[one-users] vmm driver result in shell

Tue Apr 2 02:02:09 PDT 2013

You could try to encode it in base 64,

Regards

--
Carlos Martín, MSc
Project Engineer
OpenNebula - The Open-source Solution for Data Center Virtualization
www.OpenNebula.org | cmartin at opennebula.org |
@OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>

On Mon, Apr 1, 2013 at 6:00 PM, Tobias Zillner <tobias.zillner at gmx.at>wrote:

> THnaks for your advice, but I decided to save the results as additional
> xml attribute in the vm template. So the user can see the result with onevm
> show id command.
>
> Basically this way is already working. I have only one problem left.
>
> I send the memory forensic result from the driver to the core with
> sendmessage.
>
> The problem is now i get the result in multiple parts. This means for
> every line of the result a own log is created and so on...
> But i want to get it as one message and save it also as one message.
>
> How can i solve this issue. Is it possible to capsule the message into
> something?
>
> Regards,
> Tobias
>
>
> 2013/4/1 Carlos Martín Sánchez <cmartin at opennebula.org>
>
>> Think of Documents as Templates with a number that identifies documents
>> of the same type. For the reference documentation, see the Document and
>> DocumentPool classes of the ruby oca [1]. For an example, you may want to
>> take a look at the OpenNebula Apps source code [2].
>>
>> Regards
>>
>> [1] http://opennebula.org/doc/3.8/oca/ruby/
>> [2] http://opennebula.org/software:software
>>
>> --
>> Carlos Martín, MSc
>> Project Engineer
>> OpenNebula - The Open-source Solution for Data Center Virtualization
>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>
>>
>>
>> On Sat, Mar 30, 2013 at 5:30 PM, Tobias Zillner <tobias.zillner at gmx.at>wrote:
>>
>>> Yes it worked fine for me. Thank you for the advice!
>>>
>>> Now I am working on how to save the examiation results. The one document
>>> way sounds very nice.
>>>
>>> Can you give me some exapmles how to use them?
>>>
>>> Regards,
>>> Tobias
>>>
>>>
>>>
>>>
>>> 2013/3/25 Carlos Martín Sánchez <cmartin at opennebula.org>
>>>
>>>> The message sent from the core to the drivers is built
>>>> by VirtualMachineManager::format_message. This message is then received by
>>>> the driver, see for instance one_vmm_exec.rb poll method, and decoded
>>>> (VirtualMachineDriver.rb).
>>>>
>>>> I guess you can safely add a new xml element to the message if you need
>>>> to.
>>>>
>>>>
>>>> Let me know if this works out.
>>>>
>>>> Regards
>>>> --
>>>> Carlos Martín, MSc
>>>> Project Engineer
>>>> OpenNebula - The Open-source Solution for Data Center Virtualization
>>>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>
>>>>
>>>>
>>>> On Mon, Mar 25, 2013 at 1:47 PM, Tobias Zillner <tobias.zillner at gmx.at>wrote:
>>>>
>>>>>  It depends which commad i am executing. Dump memory is resource
>>>>> intesive but commds like read the process list shoudn't cost to much
>>>>> performance.
>>>>>
>>>>> The problem is that the usershould be able to choose wich command is
>>>>> executed. So i must add a possibility to get this command to the driver. Or
>>>>> am i thinking wrong?
>>>>>
>>>>> Regards,
>>>>>
>>>>> Tobias
>>>>>
>>>>> *Gesendet:* Montag, 25. März 2013 um 13:19 Uhr
>>>>> *Von:* "Carlos Martín Sánchez" <cmartin at opennebula.org>
>>>>> *An:* "Tobias Zillner" <tobias.zillner at gmx.at>
>>>>> *Cc:* users <users at lists.opennebula.org>
>>>>> *Betreff:* Re: [one-users] vmm driver result in shell
>>>>> Is your command very resource-intensive?
>>>>>
>>>>> I'm thinking that maybe you could just add your commands to the
>>>>> periodic VM monitorization. Or add a flag somewhere to indicate if the
>>>>> operation should be done in the next poll action... If you avoid to change
>>>>> the OpenNebula code it will be easier to distribute, use with newer
>>>>> versions, etc.
>>>>> --
>>>>> Carlos Martín, MSc
>>>>> Project Engineer
>>>>> OpenNebula - The Open-source Solution for Data Center Virtualization
>>>>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula>
>>>>>
>>>>> On Mon, Mar 25, 2013 at 12:59 PM, Tobias Zillner <
>>>>> tobias.zillner at gmx.at> wrote:
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> thank you for your quick answer!
>>>>>>
>>>>>> I am executing a volatility command  on the driver. Results are some
>>>>>> kind of lists or process information which is show directly on the
>>>>>> screen/shell.
>>>>>>
>>>>>> At the moment i added functionality to one.vm.action to process my
>>>>>> commands. Which part would be best to save the results in a document
>>>>>> ressource or add it to the vm template?
>>>>>> How can i invoke this?
>>>>>>
>>>>>> Regards,
>>>>>> Tobias
>>>>>>
>>>>>> 2013/3/25 Carlos Martín Sánchez <cmartin at opennebula.org>
>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> What kind of results will you present to the user?
>>>>>>>
>>>>>>>
>>>>>>> The commands that trigger a driver action are asynchronous, so you
>>>>>>> can't get any result immediately to the user.
>>>>>>>
>>>>>>> If you are modifying the c++ core, you could add your custom
>>>>>>> information in the VM template, this way the users will see it in the
>>>>>>> 'onevm show' output.
>>>>>>>
>>>>>>> Or you could use the generic document resources [1]. These are just
>>>>>>> like the templates managed with onetemplate; they will store anything and
>>>>>>> will also have owner, group, acl, permissions...
>>>>>>>
>>>>>>> Regards
>>>>>>>
>>>>>>> [1]
>>>>>>> http://opennebula.org/documentation:rel3.8:api#actions_for_document_management
>>>>>>> --
>>>>>>> Carlos Martín, MSc
>>>>>>> Project Engineer
>>>>>>> OpenNebula - The Open-source Solution for Data Center Virtualization
>>>>>>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula>
>>>>>>>
>>>>>>>  On Fri, Mar 22, 2013 at 2:37 PM, Tobias Zillner <
>>>>>>> tobias.zillner at gmx.at> wrote:
>>>>>>>
>>>>>>>>  Hello,
>>>>>>>>
>>>>>>>> my Name is Tobias Zillner and I am working on a master thesis about
>>>>>>>> forensics in the cloud.
>>>>>>>>
>>>>>>>> For my practical part I decided to add forensic services to open
>>>>>>>> nebula.
>>>>>>>>
>>>>>>>> So i extended the onevm commad and added a function forensics. I
>>>>>>>> extended the whole way through the code.
>>>>>>>> At the moment i am able to execute my own vmmd script, in which a
>>>>>>>> forensic tool (volatility) is called and analyse the virtual machines.
>>>>>>>>
>>>>>>>> But now I don't know how to get the result back to the user.
>>>>>>>> Basically i want to create a scenario like this:
>>>>>>>>
>>>>>>>> A user just puts in onevm forensics id and the analysis result is
>>>>>>>> shown to him in the screen.
>>>>>>>>
>>>>>>>> Anybody can help me here and tell me what funtions to call or how
>>>>>>>> the way back to the user shell works?
>>>>>>>> Does anyone have experience with adding funtions and the flow of
>>>>>>>> commands through the code?
>>>>>>>>
>>>>>>>> THX!
>>>>>>>>
>>>>>>>> Best Regards,
>>>>>>>>
>>>>>>>> Tobias
>>>>>>>>  _______________________________________________
>>>>>>>> Users mailing list
>>>>>>>> Users at lists.opennebula.org
>>>>>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>
>>>
>>
>
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