chore: add dockerfile and ci

.gitea/workflows/ci.yml

@@ -0,0 +1,29 @@
+name: ci
+
+on:
+  push:
+  pull_request:
+    branches: [master]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Go setup
+        uses: actions/setup-go@v6
+        with:
+          go-version: "1.26.1"
+          cache: false
+      - name: Install deps
+        run: go mod tidy
+      - name: Golangci-lint
+        uses: golangci/golangci-lint-action@v9
+        with:
+          args: --timeout=5m
+          skip-cache: true
+      - name: Run tests
+        run: go test ./...
+      - name: Build
+        run: go build -o backend ./cmd/main.go

dockerfile

@@ -0,0 +1,22 @@
+FROM golang:1.26.1 as builder
+
+WORKDIR /app
+
+COPY . .
+ENV CGO_ENABLED=0
+ENV GIN_MODE=release
+RUN --mount=type=cache,target=/go/pkg/mod \
+  --mount=type=cache,target=/root/.cache/go-build \
+  go mod download && \
+  go build -ldflags "-s -w" -o backend ./cmd/main.go
+
+FROM alpine:3.23.0
+
+RUN apk add --no-cache curl openssl bash
+
+COPY --from=builder /app/backend .
+
+EXPOSE 8080
+HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 CMD [ "curl --fail http://localhost:8080/health" ]
+
+CMD ["./backend"]