Initial version

Author: devlead

.github/workflows/docker-build.yml

@@ -0,0 +1,43 @@
+name: Nightly Docker Build
+
+on:
+  schedule:
+    # Run every night at 2 AM UTC
+    - cron: '0 2 * * *'
+  workflow_dispatch: # Allow manual triggering
+
+env:
+  REGISTRY_NAME: ${{ secrets.ACR_LOGIN_SERVER }}
+  IMAGE_NAME: aspnet-noble-ghostscript
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+      
+    - name: Log in to Azure Container Registry
+      uses: docker/login-action@v3
+      with:
+        registry: ${{ secrets.ACR_LOGIN_SERVER }}
+        username: ${{ secrets.ACR_USERNAME }}
+        password: ${{ secrets.ACR_PASSWORD }}
+        
+    - name: Build and push Docker image
+      id: build
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        file: ./Dockerfile
+        push: true
+        tags: ${{ secrets.ACR_LOGIN_SERVER }}/${{ env.IMAGE_NAME }}:latest
+        cache-from: type=gha
+        cache-to: type=gha,mode=max
+        
+    - name: Image digest
+      run: echo ${{ steps.build.outputs.digest }}

Dockerfile

@@ -0,0 +1,9 @@
+FROM mcr.microsoft.com/dotnet/aspnet:10.0-noble
+RUN apt-get update && apt-get install -y ghostscript zbar-tools
+
+
+ENV GhostScriptSettings__Executable="/usr/bin/gs"
+ENV GhostScriptSettings__Parameter="-sDEVICE=pdfwrite -o \"{1}\" -dCompatibilityLevel=\"1.4\" -dPDFSETTINGS=\"/screen\" -dNOPAUSE -dQUIET -dBATCH \"{0}\""
+ENV GhostScriptSettings__WorkDir="/tmp"
+RUN /usr/bin/gs --version
+WORKDIR /app

README.md

@@ -0,0 +1,70 @@
+# ASP.NET Noble Ghostscript Docker Image
+
+This repository contains a Docker image based on ASP.NET 10.0 Noble with Ghostscript and zbar-tools installed.
+
+## Docker Image
+
+The Dockerfile creates an image with:
+- Base: `mcr.microsoft.com/dotnet/aspnet:10.0-noble`
+- Ghostscript for PDF processing
+- zbar-tools for barcode/QR code processing
+- Pre-configured GhostScript settings
+
+## GitHub Actions CI/CD
+
+### Nightly Builds
+
+The repository includes a GitHub Actions workflow that:
+- Runs nightly at 2 AM UTC
+- Builds the Docker image
+- Pushes to Azure Container Registry
+- Supports manual triggering via `workflow_dispatch`
+
+### Required GitHub Secrets
+
+To use the GitHub Actions workflow, you need to configure the following secrets in your repository:
+
+1. **ACR_LOGIN_SERVER** - Your Azure Container Registry login server URL
+   - Example: `myregistry.azurecr.io`
+
+2. **ACR_USERNAME** - Your Azure Container Registry username
+   - Example: `myregistry` (usually the same as registry name)
+
+3. **ACR_PASSWORD** - Your Azure Container Registry password
+   - You can get this from Azure Portal > Container Registry > Access Keys
+
+### Setting up GitHub Secrets
+
+1. Go to your GitHub repository
+2. Navigate to Settings > Secrets and variables > Actions
+3. Click "New repository secret"
+4. Add each of the three secrets listed above
+
+### Workflow Features
+
+- **Scheduled builds**: Runs automatically every night at 2 AM UTC
+- **Manual triggers**: Can be triggered manually from the Actions tab
+- **Simple tagging**: Uses only the `latest` tag for all builds
+- **Build caching**: Uses GitHub Actions cache for faster builds
+- **Buildx support**: Uses Docker Buildx for advanced build features
+
+### Image Tags
+
+The workflow creates a single tag:
+- `latest` - All builds are tagged as latest, overwriting the previous version
+
+## Usage
+
+Once the image is built and pushed to your Azure Container Registry, you can pull it using:
+
+```bash
+docker pull <your-registry>.azurecr.io/aspnet-noble-ghostscript:latest
+```
+
+## Environment Variables
+
+The image includes pre-configured environment variables for GhostScript:
+
+- `GhostScriptSettings__Executable="/usr/bin/gs"`
+- `GhostScriptSettings__Parameter="-sDEVICE=pdfwrite -o \"{1}\" -dCompatibilityLevel=\"1.4\" -dPDFSETTINGS=\"/screen\" -dNOPAUSE -dQUIET -dBATCH \"{0}\""`
+- `GhostScriptSettings__WorkDir="/tmp"`