[Users] vz7 libvirt integration

[Maxim Nestratov]

10-Aug-16 13:27, Sergey Bronnikov пишет:

> Hi, Frank
>
> On 09:43 Tue 09 Aug , Frank Laszlo wrote:
>> Hello,
>>
>> My company is rolling out a new setup, which was originally going to use
>> openvz 6. With the release of vz7, we'd like to take a moment to see if it
>> meets our requirements.
>>
>> I have a handful of questions that I have no been able to find answers to,
>> as the documentation is rather spare.
>>
>> 1) Am I able to create containers using libvirt? (specifically from XML
>> passed to virsh) What does this XML look like?
> Max, please comment.

Yes you are. Below is an example:

<domain type='vz'>
   <name>your-ct-name</name>
   <uuid>5869cd3e-13fc-4e69-b99a-d37c020987b6</uuid>
   <memory unit='KiB'>524288</memory>
   <currentMemory unit='KiB'>524288</currentMemory>
   <vcpu placement='static'>1</vcpu>
   <os>
     <type arch='x86_64'>exe</type>
     <init>/sbin/init</init>
   </os>
   <clock offset='utc'/>
   <on_poweroff>destroy</on_poweroff>
   <on_reboot>restart</on_reboot>
   <on_crash>destroy</on_crash>
   <devices>
     <filesystem type='file' accessmode='passthrough'>
       <driver type='ploop' format='ploop'/>
       <source file='/path/to/your/ploop/disk/directory'/>
       <target dir='/'/>
     </filesystem>
     <interface type='bridge'>
       <mac address='fa:16:3e:c6:5c:90'/>
       <source bridge='some-bridge'/>
       <target dev='veth1234'/>
       <link state='up'/>
     </interface>
     <input type='mouse' bus='parallels'/>
     <input type='keyboard' bus='parallels'/>
     <graphics type='vnc' port='-1' autoport='yes' listen='10.27.68.3'>
       <listen type='address' address='10.27.68.3'/>
     </graphics>
     <video>
       <model type='parallels' heads='1'/>
     </video>
   </devices>
</domain>


>> 2) Are OS Templates any different than openvz 6.0?
> Yes, OpenVZ 7 uses EZ templates.
> See https://docs.openvz.org/openvz_users_guide.webhelp/_managing_templates.html
>
>> 3) Has vz7 been tested with openvswitch and veth?

it was tested via intermediate linux bridge

>> 4) Does networking in vz7 work like KVM does now that we're using KVM for
>> the hypervisor?

you can use veth interfaces in CTs, which can be plugged into an arbitrary bridge on the host

>> 5) I noticed vz7 supports qcow2, In my testing containers created with
>> prlctl were still using ploop. Is there a trick to enable this?

ploop format is for containers, qcow2 - for virtual machines. There is no trick to make containers use qcow2 at the moment.

> Dima, please comment.
>
>> 6) Can VZ7 hosts be kickstarted? I thought I read somewhere that kickstart
>> was a "premium" feature only available in the paid version.
> Installation using Kickstart is available in OpenVZ 7 too - https://docs.openvz.org/openvz_installation_using_pxe_guide.webhelp/_creating_a_kickstart_file.html
>
>> I'm sure I'll have a bunch more questions, but this is where I'm starting
>> at. Thank you.
>>
>> -- 
>> Frank Laszlo
>> Nexcess - Beyond Hosting
>> 21700 Melrose Ave.
>> Southfield, MI. 48075
>> Phone: +1.866.639.2377
>> Fax:   +1.248.281.0473
>> _______________________________________________
>> Users mailing list
>> Users at openvz.org
>> https://lists.openvz.org/mailman/listinfo/users
>