Shrink the Docker images

backend/Dockerfile

@@ -5,15 +5,19 @@ WORKDIR /app
 COPY . .
 
 RUN go mod tidy
-RUN CGO_ENABLED=0 GOOS=linux go build -o /main ./cmd/api
+# -s -w drops debug symbols; the static binary needs nothing else at runtime.
+RUN CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" -o /main ./cmd/api
 
-# Final stage
-FROM golang:1.24.4-alpine
+# Final stage: plain Alpine instead of the Go toolchain image. It keeps a
+# shell for the compose files that start the binary with `sh -c`.
+FROM alpine:3.22
 
-WORKDIR /
+RUN adduser -D -H -u 10001 app
 
 COPY --from=builder /main /main
 
+USER app
+
 EXPOSE 8000
 
-CMD ["/main"]
+CMD ["/main"]

frontend/.dockerignore

@@ -0,0 +1,5 @@
+# Installed and built inside the image; host copies would overwrite them.
+node_modules
+.next
+.env*.local
+npm-debug.log*

frontend/Dockerfile

@@ -1,10 +1,11 @@
 # Build stage
-FROM node:18-alpine AS builder
+FROM node:22-alpine AS builder
 
 WORKDIR /app
+ENV NEXT_TELEMETRY_DISABLED=1
 
-COPY package.json ./
-RUN npm install
+COPY package.json package-lock.json ./
+RUN npm ci
 
 COPY . .
 
@@ -16,16 +17,21 @@ RUN if [ -n "$NEXT_PUBLIC_LIVEKIT_WS_URL" ]; then echo "NEXT_PUBLIC_LIVEKIT_WS_U
  && if [ -n "$NEXT_PUBLIC_APP_URL" ]; then echo "NEXT_PUBLIC_APP_URL=$NEXT_PUBLIC_APP_URL" >> .env.production.local; fi \
  && npm run build
 
-# Final stage
-FROM node:18-alpine
+# Final stage: only Next.js' standalone server with the dependencies it
+# traced, plus static assets. No build cache or dev dependencies.
+FROM node:22-alpine
 
 WORKDIR /app
+ENV NODE_ENV=production \
+    PORT=3000 \
+    HOSTNAME=0.0.0.0
 
-COPY --from=builder /app/.next ./.next
-COPY --from=builder /app/node_modules ./node_modules
-COPY --from=builder /app/package.json ./package.json
-COPY --from=builder /app/public ./public
+COPY --from=builder --chown=node:node /app/.next/standalone ./
+COPY --from=builder --chown=node:node /app/.next/static ./.next/static
+COPY --from=builder --chown=node:node /app/public ./public
+
+USER node
 
 EXPOSE 3000
 
-CMD ["npm", "start"]
+CMD ["node", "server.js"]

frontend/next.config.js

@@ -1,6 +1,8 @@
 /** @type {import('next').NextConfig} */
 const nextConfig = {
   reactStrictMode: true,
+  // Docker imajı yalnızca .next/standalone içindeki sunucuyu ve ihtiyaç duyduğu paketleri taşır.
+  output: 'standalone',
   async rewrites() {
     return [
       {