initial workflow for building docker image

.gitea/workflows/build.yml

@@ -0,0 +1,33 @@
+name: Build Docker Image
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Build Docker image
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: false
+        tags: parentzone-downloader:latest
+        cache-from: type=gha
+        cache-to: type=gha,mode=max
+
+    - name: Test Docker image
+      run: |
+        docker run --rm parentzone-downloader:latest python --version
+        docker run --rm parentzone-downloader:latest ls -la /app

.gitignore

@@ -1,3 +1,6 @@
 downloaded_images
 parentzone_images
 snapshots
+__pycache__
+.DS_Store
+