Dockerfile.gateway

# ============================================================
# MyZubster Gateway — Dockerfile
# Express API Gateway with MongoDB + Monero payment processor
# Clones from GitHub (submodule constraint — gateway/ is a
# git submodule, so this Dockerfile lives at repo root)
# ============================================================

# ---- Build stage ----
FROM node:20-alpine AS builder

WORKDIR /app

# Install git to clone the repository
RUN apk add --no-cache git

# Clone the gateway repository
RUN git clone https://github.com/DanielIoni-creator/MyZubsterGateway.git . \
    && git checkout main 2>/dev/null || true

# Install production dependencies
RUN npm ci --omit=dev --ignore-scripts 2>/dev/null || npm install --omit=dev --ignore-scripts

# ---- Runtime stage ----
FROM node:20-alpine AS runtime

WORKDIR /app

# Install curl for healthcheck
RUN apk add --no-cache curl

# Create non-root user
RUN addgroup -S appgroup && adduser -S appuser -G appgroup

# Copy app from builder
COPY --from=builder /app /app

# Switch to non-root user
USER appuser

EXPOSE 3001

HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
  CMD curl -f http://localhost:3001/health || exit 1

CMD ["node", "server.js"]