Docker2 docker commit方法镜像制作
2024-08-21 04:58:45
一、前期准备
1、下载一个centos镜像，进入容器，安装wget
docker pull centos
docker run -it centos bash
[root@web1 ~]# docker run -it centos bash #进入容器
[root@4f1f1ca319f2 /]#
[root@4f1f1ca319f2 /]#
[root@4f1f1ca319f2 /]# cd
[root@4f1f1ca319f2 ~]# ls
anaconda-ks.cfg
[root@4f1f1ca319f2 ~]# cd /etc/yum.repos.d/ #配置yum源
[root@4f1f1ca319f2 yum.repos.d]# ll
total
-rw-r--r-- root root Nov CentOS-Base.repo
-rw-r--r-- root root Nov CentOS-CR.repo
-rw-r--r-- root root Nov CentOS-Debuginfo.repo
-rw-r--r-- root root Nov CentOS-Media.repo
-rw-r--r-- root root Nov CentOS-Sources.repo
-rw-r--r-- root root Nov CentOS-Vault.repo
-rw-r--r-- root root Nov CentOS-fasttrack.repo
[root@4f1f1ca319f2 yum.repos.d]# yum install wget -y #安装wget，默认没有wget安装
2、安装软件源
mkdir backup
mv c* /etc/yum.repo.d/bakcup
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
wget https://mirrors.aliyun.com/centos/7.6.1810/extras/x86_64/Packages/epel-release-7-11.noarch.rpm
3、安装软件，比如nginx
yum install nginx -y
二、制作镜像
说明，下面制作镜像先用之前的nginx镜像做的副本，下面才是centos镜像
1、使用docker commit 来提交容器副本
-m 提交时的描述文字
dock commit -m 容器 镜像名
docker commit -m 'add nginx images' mynginx zxg/my_nginx
docker commit -m 'add nginx images' mynginx zxg/my_nginx:v1
docker images
docker ps -a
[root@web1 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4f1f1ca319f2 centos "bash" About an hour ago Up About an hour musing_lichterman
[root@web1 ~]# docker commit --help Usage: docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]] Create a new image from a container's changes Options:
-a, --author string Author (e.g., "John Hannibal Smith <hannibal@a-team.com>")
-c, --change list Apply Dockerfile instruction to the created image (default [])
--help Print usage
-m, --message string Commit message
-p, --pause Pause container during commit (default true)
###制作镜像
[root@web1 ~]# docker commit -m 'add nginx images' mynginx zxg/my_nginx
sha256:f07837869dfc057273c8fd4dad1ddd7f391abb7c75dd4ecf8f84e33e84bc6b0d
[root@web1 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
zxg/my_nginx latest f07837869dfc seconds ago MB
docker.io/nginx latest e445ab08b2be days ago MB
docker.io/alpine latest b7b28af77ffe weeks ago 5.58 MB
docker.io/centos latest 9f38484d220f months ago MB
###加版本号
[root@web1 ~]# docker commit -m 'add nginx images' mynginx zxg/my_nginx:v1
sha256:b164f4c07c6407420327a48dc0259c52f31cc3ae13ca0b292b8ac5cad1b0052b
[root@web1 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
zxg/my_nginx v1 b164f4c07c64 seconds ago MB
zxg/my_nginx latest f07837869dfc seconds ago MB
docker.io/nginx latest e445ab08b2be days ago MB
docker.io/alpine latest b7b28af77ffe weeks ago 5.58 MB
docker.io/centos latest 9f38484d220f months ago MB
[root@web1 ~]# docker run -d --name my_nginx zxg/my_nginx nginx
b326027dcf4275190f7766a65510d73a5f6b15e60875254e5f729f108f809a4e
[root@web1 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4f1f1ca319f2 centos "bash" About an hour ago Up About an hour musing_lichterman
###查看进程
[root@web1 ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b326027dcf42 zxg/my_nginx "nginx" seconds ago Exited () seconds ago my_nginx
4f1f1ca319f2 centos "bash" About an hour ago Up About an hour musing_lichterman
64b4e32991c7 nginx "nginx -g 'daemon ..." days ago Exited () days ago mynginx1
f8b2da5476ed nginx "nginx -g 'daemon ..." days ago Exited () days ago mynginx
6dbdfaf6da3a alpine "sh" days ago Created distracted_shannon
aee506fe7b5a alpine "sh" days ago Created infallible_haibt
70620c73b9a0 alpine "sh" days ago Created gallant_volhard
7655cbf87bb0 alpine "sh" days ago Created agitated_brahmagupta
33fb949372e8 fce289e99eb9 "/hello" days ago Created elastic_dijkstra
9de47616aea4 fce289e99eb9 "/hello" days ago Created confident_fermi
centos镜像制作过程如下：
[root@web1 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2940076be5f7 centos "bash" About an hour ago Up About an hour suspicious_khorana
[root@web1 ~]# docker commit -m 'add centos-nginx' 2940076be5f7 zxg/centos_nginx:v1
sha256:7c6604cacec13e7caf5b4f99c514009c43df88cf59c69b2ff5a608dfc8216eae
[root@web1 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
zxg/centos_nginx v1 7c6604cacec1 seconds ago MB
docker.io/atlassian/jira-software latest c4b90dede4f3 days ago MB
zxg/my_nginx v1 b164f4c07c64 weeks ago MB
zxg/my_nginx latest f07837869dfc weeks ago MB
docker.io/nginx latest e445ab08b2be weeks ago MB
docker.io/alpine latest b7b28af77ffe weeks ago 5.58 MB
docker.io/centos latest 9f38484d220f months ago MB
[root@web1 ~]#
[root@web1 ~]# docker run -it --name centos-nginx zxg/centos_nginx:v1 /bin/bash
[root@e93232ab8601 /]#
[root@e93232ab8601 /]# rpm -qa nginx
nginx-1.12.-.el7.x86_64
[root@e93232ab8601 /]#
另外开一个窗口
[root@web1 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e93232ab8601 zxg/centos_nginx:v1 "/bin/bash" seconds ago Up seconds centos-nginx
2、制作好的镜像可以上传官网（需要注册账号）
docker login https:hub.docker.com
docker tag b326027dcf42 docker.io/myname/mynginx #打标签
docker push docker.io/myname/mynginx
转载请注明出处：https://www.cnblogs.com/zhangxingeng/p/11326365.html
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