Connect Elastic Beanstalk to PostgreSQL RDS Database
Question
Your team is using AWS Elastic Beanstalk for web applications in a production environment.
The project needs to read/write to a PostgreSQL RDS database in another production environment as well.
Apart from this, the AWS Elastic Beanstalk also uses Immutable deployment and entirely new instances need to be created for new deployments.
Among the options provided which one do you suggest to connect to RDS database for this Elastic Beanstalk environment?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.Option D is Correct:
AWS Elastic Beanstalk provides support for running Amazon Relational Database Service (Amazon RDS) instances in your Elastic Beanstalk environment.
This works great for development and testing environments.
However, it isn't ideal for a production environment because it ties the lifecycle of the database instance to the lifecycle of your application's environment.
For more information, refer to.
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/AWSHowTo.RDS.htmlOption A is incorrect because it is still possible for the production environment.
Option B is incorrect: because this is a proper way if it is for development and test.
However this question talks about the Elastic Beantalk environment for a production.
For how to connect to the RDS in a Elastice Beanstalk environment, please refer to https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.managing.db.html#using-features.managing.db.CON.
Option C is incorrect: because you can use Elastic Beanstalk to add a MySQL, PostgreSQL, Oracle, or SQL Server database to your environment during or after environment creation.
In this case, we should put the RDS instance outside of the Elastic Beanstalk environment.
Option B is the correct answer for this scenario. Elastic Beanstalk is a fully managed service offered by AWS to deploy web applications easily and quickly. It simplifies the deployment process by taking care of the infrastructure for you. However, connecting to RDS databases from Elastic Beanstalk can be tricky because of the immutable deployment process. Here, we need to choose an option that will allow us to connect to RDS databases without disrupting the immutable deployment process.
Option A is incorrect. Elastic Beanstalk provides a way to connect to RDS instances in production environments using the database configuration card. It is not only possible but also recommended to connect to RDS instances in production environments.
Option C is incorrect. Elastic Beanstalk supports PostgreSQL along with other databases like MySQL, Oracle, and Microsoft SQL Server. It is important to know which databases are supported by Elastic Beanstalk when choosing a database for your web application.
Option D is partially correct. Putting the RDS database outside the Elastic Beanstalk deployment is a good option to maintain the database separately. However, connecting to it on launch may not work because of the immutable deployment process. When new instances are launched, they will not have the same configuration as the previous instances, and thus, connecting to an external database may not work properly.
To connect to RDS databases in Elastic Beanstalk environments, we need to use the database configuration card in the console. This allows us to configure the connection details, including the username, password, and instance class. Once the connection is established, Elastic Beanstalk will handle the connection and provide the necessary environment variables to the application to use the database.
In summary, option B is the correct answer as it provides the necessary steps to connect to RDS databases in Elastic Beanstalk environments. It is important to note that choosing the right database for your web application and understanding the deployment process is crucial when working with Elastic Beanstalk.
