simple geo ip server

Dockerfile

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+FROM golang:1.25.5-trixie AS builder
+
+ENV GOCACHE=/tmp/go-build \
+    GOPROXY=https://proxy.golang.org,direct
+
+WORKDIR /src
+COPY go.mod ./
+RUN go mod download
+
+COPY . .
+RUN CGO_ENABLED=0 go build -o /bin/geoip ./cmd/server
+
+FROM debian:trixie-slim
+
+RUN useradd --create-home --shell /usr/sbin/nologin appuser
+
+WORKDIR /app
+
+COPY --from=builder /bin/geoip /usr/local/bin/geoip
+COPY GeoLite2-City.mmdb /data/GeoLite2-City.mmdb
+
+ENV GEOIP_DB_PATH=/data/GeoLite2-City.mmdb
+USER appuser
+
+EXPOSE 8080
+CMD ["geoip"]