http://www.cnblogs.com/2018/p/4633940.html-白红宇

http://www.cnblogs.com/2018/p/4633940.html

阅读量：6621 次

发布时间：2019-06-25

本文共 1362 字，大约阅读时间需要 4 分钟。

这里有个统计，docker官方和个人发布的镜像由于版本等各种原因，漏洞较多，那我们如何自己从头开始做个定制的镜像呢？

对，找官方文档，这里说明的很清楚了

试验如下：在centos7机器上做centos镜像

直接参考这个脚本

./mkimage-yum.sh -y /etc/yum.conf centos7

执行如上脚本，成功后，就可以看到镜像了【docker images】,概要说明一下，主要是如下几步：

2．使用yum安装相关的软件包

3．软件包安装和信息定制

4．tar打包

5．清理

建立目录结构[rootfs]

target= $0028.png?rev=2.6.1$ $006D.png?rev=2.6.1$ $006B.png?rev=2.6.1$ $0074.png?rev=2.6.1$ $0065.png?rev=2.6.1$ $006D.png?rev=2.6.1$ $0070.png?rev=2.6.1$ $2212.png?rev=2.6.1$ $0064.png?rev=2.6.1$ $2212.png?rev=2.6.1$ $2212.png?rev=2.6.1$ $0074.png?rev=2.6.1$ $006D.png?rev=2.6.1$ $0070.png?rev=2.6.1$ $0064.png?rev=2.6.1$ $0069.png?rev=2.6.1$ $0072.png?rev=2.6.1$ (mktemp−d−−tmpdir(basename $0).XXXXXX)

set -x

mkdir -m 755 "$target"/dev

mknod -m 600 "$target"/dev/console c 5 1

mknod -m 600 "$target"/dev/initctl p

mknod -m 666 "$target"/dev/full c 1 7

mknod -m 666 "$target"/dev/null c 1 3

mknod -m 666 "$target"/dev/ptmx c 5 2

mknod -m 666 "$target"/dev/random c 1 8

mknod -m 666 "$target"/dev/tty c 5 0

mknod -m 666 "$target"/dev/tty0 c 4 0

mknod -m 666 "$target"/dev/urandom c 1 9

mknod -m 666 "$target"/dev/zero c 1 5

# amazon linux yum will fail without vars set

if [ -d /etc/yum/vars ]; then

mkdir -p -m 755 "$target"/etc/yum

cp -a /etc/yum/vars "$target"/etc/yum/

软件包安装和信息定制

yum -c " $0079.png?rev=2.6.1$ $0075.png?rev=2.6.1$ $006D.png?rev=2.6.1$ $0063.png?rev=2.6.1$ $006F.png?rev=2.6.1$ $006E.png?rev=2.6.1$ $0066.png?rev=2.6.1$ $0069.png?rev=2.6.1$ $0067.png?rev=2.6.1$ $0022.png?rev=2.6.1$ $2212.png?rev=2.6.1$ $2212.png?rev=2.6.1$ $0069.png?rev=2.6.1$ $006E.png?rev=2.6.1$ $0073.png?rev=2.6.1$ $0074.png?rev=2.6.1$ $0061.png?rev=2.6.1$ $006C.png?rev=2.6.1$ $006C.png?rev=2.6.1$ $0072.png?rev=2.6.1$ $006F.png?rev=2.6.1$ $006F.png?rev=2.6.1$ $0074.png?rev=2.6.1$ $003D.png?rev=2.6.1$ $0022.png?rev=2.6.1$ yumconfig"−−installroot="target" --releasever=/ --setopt=tsflags=nodocs \

--setopt=group_package_types=mandatory -y groupinstall Core

...

打包

tar --numeric-owner -c -C " $0074.png?rev=2.6.1$ $0061.png?rev=2.6.1$ $0072.png?rev=2.6.1$ $0067.png?rev=2.6.1$ $0065.png?rev=2.6.1$ $0074.png?rev=2.6.1$ $0022.png?rev=2.6.1$ $002E.png?rev=2.6.1$ $007C.png?rev=2.6.1$ $0064.png?rev=2.6.1$ $006F.png?rev=2.6.1$ $0063.png?rev=2.6.1$ $006B.png?rev=2.6.1$ $0065.png?rev=2.6.1$ $0072.png?rev=2.6.1$ $0069.png?rev=2.6.1$ $006D.png?rev=2.6.1$ $0070.png?rev=2.6.1$ $006F.png?rev=2.6.1$ $0072.png?rev=2.6.1$ $0074.png?rev=2.6.1$ $2212.png?rev=2.6.1$ target".|dockerimport−name:$version