Class: Exec::NodeDestroy

Inherits:
ExecutableCommand show all
Defined in:
lib/exec/node_destroy.rb

Overview

Allows the user to destroy node’s of crowbar server

Instance Attribute Summary

Attributes inherited from ExecutableCommand

#argv, #command_name, #logger, #options, #stderr, #stdin, #stdout, #values

Instance Method Summary collapse

Methods inherited from ExecutableCommand

#check_parameters, #create_logger, #run

Constructor Details

#initialize(argv, stdin, stdout, stderr, command_name) ⇒ NodeDestroy

Note:

Overrides default constructor by passing CustomCommandOption to super().

Default constructor of the class.

Author:

  • mbretaud



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# File 'lib/exec/node_destroy.rb', line 22

def initialize(argv, stdin, stdout, stderr, command_name)
  super(argv, stdin, stdout, stderr, command_name)
end

Instance Method Details

#destroy_node(node_name) ⇒ Object

Destroy a node from the server Crowbar

Raises:

  • NodeError If the node don’t exists or is not Ready

Author:

  • mbretaud



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# File 'lib/exec/node_destroy.rb', line 45

def destroy_node(node_name)
  @logger.info("Exec::NodeDestroy   destroy_node(#{node_name})")
  Color::print_log("NONE", "Destroy the node '#{node_name}'...", @stdout)

  output = ""
  unless node_name.nil?
    if if_node_exist(node_name, "Ready")
      cmd = Command::NodeDestroy.new(node_name)
      cmd.exec
      #output += "Destroy the node '#{node_name}'.\n"
    else
      raise NodeDestroyError.new("The node '#{node_name}' doesn't exists or is not 'Ready'.")
    end
  else
    raise NodeDestroyError.new("The node name is nil.")
  end

  Color::echo_ok(@stdout)
  @logger.info(output)
  if !output.empty? && output.length > 1
    @stdout.print output
  else
    @logger.info("Exec::NodeLs   No machines available.")
    @stdout.printf_red "No machines available.\n"
  end
end

#exec ⇒ Object (private)

The execution of the command.

Author:

  • mbretaud



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# File 'lib/exec/node_destroy.rb', line 35

def exec
  @logger.info("Exec::NodeDestroy   Executing NodeDestroy")
  destroy_node(@values['node'])
end

#if_node_exist(node_name, status) ⇒ Boolean (private)

TODO:

refactor in a library

Check if the node exists or not

Author:

  • mbretaud



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# File 'lib/exec/node_destroy.rb', line 78

def if_node_exist(node_name, status)
  @logger.info("Exec::NodeDestroy   Check if the node '#{node_name}' exists or not.")

  # Retrieves the list of nodes.
  begin
    @logger.info("Exec::NodeDestroy   Getting the nodes list.")
    cmd = Command::CrowbarNodeList.new(@logger, status)
    list_nodes = cmd.exec
  rescue => e
    raise NodeListError.new("Retrieves the list of nodes with the status '#{status}'.")
  end

  if !list_nodes.nil? && list_nodes.length > 0
    list_nodes.each { |node|
      if node_name == node.split(" ").at(0).strip.to_s()
        return true
      end
    }
  end

  return false
end

#set_options ⇒ Object (private)

Author:

  • aboudot



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# File 'lib/exec/node_destroy.rb', line 28

def set_options()
  @logger.info("Exec::NodeDestroy   Setting options")
  @options.add_option("n", "node", "The Node name that will be Destroy.", true, true, method(:check_crowbar_node_name))
end