add GitHub Actions workflow for build and deployment

.gitea/workflows/deploy.yml

@@ -0,0 +1,44 @@
+name: Build and Deploy
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+          fetch-depth: 0
+
+      - name: Setup Hugo
+        uses: peaceiris/actions-hugo@v2
+        with:
+          hugo-version: 'latest'
+          extended: true
+
+      - name: Build
+        run: hugo --minify
+
+      - name: Install SSH Key
+        uses: shimataro/ssh-key-action@v2
+        with:
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          known_hosts: unnecessary
+          if_key_exists: replace
+
+      - name: Adding Known Hosts
+        run: ssh-keyscan -p ${{ secrets.SERVER_PORT }} -H ${{ secrets.SERVER_HOST }} >> ~/.ssh/known_hosts
+
+      - name: Deploy with rsync
+        run: |
+          rsync -avz --delete -e "ssh -p ${{ secrets.SERVER_PORT }}" \
+            ./public/ ${{ secrets.SERVER_USER }}@${{ secrets.SERVER_HOST }}:${{ secrets.DEPLOY_PATH }}
+
+      - name: Restart Docker container
+        run: |
+          ssh -p ${{ secrets.SERVER_PORT }} ${{ secrets.SERVER_USER }}@${{ secrets.SERVER_HOST }} \
+            "cd ${{ secrets.DEPLOY_PATH }} && sudo docker compose -f docker-compose.prod.yml up -d --build"