ci: release with docker image (#19)

Author: everpcpc

.dockerignore

@@ -0,0 +1,8 @@
+target/
+.git/
+.github/
+.env
+*.md
+LICENSE
+Makefile
+scripts/

.github/workflows/release.yml

@@ -152,3 +152,50 @@ jobs:
         run: |
           VERSION=${{ needs.prepare.outputs.version }}
           gh release upload "v${VERSION}" "${{ steps.package.outputs.archive }}" --clobber
+
+  docker:
+    needs: [prepare, publish]
+    if: needs.prepare.outputs.publish == 'true'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Download release artifacts
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          set -euo pipefail
+          VERSION=${{ needs.prepare.outputs.version }}
+          mkdir -p artifacts/amd64 artifacts/arm64
+          gh release download "v${VERSION}" \
+            --pattern "databend-loki-adapter-${VERSION}-x86_64-unknown-linux-musl.tar.gz" \
+            --dir artifacts/amd64
+          gh release download "v${VERSION}" \
+            --pattern "databend-loki-adapter-${VERSION}-aarch64-unknown-linux-musl.tar.gz" \
+            --dir artifacts/arm64
+          tar -xzf artifacts/amd64/*.tar.gz -C artifacts/amd64
+          tar -xzf artifacts/arm64/*.tar.gz -C artifacts/arm64
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository }}:${{ needs.prepare.outputs.version }}
+            ghcr.io/${{ github.repository }}:latest

Dockerfile

@@ -0,0 +1,4 @@
+FROM scratch
+ARG TARGETARCH
+COPY artifacts/${TARGETARCH}/databend-loki-adapter /databend-loki-adapter
+ENTRYPOINT ["/databend-loki-adapter"]