NGINX 1.31.8 build recipe

github.com/nginx/nginx (release-1.31.8) at 140aa942711868a8daeb95810bc9a81f272ada72

Fetched once, with the network on, by the vendor step (Dockerfile.vendor) when the kit was made; the offline build uses the kit's vendored copies:

• git https://github.com/nginx/nginx release-1.31.8

• Base imageubuntu:24.04@sha256:24737cef17f4e22b1977df7d9a05e77c4e28b7da5b8911f8d8ccda136bf3573c
• BuildKitmoby/buildkit:v0.31.2
  sha256:e0e67ea9c4bb07bdef683e29f70f3b623d1eb9c82274a9ec04e6bb0511449fb0
• Build methodsource-rebuild-c
• SOURCE_DATE_EPOCH1792592691 (2026-10-21T14:24:51Z)
• Target digest (linux/amd64)sha256:a15dcfdc9d381a8f199efba6a96fa8683d39b0dd6d4b2e81423bb023da1d102c
• Target config digestsha256:2814660efe9b3892353edad2f6eafcb9d200a598fad615819dddd50ea138ea4e
• Checksummed kit files1,257 (CHECKSUMS.sha256)

# GENERATED L-009 hermetic C build (--network=none, SBOM+SLSA-attestation-producing).
# Pinned bases; vendored source (in-tree deps) + extra build debs + runtime debs from Dockerfile.vendor.
FROM ubuntu:24.04@sha256:24737cef17f4e22b1977df7d9a05e77c4e28b7da5b8911f8d8ccda136bf3573c AS cbuild
# dpkg-install the vendored EXTRA build debs (pkg-config/libssl-dev/...) — gcc/make are in the builder.
RUN --mount=type=bind,source=vendored/build-debs,target=/tmp/bdebs \
    set --; for f in /tmp/bdebs/*.deb; do [ -e "$f" ] && set -- "$@" "$f"; done; \
    for pass in 1 2 3 4 5; do [ $# -eq 0 ] || dpkg -i --skip-same-version "$@" >/dev/null 2>&1 && break; done; \
    dpkg --configure -a && bad= && for d in "$@"; do p=$(dpkg-deb -f "$d" Package) v=$(dpkg-deb -f "$d" Version); \
      case "$(dpkg-query -W -f='${Version} ${db:Status-Abbrev}' "$p" 2>/dev/null)" in "$v ii"*) ;; *) bad="$bad $p=$v" ;; esac; done && \
    { [ -z "$bad" ] || { echo "vendored debs not installed at their vendored version:$bad" >&2; false; }; }
WORKDIR /src
COPY vendored/nginx-src/ .
ARG SOURCE_DATE_EPOCH=1792592691
ENV SOURCE_DATE_EPOCH=${SOURCE_DATE_EPOCH}
RUN ./auto/configure --prefix=/opt/nginx --sbin-path=/opt/nginx/sbin/nginx --modules-path=/opt/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=stderr --http-log-path=/dev/stdout --pid-path=/tmp/nginx.pid --lock-path=/tmp/nginx.lock --http-client-body-temp-path=/tmp/client_temp --http-proxy-temp-path=/tmp/proxy_temp --http-fastcgi-temp-path=/tmp/fastcgi_temp --http-uwsgi-temp-path=/tmp/uwsgi_temp --http-scgi-temp-path=/tmp/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-http_v3_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-pcre-jit --with-cc-opt='-O2 -fstack-protector-strong -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -Wl,--as-needed -pie'
RUN make -j"$(nproc)"
RUN make install
RUN mkdir -p /opt/nginx/conf && cp conf/mime.types conf/fastcgi_params conf/fastcgi.conf conf/scgi_params conf/uwsgi_params conf/koi-utf conf/koi-win conf/win-utf /opt/nginx/conf/
FROM ubuntu:24.04@sha256:24737cef17f4e22b1977df7d9a05e77c4e28b7da5b8911f8d8ccda136bf3573c
ENV DEBIAN_FRONTEND=noninteractive PATH=/opt/nginx/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
RUN --mount=type=bind,source=vendored/debs,target=/tmp/debs \
    set --; for f in /tmp/debs/*.deb; do [ -e "$f" ] && set -- "$@" "$f"; done; \
    for pass in 1 2 3 4 5; do [ $# -eq 0 ] || dpkg -i --skip-same-version "$@" >/dev/null 2>&1 && break; done; \
    dpkg --configure -a && bad= && for d in "$@"; do p=$(dpkg-deb -f "$d" Package) v=$(dpkg-deb -f "$d" Version); \

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#!/usr/bin/env bash
# =============================================================================
# ReadyStack — offline reproducible rebuild.
#
# Rebuilds this product's image from THIS ARCHIVE ALONE, with no network access
# of any kind, and prints the resulting linux/amd64 image-manifest digest.
# Run ./VERIFY_OFFLINE.sh afterwards to assert it equals the published digest.
#
# Requirements: linux/amd64 Docker host, docker buildx >= 0.30, jq, tar.
# No git, no registry access, no additional tooling.
#
#   ./BUILD_OFFLINE.sh                the rebuild (OCI image + a docker-loadable copy)
#   ./BUILD_OFFLINE.sh --provenance   the same rebuild with SLSA v1 build provenance (mode=max) attached to the OCI
#                                     image, generated by BuildKit, not by any build step. Run on your own hardened,
#                                     isolated build platform and sign that provenance with a key the build cannot
#                                     reach, and the result meets SLSA Build Level 3 (see REBUILD.md). The image
#                                     digest is the same either way.
# =============================================================================
set -euo pipefail
PROVENANCE=0
for arg in "$@"; do
  case "$arg" in
    --provenance) PROVENANCE=1 ;;
    -h|--help) sed -n '2,20p' "$0"; exit 0 ;;

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