Update Ruby version on AWS elastic Beanstalk
aws elasticbeanstalk update-environment --solution-stack-name "64bit Amazon Linux 2018.03 v2.8.1 running Ruby 2.3 (Puma)" --environment-name "dev-bg-123456" --region "us-east-1" Check available stacks: aws elasticbeanstalk list-available-solution-stacks { "SolutionStacks": [ "64bit Amazon Linux 2018.03 v4.16.0 running Node.js", "64bit Amazon Linux 2018.03 v2.9.11 running PHP 5.4", "64bit Amazon Linux 2018.03 v2.9.11 running PHP 5.5", "64bit Amazon Linux 2018.03 v2.9.11 running PHP 5.6", "64bit Amazon Linux 2018.03 v2.9.11 running PHP 7.0", "64bit Amazon Linux 2018.03 v2.9.11 running PHP 7.1", "64bit Amazon Linux 2018.03 v2.9.11 running PHP 7.2", "64bit Amazon Linux 2018.03 v2.9.11 running PHP 7.3", "64bit Amazon Linux 2018.03 v2.9.15 running Python 3.6", "64bit Amazon Linux 2018.03 v2.9.15 running Python 3.4", "64bit Amazon Linux 2018