Synnefo

 * Uploading your custom Images to Pithos+

 * Spawning VMs from those custom Images

 * Registering existing Pithos+ files as Images

please continue with the rest of the guide.

Before proceeding with the Cyclades (and Plankton) installation, make sure you

have successfully set up Astakos and Pithos+ first, because Cyclades depends

Besides Astakos and Pithos+, you will also need a number of additional working

prerequisites, before you start the Cyclades installation.

Ganeti

`Ganeti <http://code.google.com/p/ganeti/>`_ handles the low level VM management

for Cyclades, so Cyclades requires a working Ganeti installation at the backend.

.. _cyclades-install-snfimage:

snf-image

Installation

For :ref:`Cyclades <cyclades>` to be able to launch VMs from specified Images,

you need the :ref:`snf-image <snf-image>` OS Definition installed on *all*

VM-capable Ganeti nodes. This means we need :ref:`snf-image <snf-image>` on

snf-image-host to run successfully.

Configuration

snf-image supports native access to Images stored on Pithos+. This means that

snf-image can talk directly to the Pithos+ backend, without the need of providing

a public URL. More details, are described in the next section. For now, the only

Pithos+.

Testing

You can test that snf-image is successfully installed by running on the

:ref:`GANETI-MASTER <GANETI_NODES>` (in our case node1):

supported Image formats.

snf-image's actual Images

Now that snf-image is installed successfully we need to provide it with some

Images. :ref:`snf-image <snf-image>` supports Images stored in ``extdump``,

<https://code.grnet.gr/projects/snf-image/wiki#Sample-Images>`_.

Spawning a VM from a Pithos+ Image, using Ganeti

Now, it is time to test our installation so far. So, we have Astakos and

Pithos+ installed, we have a working Ganeti installation, the snf-image

move on to networking now.

.. warning::

Network setup overview

This part is deployment-specific and must be customized based on the specific

needs of the system administrator. However, to do so, the administrator needs

backend appropriately, before installing Cyclades.

Network @ Cyclades level

Cyclades understands two types of Virtual Networks:

at Ganeti level, for Cyclades to be able to issue the corresponding commands.

Network @ Ganeti level

Currently, Ganeti does not support IP Pool management. However, we've been

actively in touch with the official Ganeti team, who are reviewing a relatively

get updated to become compatible with that Ganeti version.

Network @ Physical host level

We talked about the two types of Network from the Cyclades perspective, from the

VMs perspective and from Ganeti's perspective. Finally, we need to talk about

package for dynamically serving specific public IPs managed by Ganeti.

Public Network setup

Physical hosts' public network setup

The physical hosts' setup is out of the scope of this guide.

then you need to inform Ganeti about the Network's IP range.

Add the public network to Ganeti

Once you have Ganeti with IP pool management up and running, you need to choose

the public network for your VMs and add it to Ganeti. Let's assume, that you

each NIC).

NFDHCPD

At this point, Ganeti knows about your preferred network, it can manage the IP

pool and choose a specific IP for each new VM's NIC. However, the actual

own, according to your underlying network configuration.

Testing the Public Network

So, we have setup the bridges/vlans on the physical hosts appropriately, we have

added the desired network to Ganeti, we have installed nfdhcpd and installed the

Networks setup.

Private Networks setup

Physical hosts' private networks setup

At the physical host's level, it is the administrator's responsibility to

configure the network appropriately, according to his/her needs (as for the

we will configure Cyclades to talk to those 20 pre-provisioned bridges.

Testing the Private Networks

To test the Private Networks, we will create two instances and put them in the

same Private Network (``prv1``). This means that the instances will have a

If everything works as expected, then you have finished the Network Setup at the

backend for both types of Networks (Public & Private).

Synnefo RAPI user

have ``write`` access. Cyclades will use this user to issue commands to Ganeti,

so we will call the user ``cyclades``. You can do this, by editting the file

``/var/lib/ganeti/rapi/users`` and adding the line:

More about Ganeti's RAPI users `here.

<http://docs.ganeti.org/ganeti/2.5/html/rapi.html#introduction>`_

.. _cyclades-install-vncauthproxy:

vncauthproxy

To support OOB console access to the VMs over VNC, the vncauthproxy

daemon must be running on every :ref:`APISERVER <APISERVER_NODE>` node.