memcached 1.6.45 build recipe

github.com/memcached/memcached (1.6.45) at 2d51e364799bc9698bd4b11728ea978cea12da6e

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/memcached/memcached 1.6.45
• https://github.com/canonical/chisel/releases/download/v1.5.1/chisel_v1.5.1_linux_amd64.tar.gz
• https://github.com/canonical/chisel-releases/archive/f2600d3aa90123db6d44bb1441a99afc8b5847d9.tar.gz

• Base imagegolang:1.27.3-bookworm@sha256:972b4110ba0f47539a975c31e52c64765e1ff19f2d74469ae4a595c6676e80a5
• Base imageubuntu:24.04@sha256:fe81560990fae86dc4743202b2cb4d3df98d0bcf949173cecef15ce1127ef852
• BuildKitmoby/buildkit:v0.31.2
  sha256:e0e67ea9c4bb07bdef683e29f70f3b623d1eb9c82274a9ec04e6bb0511449fb0
• Build methodsource-rebuild-c
• SOURCE_DATE_EPOCH1794290163 (2026-11-10T05:56:03Z)
• Target digest (linux/amd64)sha256:a29b2054ef9bb710f02bfdd33e5f0d6206dfa05f00dea0cb773e3992923558ef
• Target config digestsha256:56d2a47142d1742e0b8ea81aba1424930ffd13905abed9c29b770c3cdfb805d9
• Checksummed kit files863 (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:fe81560990fae86dc4743202b2cb4d3df98d0bcf949173cecef15ce1127ef852 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/memcached-src/ .
ARG SOURCE_DATE_EPOCH=1794290163
ENV SOURCE_DATE_EPOCH=${SOURCE_DATE_EPOCH}
RUN ./configure --prefix=/opt/memcached --enable-tls
RUN make -j"$(nproc)"
RUN make install
RUN /opt/memcached/bin/memcached -V | grep -qx 'memcached 1.6.45'
RUN set -eu; find /opt/memcached -type f | LC_ALL=C sort | while read -r f; do \
      readelf -h "$f" >/dev/null 2>&1 || continue; \
      readelf -lW "$f" | sed -n 's/.*Requesting program interpreter: \(.*\)]$/\1/p'; \
      readelf -dW "$f" | sed -n 's/.*Shared library: \[\(.*\)\]$/\1/p'; \
    done | LC_ALL=C sort -u | while read -r lib; do case "$lib" in \
      /*) echo "$lib" ;; *) [ -n "$(find /opt/memcached -name "$lib" -print -quit)" ] || echo "$lib" ;; esac; \

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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. Your build platform runs
#                                     the build and signs that provenance with a key the build steps cannot reach
#                                     (see REBUILD.md). Any SLSA build level is your platform's; this archive claims
#                                     none. 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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