Class OpenNebula::Cluster

  1. OpenNebula/Cluster.rb
Parent: OpenNebula::PoolElement
Pool VirtualNetworkPool ClusterPool ImagePool VirtualMachinePool HostPool UserPool XMLElement PoolElement XMLPool User VirtualNetwork Cluster Image VirtualMachine Host Enumerable Client ImageRepository Error OpenNebula dot/f_0.png

Methods

public class

  1. build_xml
  2. new

public instance

  1. add_host
  2. allocate
  3. delete
  4. info
  5. remove_host

Constants

CLUSTER_METHODS = { :info => "cluster.info", :allocate => "cluster.allocate", :delete => "cluster.delete", :addhost => "cluster.add", :removehost => "cluster.remove", }  

Constants and Class Methods

Public class methods

build_xml (pe_id=nil)

Creates a Cluster description with just its identifier this method should be used to create plain Cluster objects. id the id of the user

Example: 

cluster = Cluster.new(User.build_xml(3),rpc_client)
[show source] 
    # File OpenNebula/Cluster.rb, line 23
23:         def Cluster.build_xml(pe_id=nil)
24:             if pe_id
25:                 user_xml = "<CLUSTER><ID>#{pe_id}</ID></CLUSTER>"
26:             else
27:                 user_xml = "<CLUSTER></CLUSTER>"
28:             end
29: 
30:             XMLElement.build_xml(user_xml,'CLUSTER')
31:         end
new (xml, client)

Class constructor

[show source] 
    # File OpenNebula/Cluster.rb, line 36
36:         def initialize(xml, client)
37:             super(xml,client)
38: 
39:             @client = client
40:         end

Public instance methods

add_host (host_id)

Add a host to the cluster

host_id ID of the Host to be added to the Cluster

[show source] 
    # File OpenNebula/Cluster.rb, line 66
66:         def add_host(host_id)
67:             return Error.new('ID not defined') if !@pe_id
68: 
69:             rc = @client.call(CLUSTER_METHODS[:addhost], host_id.to_i, @pe_id)
70:             rc = nil if !OpenNebula.is_error?(rc)
71: 
72:             return rc
73:         end
allocate (clustername)

Allocates a new Cluster in OpenNebula

clustername A string containing the name of the Cluster.

[show source] 
    # File OpenNebula/Cluster.rb, line 54
54:         def allocate(clustername)
55:             super(CLUSTER_METHODS[:allocate], clustername)
56:         end
delete ()

Deletes the Cluster

[show source] 
    # File OpenNebula/Cluster.rb, line 59
59:         def delete()
60:             super(CLUSTER_METHODS[:delete])
61:         end
info ()

Retrieves the information of the given Cluster.

[show source] 
    # File OpenNebula/Cluster.rb, line 47
47:         def info()
48:             super(CLUSTER_METHODS[:info], 'CLUSTER')
49:         end
remove_host (host_id)

Remove a host from the cluster

host_id ID of the Host to be removed from the Cluster

[show source] 
    # File OpenNebula/Cluster.rb, line 78
78:         def remove_host(host_id)
79:             return Error.new('ID not defined') if !@pe_id
80: 
81:             rc = @client.call(CLUSTER_METHODS[:removehost], host_id.to_i)
82:             rc = nil if !OpenNebula.is_error?(rc)
83: 
84:             return rc
85:         end