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OpenVZ/Proxmox - Container to Template
Published: 11-07-2014 | Author: Remy van Elst | Text only version of this article
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This guide will show you how to convert an OpenVZ (Proxmox) container to a template. You can then use this template on any other OpenVZ (or proxmox) host. This can be used either to migrate containers or to create a kind of master image to deploy new hosts from.
This guide is tested on a proxmox machine running proxmox version 3.2.
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Login as root to the proxmox machine via ssh.
Get a list of containers using vzlist:
CTID NPROC STATUS IP_ADDR HOSTNAME
100 85 running 10.21.21.5 master.raymii.nl
101 34 running 10.21.21.6 test-master.raymii.nl
I want to create a template of master.raymii.nl which has ID 100.
You must stop the container before creating the image:
vzctl stop 101
Stopping container ...
Container was stopped
Container is unmounted
Go to the container folder:
cd /var/lib/vz/private/100
Then start the image creation:
tar -cvzpf /var/lib/vz/template/cache/master.raymii.nl.tar.gz .
This will place the image in
/var/lib/vz/template/cache/master.raymii.nl.tar.gz. This file can be copied
and deployed on another host, or used on the same host as a template.