Class: VagrantPlugins::TerraformProvider::Action::WaitForVmUp

Inherits:
Object
  • Object
show all
Includes:
Util::TerraformExecute
Defined in:
lib/vagrant-terraform/action/wait_for_vm_up.rb

Overview

Wait till VM is started, till it obtains an IP address and is accessible via ssh.

Instance Method Summary collapse

Methods included from Util::TerraformExecute

terraform_execute

Constructor Details

#initialize(app, env) ⇒ WaitForVmUp

Returns a new instance of WaitForVmUp.



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# File 'lib/vagrant-terraform/action/wait_for_vm_up.rb', line 17

def initialize(app, env)
  @logger = Log4r::Logger.new("vagrant_terraform::action::wait_for_vm_up")
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-terraform/action/wait_for_vm_up.rb', line 54

def call(env)
  # Initialize metrics if they haven't been
  env[:metrics] ||= {}

  # Wait for VM to obtain an ip address.
  env[:metrics]["instance_ip_time"] = Util::Timer.time do
    env[:ui].info(I18n.t("vagrant_terraform.waiting_for_ip"))
    for attempt in 1..100
      # If we're interrupted don't worry about waiting
      next if env[:interrupted]

      output = terraform_execute(env, "terraform refresh")
      ip_addr = output.match(/\b(?:\d{1,3}\.){3}\d{1,3}\b/)&.to_s
      unless ip_addr.nil?
        env[:ui].info("Got IP (attempt #{attempt}): #{ip_addr}")
        # Check if SSH-Server is up
        if port_open?(ip_addr)
          env[:ip_address] = ip_addr
          @logger.debug("Got output #{env[:ip_address]}")
          break
        end
      end
      sleep 2
    end
  end

  terminate(env) if env[:interrupted]

  if env[:ip_address].nil?
    env[:ui].error("failed to get IP: #{env[:metrics]["instance_ip_time"]}")
    raise Errors::NoIPError
  else
    @logger.info("Got IP address #{env[:ip_address]}")
    @logger.info("Time for getting IP: #{env[:metrics]["instance_ip_time"]}")

    # Booted and ready for use.
    env[:ui].info(I18n.t("vagrant_terraform.ready"))

    @app.call(env)
  end
end

#port_open?(ip) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vagrant-terraform/action/wait_for_vm_up.rb', line 22

def port_open?(ip)
  # Check if ssh server responds, AuthenticationFailed is what we expect to get.
  # If credentials vagrant:vagrant happen to work that's a success as well.
  begin
    begin
      ssh = Net::SSH.start(ip, "vagrant", password: "vagrant",
                           non_interactive: true, user_known_hosts_file: [],
                           verify_host_key: :never)
    ensure
      ssh&.close
    end
    return true
  rescue Errno::ECONNREFUSED, Errno::EHOSTUNREACH
    return false
  rescue Net::SSH::AuthenticationFailed
    return true
  rescue Net::SSH::Disconnect => e
    @logger.debug("Net::SSH disconnected: #{e.message}")
    return false
  rescue Errno::ECONNRESET
    @logger.debug("Got connection reset")
    return false
  rescue StandardError => e
    @logger.debug("Got error #{e.message}")
    return false
  rescue => e
    @logger.debug("An error of type #{e.class} happened, message is #{e.message}")
    return false
  end
  return false
end

#recover(env) ⇒ Object 



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# File 'lib/vagrant-terraform/action/wait_for_vm_up.rb', line 96

def recover(env)
  return if env["vagrant.error"].is_a?(Vagrant::Errors::VagrantError)

  if env[:machine].provider.state.id != :not_created
    # Undo the import
    terminate(env)
  end
end

#terminate(env) ⇒ Object 



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# File 'lib/vagrant-terraform/action/wait_for_vm_up.rb', line 105

def terminate(env)
  destroy_env = env.dup
  destroy_env.delete(:interrupted)
  destroy_env[:config_validate] = false
  destroy_env[:force_confirm_destroy] = true
  env[:action_runner].run(Action.action_destroy, destroy_env)
end