Final answer:
Elastic Beanstalk provides preconfigured Docker platforms on Amazon Linux 2 and Windows Server 2019, allowing easy deployment of containerized applications with the benefits of AWS services for management tasks.
Step-by-step explanation:
The preconfigured Docker platforms in Elastic Beanstalk are Amazon Linux 2 and Windows Server 2019. Amazon Elastic Beanstalk supports deployments of applications that are packaged as Docker containers. When using Docker with Elastic Beanstalk, you can leverage the power of containers and the simplicity of AWS services to handle tasks such as load balancing, monitoring, and scaling.
For Amazon Linux 2, Elastic Beanstalk uses the Amazon Linux 2 Docker platform, whereas for Windows environments, the Windows Server 2019 with Docker platform is utilized. It's worth noting that AWS continuously updates and adds new platform versions for Elastic Beanstalk, so it is always a good idea to check the latest AWS documentation for the most current information. Neither Amazon Linux (without the 2) nor Ubuntu are offered as preconfigured options.