# Lean alpine+pgvector build — postgres:16-alpine base with pgvector v0.8.0 compiled from source.
# Build deps are installed and removed in the same RUN layer so they do not bloat the final image.

ARG PG_MAJOR=16
FROM postgres:${PG_MAJOR}-alpine

ARG PG_MAJOR
ARG PGVECTOR_VERSION=v0.8.0

RUN apk add --no-cache --virtual .build-deps \
        build-base \
        clang15 \
        llvm15 \
        git \
        postgresql${PG_MAJOR}-dev \
    && git clone --branch ${PGVECTOR_VERSION} --depth 1 \
        https://github.com/pgvector/pgvector.git /tmp/pgvector \
    && cd /tmp/pgvector \
    && make clean \
    && make OPTFLAGS="" \
    && make install \
    && rm -rf /tmp/pgvector \
    && apk del .build-deps