Add data-ingestion-service for SA4CPS FTP integration

- Implement FTP monitoring and ingestion for SA4CPS .slg_v2 files - Add
robust data processor with multi-format and unit inference support -
Publish parsed data to Redis topics for real-time dashboard simulation -
Include validation, monitoring, and auto-configuration scripts - Provide
documentation and test scripts for SA4CPS integration

microservices/data-ingestion-service/Dockerfile

@@ -0,0 +1,39 @@
+FROM python:3.9-slim
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+# Set work directory
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        build-essential \
+        curl \
+        libssl-dev \
+        libffi-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements and install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Create non-root user for security
+RUN adduser --disabled-password --gecos '' appuser
+RUN chown -R appuser:appuser /app
+USER appuser
+
+# Expose port
+EXPOSE 8008
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:8008/health || exit 1
+
+# Start the application
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8008", "--reload"]