Initial commit: Pangolin Sentinel Docker & Unraid Hub

Dockerfile

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+FROM python:3.11-slim
+
+# Set environment variables
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    APP_DIR=/app \
+    DATA_DIR=/data \
+    BACKUP_DIR=/backups \
+    PORT=8888 \
+    HOST=0.0.0.0
+
+# Install required system packages:
+# - openssh-client: ssh, scp, ssh-keygen
+# - sshpass: password-based SSH authentication
+# - rsync: efficient file staging and transfers
+# - tar & gzip: archive inspection, creation, and extraction
+# - curl & ca-certificates: healthchecks and outbound webhooks
+# - procps: psutil and process management
+# - sqlite3: SQLite verification
+# - gosu: PUID/PGID privilege handling for Unraid / Docker hosts
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    openssh-client \
+    sshpass \
+    rsync \
+    tar \
+    gzip \
+    curl \
+    ca-certificates \
+    procps \
+    sqlite3 \
+    gosu \
+    bash \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Copy dependency specifications first for Docker layer caching
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application source code and scripts
+COPY backend/ ./backend/
+COPY frontend/ ./frontend/
+COPY entrypoint.sh .
+
+# Ensure entrypoint is executable and mount points exist
+RUN chmod +x /app/entrypoint.sh && \
+    mkdir -p /data /backups
+
+# Expose Sentinel Web Dashboard port
+EXPOSE 8888
+
+# Persistent volumes for application configuration and backup archives
+VOLUME ["/data", "/backups"]
+
+# Health check to monitor dashboard responsiveness
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
+    CMD curl -f http://localhost:8888/api/auth/status || exit 1
+
+ENTRYPOINT ["/app/entrypoint.sh"]
+
+CMD ["python", "-m", "uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8888"]