Learn about the customer’s responsibility in AWS Lambda under the AWS Shared Responsibility Model. Discover why managing code within the Lambda function is crucial for security and compliance.
Table of Contents
Question
What is the customer’s responsibility when using AWS Lambda according to the AWS Shared Responsibility Model?
A. Manage the code within the Lambda function
B. Confirm that hardware is functioning in the data center
C. Apply patches to the operating system
D. Turn off Lambda functions when no longer in use
Answer
A. Manage the code within the Lambda function
Under the AWS Shared Responsibility Model, AWS and customers share distinct responsibilities to ensure security and compliance. For AWS Lambda, AWS handles the underlying infrastructure, operating system, and runtime environment. However, customers are responsible for managing specific aspects related to their applications.
Explanation
According to the AWS Shared Responsibility Model, AWS is responsible for the security of the cloud, while customers are responsible for security in the cloud. This means that AWS is responsible for the physical servers, network, and operating system that run the Lambda functions, while customers are responsible for the security of their code and AWS IAM for the Lambda service and within their function.
Customer Responsibilities for AWS Lambda
- Code Management: Customers must ensure that the code within their Lambda function is secure, free of vulnerabilities, and up-to-date. This includes addressing issues like dependency vulnerabilities (e.g., Log4j) and ensuring proper functionality.
- Data Security: Customers are responsible for securing sensitive data processed by their functions, such as encrypting data in transit or at rest.
- IAM Policies: Configuring appropriate Identity and Access Management (IAM) roles and policies to control access to Lambda functions is also a customer responsibility.
- Resource Configuration: Customers manage triggers, permissions, and configurations like subnets or file system access for their Lambda functions.
Why Other Options Are Incorrect
B. Confirm that hardware is functioning in the data center: AWS manages all physical infrastructure, including hardware maintenance and data center operations.
C. Apply patches to the operating system: AWS handles operating system updates and runtime environment patches for Lambda.
D. Turn off Lambda functions when no longer in use: While customers can delete unused functions, this is not a mandated responsibility under the shared responsibility model.
By focusing on managing their application code and configurations, customers can ensure secure and efficient use of AWS Lambda while leveraging AWS’s managed infrastructure.
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