About CentOS 7 + Virt-manager

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Dear Colleagues:

I’m trying to use virt-manager to create a container with lxc, as the picture I attached, I indicated that I must point to a directory where the template is to manage it with virt-manager.

I tried to use a template of http://wiki.openvz.org/Download/template/precreated, but not working, being on the console option displays a black screen with nothing.

I wonder, where can I get a template to work with virt-manager, or what are the steps to follow so you can create a template with CentOS Minimal, do not know if the template must be the same version of CentOS 7 or can be a template with CentOS 6.5

In advance, thank you very much.

-Pablo

http://picpaste.com/Captura_de_pantalla_2014-07-15_a_las_10.47.26-DHi28gtt.png

http://picpaste.com/Captura_de_pantalla_2014-07-15_a_las_10.49.02-y4TkGxLY.png

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12 thoughts on - About CentOS 7 + Virt-manager

  • Thanks Nux, but now I’m fighting with the network settings…

    There is some tutorial for this?,

    How do you create CentOS template, can you give me some steps for this…

    Thanks in Advance

    Pablo

  • Hi Scott,

    while much of what you say is true you somehow could lead unaware users to the conclusion that docker and lxc are two very different container technologies.

    In fact, docker uses lxc for containers. So it’s more a management abstraction layer with an API.

    Nevertheless for true and secure containerization you’ll need openvz atm, sadly it’s not in the kernel yet.

  • Dear Colleagues:

    Thanks a lot, for your replies, my boss is a big fan of lxc, but I have read many forums, and what I perceive is rhel7 -> docker, CentOS7 —>
    openvz

    With great difficulty, I managed a container with virt-manager, I even noticed a bug when trying to create a bridge.

    Conclusion, as we want to use a container operating system is better to use openvz, now is there interfaces that allow a user no expert reserve resources such as memory, cpu, etc without going to browse cgroups?

    Thanks in advance

    -Pablo

  • Am 16.07.2014 15:16, schrieb Scott Dowdle:

    This is not correct, or the docker docs are out of date:

    “Docker combines these components into a wrapper we call a container format. The default container format is called libcontainer.Docker also supports traditional Linux containers using LXC.” Source:[1]

    [1]https://docs.docker.com/introduction/understanding-docker/#the-underlying-technology

  • Greetings again,

    —– Original Message —–

    For anyone not willing to take the time to visit the Docker 0.9 release blog post, here’s a snippet from it:

    “Thanks to libcontainer, Docker out of the box can now manipulate namespaces, control groups, capabilities, apparmor profiles, network interfaces and firewalling rules – all in a consistent and predictable way, and without depending on LXC or any other userland package. This drastically reduces the number of moving parts, and insulates Docker from the side-effects introduced across versions and distributions of LXC.”

    Is that more clear?

    TYL,
    —
    Scott Dowdle
    704 Church Street Belgrade, MT 59714
    (406)388-0827 [home]
    (406)994-3931 [work]

  • Dear Colleagues:

    There is documentation, step by step, how to use VLAN tagged and bonding?,I installed openvz + a web administration panel, honestly I find much less to work with lxc craft works very well ..

    Thanks in advance
    -Pablo