Create main.yml

To create a GitHub Action that builds the WebApp.Dockerfile and pushes it to an Azure Container Registry when a PR is approved.

Author: hunterjam

.github/workflows/main.yml

@@ -0,0 +1,32 @@
+name: Build and Push Docker Image
+
+on:
+  pull_request:
+    types: [closed]
+    branches:
+      - main
+  workflow_dispatch: # Add this line to enable manual triggering
+
+jobs:
+  build-and-push:
+    if: github.event.pull_request.merged == true || github.event_name == 'workflow_dispatch'
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Log in to Azure Container Registry
+        uses: azure/docker-login@v1
+        with:
+          login-server: ${{ secrets.ACR_LOGIN_SERVER }}
+          username: ${{ secrets.ACR_USERNAME }}
+          password: ${{ secrets.ACR_PASSWORD }}
+
+      - name: Build and push Docker image
+        run: |
+          docker build -t ${{ secrets.ACR_LOGIN_SERVER }}/webapp:latest -f WebApp.Dockerfile .
+          docker push ${{ secrets.ACR_LOGIN_SERVER }}/webapp:latest