Class: Exec::NodeInstall

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

Overview

Allows the user to deploy nodes on a cluster with Crowbar.

Author:

  • mbretaud

Defined Under Namespace

Classes: CustomCommandOption

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) ⇒ NodeInstall

Note:

Overrides default constructor by passing CustomCommandOption to super().

Default constructor of the class.

Author:

  • mbretaud



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

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

Instance Method Details

#exec ⇒ Object (private)

The execution of the command.

Author:

  • mbretaud



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# File 'lib/exec/node_install.rb', line 40

def exec()
  @logger.info("Exec::NodeInstall   Executing NodeInstall")

  output = ""

  ### All installations ###
  if @values['all'] && !@values['force'] && @values['node'].nil?
    @logger.info("Exec::NodeInstall   All installations")
    Color::print_log("NONE", "Installation of all node 'Discovered'...", @stdout)

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

    bios_name = @values['bios']
    raid_name = @values['raid']

    if !list_nodes.nil? && list_nodes.length > 0
      list_nodes.each { |node_name|
        begin
          output += install_node(node_name, bios_name, raid_name) + "\n"
        rescue => e
          raise NodeInstallError.new("Installation of the node '#{node_name}'.")
        end
      }
    else
      raise NodeInstallError.new("No machines are Discovered.")
    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

  ### Installation on one node ###
  if !@values['all'] && !@values['force'] && !@values['node'].nil?
    @logger.info("Exec::NodeInstall   Installation on the node '#{@values['node']}'")
    Color::print_log("NONE", "Installation of the node '#{@values['node']}'...", @stdout)

    node_name = @values['node']
    bios_name = @values['bios']
    raid_name = @values['raid']

    if !if_node_exist(node_name, "Discovered")
      raise NodeInfoError.new("The node '#{node_name}' doesn't exists or is not 'Discovered'.")
    end

    begin
      output += install_node(node_name, bios_name, raid_name) + "\n"
    rescue => e
      raise NodeInstallError.new("Installation of the node '#{node_name}'.")
    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

  ### Reinstallation on one node Ready ###
  if !@values['all'] && @values['force'] && !@values['node'].nil?
    @logger.info("Exec::NodeInstall   Reinstallation on the node '#{@values['node']}'")
    Color::print_log("NONE", "Reinstallation of the node '#{@values['node']}'...", @stdout)

    node_name = @values['node']
    bios_name = @values['bios']
    raid_name = @values['raid']

    if !if_node_exist(node_name, "Ready")
      raise NodeInfoError.new("The node '#{node_name}' doesn't exists or is not 'Ready.")
    end

    begin
      output += reinstall_node(node_name, bios_name, raid_name) + "\n"
    rescue => e
      raise NodeReinstallError.new("Reinstallation of the node '#{node_name}'.")
    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
end

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

TODO:

refactor in a library

Check if the node exists or not

Parameters:

  • node_name (String) —

    the name node

Returns:

  • (Boolean) —

    true if the node exists, false else

Author:

  • mbretaud



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# File 'lib/exec/node_install.rb', line 191

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

  # Retrieves the list of nodes.
  begin
    @logger.info("Exec::NodeInstall   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.split(" ").at(0).strip.to_s() == node.split(" ").at(0).strip.to_s()
        return true
      end
    }
  end

  return false
end

#install_node(node_name, bios_name = nil, raid_name = nil) ⇒ Object

Install a node

Parameters:

  • node_name (String) —

    the name node

Raises:

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

Author:

  • mbretaud



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# File 'lib/exec/node_install.rb', line 148

def install_node(node_name, bios_name = nil, raid_name = nil)
  @logger.info("Exec::NodeInstall   install_node(#{node_name}, #{bios_name}, #{raid_name})")

  output = ""
  unless node_name.nil?
    if if_node_exist(node_name, "Discovered")
      cmd = Command::NodeInstall.new(node_name, bios_name, raid_name)
      cmd.exec
      output += "Installation of the node '#{node_name}'.\n"
    else
      raise NodeInstallError.new("The node '#{node_name}' doesn't exists or is not 'Discovered.")
    end
  end
  return output
end

#reinstall_node(node_name, bios_name = nil, raid_name = nil) ⇒ Object

Reinstall a node

Parameters:

  • node_name (String) —

    the name node

Raises:

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

Author:

  • mbretaud



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# File 'lib/exec/node_install.rb', line 169

def reinstall_node(node_name, bios_name = nil, raid_name = nil)
  @logger.info("Exec::NodeInstall   reinstall_node(#{node_name}, #{bios_name}, #{raid_name})")

  output = ""
  unless node_name.nil?
    if if_node_exist(node_name, "Ready")
      cmd = Command::NodeReinstall.new(node_name, bios_name, raid_name)
      cmd.exec
      output += "Reinstallation of the node '#{node_name}'.\n"
    else
      raise NodeReinstallError.new("The node '#{node_name}' doesn't exists or is not 'Ready.")
    end
  end
  return output
end

#set_options ⇒ Object (private)

Parse and check the parameters of the function.

Author:

  • mbretaud



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# File 'lib/exec/node_install.rb', line 29

def set_options()
  @logger.info("Exec::NodeInstall   Setting options")
  @options.add_option("n", "node", "The Node name that will be installed.", true, true, method(:check_crowbar_node_name))
  @options.add_option("a", "all", "install OS on all nodes.", true, false)
  @options.add_option("b", "bios", "Set the bios name (Hadoop, HadoopInfra, Storage or Virtualization)", false, true)
  @options.add_option("r", "raid", "Set the raid name (Raid10 or JBODOnly).", false, true, method(:check_param_for_raid))
  @options.add_option("f", "force", "force the reinstallation of an already installed node.", false)
end