2. In IRB console : require 'aws/s3'
3.
AWS::S3::Base.establish_connection!(access_key_id: 'abcd', secret_access_key: 'secret')
AWS::S3::Service.buckets
AWS::S3::Bucket.find('your-existing-bucket-name')
It would be nice to steal code from aws-s3 gem to test if the credentials is valid or not.
