Dockerfile.worker

# ============================================================================
# Dockerfile for Stellar Indexer Worker
# ============================================================================
# This Dockerfile builds an isolated container for the indexer worker that:
# - Polls/streams Stellar blockchain
# - Processes and translates events
# - Publishes to Redis Pub/Sub
#
# Build: docker build -f Dockerfile.worker -t open-audit-worker .
# Run: docker run --env-file .env open-audit-worker
# ============================================================================

FROM node:20-alpine AS base

# Install dependencies only when needed
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Copy package files
COPY package.json package-lock.json* ./
RUN npm ci

# ============================================================================
# Builder stage
# ============================================================================
FROM base AS builder
WORKDIR /app

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

# Generate Prisma client if using database
RUN if [ -d "prisma" ]; then npx prisma generate; fi

# Build TypeScript (if needed)
# RUN npm run build:worker

# ============================================================================
# Runner stage - Production image
# ============================================================================
FROM base AS runner
WORKDIR /app

ENV NODE_ENV=production

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

# Copy necessary files
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/lib ./lib
COPY --from=builder /app/src ./src
COPY --from=builder /app/tsconfig.json ./
COPY --from=builder /app/tsconfig.server.json ./

# Copy Prisma files if exists
COPY --from=builder /app/prisma ./prisma

# Set permissions
RUN chown -R worker:nodejs /app

# Switch to non-root user
USER worker

# Expose port for health checks (optional)
EXPOSE 9090

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
  CMD node -e "process.exit(0)"

# Start the worker
CMD ["npx", "ts-node", "--project", "tsconfig.server.json", "src/worker/indexer.ts"]