Update workflow from canonical template

Author: raphaeltm

.github/workflows/deploy.yaml

@@ -14,26 +14,35 @@ on:
         options:
           - up
           - down
+      stack:
+        description: "The stack to deploy up or down. (Leave blank for default)"
+        default: ""
 
 jobs:
   defang:
-    name: Defang ${{ github.event.inputs.action || 'up' }}
+    name: Defang ${{ github.event.inputs.action || 'up' }} ${{
+      github.event.inputs.stack || 'default stack' }}
     environment: production
     runs-on: ubuntu-latest
     permissions:
       contents: read
       id-token: write
 
+    concurrency:
+      cancel-in-progress: false
+      group: deploy-${{ github.event.inputs.stack || 'default' }}
+
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v4
 
-      - name: Defang ${{ github.event.inputs.action || 'up' }}
+      - name: Defang ${{ github.event.inputs.action || 'up' }} ${{
+          github.event.inputs.stack || 'default stack' }}
         uses: DefangLabs/defang-github-action@v1.4.0
         with:
-          cli-version: nightly # for config-vars-init-random
-          config-vars-init-random: DJANGO_SECRET_KEY POSTGRES_PASSWORD
           command: ${{ github.event.inputs.action || 'up' }}
+          stack: ${{ github.event.inputs.stack || '' }}
+          config-vars-init-random: DJANGO_SECRET_KEY POSTGRES_PASSWORD
         env:
           DJANGO_SECRET_KEY: ${{ secrets.DJANGO_SECRET_KEY }}
           POSTGRES_PASSWORD: ${{ secrets.POSTGRES_PASSWORD }}
@@ -42,3 +51,4 @@ jobs:
         uses: DefangLabs/defang-github-action@v1.4.0
         with:
           command: services
+          stack: ${{ github.event.inputs.stack || '' }}