# Session 79 — Alpine multi-stage build of http_health with musl (when host
# can run docker). The *builder* stage expects a prebuilt Linux binary
# produced on Alpine or via musl-gcc:
#
#   # On Alpine / with musl-gcc:
#   BUX_CC=musl-gcc BUX_RUNTIME=minimal ./buxc --static --release build …
#   # or: ./tools/smoke_musl_static.sh
#
#   docker build -f examples/docker/Dockerfile.alpine-health -t bux-health-alpine .
#
# Fallback: copy a glibc binary and use debian (see Dockerfile.health).

FROM alpine:3.20 AS runtime
RUN apk add --no-cache ca-certificates
WORKDIR /app
# Prefer a static musl binary if present; else fail the build clearly.
COPY build/http_health_musl /app/http_health
ENV HEALTH_BIND=0.0.0.0
ENV HEALTH_PORT=8080
EXPOSE 8080
ENTRYPOINT ["/app/http_health"]