Master AWS Secrets Manager for RDS and Lambda

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Table of Contents

Master AWS Secrets Manager for RDS and Lambda

Table of Contents

  1. Introduction
  2. Creating the RDS Database
  3. Storing a Secret in Secrets Manager
  4. Retrieving the Secret Using Lambda
  5. Testing the Functionality
  6. Monitoring CloudWatch Logs
  7. Cleaning Up
  8. Conclusion

Introduction

In this article, we will explore how to securely retrieve secrets from an RDS database using AWS Secrets Manager and Lambda functions. We will walk through the process of creating an RDS database, storing a secret in Secrets Manager, and retrieving the secret using a Lambda function. We will also cover how to test the functionality and monitor the CloudWatch logs. Finally, we will discuss the importance of cleaning up after the testing.

Creating the RDS Database

First, let's start by creating the RDS database. We will choose the MySQL option and select the free tier. We will provide a name for the database, set a username and password, and adjust the storage and other settings according to our requirements. Once the database is created and active, we can proceed to the next step.

Storing a Secret in Secrets Manager

Next, we will store a secret in AWS Secrets Manager. We will select the Amazon RDS option and choose our database. We will provide the username and password associated with the database. We can leave the encryption key as the default option or add a new key if needed. We will give a name to our secret and optionally add a description. We can enable automatic rotation if required. Once all the settings are configured, we can proceed to store the secret.

Retrieving the Secret Using Lambda

To retrieve the secret from Secrets Manager, we will Create a Lambda function. We will choose the node.js16 runtime and provide the necessary permissions for accessing Secrets Manager and CloudWatch logs. We will then paste the code provided in the article into the Lambda function. Once the code is deployed, we can move on to testing the functionality.

Testing the Functionality

To test the functionality, we will create a test event in Lambda. We can use the standard template or customize it according to our requirements. Once the test event is created, we can run the test and observe the output. We can also monitor the CloudWatch logs to ensure that the secret is retrieved and logged correctly.

Monitoring CloudWatch Logs

Monitoring the CloudWatch logs is crucial for tracking the retrieval of secrets and identifying any issues. We can navigate to the CloudWatch logs section and view the log group and stream created by the Lambda function. We can expand the information to see the details of the secret retrieval and ensure that everything is functioning properly.

Cleaning Up

After testing the functionality, it is essential to clean up the resources to avoid any unnecessary costs or security risks. We should delete the RDS database and the secret stored in Secrets Manager. This step ensures that no sensitive information is left exposed and helps maintain a clean and secure environment.

Conclusion

In this article, we have discussed the process of securely retrieving secrets from an RDS database using AWS Secrets Manager and Lambda functions. We have covered the steps of creating the RDS database, storing a secret in Secrets Manager, retrieving the secret using a Lambda function, testing the functionality, monitoring CloudWatch logs, and cleaning up the resources. By following these steps, users can ensure the secure management of their secrets while leveraging the power of AWS services.

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