docker tag yuanhuan/newcontainer1 docker账号名称/dev:77 docker push docker账号名称/dev:77
转载自:https://blog.csdn.net/weixin_39821604/article/details/116921561?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_baidulandingword~default-0-116921561-blog-116585684.pc_relevant_aa_2&spm=1001.2101.3001.4242.1&utm_relevant_index=3
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一、使用docker commit命令制作docker镜像
1. pull一个centos6.6的基础镜像,并运行一个docker container,然后在其中进行定制化(安装、配置服务等);[root@localhost ~]# docker pull centos:6.6
Pulling repository centos
8b44529354f3: Download complete
f1b10cd84249: Download complete
Status: Downloaded newer image for centos:6.6
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
centos 6.6 8b44529354f3 4 days ago 202.6 MB
centos centos6.6 8b44529354f3 4 days ago 202.6 MB
[root@localhost ~]# docker run -i -t centos:6.6 bash
[root@b42c1ba929a9 /]# ls
bin dev etc home lib lib64 lost+found media mnt opt proc root sbin selinux srv sys tmp usr var
[root@b42c1ba929a9 /]# mkdir /tmp/test.txt
[root@b42c1ba929a9 /]# exit
exit
接下来,查看一下container的改动:[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b42c1ba929a9 centos:6.6 "bash" About a minute ago Exited (0) 22 seconds ago berserk_mcclintock
804a56ce8008 f1b10cd84249 "/bin/echo hello" 22 minutes ago test
[root@localhost ~]# docker diff b42c1ba929a9
C /tmp
A /tmp/test.txt
C /root
A /root/.bash_history
2. 执行docker commit命令创建一个镜像:[root@localhost ~]# docker commit -m "new container" b42c1ba929a9 yuanhuan/newcontainer1
07b146e0be9e98c253122784c3837dd1604f7692e794f3601dad747d41901cd4
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
yuanhuan/newcontainer1 latest 07b146e0be9e 43 seconds ago 202.6 MB
centos 6.6 8b44529354f3 4 days ago 202.6 MB
centos centos6.6 8b44529354f3 4 days ago 202.6 MB
3. 登录docker,并将该镜像push到docker仓库:[root@localhost ~]# docker login
Username: yuanhuan
Password:
Email: [email protected]
Login Succeeded
[root@localhost ~]# docker push yuanhuan/newcontainer1
The push refers to a repository [yuanhuan/newcontainer1] (len: 1)
Sending image list
Pushing repository yuanhuan/newcontainer1 (1 tags)
f1b10cd84249: Image already pushed, skipping
8b44529354f3: Image already pushed, skipping
07b146e0be9e: Image successfully pushed
Pushing tag for rev [07b146e0be9e] on {https://cdn-registry-1.docker.io/v1/repositories/yuanhuan/newcontainer1/tags/latest}
成功之后,就可以登录docker页面,查看到刚刚制作的镜像了。
二、使用dockerfile制作镜像
创建dockerfile文件:dockerfile.txt,内容如下:FROM centos
MAINTAINER YH, http://yuanhuan.blog.51cto.com
RUN yum install passwd openssl openssh-server -y
RUN echo '123456' | passwd --stdin root
RUN ssh-keygen -q -t rsa -b 2048 -f /etc/ssh/ssh_host_rsa_key -N ''
RUN ssh-keygen -q -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -N ''
RUN sed -i '/^session\s\+required\s\+pam_loginuid.so/s/^/#/' /etc/pam.d/sshd
RUN mkdir -p /root/.ssh && chown root.root /root && chmod 700 /root/.ssh
EXPOSE 22
CMD ip addr ls eth0 | awk '{print $2}' | egrep -o '([0-9]+\.){3}[0-9]+';/usr/sbin/sshd -D
简要说明:该dockerfile的主要目的是开启sshd服务,以便可以ssh登录,并且设置了root用户的密码。
然后执行下面的命令制作一个镜像:
docker build -t centos:autosshd - < dockerfile.txt
成功之后就可以用docker images查看镜像列表了。
两种方式比较:
使用commit命令比较简单,相当于docker根据container内部执行的命令自动生成了dockerfile,并进行了build,比较适合对dockerfile不熟悉的用户;
而dockerfile的方式显得稍有点复杂,但是比较适合批量处理的场景。dockerfile一次写入,多次运行。
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标签:centos,root,dockerfile,linux,镜像,docker,yuanhuan,制作 From: https://www.cnblogs.com/hd92/p/16754021.html