AWS Lambda Terraform Module

This module will deploy a Lambda function. It supports both Zip and Image deployments.

NOTE 1: if image_uri is set then ECR Image will be deployed regardless of what Zip deployment properties are set to.

NOTE 2: if both security_group_ids and subnet_ids are empty then the Lambda will not have access to resources within a VPC.

Module input variables (shared)

• function_name - (string) - REQUIRED - The name of the Lambda function.
• lambda_env - (map) - Environment parameters passed to the Lambda function.
• lambda_role_policy (string) - The Lambda IAM Role Policy.
• log_subscription_filter - (string) - Subscription filter to filter logs sent to datadog.
• memory_size (number) - Amount of memory in MB your Lambda Function can use at runtime.
• security_group_ids - (list) - The VPC security groups assigned to the Lambda.
• subnet_ids - (list) - The VPC subnets in which the Lambda runs.
• timeout (number) - The maximum time in seconds that the Lambda can run for.
• reserved_concurrent_executions (number) - The amount of reserved concurrent executions for this lambda function.
• tags (map) - A mapping of tags to assign to this lambda function.
• datadog_log_subscription_arn - (string) - Log subscription arn for shipping logs to datadog.
• architectures - (list) - List of architectures to support for the Lambda function.
• use_default_security_group - (bool) - Use the default security group for the Lambda function.
• vpc_id - (string) - The VPC ID in which the Lambda runs.

Zip deployment variables

• runtime - (string) - REQUIRED - The runtime environment for the Lambda function you are uploading.
• handler - (map) - REQUIRED - The function within your code that Lambda calls to begin execution.
• s3_bucket - (string) - REQUIRED - The name of the bucket containing your uploaded Lambda deployment package.
• s3_key - (string) - REQUIRED - The s3 key for your Lambda deployment package.
• layers - (list) - ARNs of the layers to attach to the lambda function in order.

Image deployment variables

• image_uri - (string) - REQUIRED - Uri to the image in ECR repo.
• image_config_command - (list) - List of values with which to override CMD entry in the image.
• image_config_entry_point - (list) - List of values with which to override ENTRYPOINT entry in the image.
• image_config_working_directory - (string) - Value with which to override WORKDIR entry in the image.

Usage

module "lambda" {
  source        = "mergermarket/aws-lambda/acuris"
  version       = "1.0.1"
  function_name = "do_foo"
  handler       = "do_foo_handler"
  runtime       = "nodejs"
  s3_bucket     = "s3_bucket_name"
  s3_key        = "s3_key_for_lambda"
  timeout       = 5
  memory_size   = 256
  lambda_env    = "${var.lambda_env}"
  architectures = ["x86_64"]
  use_default_security_group = true
  vpc_id = module.platform_config.config["vpc"]
}

Lambda environment variables file:

{
  "lambda_env": {
    "environment_name": "ci-testing"
  }
}