Method: Docker::Compose::Mapper#host_and_port

Defined in:
lib/docker/compose/mapper.rb

#host_and_port(service, port) ⇒ Array

Figure out which host port a given service’s port has been published to, and/or whether that service is running. Cannot distinguish between the “service not running” case and the “container port not published” case!

Returns:

  • (Array) —

    (String, Integer) pair of host address and port number

Raises:

  • (NoService) —

    if service is not up or does not publish port


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# File 'lib/docker/compose/mapper.rb', line 102

def host_and_port(service, port)
  result = @session.port(service, port.to_s)
  if result
    result.chomp!
  else
    raise NoService,
          "Service '#{service}' not running, or does not " \
          "publish port '#{port}'"
  end

  host, port = result.split(':')
  host = @override_host if @override_host

  [host, Integer(port)]
end