# ── Dockerfile.slim ──────────────────────────────────────────────────────────

# Minimal production image: the pre-built PHAR dropped into a PHP Alpine base.

# No Composer, no source code, no build tools.

#

# Image size: ~120 MB (vs ~600 MB for the full Dockerfile)

#

# Build (requires dist/dbdiff.phar to exist — built by `vendor/bin/box compile`):

# docker build -f docker/Dockerfile.slim -t dbdiff:slim .

#

# Run:

# docker run --rm dbdiff:slim --version

# docker run --rm dbdiff:slim --driver=mysql \

# --server1=user:pass@host:3306 server1.mydb:server1.mydb

#

# Pull from registries (built and pushed on every release):

# docker pull dbdiff/dbdiff:latest # Docker Hub (slim)

# docker pull ghcr.io/dbdiff/dbdiff:latest # GHCR (slim)

# ─────────────────────────────────────────────────────────────────────────────

ARG PHP_VERSION=8.3

FROM php:${PHP_VERSION}-cli-alpine

LABEL org.opencontainers.image.title="DBDiff" \

org.opencontainers.image.description="Database schema and data diff tool — slim (PHAR) image" \

org.opencontainers.image.url="https://github.com/DBDiff/DBDiff" \

org.opencontainers.image.source="https://github.com/DBDiff/DBDiff"

# Install runtime libraries + PDO extensions.

# .build-deps are removed from final layer to keep the image lean.

RUN apk add --no-cache --virtual .build-deps \

libpq-dev sqlite-dev \

&& apk add --no-cache \

libpq sqlite-libs \

&& docker-php-ext-install -j"$(nproc)" \

pdo pdo_mysql pdo_pgsql pdo_sqlite \

&& apk del .build-deps \

&& rm -rf /var/cache/apk/* /tmp/*

WORKDIR /work

# Copy the pre-built PHAR (produced by `vendor/bin/box compile`)

COPY dist/dbdiff.phar /usr/local/bin/dbdiff

RUN chmod +x /usr/local/bin/dbdiff

# Drop root — run as a dedicated non-privileged user

RUN adduser -D -s /bin/sh dbdiff

USER dbdiff

ENTRYPOINT ["dbdiff"]