👷 Add Dockerfile and GitHub action for building and pushing to GHCR

.github/workflows/nextjs.yml

@@ -1,8 +1,4 @@
-# Sample workflow for building and deploying a Next.js site to GitHub Pages
-#
-# To get started with Next.js see: https://nextjs.org/docs/getting-started
-#
-name: Deploy Next.js site to Pages
+name: Build and publish site to GitHub container registry
 
 on:
   # Runs on pushes targeting the default branch
@@ -12,82 +8,39 @@ on:
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
-# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
-permissions:
-  contents: read
-  pages: write
-  id-token: write
-
-# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
-# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
-concurrency:
-  group: "pages"
-  cancel-in-progress: false
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
 
 jobs:
-  # Build job
-  build:
+  build-and-push:
     runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Detect package manager
-        id: detect-package-manager
-        run: |
-          if [ -f "${{ github.workspace }}/yarn.lock" ]; then
-            echo "manager=yarn" >> $GITHUB_OUTPUT
-            echo "command=install" >> $GITHUB_OUTPUT
-            echo "runner=yarn" >> $GITHUB_OUTPUT
-            exit 0
-          elif [ -f "${{ github.workspace }}/package.json" ]; then
-            echo "manager=npm" >> $GITHUB_OUTPUT
-            echo "command=ci" >> $GITHUB_OUTPUT
-            echo "runner=npx --no-install" >> $GITHUB_OUTPUT
-            exit 0
-          else
-            echo "Unable to determine package manager"
-            exit 1
-          fi
-      - name: Setup Node
-        uses: actions/setup-node@v4
-        with:
-          node-version: "20"
-          cache: ${{ steps.detect-package-manager.outputs.manager }}
-      - name: Setup Pages
-        uses: actions/configure-pages@v5
-        with:
-          # Automatically inject basePath in your Next.js configuration file and disable
-          # server side image optimization (https://nextjs.org/docs/api-reference/next/image#unoptimized).
-          #
-          # You may remove this line if you want to manage the configuration yourself.
-          static_site_generator: next
-      - name: Restore cache
-        uses: actions/cache@v4
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
         with:
-          path: |
-            .next/cache
-          # Generate a new cache whenever packages or source files change.
-          key: ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json', '**/yarn.lock') }}-${{ hashFiles('**.[jt]s', '**.[jt]sx') }}
-          # If source files changed but packages didn't, rebuild from a prior cache.
-          restore-keys: |
-            ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json', '**/yarn.lock') }}-
-      - name: Install dependencies
-        run: ${{ steps.detect-package-manager.outputs.manager }} ${{ steps.detect-package-manager.outputs.command }}
-      - name: Build with Next.js
-        run: ${{ steps.detect-package-manager.outputs.runner }} next build
-      - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
         with:
-          path: ./out
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
-  # Deployment job
-  deploy:
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-    runs-on: ubuntu-latest
-    needs: build
-    steps:
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v4
+      - name: Build and push Docker image
+        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -0,0 +1,36 @@
+FROM node:20.12.1-alpine as builder
+WORKDIR /app
+
+RUN apk add --no-cache libc6-compat
+
+COPY src ./src
+COPY public ./public
+COPY tsconfig.json tailwind.config.ts postcss.config.js next-env.d.ts next.config.mjs package.json package-lock.json .prettierrc.json .eslintrc.json ./
+
+# Note - this cannot be run with NODE_ENV of production as it will not install dev dependencies
+RUN npm ci
+RUN npm run build
+
+FROM node:20.12.1-alpine as runner
+ENV NODE_ENV production
+WORKDIR /app
+
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+COPY --from=builder /app/public ./public
+
+RUN mkdir .next
+RUN chown nextjs:nodejs .next
+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"
+
+WORKDIR /app
+CMD ["node", "server.js"]

next.config.mjs

@@ -1,6 +1,6 @@
 /** @type {import('next').NextConfig} */
 const nextConfig = {
-  output: 'export',
+  output: 'standalone',
 };
 
 export default nextConfig;