Prerelease updates

.github/workflows/docker-image.yml

@@ -0,0 +1,48 @@
+# .github/workflows/docker-image.yml
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main
+      - 'prerelease-*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set repository name to lowercase
+        id: lowercase_repo
+        run: echo "REPO=$(echo '${{ github.repository }}' | tr '[:upper:]' '[:lower:]')" >> $GITHUB_OUTPUT
+
+      - name: Determine Docker tag
+        id: get_tag
+        run: |
+          if [ "${GITHUB_REF}" == "refs/heads/main" ]; then
+            echo "tag=latest" >> $GITHUB_OUTPUT
+          elif [[ "${GITHUB_REF}" == refs/heads/prerelease-* ]]; then
+            echo "tag=prerelease" >> $GITHUB_OUTPUT
+          else
+            echo "tag=prerelease" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: true
+          tags: ghcr.io/${{ steps.lowercase_repo.outputs.REPO }}/tasks:${{ steps.get_tag.outputs.tag || 'prerelease' }}

Dockerfile

@@ -0,0 +1,13 @@
+# Dockerfile
+FROM python:3.9-slim
+
+WORKDIR /app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:5000", "app:app"]
+
+EXPOSE 5000

app.py

@@ -3,7 +3,7 @@
 from datetime import datetime
 from collections import defaultdict
 
-app = Flask(__name__)
+app = Flask(__name__, static_folder='static', template_folder='templates')
 
 # Configure SQLite database
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///tasks.db'

requirements.txt

@@ -0,0 +1,4 @@
+Flask==3.0.3
+Flask-SQLAlchemy==3.1.1
+Werkzeug==3.0.6
+gunicorn==23.0.0