Files
sso-manager-node/Dockerfile.openldap-builder
wmantly c30975329c feat: publish a prebuilt OpenLDAP-with-nestgroup base image (#187)
Extracts Dockerfile.openldap's `ldapbuild` stage (compile OpenLDAP from
source for the nestgroup overlay, ~5 min, dependent on git.openldap.org
being reachable) into its own Dockerfile, built and pushed to
ghcr.io/theta42/openldap-nestgroup by this workflow whenever the pinned
commit changes.

This commit only adds the new image + workflow; Dockerfile.openldap itself
still compiles from source. A follow-up change switches it to FROM the
published image once this workflow has run once and the image exists.

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-09 16:54:36 -07:00

76 lines
3.4 KiB
Docker

# OpenLDAP-with-nestgroup builder, published to
# ghcr.io/theta42/openldap-nestgroup:<OPENLDAP_COMMIT short hash>.
#
# Extracted out of Dockerfile.openldap's `ldapbuild` stage so the ~5 minute
# from-source compile (which also depends on git.openldap.org being up)
# happens once, here, instead of on every `docker build` of the app image --
# including every CI run's 3-way test matrix. Dockerfile.openldap's ldapbuild
# stage becomes `FROM ghcr.io/theta42/openldap-nestgroup:<commit>` and the
# rest of that file (the COPY --from=ldapbuild lines) is unchanged, since
# COPY --from also accepts an external image, not just a local stage name.
#
# Bumping OPENLDAP_COMMIT is a two-step change: update the ARG below, push
# (the build-openldap-image workflow rebuilds+republishes the tag on changes
# to this file), then update the matching FROM line in Dockerfile.openldap.
#
# See Dockerfile.openldap's own "OpenLDAP from source" comment for *why*
# from-source at all (the nestgroup overlay, ITS#10161) and the LMDB format
# note (master's 1.0.0 vs 2.6.x's 0.9.x).
FROM node:20-alpine AS build
# groff is not optional despite producing nothing we ship: the build descends
# into doc/man unconditionally and its Makefile calls soelim, which groff
# provides. Without it the whole `make` fails at the man-page stage
# ("soelim: not found") long after slapd itself has compiled fine.
RUN apk add --no-cache \
build-base autoconf automake libtool \
openssl-dev cyrus-sasl-dev \
git make pkgconf util-linux-dev groff
# Pinned to an exact commit, not a branch tip -- see Dockerfile.openldap for
# why (this is the directory server the whole lab authenticates against).
ARG OPENLDAP_COMMIT=350e9eb38b2270c2bad97c61ee02e85fb8f3196d
WORKDIR /src
RUN git init -q . \
&& git remote add origin https://git.openldap.org/openldap/openldap.git \
&& git fetch -q --depth 1 origin "${OPENLDAP_COMMIT}" \
&& git checkout -q FETCH_HEAD \
&& git rev-parse HEAD > /opt-openldap-commit.txt
# Overlays are built as loadable modules (=mod) because docker-entrypoint.sh
# `moduleload`s them individually; nestgroup joins that set.
RUN ./configure \
--prefix=/opt/openldap \
--enable-slapd \
--enable-modules \
--enable-mdb \
--enable-memberof=mod \
--enable-refint=mod \
--enable-ppolicy=mod \
--enable-dynlist=mod \
--enable-nestgroup=mod \
--enable-syncprov=mod \
--enable-auditlog=mod \
--with-tls=openssl \
--with-cyrus-sasl \
&& make depend \
&& make -j"$(nproc)" \
&& make install
# pw-sha2 provides {SSHA512}, which every existing user password is stored as.
# It lives in contrib and is not covered by the configure flags above, so it is
# built separately against the just-built tree -- omitting it would make every
# user password unverifiable.
RUN cd contrib/slapd-modules/passwd/sha2 \
&& make prefix=/opt/openldap OPENLDAP_SRC=/src \
&& cp .libs/pw-sha2.so* /opt/openldap/libexec/openldap/
# Pure artifact holder -- no shell, no package manager, nothing but the
# compiled tree. Dockerfile.openldap's COPY --from=ldapbuild only ever reads
# files, never RUNs anything in this stage, so scratch is sufficient and
# keeps the published image (and every pull of it) as small as possible.
FROM scratch
COPY --from=build /opt/openldap /opt/openldap
COPY --from=build /opt-openldap-commit.txt /opt-openldap-commit.txt