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