Class: PhpFpmDocker::Application

Inherits:
Object
  • Object
show all
Defined in:
lib/php_fpm_docker/application.rb

Overview

Application that is used as init script

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Application 



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# File 'lib/php_fpm_docker/application.rb', line 10

def initialize
  @name = 'php_fpm_docker'
  @longname = 'PHP FPM Docker Wrapper'
  # Create log dir if needed
  log_dir = Pathname.new('/var/log/php_fpm_docker')
  FileUtils.mkdir_p log_dir unless log_dir.directory?

  # Init logger
  log_file = log_dir.join('wrapper.log')
  @logger = Logger.new(log_file, 'daily')
end

Instance Attribute Details

#php_name ⇒ Object

Returns the value of attribute php_name.



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# File 'lib/php_fpm_docker/application.rb', line 9

def php_name
  @php_name
end

Instance Method Details

#help ⇒ Object 



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# File 'lib/php_fpm_docker/application.rb', line 225

def help
  $stderr.puts(
    "Usage: #{php_name} $NAME {#{allowed_methods.join '|'}}"
  )
  $stderr.puts("       #{php_name} install")
end

#install ⇒ Object

rubocop:disable MethodLength, CyclomaticComplexity, PerceivedComplexity, LineLength, AbcSize



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# File 'lib/php_fpm_docker/application.rb', line 22

def install # rubocop:disable MethodLength, CyclomaticComplexity, PerceivedComplexity, LineLength,  AbcSize
  # Get launcher name
  begin
    puts 'Enter name of the php docker launcher instance:'
    name = $stdin.gets.chomp
    fail 'Only use these characters: a-z0-9-_.' \
      unless /^[a-z0-9\.\-_]+$/.match(name)
  rescue RuntimeError =>  e
    $stderr.puts(e.message)
    retry
  end

  # Get image name
  begin
    puts 'Enter name of the docker image to use:'
    image = $stdin.gets.chomp
    fail 'Only use these characters: a-z0-9-_./:' \
      unless /^[a-z0-9\.\-_\/\:]+$/.match(name)
  rescue RuntimeError =>  e
    $stderr.puts(e.message)
    retry
  end

  bin_name = 'php_fpm_docker'
  bin_path = nil?
  # Path
  begin
    ENV['PATH'].split(':').each  do |folder|
      path = File.join(folder, bin_name)
      if File.exist? path
        bin_path = path
        break
      end
    end

    if bin_path.nil?
      bin_path = File.expand_path(File.join(
        File.dirname(__FILE__),
        '..',
        '..',
        'bin',
        bin_name
      ))
    end

  rescue RuntimeError =>  e
    $stderr.puts(e.message)
  end

  puts image

  config_basepath = Pathname.new '/etc/php_fpm_docker/conf.d'
  config_dir = config_basepath.join name
  config_path = config_dir.join 'config.ini'
  config_pool = config_dir.join 'pools.d'
  config_content = "[main]\ndocker_image=\#{image}\n"

  initd_name = "php_fpm_docker_#{name}"
  initd_path = Pathname.new File.join('/etc/init.d/', initd_name)
  initd_content = "#!/bin/sh\n### BEGIN INIT INFO\n# Provides:          \#{initd_name}\n# Required-Start:    $remote_fs $network\n# Required-Stop:     $remote_fs $network\n# Default-Start:     2 3 4 5\n# Default-Stop:      0 1 6\n# Short-Description: starts PHP Docker launcher \#{name}\n# Description:       Starts The PHP Docker launcher daemon \#{name}\n### END INIT INFO\n\nNAME=\#{name}\nDAEMON=\#{bin_path}\n\n\ncase \"$1\" in\nstart)\n  $DAEMON $NAME start\n  ;;\nstop)\n  $DAEMON $NAME stop\n  ;;\nreload)\n  $DAEMON $NAME reload\n  ;;\nstatus)\n  $DAEMON $NAME status\n  ;;\nrestart|force-reload)\n  $DAEMON $NAME restart\n  ;;\n  *)\n  echo \"Usage: $0 {start|stop|status|restart|force-reload|reload}\" >&2\n  exit 1\n  ;;\nesac\n\n\n"
  puts "Creating init script in '#{initd_path}'"
  File.open(initd_path, 'w') do |file|
    file.write(initd_content)
  end
  File.chmod(0755, initd_path)

  unless config_dir.exist?
    puts "Creating config directory '#{config_dir}'"
    FileUtils.mkdir_p config_dir
  end
  unless config_pool.exist?
    puts "Creating pools directory '#{config_pool}'"
    FileUtils.mkdir_p config_pool
  end
  puts "Creating config file '#{config_path}'"
  File.open(config_path, 'w') do |file|
    file.write(config_content)
  end

  0
end

#reload ⇒ Object 



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# File 'lib/php_fpm_docker/application.rb', line 205

def reload
  print "Reloading #{full_name}: "
  $stdout.flush

  unless running?
    puts 'not running'
    return 0
  end

  Process.kill('USR1', pid)
  puts 'done'
  0
end

#restart ⇒ Object 



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# File 'lib/php_fpm_docker/application.rb', line 219

def restart
  ret_val = stop
  return ret_val if ret_val != 0
  start
end

#run ⇒ Object 



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# File 'lib/php_fpm_docker/application.rb', line 232

def run
  method_to_call = parse_arguments(ARGV)
  exit send(method_to_call)
rescue RuntimeError => e
  @logger.warn(php_name) { e.message }
  help
  exit 3
end

#start ⇒ Object 



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# File 'lib/php_fpm_docker/application.rb', line 146

def start
  print "Starting #{full_name}: "
  $stdout.flush

  if running?
    puts 'already running'
    return 0
  end

  # init
  l = Launcher.new php_name

  # run daemon
  self.pid = l.run

  puts "done (pid=#{pid})"
  0
end

#status ⇒ Object 



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# File 'lib/php_fpm_docker/application.rb', line 192

def status
  print "Status of #{full_name}: "
  $stdout.flush

  if running?
    puts 'running'
    return 0
  else
    puts 'not running'
    return 3
  end
end

#stop ⇒ Object 



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# File 'lib/php_fpm_docker/application.rb', line 165

def stop
  print "Stopping #{full_name}: "
  $stdout.flush

  unless running?
    puts 'not running'
    return 0
  end

  Process.kill('TERM', pid)

  count = 0
  while running? && count <= 50
    sleep 0.2
    count += 1
  end

  if running?
    puts 'still running'
    return 1
  else
    self.pid = nil
    puts 'stopped'
    return 0
  end
end