added preseed.yaml

.github/workflows/preseed.yaml

@@ -0,0 +1,71 @@
+#  vim:ts=2:sts=2:sw=2:et
+#
+#  Author: Hari Sekhon
+#  Date: 2023-05-31 01:49:54 +0100 (Wed, 31 May 2023)
+#
+#  https://github.com/HariSekhon/Packer-templates
+#
+#  License: see accompanying Hari Sekhon LICENSE file
+#
+#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
+#
+#  https://www.linkedin.com/in/HariSekhon
+#
+
+# ============================================================================ #
+#                          D e b i a n   P r e s e e d
+# ============================================================================ #
+
+---
+name: Debian Preseed
+
+on:
+  push:
+    branches:
+      - master
+      - main
+    paths:
+      - preseed.cfg
+      - .github/workflows/preseed.yaml  # this workflow
+
+  pull_request:
+    branches:
+      - master
+      - main
+    paths:
+      - preseed.cfg
+      - .github/workflows/preseed.yaml  # this workflow
+
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.ref }}-${{ github.workflow }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash -euxo pipefail {0}
+
+env:
+  DEBIAN_FRONTEND: noninteractive
+
+jobs:
+  preseed:
+    name: Preseed
+    timeout-minutes: 10
+    runs-on: ubuntu-latest
+    container: debian
+    steps:
+      - uses: actions/checkout@v3
+        #name: Git Checkout  # better to show the action@version
+
+      - name: Install Debconf
+        run: |
+          apt-get update
+          apt-get install debconf -y
+
+      - name: Validate Preseed
+        run: debconf-set-selections -c preseed.cfg