release nightly image workflow

.github/workflows/ai-service-release-nightly-image.yaml

@@ -0,0 +1,42 @@
+name: AI Service/release nightly image
+
+on:
+  push:
+    branches: [main, feature/ai-service/44-*]
+    paths:
+      - 'wren-ai-service/**'
+
+defaults:
+  run:
+    working-directory: wren-ai-service
+
+jobs:
+  build-image:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Prepare tag name
+        id: tag-preparation
+        run: |
+          tag_name=main-$(git log -1 --pretty=%h)
+          echo "TAG_NAME=$tag_name" >> $GITHUB_OUTPUT
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push image
+        env:
+          TAG_NAME: ${{ steps.tag-preparation.outputs.TAG_NAME }}
+        run: |
+          docker buildx build \
+            --platform linux/amd64,linux/arm64 \
+            --tag ghcr.io/canner/wren-ai-service:$TAG_NAME \
+            --tag ghcr.io/canner/wren-ai-service:nightly \
+            --file ./docker/Dockerfile \
+            --push .