✨ feat: add Docker Next.js server setup and CI/CD pipeline

- Dockerfile: Add Dockerfile with standalone output for Next.js server.
- next.config.js: Enable standalone output for efficient Docker builds.
- package.json: Update `postinstall` script to conditionally install Husky.
- ci.yml: Add new CI/CD pipeline for building and deploying to Amazon ECR.

Related issue: YJU-OKURA#36

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: Deploy to ECR
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  build:
+    name: Build Image
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY}}
+          aws-region: ap-northeast-2
+
+      - name: Login to Amazon ECR
+        id: login-ecr
+        uses: aws-actions/amazon-ecr-login@v1
+
+      - name: Build, tag, and push image to Amazon ECR
+        run: |
+          docker build -t minori-next .
+          docker tag minori-next:latest 233629834663.dkr.ecr.us-east-1.amazonaws.com/minori-next:latest
+          docker push 233629834663.dkr.ecr.us-east-1.amazonaws.com/minori-next:latest

Dockerfile

@@ -0,0 +1,45 @@
+# Base image
+FROM node:20-alpine AS base
+
+# Dependencies stage
+FROM base AS deps
+RUN apk add --no-cache libc6-compat
+WORKDIR /src/app
+COPY package.json yarn.lock ./
+RUN yarn install --frozen-lockfile
+
+# Builder stage
+FROM base AS builder
+WORKDIR /src/app
+COPY --from=deps /src/app/node_modules ./node_modules
+COPY . .
+RUN yarn build
+
+# Final production image
+FROM base AS runner
+WORKDIR /src/app
+
+ENV NODE_ENV=production
+
+RUN addgroup --system --gid 1001 nodejs \
+    && adduser --system --uid 1001 nextjs
+
+# Copy Next.js build output
+COPY --from=builder /src/app/public ./public
+COPY --from=builder /src/app/.next/standalone ./
+COPY --from=builder /src/app/.next/static ./.next/static
+
+# Copy additional necessary files
+COPY --from=builder /src/app/package.json ./package.json
+COPY --from=builder /src/app/yarn.lock ./yarn.lock
+
+# Install production-only dependencies while ignoring optional ones
+RUN yarn install --frozen-lockfile --production --ignore-optional
+
+USER nextjs
+
+EXPOSE 3000
+
+ENV PORT 3000
+
+CMD ["node", "server.js"]

next.config.js

@@ -17,4 +17,5 @@ module.exports = {
     ],
   },
   reactStrictMode: false,
+  output: 'standalone',
 };

package.json

@@ -9,7 +9,7 @@
     "lint": "next lint",
     "test": "jest",
     "test:watch": "jest --watch",
-    "postinstall": "husky install"
+    "postinstall": "node -e \"if (process.env.NODE_ENV !== 'production') require('husky').install()\""
   },
   "husky": {
     "hooks": {