terraform-aws-lambda-python's Introduction

Terraform module for AWS Lambda Python function deployment

Terraform module which prepares and deploys python lambda function and prepares all necessities for it in AWS infrastructure.

Features

Downloads python dependencies from requirements.txt to lambda/lib directory
Archives lambda function with all dependencies into lambda.zip
Creates IAM policy, lambda function, API Gateway and CloudWatch log group
Creates IAM policy with additional rules
Deploy lambda function
Possible to use with python virtualenv

Usage

Preparation

Put logic into lambda_handler in lambda/main.py
Put your Lambda function requirements into requirements.txt

Configuration example

module "lambda_python" {
  source            = "express42/lambda-python/aws"

  aws_profile       = "default"
  aws_region        = "eu-west-1"

  pip_path          = "/usr/bin/pip"

  lambda_name       = "lambda_example"
  lambda_api_name   = "lambda_example_api"
  lambda_iam_name   = "lambda_example_iam"

  api_stage_name    = "dev"
  api_resource_path = "example"
  api_http_method   = "POST"
  
  iam_additional_policy = <<POLICY
  {
    "Version": "2012-10-17",
    "Statement": [
      {
        "Effect": "Allow",
        "Action": [
          "dynamodb:BatchGetItem",
          "dynamodb:GetItem",
          "dynamodb:Query",
          "dynamodb:Scan",
          "dynamodb:BatchWriteItem",
          "dynamodb:PutItem",
          "dynamodb:UpdateItem"
        ],
        "Resource": "arn:aws:dynamodb:*"
      }
    ]
  }
  POLICY
}

output "lambda_url" {
  value = "${module.lambda_python.url}"
}