Add or update the Azure App Service build and deployment workflow config

Author: Nishant2018

.github/workflows/main_textgenerationgpt2.yml

@@ -0,0 +1,78 @@
+# Docs for the Azure Web Apps Deploy action: https://github.com/Azure/webapps-deploy
+# More GitHub Actions for Azure: https://github.com/Azure/actions
+# More info on Python, GitHub Actions, and Azure App Service: https://aka.ms/python-webapps-actions
+
+name: Build and deploy Python app to Azure Web App - textgenerationgpt2
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python version
+        uses: actions/setup-python@v1
+        with:
+          python-version: '3.11'
+
+      - name: Create and start virtual environment
+        run: |
+          python -m venv venv
+          source venv/bin/activate
+      
+      - name: Install dependencies
+        run: pip install -r requirements.txt
+        
+      # Optional: Add step to run tests here (PyTest, Django test suites, etc.)
+
+      - name: Zip artifact for deployment
+        run: zip release.zip ./* -r
+
+      - name: Upload artifact for deployment jobs
+        uses: actions/upload-artifact@v3
+        with:
+          name: python-app
+          path: |
+            release.zip
+            !venv/
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: build
+    environment:
+      name: 'Production'
+      url: ${{ steps.deploy-to-webapp.outputs.webapp-url }}
+    permissions:
+      id-token: write #This is required for requesting the JWT
+
+    steps:
+      - name: Download artifact from build job
+        uses: actions/download-artifact@v3
+        with:
+          name: python-app
+
+      - name: Unzip artifact for deployment
+        run: unzip release.zip
+
+      
+      - name: Login to Azure
+        uses: azure/login@v1
+        with:
+          client-id: ${{ secrets.AZUREAPPSERVICE_CLIENTID_C7EF6DF7FA454CE885A927DF49C48742 }}
+          tenant-id: ${{ secrets.AZUREAPPSERVICE_TENANTID_110F1DDDB1704CF0B16961AEF62B745C }}
+          subscription-id: ${{ secrets.AZUREAPPSERVICE_SUBSCRIPTIONID_B042D246A4CC409797C48EB559D969B8 }}
+
+      - name: 'Deploy to Azure Web App'
+        uses: azure/webapps-deploy@v2
+        id: deploy-to-webapp
+        with:
+          app-name: 'textgenerationgpt2'
+          slot-name: 'Production'
+