Using Elastic Beanstalk for a Legacy Java Application with Nginx - Implementation Guide

Implementing Multidocker Environment in Elastic Beanstalk

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Question

Your R&D team is doing some research on how to use Elastic Beanstalk for a legacy product.

The legacy product is using Java application and also Nginx.

Your AWS solution architect suggests using Multidocker environment.

How should you implement that in the Elastic Beanstalk?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

Option C is Correct:

A Dockerrun.aws.json file is an Elastic Beanstalk-specific JSON file that describes how to deploy a set of Docker containers as an Elastic Beanstalk application.

You can use a Dockerrun.aws.json file for a multicontainer Docker environment.

AWSEBDockerrunVerion is 2 for the multicontainer Docker environments.

For more information, refer to.

https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_docker_v2config.html

Option A is incorrect because dockerfile can be used only for a single docker environment.

Option B is incorrect: because V2 should be used for multi docker environment.

Option D is incorrect: because for docker environment, Dockerrun.aws.json should be used rather than .ebextension config files.

Elastic Beanstalk is a fully managed service that makes it easy to deploy and run applications on AWS. It supports multiple languages, including Java, and can run multiple Docker containers in a single Elastic Beanstalk environment using the Multidocker configuration.

To implement Multidocker environment for a legacy product that uses Java application and Nginx, there are different ways to configure it. The possible answers are:

A. Use two dockerfiles for the multidocker environment. One for Java and one for Nginx. This option involves creating two separate Docker images, one for Java and one for Nginx, and then deploying them to the Elastic Beanstalk environment. This approach requires the use of two Dockerfiles and additional configuration to run both containers in a coordinated way.

B. Use dockerrun.aws.json v1 for the multidocker environment. This file describes the containers to deploy to each container instance. This option involves using the dockerrun.aws.json version 1 file to describe the containers that will be deployed to each container instance. This file specifies the Docker images to be used and the ports that each container will listen on. This approach requires minimal configuration but is limited in terms of flexibility.

C. Use dockerrun.aws.json v2 for the multidocker environment. This file describes the containers to deploy to each container instance. This option involves using the dockerrun.aws.json version 2 file to describe the containers that will be deployed to each container instance. This file provides more advanced features such as environment variables, resource limits, and container links. This approach requires more configuration but provides greater flexibility.

D. Use .ebextension config files to describe the multidocker environment. This option involves using .ebextension configuration files to configure the Elastic Beanstalk environment. These files can be used to install software packages, configure environment variables, and run scripts. This approach provides the most flexibility but requires more advanced knowledge of Elastic Beanstalk configuration.

In summary, the Multidocker environment can be configured in Elastic Beanstalk using multiple approaches, each with its advantages and disadvantages. The best approach depends on the specific requirements of the legacy product and the level of flexibility needed for the configuration.