Configuration (1/10)
How do you define and configure Lambda functions?

    Defining and configuring AWS Lambda functions involves creating the function code, setting up triggers, allocating resources, and managing permissions. This can be done through the AWS Management Console, AWS CLI, AWS SDKs, or Infrastructure as Code tools like AWS CloudFormation or Terraform.

    Key Configuration Options for Lambda Functions
    • Function Name – Unique identifier for the function.
    • Runtime – The language runtime (Node.js, Python, Java, etc.).
    • Handler – Entry point to the function (e.g., `index.handler`).
    • Execution Role – IAM role that grants the function permissions.
    • Memory Size – Allocated memory (128 MB to 10 GB) which also affects CPU power.
    • Timeout – Maximum execution time (up to 15 minutes).
    • Environment Variables – Key-value pairs accessible within the code.
    • VPC Settings – Specify VPC, subnets, and security groups for private network access.
    • Layers – Reusable code components or libraries.
    • Triggers – Services/events that invoke the Lambda function (e.g., S3, API Gateway, EventBridge).
    Sample AWS CLI Command to Create a Lambda Function