5章：Bicep what-if チェックの追加 (#93)

* Add bicep what-if workflow
* Add what-if step to Azure CLI workflow

.github/workflows/5.what-if.yml

@@ -0,0 +1,27 @@
+name: bicep what-if
+
+on: push
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Login azure
+        uses: azure/login@v1
+        with:
+          creds: ${{ secrets.AZURE_CREDENTIALS }} 
+          enable-AzPSSession: true
+
+      - name: what-if using Azure CLI
+        run: |
+          results=$(az deployment sub what-if --template-file "./5.internal-document-search/infra/main.bicep" --location JapanEast -p vmLoginPassword=dummy -p resourceGroupName=rg-${{ github.run_id }} -p isPrivateNetworkEnabled=false -p environmentName=${{ github.run_id }} -p location=japaneast)
+          echo "$results"
+
+          # Check if "Error" is present in $results
+          if echo "$results" | grep "Error"; then
+          echo "Error found in what-if results. Exiting..."
+          exit 1
+          fi