FROM golang:1.22-alpine AS build
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY *.go ./
RUN CGO_ENABLED=0 GOOS=linux go build -o server .

FROM alpine:3.19
RUN apk add --no-cache ca-certificates
WORKDIR /app
COPY --from=build /app/server .
CMD ["./server"]