"virtualMachineTemplates"=><a href='http://snooze.inria.fr/static-scheduling-in-snooze/out-54_r/' rel='attachment wp-att-2025'>out-54_r</a>
  [
    {
      "name"    => "vm1",
      "hostId"  => "parapluie-25",
      "imageId" => "debian-hadoop-context-big.qcow2",
      "vcpus"   => 2,
      "memory"  => 2097152,
    }
  ]


In the above code (ruby style) will tell snooze that we want the vm1 on host parapluie-25.
Originaly the id was an uuid randomly generated at start time of each node. With a recent fix, different way (determined in the config file) can be used to generate the id. This make the feature more practical to use.

Example of description :

#!/usr/bin/env ruby

require 'json'

$templates =  {
  "virtualMachineTemplates"=>
  [
    {
      "name"    => "vm1",
      "hostId"  => "parapluie-25",
      "imageId" => "debian-hadoop-context-big.qcow2",
      "vcpus"   => 2,
      "memory"  => 2097152,
    },  
    {  
      "name"    => "vm2",
      "hostId"  => "parapluie-25",
      "imageId" => "debian-hadoop-context-big.qcow2",
      "vcpus"   => 4,
      "memory"  => 2097152,
    },  
    {  
      "name"    => "vm3",
      "hostId"  => "parapide-2",
      "imageId" => "debian-hadoop-context-big.qcow2",
      "vcpus"   => 4,
      "memory"  => 1048576,
    },  
    {  
      "name"    => "vm4",
      "hostId"  => "parapide-2",
      "imageId" => "debian-hadoop-context-big.qcow2",
      "vcpus"   => 2,
      "memory"  => 2097152,
    },  
    {  
      "name"    => "vm5",
      "hostId"  => "parapide-2",
      "imageId" => "debian-hadoop-context-big.qcow2",
      "vcpus"   => 2,
      "memory"  => 2097152,
    },  
    {  
      "name"    => "vm6",
      "hostId"  => "parapluie-8",
      "imageId" => "debian-hadoop-context-big.qcow2",
      "vcpus"   => 8,
      "memory"  => 1048576,
    },  
    {  
      "name"    => "vm7",
      "hostId"  => "parapluie-21",
      "imageId" => "debian-hadoop-context-big.qcow2",
      "vcpus"   => 12,
      "memory"  => 2097152,
    }
  ]
}

`curl
-X 'POST'
-H 'Content-type: application/json'
-d '#{JSON.dump($templates)}' http://localhost:5000/bootstrap?startVirtualCluster`


You can then sucessively destroy and restart in the same conditions :


for i in {1..8}
do
  curl \
   -d "vm$i"\
   -X 'POST'\
   localhost:5000/bootstrap?destroyVirtualMachine
done



out-54_r