DEPRECATION WARNING

This module is lacking active maintainance and is being deprecated. Users are encouraged to migrate to the actively maintained https://github.com/terraform-aws-modules/terraform-aws-lambda community module. This repository will be marked as archived but will stay online for the foreseeable future.

terraform-aws-lambda

This Terraform module creates and uploads an AWS Lambda function and hides the ugly parts from you.

Features

Only appears in the Terraform plan when there are legitimate changes.
Creates a standard IAM role and policy for CloudWatch Logs.
- You can add additional policies if required.
Zips up a source file or directory.
Installs dependencies from requirements.txt for Python functions.
- It only does this when necessary, not every time.

Requirements

Python 2.7 or higher
Linux/Unix/Windows

Terraform version compatibility

Module version	Terraform version
1.x.x	0.12.x
0.x.x	0.11.x

Usage

module "lambda" {
  source = "github.com/claranet/terraform-aws-lambda"

  function_name = "deployment-deploy-status"
  description   = "Deployment deploy status task"
  handler       = "main.lambda_handler"
  runtime       = "python3.6"
  timeout       = 300

  // Specify a file or directory for the source code.
  source_path = "${path.module}/lambda.py"

  // Add additional trusted entities for assuming roles (trust relationships).
  trusted_entities = ["events.amazonaws.com", "s3.amazonaws.com"]

  // Attach a policy.
  policy = {
    json = data.aws_iam_policy_document.lambda.json
  }

  // Add a dead letter queue.
  dead_letter_config = {
    target_arn = aws_sqs_queue.dlq.arn
  }

  // Add environment variables.
  environment = {
    variables = {
      SLACK_URL = var.slack_url
    }
  }

  // Deploy into a VPC.
  vpc_config = {
    subnet_ids         = [aws_subnet.test.id]
    security_group_ids = [aws_security_group.test.id]
  }
}

Inputs

Inputs for this module are the same as the aws_lambda_function resource with the following additional arguments:

Name	Description	Type	Default	Required
source_path	The absolute path to a local file or directory containing your Lambda source code	`string`		yes
build_command	The command to run to create the Lambda package zip file	`string`	`"python build.py '$filename' '$runtime' '$source'"`	no
build_paths	The files or directories used by the build command, to trigger new Lambda package builds whenever build scripts change	`list(string)`	`["build.py"]`	no
cloudwatch_logs	Set this to false to disable logging your Lambda output to CloudWatch Logs	`bool`	`true`	no
lambda_at_edge	Set this to true if using Lambda@Edge, to enable publishing, limit the timeout, and allow edgelambda.amazonaws.com to invoke the function	`bool`	`false`	no
policy	An additional policy to attach to the Lambda function role	`object({json=string})`		no
trusted_entities	Additional trusted entities for the Lambda function. The lambda.amazonaws.com (and edgelambda.amazonaws.com if lambda_at_edge is true) is always set	`list(string)`		no
enabled	Enabling and disaling of resources	`bool`	`true`	no

The following arguments from the aws_lambda_function resource are not supported:

filename (use source_path instead)
role (one is automatically created)
s3_bucket
s3_key
s3_object_version
source_code_hash (changes are handled automatically)

Outputs

Name	Description
function_arn	The ARN of the Lambda function
function_invoke_arn	The Invoke ARN of the Lambda function
function_name	The name of the Lambda function
function_qualified_arn	The qualified ARN of the Lambda function
role_arn	The ARN of the IAM role created for the Lambda function
role_name	The name of the IAM role created for the Lambda function