dockerized läuft

Dockerfile

@@ -2,52 +2,77 @@
 # Formeleon - Multi-tenant Form Generator
 # Author: Björn Runden <br@runden.net>
 # File: Dockerfile
-# Description: Docker container configuration for Formeleon application.
+# Description: Multi-stage Docker build for development and production.
 # =============================================================================
 
-# Use official Python runtime as parent image
-# Use official Python 3.13 runtime as parent image
-FROM python:3.13-slim
+# =============================================================================
+# Builder Stage: Install dependencies in a virtual environment
+# =============================================================================
+FROM python:3.13-slim as builder
 
-# Set environment variables
+# Set environment variables for builder
 ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
-    FLASK_ENV=production \
-    FLASK_APP=app.py
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1
 
-# Set working directory
-WORKDIR /app
-
-# Install system dependencies (einschließlich curl für Healthcheck)
+# Install build dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     libpq-dev \
-    curl \
     && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements file first to leverage Docker cache
-COPY requirements.txt .
+WORKDIR /app
 
-# Install Python dependencies
-RUN pip install --no-cache-dir --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt
+# Create and activate virtual environment
+RUN python -m venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
+
+# Install python dependencies
+COPY requirements.txt .
+RUN pip install --upgrade pip && \
+    pip install -r requirements.txt
+
+# =============================================================================
+# Final Stage: Lean runtime image
+# =============================================================================
+FROM python:3.13-slim
+
+# Set environment variables for runtime
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    FLASK_APP=app.py \
+    PATH="/opt/venv/bin:$PATH"
+
+# Install required runtime system dependencies (curl for healthcheck)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    curl \
+    libpq5 \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Copy the virtual environment from builder stage
+COPY --from=builder /opt/venv /opt/venv
+
+# Copy entrypoint script and ensure it's executable
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
 
 # Copy application code
 COPY . .
 
-# Create uploads directory
+# Create necessary runtime directories
 RUN mkdir -p /tmp/formeleon_uploads && \
+    mkdir -p /app/data && \
+    mkdir -p /app/logs && \
     touch /tmp/formeleon_uploads/.gitkeep
 
-# Expose port
 EXPOSE 5000
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=3s \
-    CMD curl -f http://localhost:5000/api/v1/status || exit 1
+    CMD curl -f http://127.0.0.1:5000/ || exit 1
 
-# Run the application with gthread workers for high concurrency
-CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "--threads", "2", "--worker-class", "gthread", "app:app"]
-
-# For development (uncomment and use docker-compose)
-# CMD ["flask", "run", "--host=0.0.0.0", "--port=5000"]
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["server"]