \[root@c8d84a3be144 /\]# yum clean all \&\& yum makecache \[root@c8d84a3be144 /\]# yum -y install epel-release \[root@c8d84a3be144 /\]# read escape sequence \[root@docker1 \~\]# docker ps -all CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c8d84a3be144 centos:latest "/bin/bash" 30 minutes ago Up 8 minutes c0
2、从容器导出tar包
root@docker1 \~\]# docker export -o centos_yum.tar c0 #容器包 \[root@docker1 \~\]# ls #查看新生成的tar包 anaconda-ks.cfg centos.tar#镜像包 centos_yum.tar
3、从tar包导入镜像
docker import -m 说明内容 centos_yum.tar centos:yum
root@docker1 \~\]# docker import -m yum centos_yum.tar centos:yum #生成镜像
4、查看镜像 新的镜像不需要配置yum
root@docker \~\]# docker run -it --name c1 centos:httpd /bin/bash
5、练习 创建一个镜像，包含httpd服务，名称centos版本httpd
root@ac4bae6c2a0d /\]# rm -rf /etc/yum.repos.d/\* \[root@ac4bae6c2a0d /\]# curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo \[root@ac4bae6c2a0d /\]# yum clean all \&\& yum makecache \[root@ac4bae6c2a0d /\]# yum -y install httpd \[root@ac4bae6c2a0d /\]# echo "docker_httpd_server" \> /var/www/html/index.html \[root@ac4bae6c2a0d /\]# http -k start \[root@ac4bae6c2a0d /\]# http -k start \[root@ac4bae6c2a0d /\]# curl localhost docker_httpd_server \[root@docker \~\]# docker export -o centos_yum.tar c0 \[root@docker \~\]# docker import -m yum centos_yum.tar centos:httpd \[root@docker \~\]# docker run -it --name c1 centos:httpd /bin/bash \[root@c75fd2f052ea /\]# httpd -k start \[root@c75fd2f052ea /\]# curl localhost docker_httpd_server
root@docker \~\]# docker inspect c1 ##### 6、在外部调用指令 > \[root@docker \~\]# docker exec c0 ip a > > \[root@docker \~\]# docker exec c0 ifconfig ##### 7、外部创建文件 > \[root@docker \~\]# docker exec c1 touch /opt/test.txt > > \[root@docker \~\]# docker exec c1 ls /opt/ > > test.txt #### 二、总结 ##### 1.镜像的迁移 > **1.打包** > > docker save -o centos.tar centos: latest > > **2.加载** > > docker load -i centos.tar > > docker images > > **#停用关闭容器** > > docker stop c0 c1;docker rm c0 c1 > **# 删除镜像** > > docker rmi centos:latest ##### 2.创建镜像 > **1.创建容器** > > docker run -it -- name c0 centos:latest /bin/bash > > **# 下载阿里云仓库** > > # clean, ,,makecache > > ctrl p q > > **2.容器打包** > > docker export -o centos_yum. tar c0 > > **3.引入镜像** > > docker import -m "update yum repo" centos_yum. tar > > centos : yum > > docker image ls ##### 3.ip网络 > **1.交互式** > > docker start c0 > > docker attach c0 > > yum -y install iproute > > ip a > > **2.inspect** > > docker inspect c0 > > **3.exec** > > docker exec c0 yum -y install net-tools > > docker exec c0 ifconfig ##### 4.端口映射 > **1.指定端口映射** > > docker run -it -- name c0 -p70:80 centos:httpd > > /bin/bash > > **2.随机端口映射** > > docker run -it -- name c1 -p80 centos:httpd > > /bin/bash > > **3.指定其他ip的端口映射** > > ifconfig ens33:0 192.168.71.51 broadcast > > 192.168.71.51 netmask 255.255.255.255 up > > docker run -it -- name c2 -p192.168.71.51 :: 80 > > centos:httpd /bin/bash ##### 5.持久化 > **1.挂载** > > docker run -it -- name c3 -v /abc:/def centos:httpd > > /bin/bash > > touch /abc/aaa. txt > > docker exec c3 ls /def