# Alpine-based with shell for debugging
# SELinux compatible, rootless ready

FROM docker.io/library/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 \
  .

FROM docker.io/library/alpine:3.19

LABEL maintainer="your-email@example.com" \
  org.opencontainers.image.title="Argparse Builder (Alpine)" \
  org.opencontainers.image.description="Interactive bash argument parser generator" \
  org.opencontainers.image.version="1.0.0"

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

WORKDIR /app

COPY --from=builder --chown=argparse:argparse /build/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/health || exit 1

ENTRYPOINT ["/app/argparse-builder"]