[one-users] vmm driver result in shell

[Carlos Martín Sánchez]

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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