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b/docs/admin-guide.rst
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master using the `Ganeti RAPI interface
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<http://docs.ganeti.org/ganeti/2.2/html/rapi.html>`_.
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While Ganeti executes the job, `snf-ganeti-eventd`, `snf-ganeti-hook` and


  		





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`snf-progress-monitor` are monitoring the progress of the job and send


  		





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corresponding messages to the RabbitMQ servers. These components are part


  		





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of `snf-cyclades-gtools` and must be installed on all Ganeti nodes. Specially:


  		





  
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While Ganeti executes the job, `snf-ganeti-eventd`, and `snf-progress-monitor`


  		





  
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are monitoring the progress of the job and send corresponding messages to the


  		





  
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RabbitMQ servers. These components are part of `snf-cyclades-gtools` and must


  		





  
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be installed on all Ganeti nodes. Specially:


  		





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* *snf-ganeti-eventd* sends messages about operations affecting the operating


  		





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  state of instances and networks. Works by monitoring the Ganeti job queue.


  		





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* *snf-ganeti_hook* sends messages about the NICs of instances. It includes a


  		





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  number of `Ganeti hooks <http://docs.ganeti.org/ganeti/2.2/html/hooks.html>`_


  		





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  for customisation of operations.


  		





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* *snf-progress_monitor* sends messages about the progress of the Image deployment


  		





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  phase which is done by the Ganeti OS Definition `snf-image`.


  		





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Currently, RabbitMQ is used by the following components:


  		





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* `snf-ganeti-eventd`, `snf-ganeti-hook` and `snf-progress-monitor`:


  		





  
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* `snf-ganeti-eventd` and `snf-progress-monitor`:


  		





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  These components send messages concerning the status and progress of


  		





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  jobs in the Ganeti backend.


  		





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* `snf-dispatcher`: This daemon, consumes the messages that are sent from


  		












  

    
      b/docs/cyclades.rst
    
  






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Cyclades issues VM control commands to Ganeti over RAPI. The `update` path is


  		





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triggered whenever the state of a VM changes, due to Synnefo- or


  		





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administrator-initiated actions happening at the Ganeti level. In the update


  		





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path, we exploit Ganeti’s hook mechanism to produce notifications to the rest


  		





  
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path, we monitor Ganeti's job queue to produce notifications to the rest


  		





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of the Synnefo infrastructure over a message queue.


  		





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Users have full control over their VMs: they can create new ones, start them,


  		












  

    
      b/docs/quick-install-admin-guide.rst
    
  






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This will install the following:


  		





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 * ``snf-ganeti-eventd`` (daemon to publish Ganeti related messages on RabbitMQ)


  		





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 * ``snf-ganeti-hook`` (all necessary hooks under ``/etc/ganeti/hooks``)


  		





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 * ``snf-progress-monitor`` (used by ``snf-image`` to publish progress messages)


  		





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Configure ``snf-cyclades-gtools``


  		












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