Class: Distem::Resource::PNode

Inherits:

Object

• Object
• Distem::Resource::PNode

show all

Defined in:

lib/distem/resource/pnode.rb

Overview

Constant Summary

@@ids =

0

Instance Attribute Summary (collapse)

• - (Object) address readonly

  The IP address of the machine.

• - (Object) algorithms

  The emulation algorithms that are used on this physical node (Hash).

• - (Object) cpu

  The machine's CPU description.

• - (Object) id readonly

  The unique id of the machine.

• - (Object) local_vifaces

  The number of local vifaces.

• - (Object) memory

  The machine's memory description.

• - (Object) ssh_password readonly

  Deprecated, used to contact the physical node if the SSH key file is not set.

• - (Object) ssh_user readonly

  Deprecated, used to contact the physical node if the SSH key file is not set.

• - (Object) status

  The status in which the Node is (see Status).

Instance Method Summary (collapse)

• - (Object) ==(pnode)

  Compare two PNodes (based on the host address) ==== Returns Boolean value.

• - (PNode) initialize(hostname, ssh_user = "root", ssh_password = "") constructor

  Create a new PNode ==== Attributes * hostname The hostname/address of the physical machine ==== Examples pnode = PNode.new(“10.16.0.1”) OR pnode = PNode.new(“my-node.lan”).

pnode = PNode.new("10.16.0.1")
OR
pnode = PNode.new("my-node.lan")

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# File 'lib/distem/resource/pnode.rb', line 35

def initialize(hostname, ssh_user="root", ssh_password="")
  @id = @@ids
  begin
    @address = Resolv.getaddress(hostname)
  rescue Resolv::ResolvError
    raise Lib::InvalidParameterError, hostname
  end
  @cpu = CPU.new
  # mem and swap are stored in MB
  mem = `grep MemTotal /proc/meminfo`.gsub(/[^\d]/, '').to_i / 1024
  swap = `grep SwapTotal /proc/meminfo`.gsub(/[^\d]/, '').to_i / 1024
  @memory = Memory.new(mem, swap)

  @ssh_user = ssh_user
  @ssh_password = ssh_password
  @status = Status::INIT
  @algorithms = {}
  @algorithms[:cpu] = Algorithm::CPU::HOGS

  @@ids += 1
  @local_vifaces = 0
end

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# File 'lib/distem/resource/pnode.rb', line 12

def address
  @address
end

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# File 'lib/distem/resource/pnode.rb', line 20

def algorithms
  @algorithms
end

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# File 'lib/distem/resource/pnode.rb', line 14

def cpu
  @cpu
end

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# File 'lib/distem/resource/pnode.rb', line 10

def id
  @id
end

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# File 'lib/distem/resource/pnode.rb', line 22

def local_vifaces
  @local_vifaces
end

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# File 'lib/distem/resource/pnode.rb', line 16

def memory
  @memory
end

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# File 'lib/distem/resource/pnode.rb', line 25

def ssh_password
  @ssh_password
end

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# File 'lib/distem/resource/pnode.rb', line 25

def ssh_user
  @ssh_user
end

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# File 'lib/distem/resource/pnode.rb', line 18

def status
  @status
end

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# File 'lib/distem/resource/pnode.rb', line 61

def ==(pnode)
  pnode.is_a?(PNode) and (@address == pnode.address)
end