feat: add Docker support with multi-stage build

.dockerignore

@@ -0,0 +1,60 @@
+# Dependencies
+node_modules
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Build output
+.next
+out
+dist
+build
+
+# Testing
+coverage
+.nyc_output
+
+# Environment variables
+.env
+.env*.local
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# Git
+.git
+.gitignore
+.gitattributes
+
+# IDE
+.vscode
+.idea
+*.swp
+*.swo
+*~
+
+# Operating System
+.DS_Store
+Thumbs.db
+
+# Documentation
+README.md
+*.md
+!env.example
+
+# CI/CD
+.github
+.gitlab-ci.yml
+.travis.yml
+
+# Docker
+Dockerfile
+.dockerignore
+docker-compose*.yml
+
+# Other
+*.log
+.cache
+.turbo
+

.github/workflows/docker-build.yml

@@ -0,0 +1,66 @@
+name: Docker Build and Push
+
+on:
+  push:
+    branches:
+      - main
+      - master
+      - dev
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - main
+      - master
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GitHub Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels)
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha,prefix={{branch}}-
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          platforms: linux/amd64,linux/arm64
+

Dockerfile

@@ -0,0 +1,55 @@
+# Multi-stage Dockerfile for Next.js
+
+# Stage 1: Install dependencies
+FROM node:20-alpine AS deps
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+
+# Copy package files
+COPY package.json package-lock.json* ./
+
+# Install dependencies
+RUN npm ci
+
+# Stage 2: Build application
+FROM node:20-alpine AS builder
+WORKDIR /app
+
+# Copy node_modules from deps stage
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+# Disable Next.js telemetry during build
+ENV NEXT_TELEMETRY_DISABLED=1
+
+# Build Next.js application (standalone mode)
+RUN npm run build
+
+# Stage 3: Production runtime
+FROM node:20-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+
+# Create non-root user for security
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+# Copy necessary files
+COPY --from=builder /app/public ./public
+
+# Copy standalone build output
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+
+USER nextjs
+
+EXPOSE 3000
+
+ENV PORT=3000
+ENV HOSTNAME="0.0.0.0"
+
+# Start the application
+CMD ["node", "server.js"]
+

next.config.ts

@@ -2,6 +2,7 @@ import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
   /* config options here */
+  output: 'standalone',
 };
 
 export default nextConfig;