Dockerfile.backend

# Multi-stage build for Fastify backend with Python
# Stage 1: Dependencies
FROM node:20-alpine AS deps
WORKDIR /app

# Install build dependencies for native modules
RUN apk add --no-cache python3 make g++ gcc

# Install pnpm
RUN npm install -g pnpm@9.15.4

# Copy package files
COPY package.json pnpm-lock.yaml* ./
COPY packages/backend/package.json ./packages/backend/

# Install dependencies (including better-sqlite3)
RUN pnpm install --frozen-lockfile

# Stage 2: Python Environment
FROM python:3.12-alpine AS python-builder
WORKDIR /app

# Install Python dependencies
COPY packages/backend/requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# Stage 3: Builder
FROM node:20-alpine AS builder
WORKDIR /app

# Install build dependencies
RUN apk add --no-cache python3 make g++ gcc

# Install pnpm
RUN npm install -g pnpm@9.15.4

# Copy dependencies from deps stage
COPY --from=deps /app/node_modules ./node_modules
COPY --from=deps /app/packages/backend/node_modules ./packages/backend/node_modules

# Copy source code
COPY packages/backend ./packages/backend

# Build TypeScript
RUN cd packages/backend && pnpm build

# Stage 4: Runner
FROM python:3.12-alpine AS runner
WORKDIR /app

# Install Node.js
RUN apk add --no-cache nodejs npm

# Install pnpm
RUN npm install -g pnpm@9.15.4

# Create non-root user
RUN addgroup --system --gid 1001 backend
RUN adduser --system --uid 1001 backend

# Copy Python dependencies from python-builder
COPY --from=python-builder /usr/local/lib/python3.12/site-packages /usr/local/lib/python3.12/site-packages
COPY --from=python-builder /usr/local/bin /usr/local/bin

# Copy Node.js dependencies and built files
COPY --from=builder /app/packages/backend/node_modules ./packages/backend/node_modules
COPY --from=builder /app/packages/backend/dist ./packages/backend/dist
COPY --from=builder /app/packages/backend/package.json ./packages/backend/

# Copy database migrations
COPY packages/backend/src/db/migrations ./packages/backend/src/db/migrations

# Copy Python scripts
COPY python-scripts ./python-scripts

# Create necessary directories with correct permissions
RUN mkdir -p /app/.data/storage /app/.data/memory /app/.data/agents /app/.data/backups /app/public/storage
RUN chown -R backend:backend /app/.data /app/public/storage

# Set correct permissions
RUN chown -R backend:backend /app

# Switch to non-root user
USER backend

# Expose port
EXPOSE 41522

# Set environment variables
ENV NODE_ENV=production
ENV PORT=41522
ENV PYTHON_PATH=/usr/local/bin/python3

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
  CMD node -e "require('http').get('http://localhost:41522/api/health', (r) => process.exit(r.statusCode === 200 ? 0 : 1))"

# Start Fastify server
CMD ["node", "packages/backend/dist/api/server.js"]