# Alpine-based image for debugging and shell access
FROM golang:1.23-alpine AS builder

RUN apk add --no-cache git ca-certificates

WORKDIR /build

COPY go.mod go.sum* ./
RUN go mod download

COPY . .

RUN CGO_ENABLED=0 go build \
  -ldflags='-w -s' \
  -o argparse-builder \
  .

# Alpine base for shell access and debugging
FROM alpine:3.19

RUN apk add --no-cache ca-certificates tzdata && \
  adduser -D -u 1000 argparse

WORKDIR /app

COPY --from=builder /build/argparse-builder .

# Change ownership
RUN chown argparse:argparse /app/argparse-builder

USER argparse

EXPOSE 8080

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:8080/ || exit 1

ENTRYPOINT ["/app/argparse-builder"]