text: S3_KEY_JUPYTER = 's3://YourPathTo/juypter_notebook_config.py'
  S3_KEY_INSTALL = 's3://YourPathTo/certificate_and_s3fsfuse.sh'
  
  
  SecurityGroup = t.add_resource(
      ec2.SecurityGroup(
          'simpleSg',
          GroupDescription='Simple Security Group: Enable SSH access via port 22',
          SecurityGroupIngress=[ec2.SecurityGroupRule(IpProtocol='tcp',
                                                      FromPort='22',
                                                      ToPort='22',
                                                      CidrIp='0.0.0.0/0')
                                          ]
      )
  )
  
  ec2_instance = t.add_resource(ec2.Instance(
      'Ec2Instance',
      ImageId = "ami-999844e0",
      InstanceType = 't2.micro', # for testing
      SecurityGroupIds = [GetAtt('simpleSg', 'GroupId')],
      Tags=[{"Key" : "Name", "Value" : "deep_learning_EC2"}],
      KeyName = 'YourPemKeyName',
      SubnetId = 'YourSubNetID', # e.g. ' eu-west-1a'
      IamInstanceProfile = Ref(instance_profile),
      UserData = Base64(
                       Join(
                           '',
                           ['#!/bin/bash -xe \n',
                            'cd /home/ec2-user \n',
                            'mkdir -p /mnt/jupyter-notebooks \n',
                            'chmod 777 /mnt/jupyter-notebooks \n',
                            'su ec2-user -c "aws s3 cp ', S3_KEY_JUPYTER_CONF, ' /home/ec2-user/.jupyter/jupyter_notebook_config.py" \n',
                            'su ec2-user -c "aws s3 cp ', S3_KEY_INSTALL, ' /home/ec2-user/certificate_and_s3fuse.sh" \n',
                            'sh /home/ec2-user/certificate_and_s3fuse.sh  \n',
                            'cd /mnt/jupyter-notebooks \n',
                            'su ec2-user -c "jupyter notebook" \n'
                            ])
                 )
  ))
  