Add Docker support (Dockerfile + docker-compose.yml)

.dockerignore

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+node_modules
+gdbgui/static/js/main.js
+__pycache__
+*.pyc
+*.pyo
+.git
+.pytest_cache
+gdbgui.egg-info
+gdbgui/server/uploads

Dockerfile

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+# ── Stage 1: build the React/Webpack frontend ─────────────────────────────
+FROM node:20-slim AS frontend-builder
+WORKDIR /app
+COPY package.json yarn.lock ./
+RUN yarn install --frozen-lockfile
+COPY . .
+# Webpack 4 requires --openssl-legacy-provider; pass it directly to node
+# to avoid NODE_OPTIONS restrictions on Node 17+.
+RUN NODE_ENV=production node --openssl-legacy-provider \
+    node_modules/.bin/webpack --mode production --config webpack.config.js
+
+# ── Stage 2: Python runtime ────────────────────────────────────────────────
+FROM python:3.13-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential g++ gdb libstdc++-12-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# python:3.13-slim installs the stdlib at /usr/local/lib/python3.13, but
+# GDB's embedded Python looks at /usr/lib/python3.13 — fix sys.path so
+# libstdc++ pretty-printers load correctly.
+RUN printf 'set auto-load safe-path /\nset breakpoint pending on\npython\nimport sys\nfor p in ["/usr/local/lib/python3.13","/usr/local/lib/python3.13/lib-dynload","/usr/share/gcc/python"]:\n    if p not in sys.path: sys.path.insert(0, p)\nfrom libstdcxx.v6.printers import register_libstdcxx_printers\nregister_libstdcxx_printers(None)\nend\n' > /root/.gdbinit
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --upgrade pip && pip install -r requirements.txt
+
+COPY . .
+COPY --from=frontend-builder /app/gdbgui/static/js/ ./gdbgui/static/js/
+
+RUN pip install -e . --no-deps
+
+EXPOSE 5000
+CMD ["python", "-m", "gdbgui", "--host=0.0.0.0", "--port=5000"]

docker-compose.yml

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+version: '3.8'
+services:
+  gdbgui:
+    build: .
+    ports:
+      - "5000:5000"
+    volumes:
+      - ./gdbgui/server/uploads:/app/gdbgui/server/uploads
+    environment:
+      - PYTHONUNBUFFERED=1
+      - PYTHONDONTWRITEBYTECODE=1
+    cap_add:
+      - SYS_PTRACE
+    security_opt:
+      - seccomp:unconfined