docker官方镜像下载及使用Dockerfile创建镜像的方法
时间：2020-10-02 10:20:12|栏目：|点击： 次
1、登陆docker hut官方网站：https://hub.docker.com/
2、search centos
3、docker pull centos:7.2.1511
4、创建Dockerfile文件：
[root@vmhost centos7.2]# cat Dockerfile
[plain] view plain copy
FROM centos:7.2.1511
MAINTAINER wanghongwei(wanghongwei@4paradigm.com)
RUN yum install -y expect \
&& yum install -y openssh-clients openssh-server sudo rsync vim libaio strace wget telnet lsof lvm2 psmisc net-tools \
&& /usr/bin/ssh-keygen -A \
&& yum clean all
RUN useradd work
RUN echo 123456 | passwd --stdin root
RUN echo work123 | passwd --stdin work
ADD jdk-8u121-linux-x64.tar.gz /home/work
#ENTRYPOINT ["/root/docker/images/centos7.2"]
5、创建docker镜像：Dockerfile文件在当前路径时用. 标示就可以，如果不在使用绝对路径
docker build -t 4paradigm/centos:7.2 .
6、启动容器脚本：
[root@vmhost prophet2.0]# cat prophet-3.sh [plain] view plain copy #!/bin/bash -xv HOST_NAME=prophet-3 HOST_IP=172.27.4.5 GATEWAY=172.27.0.1 ISO_PATH=/root/iso VOLUME_PATH=/home/whwstar/volume/prophet3 image=4paradigm/centos:7.2 if [ `docker ps -a | grep $HOST_NAME | wc -l` -eq 0 ];then mkdir -p $VOLUME_PATH docker run -itd -h $HOST_NAME --name=$HOST_NAME --net=none -v $ISO_PATH:$ISO_PATH -v $VOLUME_PATH:/home/work $image /bin/bash pipework br0 $HOST_NAME $HOST_IP/20@$GATEWAY docker exec -d $HOST_NAME /usr/sbin/sshd -D elif [ `docker ps -a | grep prophet-01 | wc -l` -eq 1 ];then docker start $HOST_NAME pipework br0 $HOST_NAME $HOST_IP/20@$GATEWAY docker exec -d $HOST_NAME /usr/sbin/sshd -D else echo "docker start exception" fi
