chore: better environment variable format

Author: Rishang

main.tf

@@ -36,9 +36,9 @@ locals {
   dockerLabels          = jsonencode(var.dockerLabels)
   dockerSecurityOptions = jsonencode(var.dockerSecurityOptions)
   entryPoint            = jsonencode(var.entryPoint)
-  environment           = jsonencode(var.environment)
   extraHosts            = jsonencode(var.extraHosts)
 
+  environment = jsonencode(var.environment != {} ? [for k, v in var.environment : { "name" : k, "value" : v }] : [])
   healthCheck = replace(jsonencode(var.healthCheck), local.classes["digit"], "$1")
 
   links = jsonencode(var.links)

test/varfile.tfvars

@@ -1,9 +1,6 @@
-environment = [
-  {
-    name  = "AWS_DEFAULT_REGION"
-    value = "us-east-1"
-  },
-]
+environment = {
+  "AWS_DEFAULT_REGION" = "us-east-1"
+}
 
 family = "default"
 

variables.tf

@@ -49,9 +49,9 @@ variable "entryPoint" {
 }
 
 variable "environment" {
-  default     = []
+  default     = {}
   description = "The environment variables to pass to a container"
-  type        = list(map(string))
+  type        = map(string)
 }
 
 variable "essential" {