OverView :-

Remember the last time you had to manually manage dependencies and libraries for your AWS Lambda functions? Not the most enjoyable part of your day, right? Lambda Layers come to the rescue by allowing you to manage common dependencies more efficiently and Terraform automates provisioning, ensuring that your infrastructure is reproducible and manageable. By the end of this post, you’ll have a clearer understanding of how these tools can work together harmoniously.

Pre-requisites :-

Before we dive into the nitty-gritty, let’s make sure we’re all on the same page regarding what you need to get started:

• AWS Account: First things first, you need an AWS account. If you don’t have one, signing up is easy and comes with a Free Tier usage.

• Basic knowledge of AWS Lambda: Having some background on AWS Lambda and its use cases will go a long way.

• Terraform installed: Ensure Terraform is installed and configured on your machine. There are plenty of tutorials out there if you need a hand with this step.

• Some familiarity with Terraform syntax: A basic understanding of Terraform syntax will make your journey smoother.

Procedure :-

Create a directory with name lambda_layer. Within the folder, create terraform configuration files such as main.tf and provider.tf .

#main.tf
resource "aws_lambda_layer_version" "layers" {
  layer_name = "lambda_layer"
  filename   = "lambda_layer_payload.zip"
  compatible_architectures = ["x86_64"]
  compatible_runtimes = ["python3.9"]
}

#provider.tf
terraform {
  required_providers {
    aws = {
      source = "hashicorp/aws"
      version = "5.54.1"
    }
  }
}

provider "aws" {
  access_key = ""
  secret_key = ""
  region = "us-east-1"
}

1. Open a terminal window & navigate to lambda_layers directory and configure your Aws account credentials.

2. Run terraform init to initialize it. Next run terraform plan and then apply terraform apply to deploy the configuration.

Conclusion :-

Mixing Terraform with Lambda Layers is like peanut butter and jelly — they just make everything better together. By leveraging Terraform for Lambda Layers, you’re not only streamlining the deployment process but also setting yourself up for a more scalable, efficient, and manageable serverless architecture. Remember, the ultimate goal here is to work smarter, not harder, and Terraform is your buddy in achieving that when it comes to managing AWS resources.