added ecr module to terraform repo

infrastructure/terraform/main.tf

@@ -98,4 +98,10 @@ module "route53" {
   providers = {
     aws.aws_use1 = aws.aws_use1
   }
-}
+}
+
+# Create an ECR repository for storage of the lambda's docker images
+module "ecr" {
+  source = "./modules/ecr"
+  environment = var.stage
+}

infrastructure/terraform/modules/ecr/main.tf

@@ -0,0 +1,29 @@
+resource "aws_ecr_repository" "my_repository" {
+  name                 = "fastapi-repository-${var.environment}"
+  image_tag_mutability = "MUTABLE"        # Allows overwriting image tags, change to IMMUTABLE if you want to prevent overwriting
+
+  image_scanning_configuration {
+    scan_on_push = true
+  }
+}
+
+resource "aws_ecr_lifecycle_policy" "my_repository_policy" {
+  repository = aws_ecr_repository.my_repository.name
+
+  policy = jsonencode({
+    rules = [
+      {
+        rulePriority = 1
+        description  = "Retain only the last 10 images"
+        selection = {
+          tagStatus   = "any"
+          countType   = "imageCountMoreThan"
+          countNumber = 10
+        }
+        action = {
+          type = "expire"
+        }
+      }
+    ]
+  })
+}

infrastructure/terraform/modules/ecr/outputs.tf

@@ -0,0 +1,4 @@
+output "ecr_repository_name" {
+  description = "Name of the EPR repo in AWS"
+  value       = aws_ecr_repository.my_repository.name
+}

infrastructure/terraform/modules/ecr/variables.tf

@@ -0,0 +1,4 @@
+variable "environment" {
+  description = "The environment for the ECR repository (dev or prod)"
+  type        = string
+}