Class: DTK::NodeAgent::Installer

Inherits:
Object
  • Object
show all
Defined in:
lib/dtk-node-agent/installer.rb

Constant Summary collapse

CONFIG =

read configuration

eval(File.open(File.expand_path('../config/install.config', File.dirname(__FILE__))) {|f| f.read })

Class Method Summary collapse

Class Method Details

.base_dir ⇒ Object 



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# File 'lib/dtk-node-agent/installer.rb', line 200

def self.base_dir
  File.expand_path('../..', File.dirname(__FILE__))
end

.disable_apt_daily ⇒ Object 



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# File 'lib/dtk-node-agent/installer.rb', line 245

def self.disable_apt_daily
  shell "systemctl disable apt-daily.service"
end

.inside_docker? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dtk-node-agent/installer.rb', line 255

def self.inside_docker?
  File.exist?('/.dockerenv')
end

.install_additions ⇒ Object 



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# File 'lib/dtk-node-agent/installer.rb', line 182

def self.install_additions
  # create puppet group
  shell "groupadd puppet" unless `grep puppet /etc/group`.include? "puppet"
  # create necessary dirs
  [ '/var/log/puppet/',
    '/var/lib/puppet/lib/puppet/indirector',
    '/etc/puppet/modules',
    '/usr/share/dtk/modules'
    ].map! { |p| FileUtils.mkdir_p(p) unless File.directory?(p) }
  # copy puppet libs
  FileUtils.cp_r(Dir.glob("#{base_dir}/puppet_additions/puppet_lib_base/puppet/indirector/*"), "/var/lib/puppet/lib/puppet/indirector/")
  # copy dtk/r8 puppet module
  FileUtils.cp_r(Dir.glob("#{base_dir}/puppet_additions/modules/*"), "/usr/share/dtk/modules/")
  # symlink dtk/r8 puppet module
  FileUtils.ln_sf("/usr/share/dtk/modules/dtk", "/etc/puppet/modules/")
  FileUtils.ln_sf("/usr/share/dtk/modules/r8", "/etc/puppet/modules/")
end

.install_arbiter ⇒ Object 



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# File 'lib/dtk-node-agent/installer.rb', line 224

def self.install_arbiter
  arbiter_branch = CONFIG[:arbiter_branch] || 'stable'
  shell "git clone -b #{arbiter_branch} https://github.com/dtk/dtk-arbiter /usr/share/dtk/dtk-arbiter"
  Dir.chdir "/usr/share/dtk/dtk-arbiter"
  shell "bundle install --without development"
  puts "Installing dtk-arbiter init script"
  if is_systemd?
    # copy the service file, since systemd doesn't follow symlinks
    FileUtils.cp("/usr/share/dtk/dtk-arbiter/etc/systemd.dtk-arbiter.service", "/etc/systemd/system/dtk-arbiter.service")
  else
    FileUtils.ln_sf("/usr/share/dtk/dtk-arbiter/etc/#{@osfamily}.dtk-arbiter.init", "/etc/init.d/dtk-arbiter")
  end
  set_init("dtk-arbiter")
  puts "Installing dtk-arbiter monit config."
  monit_cfg_path = (@osfamily == 'debian') ? "/etc/monit/conf.d" : "/etc/monit.d"
  set_init("monit")
  logrotate_cfg_path = "/usr/share/dtk/dtk-arbiter/etc/dtk-arbiter.logrotate"
  FileUtils.ln_sf("/usr/share/dtk/dtk-arbiter/etc/dtk-arbiter.monit", "#{monit_cfg_path}/dtk-arbiter") if File.exist?(monit_cfg_path)
  FileUtils.cp(logrotate_cfg_path, "/etc/logrotate.d/dtk-arbiter") if File.exist?(logrotate_cfg_path)
end

.is_systemd? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dtk-node-agent/installer.rb', line 204

def self.is_systemd?
  system("pidof systemd > /dev/null")
end

.override_apt_daily_timer ⇒ Object 



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# File 'lib/dtk-node-agent/installer.rb', line 249

def self.override_apt_daily_timer
  timer_dir = '/etc/systemd/system/apt-daily.timer.d/'
  FileUtils.mkdir_p(timer_dir)
  FileUtils.cp("#{base_dir}/src/etc/systemd/override.conf", timer_dir)
end

.parse(argv) ⇒ Object 



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# File 'lib/dtk-node-agent/installer.rb', line 134

def self.parse(argv)
  options = {}
  parser = OptionParser.new do |opts|
    opts.banner = "    usage:\n\n    dtk-node-agent [-p|--puppet-version] [-v|--version]\n    BANNER\n    opts.on(\"-d\",\n      \"--debug\",\n      \"enable debug mode\")  { |v| options[:debug] = true }\n    opts.on(\"-n\",\n      \"--no-arbiter\",\n      \"disable arbiter installation\")  { |v| options[:no_arbiter_install] = true }\n    opts.on_tail(\"-v\",\n      \"--version\",\n      \"Print the version and exit.\") do\n      puts ::DtkNodeAgent::VERSION\n      exit(0)\n    end\n    opts.on_tail(\"-h\",\n      \"--help\",\n      \"Print this help message.\") do\n      puts parser\n      exit(0)\n    end\n  end\n\n  parser.parse!(argv)\n\n  options\n\nrescue OptionParser::InvalidOption => e\n  $stderr.puts e.message\n  exit(12)\nend\n"

.run(argv) ⇒ Object 



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# File 'lib/dtk-node-agent/installer.rb', line 33

def self.run(argv)
  require 'optparse'
  require 'fileutils'
  require 'dtk-node-agent/version'

  @@options = parse(argv)

  unless Process.uid == 0
    puts "dtk-node-agent must be started with root/sudo privileges."
    exit(1)
  end

  if @osfamily == 'debian'
    # set up apt and install packages
    shell "apt-get update --fix-missing"
    shell "apt-get install -y build-essential wget curl git libicu-dev zlib1g-dev"
    # install upgrades

    # don't install utility packages inside docker to save space
    unless inside_docker?
      Array(CONFIG[:upgrades][:debian]).each do |package|
        shell "apt-get install -y #{package}"
      end
      # install logstash forwarder
      # logstash_forwarder_url = CONFIG[:logstash_forwarder_deb64]
      # logstash_forwarder_package = logstash_forwarder_url.rpartition('/').last
      # shell "wget #{logstash_forwarder_url}"
      # puts "Installing logstash-forwarder"
      # shell "dpkg -i #{logstash_forwarder_package}"
      # shell "rm #{logstash_forwarder_package}"
    end
    shell "wget -q http://apt.puppetlabs.com/puppetlabs-release-#{@distcodename}.deb"
    puts "Installing Puppet Labs repository..."
    shell "dpkg -i puppetlabs-release-#{@distcodename}.deb"
    puts "Installing Puppet Labs repository..."
    shell "dpkg -i puppetlabs-release-#{@distcodename}.deb"
    #shell "apt-get update"
    shell "rm puppetlabs-release-#{@distcodename}.deb"
    # pin down the puppetlabs apt repo
    FileUtils.cp("#{base_dir}/src/etc/apt/preferences.d/puppetlabs", "/etc/apt/preferences.d/puppetlabs")
  elsif @osfamily == 'redhat'
    shell "yum -y install yum-utils wget curl libicu-devel zlib-devel"
    # do a full upgrade
    shell "yum -y update"
    case @osmajrelease
    when "5"
      shell "rpm -ivh #{CONFIG[:puppetlabs_el5_rpm_repo]}"
      @osarch == 'X86_64' ? (shell "rpm -ivh #{CONFIG[:rpm_forge_el5_X86_64_repo]}") : (shell "rpm -ivh #{CONFIG[:rpm_forge_el5_i686_repo]}")
    # 20xx is the major release naming pattern of Amazon Linux
    when "6", "n/a", /^20\d{2}$/
      shell "rpm -ivh #{CONFIG[:puppetlabs_el6_rpm_repo]}"
      @osarch == 'X86_64' ? (shell "rpm -ivh #{CONFIG[:rpm_forge_el6_X86_64_repo]}") : (shell "rpm -ivh #{CONFIG[:rpm_forge_el6_i686_repo]}")
      shell "yum-config-manager --disable rpmforge-release"
      shell "yum-config-manager --enable rpmforge-extras"
    when "7"
      shell "rpm -ivh #{CONFIG[:puppetlabs_el7_rpm_repo]}"
    else
      puts "#{@osname} #{@osmajrelease} is not supported. Exiting now..."
      exit(1)
    end
    shell "yum -y install git"
    # install upgrades
    unless inside_docker?
      Array(CONFIG[:upgrades][:redhat]).each do |package|
        shell "yum -y install #{package}"
        shell "yum -y update #{package}"
      end
    end
    # install ec2-run-user-data init script
    # but only if the machine is running on AWS
    if `curl -m 5 -sI http://169.254.169.254/latest/meta-data/`.include? '200 OK'
      FileUtils.cp("#{base_dir}/src/etc/init.d/ec2-run-user-data", "/etc/init.d/ec2-run-user-data") unless File.exist?("/etc/init.d/ec2-run-user-data")
      set_init("ec2-run-user-data")
    end
    # install logstash-forwarder
    puts "Installing logstash-forwarder"
    shell "rpm -ivh #{CONFIG[:logstash_forwarder_rpm64]}"
    FileUtils.cp("#{base_dir}/src/etc/init.d/logstash-forwarder.rpm.init", "/etc/init.d/logstash-forwarder")
    set_init("logstash-forwarder")
  else
    puts "Unsuported OS for automatic agent installation. Exiting now..."
    exit(1)
  end

  puts "Installing additions Puppet..."
  install_additions

  puts "Installing DTK Arbiter"
  install_arbiter unless @@options[:no_arbiter_install]

  if @distcodename == 'xenial'
    # TO-DO apt-daily.service is set as static after disabling
    puts "Disabling apt-daily service"
    disable_apt_daily
    # override service timer
    override_apt_daily_timer
  end
end

.set_init(script) ⇒ Object 



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# File 'lib/dtk-node-agent/installer.rb', line 208

def self.set_init(script)
  if is_systemd?
    # in case of a systemd system, reload the daemons
    shell "systemctl daemon-reload"
    puts "Enabling systemd #{script}.service"
    shell "systemctl enable #{script}.service"
  else
    shell "chmod +x /etc/init.d/#{script}"
    if @osfamily == 'debian'
      shell "update-rc.d #{script} defaults"
    elsif @osfamily == 'redhat'
      shell "chkconfig --level 345 #{script} on"
    end
  end
end

.shell(cmd) ⇒ Object 



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# File 'lib/dtk-node-agent/installer.rb', line 171

def self.shell(cmd)
  puts "running: #{cmd}" if @@options[:debug]
  output = `#{cmd}`
  puts output if @@options[:debug]
  if $?.exitstatus != 0
    puts "Executing command \`#{cmd}\` failed"
    puts "Command output:"
    puts output
  end
end