class Dyndnsd::Updater::CommandWithBindZone

Public Class Methods

new(domain, updater_params) click to toggle source

@param domain [String] @param updater_params [Hash{String => Object}]

# File lib/dyndnsd/updater/command_with_bind_zone.rb, line 8
def initialize(domain, updater_params)
  @zone_file = updater_params['zone_file']
  @command = updater_params['command']
  @generator = Generator::Bind.new(domain, updater_params)
end

Public Instance Methods

update(db) click to toggle source

@param db [Dyndnsd::Database] @return [void]

# File lib/dyndnsd/updater/command_with_bind_zone.rb, line 16
def update(db)
  # do not regenerate zone file (assumed to be persistent) if DB did not change
  return if !db.changed?

  Helper.span('updater_update') do |span|
    span.set_attribute('dyndnsd.updater.name', self.class.name&.split('::')&.last || 'None')

    # write zone file in bind syntax
    File.write(@zone_file, @generator.generate(db))
    # call user-defined command
    pid = fork do
      exec @command
    end

    # detach so children don't become zombies
    Process.detach(pid) if pid
  end
end