/usr/lib/one/ruby/OpenNebula/Cluster.rb is in ruby-opennebula 3.4.1-4.1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright 2002-2012, OpenNebula Project Leads (OpenNebula.org) #
# #
# Licensed under the Apache License, Version 2.0 (the "License"); you may #
# not use this file except in compliance with the License. You may obtain #
# a copy of the License at #
# #
# http://www.apache.org/licenses/LICENSE-2.0 #
# #
# Unless required by applicable law or agreed to in writing, software #
# distributed under the License is distributed on an "AS IS" BASIS, #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
# See the License for the specific language governing permissions and #
# limitations under the License. #
#--------------------------------------------------------------------------- #
require 'OpenNebula/Pool'
module OpenNebula
class Cluster < PoolElement
#######################################################################
# Constants and Class Methods
#######################################################################
CLUSTER_METHODS = {
:info => "cluster.info",
:allocate => "cluster.allocate",
:delete => "cluster.delete",
:addhost => "cluster.addhost",
:delhost => "cluster.delhost",
:adddatastore => "cluster.adddatastore",
:deldatastore => "cluster.deldatastore",
:addvnet => "cluster.addvnet",
:delvnet => "cluster.delvnet"
}
# Creates a Cluster description with just its identifier
# this method should be used to create plain Cluster objects.
# +id+ the id of the host
#
# Example:
# cluster = Cluster.new(Cluster.build_xml(3),rpc_client)
#
def Cluster.build_xml(pe_id=nil)
if pe_id
cluster_xml = "<CLUSTER><ID>#{pe_id}</ID></CLUSTER>"
else
cluster_xml = "<CLUSTER></CLUSTER>"
end
XMLElement.build_xml(cluster_xml,'CLUSTER')
end
# Class constructor
def initialize(xml, client)
super(xml,client)
end
#######################################################################
# XML-RPC Methods for the Cluster Object
#######################################################################
# Retrieves the information of the given Cluster.
def info()
super(CLUSTER_METHODS[:info], 'CLUSTER')
end
# Allocates a new Cluster in OpenNebula
#
# +clustername+ A string containing the name of the Cluster.
def allocate(clustername)
super(CLUSTER_METHODS[:allocate], clustername)
end
# Deletes the Cluster
def delete()
super(CLUSTER_METHODS[:delete])
end
# Adds a Host to this Cluster
# @param hid [Integer] Host ID
# @return [nil, OpenNebula::Error] nil in case of success, Error
# otherwise
def addhost(hid)
return Error.new('ID not defined') if !@pe_id
rc = @client.call(CLUSTER_METHODS[:addhost], @pe_id, hid)
rc = nil if !OpenNebula.is_error?(rc)
return rc
end
# Deletes a Host from this Cluster
# @param hid [Integer] Host ID
# @return [nil, OpenNebula::Error] nil in case of success, Error
# otherwise
def delhost(hid)
return Error.new('ID not defined') if !@pe_id
rc = @client.call(CLUSTER_METHODS[:delhost], @pe_id, hid)
rc = nil if !OpenNebula.is_error?(rc)
return rc
end
# Adds a Datastore to this Cluster
# @param ds_id [Integer] Datastore ID
# @return [nil, OpenNebula::Error] nil in case of success, Error
# otherwise
def adddatastore(ds_id)
return Error.new('ID not defined') if !@pe_id
rc = @client.call(CLUSTER_METHODS[:adddatastore], @pe_id, ds_id)
rc = nil if !OpenNebula.is_error?(rc)
return rc
end
# Deletes a Datastore from this Cluster
# @param ds_id [Integer] Datastore ID
# @return [nil, OpenNebula::Error] nil in case of success, Error
# otherwise
def deldatastore(ds_id)
return Error.new('ID not defined') if !@pe_id
rc = @client.call(CLUSTER_METHODS[:deldatastore], @pe_id, ds_id)
rc = nil if !OpenNebula.is_error?(rc)
return rc
end
# Adds a VNet to this Cluster
# @param vnet_id [Integer] VNet ID
# @return [nil, OpenNebula::Error] nil in case of success, Error
# otherwise
def addvnet(vnet_id)
return Error.new('ID not defined') if !@pe_id
rc = @client.call(CLUSTER_METHODS[:addvnet], @pe_id, vnet_id)
rc = nil if !OpenNebula.is_error?(rc)
return rc
end
# Deletes a VNet from this Cluster
# @param vnet_id [Integer] VNet ID
# @return [nil, OpenNebula::Error] nil in case of success, Error
# otherwise
def delvnet(vnet_id)
return Error.new('ID not defined') if !@pe_id
rc = @client.call(CLUSTER_METHODS[:delvnet], @pe_id, vnet_id)
rc = nil if !OpenNebula.is_error?(rc)
return rc
end
# ---------------------------------------------------------------------
# Helpers to get information
# ---------------------------------------------------------------------
# Returns whether or not the host with 'id' is part of this cluster
# @param id [Integer|Array] host ID
# @return [Boolean] true if found
def contains_host?(id)
contains_resource?('HOSTS/ID', id)
end
# Returns an array with the numeric host ids
# @return [Array<Integer>]
def host_ids
array = Array.new
self.each("HOSTS/ID") do |id|
array << id.text.to_i
end
return array
end
# Returns whether or not the datastore with 'id' is part of this cluster
# @param id [Integer|Array] datastore ID
# @return [Boolean] true if found
def contains_datastore?(id)
contains_resource?('DATASTORES/ID', id)
end
# Returns an array with the numeric datastore ids
# @return [Array<Integer>]
def datastore_ids
array = Array.new
self.each("DATASTORES/ID") do |id|
array << id.text.to_i
end
return array
end
# Returns whether or not the vnet with 'id' is part of this cluster
# @param id [Integer|Arrray] vnet ID
# @return [Boolean] true if found
def contains_vnet?(id)
contains_resource?('VNETS/ID', id)
end
# Returns an array with the numeric vnet ids
# @return [Array<Integer>]
def vnet_ids
array = Array.new
self.each("VNETS/ID") do |id|
array << id.text.to_i
end
return array
end
private
def contains_resource?(xpath, id)
id_array = retrieve_elements(xpath)
return false if id_array.nil?
id = [id] if id.class != Array
id.each { |i|
return false if !id_array.include?(i.to_s)
}
return true
end
end
end
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