fix: dev 환경에서 db url 읽기 권한 부여

Author: lvalentine6

terraform/common/locals.tf

@@ -31,6 +31,22 @@ locals {
         "arn:aws:iam::aws:policy/AmazonS3FullAccess",
         "arn:aws:iam::aws:policy/AmazonEC2ContainerRegistryReadOnly"
       ]
+      custom_inline_policies = {
+        ssm_mysql_url_access = {
+          name        = "ssm-mysql-url-access"
+          description = "Allow reading MySQL URL parameter from SSM"
+          policy_document = {
+            Version = "2012-10-17"
+            Statement = [
+              {
+                Effect   = "Allow"
+                Action   = ["ssm:GetParameter"]
+                Resource = "arn:aws:ssm:${data.aws_region.current.name}:${data.aws_caller_identity.current.account_id}:parameter/dev/MYSQL_URL"
+              }
+            ]
+          }
+        }
+      }
       tags = {
         Purpose = "ECS EC2 Registration"
       }