Class: Train::Transports::Docker::Connection

Inherits:
BaseConnection
  • Object
show all
Defined in:
lib/train/transports/docker.rb

Instance Method Summary collapse

Constructor Details

#initialize(conf) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/train/transports/docker.rb', line 54

def initialize(conf)
  super(conf)
  @id = options[:host]

  docker_url = options[:docker_url]
  if RUBY_PLATFORM =~ /windows|mswin|msys|mingw|cygwin/
    # Docker Desktop for windows. Must override socket location.
    # https://docs.docker.com/desktop/faqs/#how-do-i-connect-to-the-remote-docker-engine-api
    # docker_socket ||= "npipe:////./pipe/docker_engine" # # Doesn't require a settings change, but also doesn't work
    docker_url ||= "tcp://localhost:2375"
  end
  Docker.url = docker_url if docker_url

  @container = ::Docker::Container.get(@id) ||
    raise("Can't find Docker container #{@id}")
  @cmd_wrapper = nil
  @cmd_wrapper = CommandWrapper.load(self, @options)
  @probably_windows = nil
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/train/transports/docker.rb', line 74

def close
  # nothing to do at the moment
end

#unique_identifier ⇒ Object 



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# File 'lib/train/transports/docker.rb', line 86

def unique_identifier
  uuid = @container.nil? ? @id : @container.id # default uuid set to the docker host.
  unless sniff_for_windows?
    cmd = run_command_via_connection("head -1 /proc/self/cgroup|cut -d/ -f3") if file("/proc/self/cgroup").exist?
    unless cmd.stdout.empty?
      uuid = cmd.stdout.strip
    end
  end
  uuid
end

#uri ⇒ Object 



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# File 'lib/train/transports/docker.rb', line 78

def uri
  if @container.nil?
    "docker://#{@id}"
  else
    "docker://#{@container.id}"
  end
end