Class: Bosh::Agent::Message::RunErrand

Inherits:
Object
  • Object
show all
Defined in:
lib/bosh_agent/message/run_errand.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ RunErrand

Returns a new instance of RunErrand.



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# File 'lib/bosh_agent/message/run_errand.rb', line 14

def initialize(args)
  @base_dir = Bosh::Agent::Config.base_dir
  @logger = Bosh::Agent::Config.logger
end

Class Method Details

.long_running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bosh_agent/message/run_errand.rb', line 10

def self.long_running?
  true
end

.process(args) ⇒ Object 



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# File 'lib/bosh_agent/message/run_errand.rb', line 6

def self.process(args)
  self.new(args).start
end

Instance Method Details

#start ⇒ Object 



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# File 'lib/bosh_agent/message/run_errand.rb', line 19

def start
  state = Bosh::Agent::Config.state.to_hash

  job_templates = state.fetch('job', {}).fetch('templates', [])
  if job_templates.empty?
    raise Bosh::Agent::MessageHandlerError,
          "At least one job template is required to run an errand"
  end

  job_template_name = job_templates.first.fetch('name')

  env  = { 'PATH' => '/usr/sbin:/usr/bin:/sbin:/bin' }
  cmd  = "#{@base_dir}/jobs/#{job_template_name}/bin/run"
  opts = { :unsetenv_others => true }

  unless File.executable?(cmd)
    raise Bosh::Agent::MessageHandlerError,
          "Job template #{job_template_name} does not have executable bin/run"
  end

  begin
    stdout, stderr, status = Open3.capture3(env, cmd, opts)
    {
      'exit_code' => status.exitstatus,
      'stdout' => stdout,
      'stderr' => stderr,
    }
  rescue Exception => e
    @logger.warn("%s\n%s" % [e.inspect, e.backtrace.join("\n")])
    raise Bosh::Agent::MessageHandlerError, e.inspect
  end
end