FROM golang:1.22-alpine AS builder
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /server ./cmd/server

FROM alpine:3.19
RUN apk add --no-cache ca-certificates
WORKDIR /app
COPY --from=builder /server .
USER nobody:nobody
EXPOSE 3009
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:3009/health || exit 1
CMD ["./server"]