Dockerfile

# =============================================================================
#   Gelegram — Docker Image
# =============================================================================
#   Multi-stage build:
#     Stage 1 (builder) — Install Node.js + Gemini CLI + Python deps
#     Stage 2 (runtime) — Slim image with only what's needed at runtime
#
#   Usage:
#     docker build -t gelegram .
#     docker run -d --name gelegram \
#       -v gelegram-data:/data \
#       -e TELEGRAM_BOT_TOKEN=your-token \
#       gelegram
#
#   Or use docker-compose.yml (recommended):
#     docker compose up -d
#
#   First-time Gemini auth:
#     docker exec -it gelegram gemini auth
# =============================================================================

# ── Stage 1: Builder ─────────────────────────────────────────────────────────
# Install Node.js, Gemini CLI, and Python dependencies in a throwaway layer
FROM python:3.12-slim AS builder

# Install Node.js 20 (LTS) — needed to install Gemini CLI via npm
RUN apt-get update && \
    apt-get install -y --no-install-recommends curl ca-certificates && \
    curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
    apt-get install -y --no-install-recommends nodejs && \
    apt-get clean && rm -rf /var/lib/apt/lists/*

# Install Gemini CLI globally
RUN npm install -g @google/gemini-cli

# Install Python dependencies into a prefix we can copy later
COPY requirements.txt /tmp/requirements.txt
RUN pip install --no-cache-dir --prefix=/install -r /tmp/requirements.txt


# ── Stage 2: Runtime ─────────────────────────────────────────────────────────
# Slim image with just Python + Node.js runtime + our app
FROM python:3.12-slim

LABEL maintainer="krazyguy"
LABEL org.opencontainers.image.title="Gelegram"
LABEL org.opencontainers.image.description="Personal AI agent — Telegram bot powered by Gemini CLI"
LABEL org.opencontainers.image.source="https://github.com/krazyguy/Gelegram"
LABEL org.opencontainers.image.licenses="MIT"

# Install Node.js runtime (needed for gemini CLI at runtime)
RUN apt-get update && \
    apt-get install -y --no-install-recommends curl ca-certificates && \
    curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
    apt-get install -y --no-install-recommends nodejs && \
    apt-get clean && rm -rf /var/lib/apt/lists/*

# Copy Gemini CLI from builder
COPY --from=builder /usr/lib/node_modules /usr/lib/node_modules
RUN ln -sf /usr/lib/node_modules/.bin/gemini /usr/local/bin/gemini

# Copy Python packages from builder
COPY --from=builder /install /usr/local

# ── Application setup ────────────────────────────────────────────────────────
WORKDIR /app

# Copy application source code
COPY bot.py gateway.py scheduler.py workspace_init.py chat.py ./
COPY requirements.txt .env.example ./

# ── Persistent data volume ───────────────────────────────────────────────────
# /data is where the agentic workspace lives (workdir equivalent).
# Mount a Docker volume here to persist memory, skills, transcripts, etc.
# Also stores runtime state: trusted_users.json, bot.pid, logs, etc.
VOLUME /data

# ── Environment defaults ─────────────────────────────────────────────────────
# These can be overridden at runtime via docker run -e or docker-compose.yml
ENV GEMINI_CLI_PATH=gemini \
    GEMINI_WORKING_DIR=/data/workdir \
    ACP_TIMEOUT=120 \
    BOT_PASSWORD="" \
    # Ensure Python output is not buffered (important for Docker logging)
    PYTHONUNBUFFERED=1 \
    # Force UTF-8 everywhere — prevents the cp1252 encoding errors on Windows
    PYTHONIOENCODING=utf-8 \
    LANG=C.UTF-8 \
    LC_ALL=C.UTF-8

# ── Health check ──────────────────────────────────────────────────────────────
# Checks that the gateway process is still running
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD pgrep -f "python.*gateway.py" > /dev/null || exit 1

# ── Entrypoint ────────────────────────────────────────────────────────────────
# Run gateway.py which manages bot.py lifecycle + cron scheduler
CMD ["python", "gateway.py"]