mirror of
https://github.com/jhd3197/ServerKit.git
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Juan DenisandClaude Fable 5
751dde7a7d
The app runs flask-socketio with async_mode='threading' (the backend
is real-thread based: jobs scheduler, queue bus, agent registry), where
engineio serves WebSocket via simple-websocket on the raw socket. The
systemd unit template and Dockerfile still launched gunicorn with the
GeventWebSocketWorker, which ALSO answers the upgrade — the client got
HTTP/1.1 101 twice and read the second one as a frame ('Invalid frame
header'), so every panel silently degraded to polling. Proven by
hexdump (double 101, first 'frame' byte 0x48 'H') and fixed live:
single 101 + 0x81 text frame, socket.io connects through Cloudflare.
- unit template + Dockerfile: gunicorn -w 1 --threads 100 (single
PROCESS stays mandatory — in-memory agent gateway)
- requirements: pin simple-websocket explicitly (was transitive-only)
- CLAUDE.md / ARCHITECTURE.md / SECURITY.md single-worker notes updated
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
110 lines
3.3 KiB
Docker
110 lines
3.3 KiB
Docker
# ============================================
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# ServerKit Dockerfile - Single Container
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# ============================================
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# This Dockerfile creates a single container with both
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# frontend and backend. Good for simple deployments.
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#
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# For production with separate containers and nginx,
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# use docker-compose.yml instead.
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#
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# Build: docker build -t serverkit .
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# Run: docker run -d -p 5000:5000 --env-file .env serverkit
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# Override the internal backend port with SERVERKIT_BACKEND_PORT if needed.
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# ============================================
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# Stage 1: Build Frontend
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FROM node:20-alpine AS frontend-builder
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WORKDIR /app/frontend
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# Copy package files
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COPY frontend/package*.json ./
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# Install dependencies
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RUN npm ci
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# Copy frontend source
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COPY frontend/ ./
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# Build production bundle
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RUN npm run build
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# ============================================
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# Stage 2: Production Image
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FROM python:3.11-slim-bookworm
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# Set environment variables
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ENV PYTHONDONTWRITEBYTECODE=1 \
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PYTHONUNBUFFERED=1 \
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FLASK_ENV=production \
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SERVERKIT_BACKEND_PORT=5000
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# Install system dependencies
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RUN apt-get update && apt-get install -y --no-install-recommends \
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# Required for psutil and some Python packages
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gcc \
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python3-dev \
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# Required for gevent
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libevent-dev \
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# Required for cryptography
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libffi-dev \
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libssl-dev \
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# ClamAV for malware scanning (optional, can be installed separately)
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clamav \
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clamav-daemon \
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clamav-freshclam \
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# Useful utilities
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curl \
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procps \
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&& rm -rf /var/lib/apt/lists/* \
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&& apt-get clean
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# Create non-root user for security
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RUN groupadd -r serverkit && useradd -r -g serverkit serverkit
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# Create necessary directories
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RUN mkdir -p /etc/serverkit /var/serverkit/apps /var/log/serverkit /var/quarantine /var/backups/serverkit \
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&& chown -R serverkit:serverkit /etc/serverkit /var/serverkit /var/log/serverkit /var/quarantine /var/backups/serverkit
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# Set working directory
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WORKDIR /app
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# Copy backend requirements and install Python dependencies
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COPY backend/requirements.txt ./backend/
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RUN pip install --no-cache-dir -r backend/requirements.txt
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# Copy backend source
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COPY backend/ ./backend/
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# Ship the VERSION file next to the backend tree (/app/VERSION) so the panel
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# reports its real version in containers instead of the unknown-version fallback
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COPY VERSION ./VERSION
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# Copy built frontend from Stage 1
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COPY --from=frontend-builder /app/frontend/dist ./frontend/dist
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# Create data directory for SQLite database
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RUN mkdir -p /app/data && chown -R serverkit:serverkit /app/data
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# Set ownership
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RUN chown -R serverkit:serverkit /app
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# Switch to non-root user
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USER serverkit
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# Expose port
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EXPOSE 5000
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# Health check
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HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
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CMD curl -f "http://localhost:${SERVERKIT_BACKEND_PORT:-5000}/api/v1/system/health" || exit 1
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# Working directory for the backend
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WORKDIR /app/backend
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# Default command - use gunicorn for production
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# Single process (agent gateway state is in-memory) + threads: the app runs
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# async_mode='threading' (simple-websocket serves WS); a gevent-websocket
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# worker would double-answer the upgrade handshake and break WebSocket.
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CMD ["sh", "-c", "exec gunicorn --workers 1 --threads 100 --bind 0.0.0.0:${SERVERKIT_BACKEND_PORT:-5000} --timeout 120 --access-logfile - --error-logfile - run:app"]
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