4.1.1

BalanceServer/Dockerfile

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+FROM golang:1.25.12-alpine AS build
+WORKDIR /src
+COPY go.mod go.sum* ./
+RUN go mod download
+COPY . .
+RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /out/balance-server ./cmd/balance-server
+
+FROM alpine:3.22
+RUN addgroup -S balance && adduser -S -G balance balance && mkdir /data && chown balance:balance /data
+USER balance
+COPY --from=build /out/balance-server /usr/local/bin/balance-server
+ENV BALANCE_ADDR=:8080 BALANCE_DB_PATH=/data/balance.db
+EXPOSE 8080
+VOLUME ["/data"]
+ENTRYPOINT ["balance-server"]