Class: Kitchen::Transport::Winrm::Connection

Inherits:
Base::Connection show all
Defined in:
lib/kitchen/transport/winrm.rb

Overview

A Connection instance can be generated and re-generated, given new connection details such as connection port, hostname, credentials, etc. This object is responsible for carrying out the actions on the remote host such as executing commands, transferring files, etc.

Author:

Instance Method Summary collapse

Methods inherited from Base::Connection

#execute_with_retry

Methods included from Logging

#banner, #debug, #error, #fatal, #info, #warn

Constructor Details

#initialize(config = {}) {|self| ... } ⇒ Connection

Create a new Connection instance.

Parameters:

  • options (Hash)

    connection options

Yields:

  • (self)

    yields itself for block-style invocation


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# File 'lib/kitchen/transport/winrm.rb', line 87

def initialize(config = {})
  super(config)
  @unelevated_session = nil
  @elevated_session = nil
end

Instance Method Details

#closeObject

Closes the session connection, if it is still active.


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# File 'lib/kitchen/transport/winrm.rb', line 94

def close
  @unelevated_session.close if @unelevated_session
  @elevated_session.close if @elevated_session
ensure
  @unelevated_session = nil
  @elevated_session = nil
  @file_transporter = nil
end

#download(remotes, local) ⇒ Object

Download remote files or directories to local host.

Parameters:

  • remotes (Array<String>)

    paths to remote files or directories

  • local (String)

    path to local destination. If `local` is an existing directory, `remote` will be downloaded into the directory using its original name

Raises:

  • (TransportFailed)

    if the files could not all be downloaded successfully, which may vary by implementation


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# File 'lib/kitchen/transport/winrm.rb', line 159

def download(remotes, local)
  # ensure the parent dir of the local target exists
  FileUtils.mkdir_p(File.dirname(local))

  Array(remotes).each do |remote|
    file_manager.download(remote, local)
  end
end

#execute(command) ⇒ Object

Execute a command on the remote host.

Parameters:

  • command (String)

    command string to execute

Raises:

  • (TransportFailed)

    if the command does not exit successfully, which may vary by implementation


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# File 'lib/kitchen/transport/winrm.rb', line 104

def execute(command)
  return if command.nil?

  logger.debug("[WinRM] #{self} (#{command})")

  exit_code, stderr = execute_with_exit_code(command)

  if logger.debug? && exit_code == 0
    log_stderr_on_warn(stderr)
  elsif exit_code != 0
    log_stderr_on_warn(stderr)
    raise Transport::WinrmFailed.new(
      "WinRM exited (#{exit_code}) for command: [#{command}]",
      exit_code
    )
  end
end

#file_managerWinrm::FileManager

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a file transporter.

Returns:

  • (Winrm::FileManager)

    a file transporter


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# File 'lib/kitchen/transport/winrm.rb', line 170

def file_manager
  @file_manager ||= WinRM::FS::FileManager.new(connection)
end

#login_commandLoginCommand

Builds a LoginCommand which can be used to open an interactive session on the remote host.

Returns:

  • (LoginCommand)

    an object containing the array of command line tokens and exec options to be used in a fork/exec

Raises:


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# File 'lib/kitchen/transport/winrm.rb', line 139

def 
  case RbConfig::CONFIG["host_os"]
  when /darwin/
    
  when /mswin|msys|mingw|cygwin|bccwin|wince|emc/
    
  when /linux/
    
  else
    raise ActionFailed, "Remote login not supported in #{self.class} " \
      "from host OS '#{RbConfig::CONFIG["host_os"]}'."
  end
end

#retry?(current_try, max_retries, retryable_exit_codes, exception) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/kitchen/transport/winrm.rb', line 122

def retry?(current_try, max_retries, retryable_exit_codes, exception)
  # Avoid duplicating Kitchen::Transport::Base#retry?
  result = super
  return result if result == true

  case exception
  when WinRM::WinRMHTTPTransportError
    return current_try <= max_retries &&
        [400, 500].include?(exception.status_code)
  when WinRM::WinRMWSManFault
    return current_try <= max_retries
  end

  false
end

#upload(locals, remote) ⇒ Object

Uploads local files or directories to remote host.

Parameters:

  • locals (Array<String>)

    paths to local files or directories

  • remote (String)

    path to remote destination

Raises:

  • (TransportFailed)

    if the files could not all be uploaded successfully, which may vary by implementation


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# File 'lib/kitchen/transport/winrm.rb', line 154

def upload(locals, remote)
  file_transporter.upload(locals, remote)
end

#wait_until_readyObject

Block and return only when the remote host is prepared and ready to execute command and upload files. The semantics and details will vary by implementation, but a round trip through the hosted service is preferred to simply waiting on a socket to become available.


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# File 'lib/kitchen/transport/winrm.rb', line 175

def wait_until_ready
  delay = 3
  unelevated_session(
    retry_limit: max_wait_until_ready / delay,
    retry_delay: delay
  )
  execute(PING_COMMAND.dup)
rescue *RESCUE_EXCEPTIONS_ON_ESTABLISH => e
  retries ||= connection_retries.to_i
  raise e if (retries -= 1) < 0

  logger.debug("[WinRM] PING_COMMAND failed. Retrying...")
  logger.debug("#{e.class}::#{e.message}")
  sleep(connection_retry_sleep.to_i)
  retry
end