initial docker image

.dockerignore

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+*.o
+*.so
+.depend
+Dockerfile

Dockerfile

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+FROM postgres:16-bookworm as base
+
+###
+### BUILDER
+###
+FROM base as builder
+
+RUN --mount=type=cache,target=/var/cache/apt \
+  apt-get update -qq && \
+  apt-get install -y build-essential libreadline-dev zlib1g-dev flex bison libxml2-dev libxslt-dev \
+  libssl-dev libxml2-utils xsltproc pkg-config libc++-dev libc++abi-dev libglib2.0-dev libtinfo5 cmake \
+  libstdc++-12-dev postgresql-server-dev-16 liblz4-dev ccache
+
+WORKDIR /build
+
+ENV PATH=/usr/lib/ccache:$PATH
+ENV CCACHE_DIR=/ccache
+
+# A more selective copy might be nice, but the git submodules are not cooperative.
+# Instead, use .dockerignore to not copy files here.
+COPY . .
+
+RUN make clean
+
+# permissions so we can run as `postgres` (uid=999,gid=999)
+RUN chown -R postgres:postgres .
+RUN chown -R postgres:postgres /usr/lib/postgresql /usr/share/postgresql
+RUN mkdir /out && chown postgres:postgres /out
+RUN rm -f .depend
+
+USER postgres
+RUN --mount=type=cache,target=/ccache/,uid=999,gid=999 make install
+RUN --mount=type=cache,target=/ccache/,uid=999,gid=999 DESTDIR=/out make install
+
+###
+### CHECKER
+###
+FROM builder as checker
+
+USER postgres
+RUN --mount=type=cache,target=/ccache/,uid=999,gid=999 make installcheck
+
+###
+### OUTPUT
+###
+# this creates a usable postgres image but without the packages needed to build
+FROM base as output
+COPY --from=builder /out /