LXC/LXD缓存镜像至本地

LXC/LXD镜像缓存技巧

最新推荐文章于 2025-09-06 18:23:00 发布

原创最新推荐文章于 2025-09-06 18:23:00 发布 · 1.8k 阅读

0 ·

CC 4.0 BY-SA版权

Ubuntu 专栏收录该内容

47 篇文章

订阅专栏

本文介绍如何在LXC/LXD中缓存镜像，通过简单命令即可将Ubuntu等镜像复制到本地，避免重复下载，提高效率。

背景

使用LXC/LXD时想像docker一样先把镜像缓存到本地，但是不知道如何操作，探究许久发现真相。

操作

afu@instance-lxc:~$ lxc image copy ubuntu:18.04 local:
Image copied successfully!
afu@instance-lxc:~$ lxc image list
+-------+--------------+--------+-----------------------------------------------+--------+----------+-----------------------------+
| ALIAS | FINGERPRINT  | PUBLIC |                  DESCRIPTION                  |  ARCH  |   SIZE   |         UPLOAD DATE         |
+-------+--------------+--------+-----------------------------------------------+--------+----------+-----------------------------+
|       | 9e7158fc0683 | no     | ubuntu 18.04 LTS amd64 (release) (20200129.1) | x86_64 | 178.73MB | Feb 5, 2020 at 5:07am (UTC) |
+-------+--------------+--------+-----------------------------------------------+--------+----------+-----------------------------+
afu@instance-lxc:~$ lxc image copy ubuntu:16.04 local:
Image copied successfully!                   
afu@instance-lxc:~$ lxc image list
+-------+--------------+--------+-----------------------------------------------+--------+----------+-----------------------------+
| ALIAS | FINGERPRINT  | PUBLIC |                  DESCRIPTION                  |  ARCH  |   SIZE   |         UPLOAD DATE         |
+-------+--------------+--------+-----------------------------------------------+--------+----------+-----------------------------+
|       | 62c59cf09683 | no     | ubuntu 16.04 LTS amd64 (release) (20200129)   | x86_64 | 159.20MB | Feb 5, 2020 at 9:03am (UTC) |
+-------+--------------+--------+-----------------------------------------------+--------+----------+-----------------------------+
|       | 9e7158fc0683 | no     | ubuntu 18.04 LTS amd64 (release) (20200129.1) | x86_64 | 178.73MB | Feb 5, 2020 at 5:07am (UTC) |
+-------+--------------+--------+-----------------------------------------------+--------+----------+-----------------------------+