docker | 脚本方式批量导出&导入镜像

python方式#

批量导出，运行后所有tar包都在当前目录下

代码语言：javascript复制

# encoding: utf-8

import re
import os
import subprocess

if __name__ == "__main__":
    p = subprocess.Popen('docker images', shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
    for line in p.stdout.readlines():

        # 此处的正则表达式是为了匹配镜像名以kolla为开头的镜像
        # 实际使用中根据需要自行调整
        m = re.match(r'(^kolla[^s]*s*)s([^s]*s)', line)

        if not m:
            continue

        # 镜像名
        iname = m.group(1).strip()
        # tag
        itag = m.group(2).strip()
        # tar包的名字
        if iname.find('/'):
            tarname = iname.split('/')[0]   '_'   iname.split('/')[-1]    '_'   itag   '.tar'
        else:
            tarname = iname   '_'   itag   '.tar'
        print tarname
        ifull = iname   ':'   itag
        #save
        cmd = 'docker save -o '   tarname   ' '   ifull
        print os.system(cmd)

    retval = p.wait()

批量导入，同理导入当前目录下的所有的tar包

代码语言：javascript复制

import  os

images = os.listdir(os.getcwd())
for imagename in images:
    if imagename.endswith('.tar'):
        print(imagename)
        os.system('docker load -i %s'%imagename)

bash方式#

导出#

代码语言：javascript复制

#!/bin/bash
docker images > images.txt
awk '{print $1}' images.txt > images_cut.txt
sed -i '1d' images_cut.txt
while read LINE
do
docker save $LINE > ${LINE////_}.train.tar
echo ok
done < images_cut.txt
echo finish

导入#

代码语言：javascript复制

#!/bin/bash
while read LINE
do
docker  load -i $LINE
echo ok
done < tarname.txt
echo finish

参考#

https://www.cnblogs.com/ksir16/p/8865525.html

python bash tar

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