You are using Elastic beanstalk to deploy an application that consists of a web and application server. There is a requirement to run some python scripts before the application version is deployed to the web server. Which of the following can be used to achieve this?

Answer options:

A.Make use of container commands
B.Make use of Docker containers
C.Make use of custom resources
D.Make use of multiple elastic beanstalk environments

Answer - A
The AWS Documentation mentions the following
You can use the container_commands key to execute commands that affect your application source code. Container commands run after the application and web server have been set up and the application version archive has been extracted, but before the application version is deployed. Non-container commands and other customization operations are performed prior to the application source code being extracted.
For more information on Container commands, please visit the below URL:
http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/customize-containers-ec2.html