additional arguments which are useful memory_size and retry_duration …

…added (#45)

main.tf

@@ -25,6 +25,7 @@ resource "aws_kinesis_firehose_delivery_stream" "kinesis_firehose" {
     hec_acknowledgment_timeout = var.hec_acknowledgment_timeout
     hec_endpoint_type          = var.hec_endpoint_type
     s3_backup_mode             = var.s3_backup_mode
+    retry_duration             = var.kinesis_firehose_retry_duration
 
     s3_configuration {
       role_arn           = aws_iam_role.kinesis_firehose.arn
@@ -307,6 +308,7 @@ resource "aws_lambda_function" "firehose_lambda_transform" {
   handler                        = local.lambda_function_handler
   source_code_hash               = data.archive_file.lambda_function.output_base64sha256
   runtime                        = var.nodejs_runtime
+  memory_size                    = var.lambda_function_memory_size
   timeout                        = var.lambda_function_timeout
   reserved_concurrent_executions = var.lambda_reserved_concurrent_executions
   kms_key_arn                    = var.lambda_function_environment_variables != {} ? var.lambda_kms_key_arn : null

variables.tf

@@ -33,6 +33,12 @@ variable "firehose_name" {
   type        = string
 }
 
+variable "kinesis_firehose_retry_duration" {
+  description = "After an initial failure to deliver to Splunk, the total amount of time, in seconds between 0 to 7200, during which Firehose re-attempts delivery (including the first attempt). After this time has elapsed, the failed documents are written to Amazon S3. The default value is 300s. There will be no retry if the value is 0"
+  type        = number
+  default     = 300 # Seconds
+}
+
 variable "kinesis_firehose_buffer" {
   description = "https://www.terraform.io/docs/providers/aws/r/kinesis_firehose_delivery_stream.html#buffer_size"
   type        = number
@@ -146,6 +152,12 @@ variable "lambda_function_name" {
   default     = "kinesis-firehose-transform"
 }
 
+variable "lambda_function_memory_size" {
+  description = "Amount of memory in MB which Lambda Function can use at runtime. Defaults to 128"
+  type        = number
+  default     = 128
+}
+
 variable "lambda_function_timeout" {
   description = "The function execution time at which Lambda should terminate the function."
   type        = number