Add EC2 host in sandbox

[sbc (Saturnino Buenaposada)]

Hi, yes, now connect to aws:.

# gem install aws-sdk-v1

# gem uninstall aws-sdk

Select gem to uninstall:

1. aws-sdk-1.33.0
2. aws-sdk-1.50.0
3. aws-sdk-1.57.0
4. aws-sdk-2.0.29
5. All versions
   4