Added GitHub Actions workflow for Terraform

.github/workflows/terraform.yml

@@ -0,0 +1,36 @@
+name: Terraform Workflow
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  terraform:
+    name: Terraform Plan and Apply
+    runs-on: ubuntu-latest
+
+    env:
+      AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+      AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+      AWS_DEFAULT_REGION: "us-east-1"
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+
+      - name: Set up Terraform
+        uses: hashicorp/setup-terraform@v2
+
+      - name: Terraform Init
+        run: terraform init
+
+      - name: Terraform Plan
+        run: terraform plan
+
+      - name: Terraform Apply
+        if: github.ref == 'refs/heads/main'
+        run: terraform apply -auto-approve