add appspec_filename variable

Author: joshgubler

README.md

@@ -90,6 +90,7 @@ module "lambda_api" {
 | hosted_zone | [object](#hosted_zone) | Hosted Zone object to redirect to ALB. (Can pass in the aws_hosted_zone object). A and AAAA records created in this hosted zone. |
 | https_certificate_arn | string | ARN of the HTTPS certificate of the hosted zone/domain. |
 | codedeploy_lifecycle_hooks | [object](#codedeploy_lifecycle_hooks) | Define Lambda Functions for CodeDeploy lifecycle event hooks. Or set this variable to null to not have any lifecycle hooks invoked. Defaults to null | null
+| appspec_filename | string | Filename (including path) to use when outputing appspec json. | `appspec.json` in the current working directory (i.e. where you ran `terraform apply`) |
 | codedeploy_test_listener_port | number | The port for a codedeploy test listener. If provided CodeDeploy will use this port for test traffic on the new replacement set during the blue-green deployment process before shifting production traffic to the replacement set. Defaults to null | null
 | vpc_id | string | VPC ID to deploy ALB and Lambda (If specified). |
 | public_subnet_ids | list(string) | List of subnet IDs for the ALB. |

main.tf

@@ -332,7 +332,7 @@ resource "aws_iam_role_policy_attachment" "lambda_cloudwatch_attach" {
 
 resource "local_file" "appspec_json" {
   count    = var.use_codedeploy ? 1 : 0
-  filename = "${path.cwd}/appspec.json"
+  filename = var.appspec_filename != null ? var.appspec_filename : "${path.cwd}/appspec.json"
   content = jsonencode({
     version = 1
     Resources = [{

variables.tf

@@ -66,6 +66,12 @@ variable "codedeploy_lifecycle_hooks" {
   default     = null
 }
 
+variable "appspec_filename" {
+  type        = string
+  description = "Filename (including path) to use when outputing appspec json."
+  default     = null
+}
+
 variable "codedeploy_test_listener_port" {
   type        = number
   description = "The port for a codedeploy test listener. If provided CodeDeploy will use this port for test traffic on the new replacement set during the blue-green deployment process before shifting production traffic to the replacement set. Defaults to null"
@@ -120,4 +126,4 @@ variable "memory_size" {
   type        = number
   description = "Memory Size of the lambda"
   default     = 128
-}
+}