Docker

# File lib/docker.rb, line 103
def authenticate!(options = {}, connection = connection)
  creds = options.to_json
  connection.post('/auth', {}, :body => creds)
  @creds = creds
  true
rescue Docker::Error::ServerError, Docker::Error::UnauthorizedError
  raise Docker::Error::AuthenticationError
end

# File lib/docker.rb, line 78
def connection
  @connection ||= Connection.new(url, options)
end

# File lib/docker.rb, line 34
def default_socket_url
  'unix:///var/run/docker.sock'
end

# File lib/docker.rb, line 42
def env_options
  if cert_path = ENV['DOCKER_CERT_PATH']
    {
      client_cert: File.join(cert_path, 'cert.pem'),
      client_key: File.join(cert_path, 'key.pem'),
      ssl_ca_file: File.join(cert_path, 'ca.pem'),
      scheme: 'https'
    }
  else
    {}
  end
end

# File lib/docker.rb, line 38
def env_url
  ENV['DOCKER_URL'] || ENV['DOCKER_HOST']
end

# File lib/docker.rb, line 98
def info(connection = self.connection)
  Util.parse_json(connection.get('/info'))
end

# File lib/docker.rb, line 64
def options
  @options ||= env_options
end

# File lib/docker.rb, line 73
def options=(new_options)
  @options = env_options.merge(new_options || {})
  reset_connection!
end

# File lib/docker.rb, line 82
def reset!
  @url = nil
  @options = nil
  reset_connection!
end

# File lib/docker.rb, line 88
def reset_connection!
  @connection = nil
end

# File lib/docker.rb, line 55
def url
  @url ||= env_url || default_socket_url
  # docker uses a default notation tcp:// which means tcp://localhost:2375
  if @url == 'tcp://'
    @url = 'tcp://localhost:2375'
  end
  @url
end

# File lib/docker.rb, line 68
def url=(new_url)
  @url = new_url
  reset_connection!
end

# File lib/docker.rb, line 114
def validate_version!
  Docker.info
  true
rescue Docker::Error::DockerError
  raise Docker::Error::VersionError, "Expected API Version: #{API_VERSION}"
end

# File lib/docker.rb, line 93
def version(connection = self.connection)
  Util.parse_json(connection.get('/version'))
end