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Lambda function

Upon launching the following resources will be created:

• Lambda function
• Default CW log group: OPTIONAL

Dependencies and Prerequisites

• Terraform v1.0.0 or higher
• AWS account

Providers

Name	Version
aws	>= 5.0.0

Modules

No modules.

Resources

Name	Type
aws_cloudwatch_log_group.loggroup	resource
aws_lambda_function.function	resource

Inputs

Name	Description	Type	Default	Required
create_default_log_group	OPTIONAL: Whether to create default log group. Set to 1 to create	number	1	no
environment_vars	Map of environment variables	map(string)	null	no
ephemeral_storage	The amount of Ephemeral storage(/tmp) to allocate for the Lambda Function in MB.	number	"512"	no
function	Lambda function variables - merged will locals to create configuration	map(any)	null	no
locals_function	n/a	object({ filename = string name = string role = string handler = string runtime = string timeout = number memory_size = number reserved_concurrent_executions = number source_code_hash = string publish = bool package_type = string })	{ "filename": null, "handler": null, "memory_size": 128, "name": null, "package_type": "Zip", "publish": true, "reserved_concurrent_executions": -1, "role": null, "runtime": "java11", "source_code_hash": null, "timeout": 60 }	no
locals_s3	n/a	object({ bucket = string key = string object_version = string })	{ "bucket": null, "key": null, "object_version": null }	no
region	n/a	string	"eu-west-1"	no
retention_in_days	Log retention in dayes	number	7	no
s3	OPTIONAL: s3 object to specify function location in s3 - merged with locals to create configuration	map(any)	null	no
security_group_ids	OPTIONAL: The VPC security groups to assign to the Lambda.	list(string)	[]	no
subnet_ids	OPTIONAL: The VPC subnets in which the Lambda runs.	list(string)	[]	no
tags	Tags to assign to the Function	map(string)	{}	no
tracing_config	Tracing config. Can be either PassThrough or Active	string	"Active"	no

Outputs

Name	Description
lambda_function	n/a

Usage

To import the module add the following to your TF file:

module "lambda" {
  source  = "Cloud-42/lambda/aws"
  version = "3.1.0"  # Or required version
  function = ({
    name        = var.function_name
    role        = var.function_role
    handler     = var.handler
    filename    = "./lambda.zip"
    runtime     = "python3.9"
    memory_size = "512"
    timeout     = "600"
  })

  ephemeral_storage = "10240"

  s3 = ({
    bucket = "my-s3-source-bucket"
    key    = "file.jar.zip"
  })

  environment_vars = {
    ENV_VAR = "${var.ENV_VAR}"
  }
}

• To initialise the module run: terraform init
• To update the module run : terraform get --update
• To see a plan of changes : terraform plan
• To apply : terraform apply
• To automatically apply : terraform apply --auto-approve