Class: Elevage::Provisioner

Inherits:
Object
  • Object
show all
Defined in:
lib/elevage/provisioner.rb

Overview

Provisioner class

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, component, instance, environment, options) ⇒ Provisioner

Set us up to build the specified instance of component



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# File 'lib/elevage/provisioner.rb', line 17

def initialize(name, component, instance, environment, options)
  @name = name
  @component = component
  @instance = instance
  @environment = environment
  @options = options
  @vcenter = @environment.vcenter
end

Instance Attribute Details

#component ⇒ Object

Returns the value of attribute component.



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# File 'lib/elevage/provisioner.rb', line 11

def component
  @component
end

#environment ⇒ Object

Returns the value of attribute environment.



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# File 'lib/elevage/provisioner.rb', line 13

def environment
  @environment
end

#instance ⇒ Object

Returns the value of attribute instance.



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# File 'lib/elevage/provisioner.rb', line 12

def instance
  @instance
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/elevage/provisioner.rb', line 10

def name
  @name
end

#vcenter ⇒ Object

Returns the value of attribute vcenter.



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# File 'lib/elevage/provisioner.rb', line 14

def vcenter
  @vcenter
end

Instance Method Details

#build ⇒ Object

Public: Build the node rubocop:disable MethodLength, LineLength, GlobalVars, CyclomaticComplexity



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# File 'lib/elevage/provisioner.rb', line 37

def build
  knife_cmd = generate_knife_cmd

  # Modify behavior for dry-run
  # Echo command to stdout and logfile instead of executing command.
  if @options['dry-run']
    puts knife_cmd
    knife_cmd = "echo #{knife_cmd}"
  end

  # Open the logfile for writing
  logfile = File.new("#{@options[:logfiles]}/#{@name}.log", 'w')

  stamp = @options['dry-run'] ? '' : "#{Time.now} [#{$$}]: "
  puts "#{stamp}#{@name}: logging to #{logfile.path}"
  logfile.puts "#{stamp}#{@name}: Provisioning."

  # Execute the knife command, capturing stderr and stdout as they
  # produce anything, and push it all into a Queue object, which we then
  # write to the log file as things come available.
  status = Open4.popen4(knife_cmd) do |_pid, _stdin, stdout, stderr|
    sem = Mutex.new
    # Set and forget the thread for stderr...
    # err_thread = Thread.new do
    Thread.new do
      while (line = stderr.gets)
        sem.synchronize { logfile.puts line }
      end
    end
    out_thread = Thread.new do
      while (line = stdout.gets)
        sem.synchronize { logfile.puts line }
      end
    end
    out_thread.join
    # err_thread.exit
  end

  stamp = @options['dry-run'] ? '' : "#{Time.now} [#{$$}]: "
  logfile.puts "#{stamp}#{@name}: exit status: #{status.exitstatus}"
  logfile.close

  # Inform our master whether we succeeded or failed. Any non-zero
  # exit status is a failure, and the details will be in the logfile
  status.exitstatus == 0 ? true : false
end

#to_s ⇒ Object 



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# File 'lib/elevage/provisioner.rb', line 26

def to_s
  puts "Name: #{@name}"
  puts "Instance: #{@instance}"
  puts "Component: #{@component}"
  puts @component.to_yaml
  puts 'Environment:'
  puts @environment.to_yaml
end