OpenVZ/pt-br

Apresentação

OpenVZ (veja wiki.openvz.org) é uma solução de virtualização de servidor a nível do sistema operacional (OS-level server virtualization solution), construído no Linux. OpenVZ permite a criação de containers Linux virtuais isolados e seguros (chamados de "VE"s) em um único servidor físico. Cada container possui sua própria atualização local, power state, interfaces de rede, limites de recurso e porção limitada de filesystem hospede. OpenVZ é com frequência descrito como "chroot on steroids."

Funtoo possui suporte ao OpenVZ das seguintes maneiras:

• Building of OpenVZ templates using Metro, our distribution build tool.
• Improvement of vzctl, by developing an improved/patched version hosted on GitHub.
• Integration of Funtoo Linux Networking support into vzctl (these patches have been accepted upstream by the OpenVZ project.)
• Improvement of vzctl startup scripts to do things like properly initialize veth and vzeventd.
• Integrating additional patches into openvz-rhel6-stable and openvz-rhel5-stable ebuilds in order to ensure production-quality OpenVZ functionality.
• Maintaining compatibility with production RHEL5-based OpenVZ kernels, as well as instructions on how to get Funtoo Linux set up for these kernels in our RHEL5 Kernel HOWTO. (Note: openvz-rhel6-kernel RHEL6-based kernel is now the recommended kernel for deploying OpenVZ.)

In addition, Daniel is currently employed at Zenoss and is the author and maintainer of the Zenoss OpenVZ ZenPack (GitHub link)

Recommended Versions

For setting up OpenVZ on Funtoo Linux so that you can create Linux-based containers, an x86-64bit version of Funtoo Linux is strongly recommended. The openvz-rhel6-stable ebuild is the recommended kernel to use. If you emerge this kernel with the binary USE flag enabled, it will build a binary kernel and initrd using the default Red Hat configuration which should boot on nearly all hardware. After emerging, you will need to edit /etc/boot.conf, run boot-update, and reboot into the new OpenVZ kernel.

   Warning

Please use ext4 exclusively when deploying an OpenVZ host. The Parallels development team tests extensively with ext4, and modern versions of openvz-rhel6-stable are not compatible with XFS, and you may experience kernel bugs.

Alternatively, you could emerge openvz-rhel5-stable with the binary USE flag enabled to use the older RHEL5-based OpenVZ kernel. This requires additional steps which are covered in the RHEL5 Kernel HOWTO.

You will also need to emerge vzctl, which are the OpenVZ userspace tools.