ci: add GitHub Actions workflow for terraform validate and lint

Author: kazmithub

.github/workflows/terraform-ci.yml

@@ -0,0 +1,47 @@
+name: Terraform CI
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  terraform:
+    name: Terraform Validate & Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Terraform
+        uses: hashicorp/setup-terraform@v3
+        with:
+          terraform_version: 1.7.0
+
+      - name: Terraform Format Check
+        run: terraform fmt -check -recursive
+
+      - name: Terraform Init
+        run: terraform init -backend=false
+
+      - name: Terraform Validate
+        run: terraform validate
+
+      - name: Setup TFLint
+        uses: terraform-linters/setup-tflint@v4
+
+      - name: Run TFLint
+        run: tflint --recursive
+
+      - name: Run Checkov
+        uses: bridgecrewio/checkov-action@v12
+        with:
+          directory: .
+          quiet: true
+          soft_fail: true