build: add Docker and nginx configuration for deployment

Added Dockerfile.web for containerizing the web application and nginx.conf
for serving the application in production. Also included .gitea/ directory
for CI/CD configuration.

.gitea/workflows/build.yml

@@ -0,0 +1,80 @@
+name: Admin CI
+
+on:
+  push:
+    branches:
+      - main
+      - master
+      - develop
+      - dev
+  pull_request:
+    branches:
+      - main
+      - master
+  workflow_dispatch:
+
+env:
+  REGISTRY: code.littlelan.cn
+  IMAGE_NAME: carrot_bbs/admin
+
+jobs:
+  build-and-push-web:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Log in to Gitea Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.GIT_USERNAME }}
+          password: ${{ secrets.GIT_TOKEN }}
+
+      - name: Extract metadata for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=sha
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: Dockerfile.web
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: linux/amd64
+          provenance: false
+          cache-from: type=registry,ref=code.littlelan.cn/carrot_bbs/admin:buildcache
+          cache-to: type=registry,ref=code.littlelan.cn/carrot_bbs/admin:buildcache,mode=max
+
+      - name: Show image tags
+        run: |
+          echo "Built image tags:"
+          echo "${{ steps.meta.outputs.tags }}"
+          echo "Digest: ${{ steps.meta.outputs.digest }}"
+
+      - name: Summary
+        if: always()
+        run: |
+          echo "## Admin CI Summary" >> "$GITHUB_STEP_SUMMARY"
+          echo "" >> "$GITHUB_STEP_SUMMARY"
+          echo "**Web image:** ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}" >> "$GITHUB_STEP_SUMMARY"
+          echo "**Tags:**" >> "$GITHUB_STEP_SUMMARY"
+          echo "${{ steps.meta.outputs.tags }}" >> "$GITHUB_STEP_SUMMARY"
+          echo "**Digest:** ${{ steps.meta.outputs.digest }}" >> "$GITHUB_STEP_SUMMARY"

Dockerfile.web

@@ -0,0 +1,16 @@
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+RUN npm ci
+
+COPY . .
+RUN npm run build
+
+FROM nginx:1.27-alpine
+
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+EXPOSE 80

nginx.conf

@@ -0,0 +1,19 @@
+server {
+    listen 80;
+    server_name _;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+
+    gzip on;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
+    gzip_min_length 256;
+}