FROM golang:1.23-alpine AS builder
WORKDIR /app
RUN apk add --no-cache git
COPY go.mod ./
ENV GOFLAGS=-mod=mod
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o server ./main.go

FROM alpine:3.20
RUN apk add --no-cache ca-certificates tzdata
WORKDIR /app
COPY --from=builder /app/server .
EXPOSE 8080
CMD ["./server"]