docker容器和镜像的导入和导出

镜像的保存

[root@wxtest1607 ~]# docker images
REPOSITORY                TAG IMAGE ID CREATED SIZE tomcat8 3.0 90457edaf6ff 6 hours ago 1.036 GB [root@wxtest1607 lixr]# docker save 9045 > tomcat8-apr.tar [root@wxtest1607 lixr]# ls -lh 总用量 1.2G -rw-r--r-- 1 root root 1005M 8月 24 17:42 tomcat8-apr.tar

镜像的导入
当前缺一台CentOS7服务器，实践方式变成，先删除image，然后再导入，折腾呀！

[root@wxtest1607 lixr]# docker images
REPOSITORY                TAG                 IMAGE ID            CREATED             SIZE
tomcat8                   3.0                 90457edaf6ff        7 hours ago         1.036 GB [root@wxtest1607 lixr]# docker rmi 9045 Untagged: tomcat8:3.0 Deleted: sha256:90457edaf6ff4ce328dd8a3131789c66e6bd89e1ce40096b89dd49d6e9d62bc8 Deleted: sha256:00df1d61992f2d87e7149dffa7afa5907df3296f5775c53e3ee731972e253600 [root@wxtest1607 lixr]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE [root@wxtest1607 lixr]# docker load < tomcat8-apr.tar 60685807648a: Loading layer [==================================================>] 442.7 MB/442.7 MB [root@wxtest1607 lixr]# yer [> ] 527.7 kB/442.7 MB [root@wxtest1607 lixr]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE <none> <none> 90457edaf6ff 7 hours ago 1.036 GB [root@wxtest1607 lixr]# docker tag 9045 tomcat8-apr:3.0 [root@wxtest1607 lixr]# [root@wxtest1607 lixr]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE tomcat8-apr 3.0 90457edaf6ff 7 hours ago 1.036 GB

容器的导出

[root@wxtest1607 lixr]# docker ps 
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                               NAMES
b91d9ad83efa        9045                "/bin/bash"         18 seconds ago      Up 15 seconds trusting_colden f680b58163ab aa79 "/bin/bash" 8 hours ago Up 8 hours stupefied_mayer 4db6aa9b8278 4052 "mysqld_safe" 21 hours ago Up 21 hours 8080/tcp, 0.0.0.0:53307->3306/tcp nostalgic_leavitt 7bcfe52af7a0 599d "mysqld_safe" 21 hours ago Up 21 hours 8080/tcp, 0.0.0.0:53306->3306/tcp sleepy_hodgkin [root@wxtest1607 lixr]# [root@wxtest1607 lixr]# [root@wxtest1607 lixr]# docker export b91d9ad83efa > tomcat80824.tar [root@wxtest1607 lixr]# ls -lh 总用量 2.1G -rw-r--r-- 1 root root 943M 8月 24 18:37 tomcat80824.tar -rw-r--r-- 1 root root 1005M 8月 24 17:42 tomcat8-apr.tar

b91d9ad83efa 是镜像90457edaf6ff 启动后的容器。
镜像导出的文件比容器导出文件大哦。

容器的导入

[root@wxtest1607 lixr]# docker import tomcat80824.tar sha256:880fc96a6bb6abdfa949a56d40ef76f32f086fa11024ddcfb4e4e8b22041d5f2 [root@wxtest1607 lixr]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE <none> <none> 880fc96a6bb6 6 seconds ago 971.9 MB [root@wxtest1607 lixr]# docker tag 880f tomcat80824:1.0 [root@wxtest1607 lixr]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE tomcat80824 1.0 880fc96a6bb6 About a minute ago 971.9 MB tomcat8-apr 3.0 90457edaf6ff 8 hours ago 1.036 GB

镜像和容器导出和导入的区别
镜像导入和容器导入的区别：
1）容器导入是将当前容器变成一个新的镜像
2）镜像导入是复制的过程
save 和 export区别：
1）save 保存镜像所有的信息-包含历史
2）export 只导出当前的信息

[root@wxtest1607 lixr]# docker history 880fc96a6bb6
IMAGE               CREATED             CREATED BY          SIZE                COMMENT
880fc96a6bb6        12 minutes ago                          971.9 MB            Imported from -
[root@wxtest1607 lixr]# docker history 90457edaf6ff IMAGE CREATED CREATED BY SIZE COMMENT 90457edaf6ff 8 hours ago /bin/bash 434.4 MB <missing> 23 hours ago /bin/bash 406.5 MB <missing> 7 weeks ago /bin/sh -c #(nop) CMD ["/bin/bash"] 0 B <missing> 7 weeks ago /bin/sh -c #(nop) LABEL license=GPLv2 0 B <missing> 7 weeks ago /bin/sh -c #(nop) LABEL vendor=CentOS 0 B <missing> 7 weeks ago /bin/sh -c #(nop) LABEL name=CentOS Base Imag 0 B <missing> 7 weeks ago /bin/sh -c #(nop) ADD file:b3bdbca0669a03490e 194.6 MB <missing> 7 weeks ago /bin/sh -c #(nop) MAINTAINER

作者：灼灼2015
链接：https://www.jianshu.com/p/8408e06b7273
来源：简书
简书著作权归作者所有，任何形式的转载都请联系作者获得授权并注明出处。

docker容器和镜像的导入和导出

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