Merge pull request #24 from lorenzoaiello/feat/0.13-upgrade

refactor: TF 0.13 upgrade and compatibility checks

.github/workflows/validate.yml

@@ -0,0 +1,26 @@
+name: Terraform Validate
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  validate:
+    name: Validate
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Setup Terraform
+        uses: hashicorp/setup-terraform@v1
+
+      - name: Terraform Init
+        run: terraform init
+
+      - name: Terraform Validate
+        run: terraform validate

README.md

@@ -4,7 +4,9 @@ This Terraform module manages Cloudwatch Alarms for an RDS instance. It does NOT
 
 **Requires**:
 - AWS Provider
-- Terraform 0.12
+- Terraform 0.13 or higher
+
+If you need Terraform 0.12, you should use version `2.x` of this module and contribute changes to the `tf-0.12` branch.
 
 ## Alarms Created
 

versions.tf

@@ -0,0 +1,3 @@
+terraform {
+  required_version = ">= 0.13"
+}