From 14c3d7a0ada4c4c0d08a0b0e9287bd48e8ed9566 Mon Sep 17 00:00:00 2001
From: Jose Costa Teixeira <jose.a.teixeira@gmail.com>
Date: Sun, 15 Feb 2026 12:56:27 +0000
Subject: [PATCH] Multi-stage Docker build - minimize docker size

Add multi-stage build for optimized Docker image. development libraries stay on first stage
---
 Dockerfile | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 1741904..e0a5f6f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,13 +1,25 @@
-FROM node:24-alpine
+# Stage 1: Build native modules
+FROM node:24-alpine AS builder
 
-# Create app directory
 WORKDIR /app
 
+# Install build dependencies for native modules (bcrypt, sqlite3)
+RUN apk add --no-cache python3 make g++
+
 # Install app dependencies
 COPY package*.json ./
-RUN npm ci --only=production
+RUN npm install --omit=dev
+
+# Stage 2: Runtime image (no build tools)
+FROM node:24-alpine
+
+WORKDIR /app
+
+# Copy installed node_modules from builder
+COPY --from=builder /app/node_modules ./node_modules
 
 # Bundle app source
+COPY package*.json ./
 COPY . .
 
 # Define build argument for version