# =============================================================================
# Platform nginx — Rocky Linux 9
# Construit ja4ebpf (eBPF CO-RE) + nginx avec HTTP/2 et TLS.
#
# Multi-stage :
#   go-builder    — compile ja4ebpf (go generate + go build) sur Rocky Linux
#   runtime       — nginx + binaire ja4ebpf sur Rocky Linux 9
# =============================================================================

# ARG global : doit être déclaré avant tous les FROM pour être utilisable
# dans les instructions FROM des stages suivants.
ARG BASE_IMAGE=rockylinux:9

# ── Stage 1 : build ja4ebpf (Rocky Linux, même toolchain que la prod) ─────────
FROM rockylinux:9 AS go-builder

# libbpf-devel est dans le dépôt CRB (CodeReady Builder) de Rocky Linux 9
RUN dnf install -y epel-release dnf-plugins-core && \
    dnf config-manager --enable crb && \
    dnf install -y \
        golang \
        clang \
        llvm \
        libbpf-devel \
        kernel-headers \
        bpftool \
        make \
        && \
    dnf clean all

WORKDIR /build
COPY go.work go.work.sum* ./
COPY services/ja4ebpf/go.mod services/ja4ebpf/go.sum* ./services/ja4ebpf/
RUN cd services/ja4ebpf && go mod download 2>/dev/null; true

COPY services/ja4ebpf/ ./services/ja4ebpf/

WORKDIR /build/services/ja4ebpf
RUN GOWORK=off go generate ./internal/loader/ && \
    GOWORK=off CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
    go build -ldflags="-s -w" -o /out/ja4ebpf ./cmd/ja4ebpf/

# ── Stage 2 : runtime nginx + ja4ebpf ────────────────────────────────────────
FROM ${BASE_IMAGE}

RUN dnf install -y epel-release && \
    dnf install -y --allowerasing procps-ng nginx openssl curl && \
    dnf clean all

COPY --from=go-builder /out/ja4ebpf /usr/local/bin/ja4ebpf

# Configuration nginx : HTTP/2 + TLS auto-signé
RUN openssl req -x509 -nodes -days 365 \
        -subj "/CN=platform.test" \
        -newkey rsa:2048 \
        -keyout /etc/pki/tls/private/nginx.key \
        -out /etc/pki/tls/certs/nginx.crt && \
    mkdir -p /var/www/html && \
    echo '{"status":"ok","stack":"nginx"}' > /var/www/html/health && \
    mkdir -p /var/log/nginx /run/nginx

COPY tests/integration/nginx/platform/nginx.conf /etc/nginx/nginx.conf
COPY tests/integration/nginx/platform/ja4ebpf.yml /etc/ja4ebpf/config.yml
COPY tests/integration/nginx/platform/entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh

EXPOSE 80 443
CMD ["/entrypoint.sh"]