[one-users] How to mount iscsi target in linux container?

Thu Mar 7 20:04:38 PST 2013

Hi!
    do you use the "oneimage create " and do you use "IMAGE_ID" when you create a virtual machine?
    if you do, you will get a failed message when you create a vm. Because in my lxc driver, it firstly extract the image file after downloading it, and the judgment condition is that the suffix of the image file is "tar.gz" or not. OpenNebula's image manager will name the image file according to its rules,so my code doesn't distinguish it and it leads to a fail.

At 2013-03-07 14:29:51,"Valentin Bud" <valentin.bud at gmail.com> wrote:
Hello Dylan,

I am trying to get OpenNebula 3.2.1 or 3.8.3 working with Linux Containers but I have ran into an issue. I can't find the OneLXC drivers provided by CMRI.

Following the OpenNebula blog post [1] about OneLXC I have tried to download them from https://github.com/cmri/opennebula-3.2.1-lxc.git but that gives me a 404.

Big Cloud says in the second comment that the repo has been moved to https://github.com/cmri/one.git.

I have tried to find the IM_MAD and VMM_MAD in that repo but I wasn't able to. The blog post also mentions that there should be a `src/vmm/LibVirtDriverLXC.cc` source file in the repo. Couldn't find that either.

Where did you get the LXC drivers or are you building LXC drivers from scratch? I would like to help on this matter, first by testing them and then to further improve them. 

I could use your thoughts on this matter.

[1]: http://blog.opennebula.org/?p=3850

Thank you. Cheers and Goodwill,
Valentin Bud

On Tue, Mar 5, 2013 at 11:48 AM, Albert Avellana <albertavepa at gmail.com> wrote:

Hi Dylan,

I'm Albert, a researcher from UPC university (Barcelona) working in a cloud community project. I've been testing your version of Open Nebula 3.2.1 adapted for LXC and it seems to work well. I'll be glad to help you with the 3.8 version if you are interested, developing some parts or just testing and giving you feedback / reporting bugs. We are really interested in the possibility of fully integrating LXC with Open Nebula so let me know if I we can work together :)

best regards,

albert

On 4 March 2013 15:07, cmcc.dylan <dx10years at 126.com> wrote:

Hi!
I use opennebula-3.2.1 now, but i'm going to use opennebula-3.8.
yes, i use ubuntu and  have implement the basic funstions,for example,create/delete/suspend/resume a linux container instance.
The questions i talked about is that i plan to use shared storage for linux container, such as nfs and iscsi.

I think it's very suitable for a private cloud and a development enviroment.

At 2013-03-04 16:25:42,"Valentin Bud" <valentin.bud at gmail.com> wrote:
Hello Dylan,

What version of OpenNebula are you using? As far as I understand you are using Ubuntu as your OS and trying to boot up LXC containers on top of that. Am I right?

What basic functions are you talking about? Start/stop LXC containers? 

Could you elaborate a little bit about your setup. I am thinking of using LXC containers for a project also and I am curios about your setup.

Thank you. Cheers and Goodwill,
Valentin

On Mon, Mar 4, 2013 at 9:07 AM, cmcc.dylan <dx10years at 126.com> wrote:

Hi, everyone.

     Recently, I'm doing some works about linux container. I choose lxc as the hypervisor in the cloud platform - OpenNebula. The basic funtions are done. I plan to use iscsi storage as shared storage. Beause i choose ubuntu as the container os, i execute command "sudo  apt-get install open-iscsi open-iscsi-utils". It's failed unfortunately.
     when i install, it show informations as follows:
     update-rc.d: warning: open-iscsi stop runlevel arguments (0 1 6) do not match LSB Default-Stop values (0 6)
    * Starting iSCSI initiator service iscsid                               [ OK ] 
    * Setting up iSCSI targets                                              [ OK ]

    when i execute iscsi discovery commad, it proves it is ok and shows informations as follows：
   ubuntu at lxc:~$ sudo iscsiadm -m discovery -t sendtargets -p 192.168.35.17
   192.168.35.17:3260,1 iqn.2013-02.node2
   However， when i execute iscsi login command, it's failed and show informations:
    $ sudo iscsiadm -m node --targetname iqn.2013-02.node2 -p 192.168.35.17 --login
    Logging in to [iface: default, target: iqn.2013-02.node2, portal: 192.168.35.17,3260]
    iscsiadm: got read error (0/0), daemon died?
    iscsiadm: Could not login to [iface: default, target: iqn.2013-02.node2, portal: 192.168.35.17,3260]: 
    iscsiadm: initiator reported error (18 - could not communicate to iscsid

   Does lxc support iscsi ?

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