Class: SystemBuilder::DebianBoot

Inherits:
Object
  • Object
show all
Defined in:
lib/system_builder/boot.rb

Defined Under Namespace

Classes: AptConfigurator, Chroot, Image

Constant Summary collapse

@@default_mirror = 
'http://ftp.debian.org/debian'
@@apt_proxy = 
nil

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root) ⇒ DebianBoot

Returns a new instance of DebianBoot.



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# File 'lib/system_builder/boot.rb', line 26

def initialize(root)
  @root = root

  @version = :lenny
  @mirror = @@default_mirror
  @architecture = :i386
  @components = ["main"]
  @exclude = []
  @include = [ "debian-archive-keyring" ]

  # kernel can't be installed by debootstrap
  @configurators = 
    [ localhost_configurator, 
      apt_configurator, 
      kernel_configurator, 
      fstab_configurator, 
      timezone_configurator,
      resolvconf_configurator,
      policyrc_configurator
    ]
  @cleaners = [ apt_cleaner, policyrc_cleaner ]
end

Instance Attribute Details

#architecture ⇒ Object

Returns the value of attribute architecture.



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# File 'lib/system_builder/boot.rb', line 3

def architecture
  @architecture
end

#components ⇒ Object

Returns the value of attribute components.



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# File 'lib/system_builder/boot.rb', line 4

def components
  @components
end

#configurators ⇒ Object (readonly)

Returns the value of attribute configurators.



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# File 'lib/system_builder/boot.rb', line 7

def configurators
  @configurators
end

#exclude ⇒ Object

Returns the value of attribute exclude.



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# File 'lib/system_builder/boot.rb', line 4

def exclude
  @exclude
end

#include ⇒ Object

Returns the value of attribute include.



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# File 'lib/system_builder/boot.rb', line 4

def include
  @include
end

#mirror ⇒ Object

Returns the value of attribute mirror.



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# File 'lib/system_builder/boot.rb', line 3

def mirror
  @mirror
end

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/system_builder/boot.rb', line 6

def root
  @root
end

#version ⇒ Object

Returns the value of attribute version.



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# File 'lib/system_builder/boot.rb', line 3

def version
  @version
end

Class Method Details

.apt_options ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 22

def self.apt_options
  "-o Acquire::http::Proxy='#{apt_proxy}'" if apt_proxy
end

.apt_proxy ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 18

def self.apt_proxy
  @@apt_proxy
end

.apt_proxy=(proxy) ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 15

def self.apt_proxy=(proxy)
  @@apt_proxy = proxy    
end

.default_mirror=(mirror) ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 10

def self.default_mirror=(mirror)
  @@default_mirror = mirror    
end

Instance Method Details

#apt_cleaner ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 209

def apt_cleaner
  Proc.new do |chroot|
    if chroot.image.exists?(apt_confd_proxy_file)
      puts "* remove apt proxy configuration"
      chroot.sudo "rm #{apt_confd_proxy_file}"
    end
    puts "* clean apt caches"
    chroot.sudo "apt-get clean"      
    puts "* autoremove packages"
    chroot.sudo "apt-get autoremove --yes"      
  end
end

#apt_confd_proxy_file ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 130

def apt_confd_proxy_file
  "/etc/apt/apt.conf.d/02proxy-systembuilder"
end

#apt_configurator ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 126

def apt_configurator
  AptConfigurator.new(self)
end

#bootstrap ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 58

def bootstrap
  unless File.exists?(root)
    FileUtils::mkdir_p root
    FileUtils::sudo "debootstrap", debbootstrap_options, version, root, debbootstrap_url
  end
end

#chroot(&block) ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 268

def chroot(&block)
  @chroot ||= Chroot.new(image)
  @chroot.execute &block
end

#clean ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 76

def clean
  unless @cleaners.empty?
    chroot do |chroot|
      @cleaners.each do |cleaner|
        cleaner.call(chroot)
      end
    end
  end
end

#configure ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 65

def configure
  puts "* #{configurators.size} configurators to run :"
  unless @configurators.empty?
    chroot do |chroot|
      @configurators.each do |configurator|
        configurator.configure chroot, :debian_release => version
      end
    end
  end
end

#create(force = false) ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 49

def create(force = false)
  return if @creating and not force

  bootstrap
  configure
  clean
  @creating = true
end

#debbootstrap_options ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 238

def debbootstrap_options
  {
    :arch => architecture,  
    :exclude => exclude.join(','),
    :include => include.join(','),
    :variant => :minbase,
    :components => components.join(',')
  }.collect do |k,v| 
    ["--#{k}", Array(v).join(',')] unless v.blank?
  end.compact
end

#debbootstrap_url ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 250

def debbootstrap_url
  if self.class.apt_proxy
    "#{self.class.apt_proxy}#{mirror.gsub('http:/','')}"
  else
    mirror
  end
end

#fstab_configurator ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 96

def fstab_configurator
  SystemBuilder::ProcConfigurator.new do |chroot|
    puts "* create fstab"
    chroot.image.open("/etc/fstab") do |f|
      f.puts "LABEL=boot /boot auto defaults,noatime,ro 0 0"
      %w{/tmp /var/run /var/log /var/lock /var/tmp}.each do |directory|
        f.puts "tmpfs #{directory} tmpfs defaults,noatime 0 0"
      end
    end
  end
end

#image(&block) ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 258

def image(&block)
  @image ||= Image.new(root)

  if block_given?    
    yield @image
  else
    @image
  end
end

#kernel_configurator ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 86

def kernel_configurator
  SystemBuilder::ProcConfigurator.new do |chroot|
    puts "* install kernel"
    chroot.image.open("/etc/kernel-img.conf") do |f|
      f.puts "do_initrd = yes"
    end
    chroot.apt_install %w{linux-image-2.6-686}
  end
end

#localhost_configurator ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 229

def localhost_configurator
  SystemBuilder::ProcConfigurator.new do |chroot|
    chroot.image.open("/etc/hosts") do |f|
      f.puts "127.0.0.1	localhost"
      f.puts "::1     localhost ip6-localhost ip6-loopback"
    end
  end
end

#policyrc_cleaner ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 222

def policyrc_cleaner
  Proc.new do |chroot|
    puts "* enable rc services"
    chroot.sh "rm /usr/sbin/policy-rc.d"
  end
end

#policyrc_configurator ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 199

def policyrc_configurator
  SystemBuilder::ProcConfigurator.new do |chroot|    
    puts "* disable rc services"
    chroot.image.open("/usr/sbin/policy-rc.d") do |f|
      f.puts "exit 101"
    end
    chroot.sh "chmod +x /usr/sbin/policy-rc.d"
  end
end

#resolvconf_configurator ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 116

def resolvconf_configurator
  SystemBuilder::ProcConfigurator.new do |chroot|
    unless chroot.image.exists?("/etc/resolv.conf")
      puts "* define resolv.conf"
      # Use the same resolv.conf than build machine
      chroot.image.install "/etc/", "/etc/resolv.conf" 
    end
  end
end

#timezone_configurator ⇒ Object 



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# File 'lib/system_builder/boot.rb', line 108

def timezone_configurator
  SystemBuilder::ProcConfigurator.new do |chroot|
    puts "* define timezone"
    # Use same timezone than build machine
    chroot.image.install "/etc/", "/etc/timezone", "/etc/localtime"
  end
end