feat: chialab/php-compat images

.github/workflows/compat.yml

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+name: Build, test and publish compatibility images
+
+on:
+  schedule:
+    # chosen by fair dice roll
+    - cron: '42 18 * * 3'
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  test:
+    name: Build and test images
+    runs-on: ubuntu-latest
+    if: ${{ !contains(github.event.commits[0].message, '[skip ci]') && !contains(github.event.commits[0].message, '[ci skip]') }}
+    strategy:
+      matrix:
+        version: [ '5.6' ]
+        flavor: [ '', '-apache', '-fpm' ]
+    services:
+      registry:
+        image: registry:2
+        ports:
+          - 5000:5000
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Build image for testing
+        uses: docker/build-push-action@v5
+        with:
+          cache-from: type=registry,ref=chialab/php-compat:${{ matrix.version }}${{ matrix.flavor }}
+          cache-to: type=inline
+          context: ./compat
+          file: ${{ format('compat/{0}.{1}{2}', 'Dockerfile', matrix.version, matrix.flavor) }}
+          tags: localhost:5000/chialab/php-compat:${{ matrix.version }}${{ matrix.flavor }}
+          push: true
+
+      - name: Test image
+        env:
+          REGISTRY: localhost:5000/
+          VERSION: ${{ matrix.version }}${{ matrix.flavor }}
+        run: 'docker pull localhost:5000/chialab/php-compat:${{ matrix.version }}${{ matrix.flavor }} && make -C compat test'
+
+  publish:
+    name: Build and publish multi-architecture images
+    runs-on: ubuntu-latest
+    needs: test
+    if: ${{ github.event_name != 'pull_request' && !contains(github.event.commits[0].message, '[skip ci]') && !contains(github.event.commits[0].message, '[ci skip]') }}
+    strategy:
+      matrix:
+        version: [ '5.6' ]
+        flavor: [ '', '-apache', '-fpm' ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        run: |
+          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          driver-opts: network=host
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build image and push to registry
+        uses: docker/build-push-action@v5
+        with:
+          platforms: linux/amd64,linux/arm64
+          cache-from: type=registry,ref=chialab/php-compat:${{ matrix.version }}${{ matrix.flavor }}
+          cache-to: type=inline
+          context: ./compat
+          file: ${{ format('compat/{0}.{1}{2}', 'Dockerfile', matrix.version, matrix.flavor) }}
+          tags: |
+            chialab/php-compat:${{ matrix.version }}${{ matrix.flavor }}
+            ghcr.io/chialab/php-compat:${{ matrix.version }}${{ matrix.flavor }}
+          push: true

compat/Dockerfile.5.6

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+#
+# This is taken from the official PHP image's Dockerfile (https://github.com/docker-library/php/tree/783878384a8f3953ed571e5a34ba0fe546726c85)
+# and slightly fixed to work in this day and age.
+#
+
+FROM debian:stretch-slim
+
+LABEL maintainer="[email protected]"
+
+# Fix Debian 9 (Stretch) source list, because it has been moved to archive, and update packages.
+RUN sed -i -e 's/deb.debian.org/archive.debian.org/g' \
+           -e 's/security.debian.org/archive.debian.org/g' \
+           -e '/stretch-updates/d' /etc/apt/sources.list \
+    && apt-get update && apt-get upgrade -y
+
+# prevent Debian's PHP packages from being installed
+# https://github.com/docker-library/php/pull/542
+RUN set -eux; \
+	{ \
+		echo 'Package: php*'; \
+		echo 'Pin: release *'; \
+		echo 'Pin-Priority: -1'; \
+	} > /etc/apt/preferences.d/no-debian-php
+
+# dependencies required for running "phpize"
+# (see persistent deps below)
+ENV PHPIZE_DEPS \
+		autoconf \
+		dpkg-dev \
+		file \
+		g++ \
+		gcc \
+		libc-dev \
+		make \
+		pkg-config \
+		re2c
+
+# persistent / runtime deps
+RUN apt-get update && apt-get install -y \
+		$PHPIZE_DEPS \
+		ca-certificates \
+		curl \
+		xz-utils \
+	--no-install-recommends && rm -r /var/lib/apt/lists/*
+
+ENV PHP_INI_DIR /usr/local/etc/php
+RUN mkdir -p $PHP_INI_DIR/conf.d
+
+##<autogenerated>##
+##</autogenerated>##
+
+# Apply stack smash protection to functions using local buffers and alloca()
+# Make PHP's main executable position-independent (improves ASLR security mechanism, and has no performance impact on x86_64)
+# Enable optimization (-O2)
+# Enable linker optimization (this sorts the hash buckets to improve cache locality, and is non-default)
+# Adds GNU HASH segments to generated executables (this is used if present, and is much faster than sysv hash; in this configuration, sysv hash is also generated)
+# https://github.com/docker-library/php/issues/272
+ENV PHP_CFLAGS="-fstack-protector-strong -fpic -fpie -O2"
+ENV PHP_CPPFLAGS="$PHP_CFLAGS"
+ENV PHP_LDFLAGS="-Wl,-O1 -Wl,--hash-style=both -pie"
+
+ENV GPG_KEYS 0BD78B5F97500D450838F95DFE857D9A90D90EC1 6E4F6AB321FDC07F2C332E3AC2BF0BC433CFC8B3
+
+ENV PHP_VERSION 5.6.40
+ENV PHP_URL="https://secure.php.net/get/php-5.6.40.tar.xz/from/this/mirror" PHP_ASC_URL="https://secure.php.net/get/php-5.6.40.tar.xz.asc/from/this/mirror"
+ENV PHP_SHA256="1369a51eee3995d7fbd1c5342e5cc917760e276d561595b6052b21ace2656d1c" PHP_MD5=""
+
+RUN set -xe; \
+	\
+	fetchDeps=' \
+		wget \
+	'; \
+	if ! command -v gpg > /dev/null; then \
+		fetchDeps="$fetchDeps \
+			dirmngr \
+			gnupg \
+		"; \
+	fi; \
+	apt-get update; \
+	apt-get install -y --no-install-recommends $fetchDeps; \
+	rm -rf /var/lib/apt/lists/*; \
+	\
+	mkdir -p /usr/src; \
+	cd /usr/src; \
+	\
+	wget -O php.tar.xz "$PHP_URL"; \
+	\
+	if [ -n "$PHP_SHA256" ]; then \
+		echo "$PHP_SHA256 *php.tar.xz" | sha256sum -c -; \
+	fi; \
+	if [ -n "$PHP_MD5" ]; then \
+		echo "$PHP_MD5 *php.tar.xz" | md5sum -c -; \
+	fi; \
+	\
+	if [ -n "$PHP_ASC_URL" ]; then \
+		wget -O php.tar.xz.asc "$PHP_ASC_URL"; \
+		export GNUPGHOME="$(mktemp -d)"; \
+		for key in $GPG_KEYS; do \
+			gpg --batch --keyserver keyserver.ubuntu.com --recv-keys "$key"; \
+		done; \
+		gpg --batch --verify php.tar.xz.asc php.tar.xz; \
+		command -v gpgconf > /dev/null && gpgconf --kill all; \
+		rm -rf "$GNUPGHOME"; \
+	fi; \
+	\
+	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false $fetchDeps
+
+COPY --from=php:5.6 /usr/local/bin/docker-php-source /usr/local/bin/
+
+RUN set -eux; \
+	\
+	savedAptMark="$(apt-mark showmanual)"; \
+	apt-get update; \
+	apt-get install -y --no-install-recommends \
+		libcurl4-openssl-dev \
+		libedit-dev \
+		libsqlite3-dev \
+		libssl1.0-dev \
+		libxml2-dev \
+		zlib1g-dev \
+        libmariadb2 libmariadbclient-dev-compat \
+		${PHP_EXTRA_BUILD_DEPS:-} \
+	; \
+	rm -rf /var/lib/apt/lists/*; \
+	\
+	export \
+		CFLAGS="$PHP_CFLAGS" \
+		CPPFLAGS="$PHP_CPPFLAGS" \
+		LDFLAGS="$PHP_LDFLAGS" \
+	; \
+	docker-php-source extract; \
+	cd /usr/src/php; \
+	gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
+	debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
+# https://bugs.php.net/bug.php?id=74125
+	if [ ! -d /usr/include/curl ]; then \
+		ln -sT "/usr/include/$debMultiarch/curl" /usr/local/include/curl; \
+	fi; \
+	./configure \
+		--build="$gnuArch" \
+		--with-config-file-path="$PHP_INI_DIR" \
+		--with-config-file-scan-dir="$PHP_INI_DIR/conf.d" \
+		\
+# make sure invalid --configure-flags are fatal errors intead of just warnings
+		--enable-option-checking=fatal \
+		\
+# https://github.com/docker-library/php/issues/439
+		--with-mhash \
+		\
+# --enable-ftp is included here because ftp_ssl_connect() needs ftp to be compiled statically (see https://github.com/docker-library/php/issues/236)
+		--enable-ftp \
+# --enable-mbstring is included here because otherwise there's no way to get pecl to use it properly (see https://github.com/docker-library/php/issues/195)
+		--enable-mbstring \
+# Use MariaDB's libmysqlclient library instead of mysqlnd to be able to communicate with MySQL 8+, which uses new locales of the utf8mb4 family that are unknown to old mysqlnd
+        --disable-mysqlnd \
+        --with-mysql="/usr" \
+        --with-mysqli="/usr/bin/mysql_config" \
+        --with-pdo-mysql="/usr" \
+		\
+		--with-curl \
+		--with-libedit \
+		--with-openssl \
+		--with-zlib \
+		\
+# bundled pcre does not support JIT on s390x
+# https://manpages.debian.org/stretch/libpcre3-dev/pcrejit.3.en.html#AVAILABILITY_OF_JIT_SUPPORT
+		$(test "$gnuArch" = 's390x-linux-gnu' && echo '--without-pcre-jit') \
+		--with-libdir="lib/$debMultiarch" \
+		\
+		${PHP_EXTRA_CONFIGURE_ARGS:-} \
+	; \
+	make -j "$(nproc)"; \
+	make install; \
+	find /usr/local/bin /usr/local/sbin -type f -executable -exec strip --strip-all '{}' + || true; \
+	make clean; \
+	\
+# https://github.com/docker-library/php/issues/692 (copy default example "php.ini" files somewhere easily discoverable)
+	cp -v php.ini-* "$PHP_INI_DIR/"; \
+	\
+	cd /; \
+	docker-php-source delete; \
+	\
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+	apt-mark auto '.*' > /dev/null; \
+	[ -z "$savedAptMark" ] || apt-mark manual $savedAptMark; \
+	find /usr/local -type f -executable -exec ldd '{}' ';' \
+		| awk '/=>/ { print $(NF-1) }' \
+		| sort -u \
+		| xargs -r dpkg-query --search \
+		| cut -d: -f1 \
+		| sort -u \
+		| xargs -r apt-mark manual \
+	; \
+	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+	\
+	php --version; \
+	\
+# https://github.com/docker-library/php/issues/443
+	pecl update-channels; \
+	rm -rf /tmp/pear ~/.pearrc
+
+COPY --from=php:5.6 /usr/local/bin/docker-php-ext-* /usr/local/bin/docker-php-entrypoint /usr/local/bin/
+
+ENTRYPOINT ["docker-php-entrypoint"]
+##<autogenerated>##
+CMD ["php", "-a"]
+##</autogenerated>##
+
+# Download script to install PHP extensions and dependencies
+ADD https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions /usr/local/bin/
+
+RUN chmod +x /usr/local/bin/install-php-extensions
+
+RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -qq -y \
+      curl \
+      git \
+      zip unzip \
+# iconv, mbstring and pdo_sqlite are omitted as they are already installed
+    && PHP_EXTENSIONS=" \
+      amqp \
+      bcmath \
+      bz2 \
+      calendar \
+      event \
+      exif \
+      gd \
+      gettext \
+      imagick \
+      intl \
+      ldap \
+      mcrypt \
+      memcached \
+      mysql \
+      mysqli \
+      opcache \
+      pdo_mysql \
+      pdo_pgsql \
+      pgsql \
+      redis \
+      soap \
+      sockets \
+      xsl \
+      zip \
+    " \
+    && install-php-extensions $PHP_EXTENSIONS
+
+# Install Composer.
+ENV PATH=$PATH:/root/composer/vendor/bin \
+  COMPOSER_ALLOW_SUPERUSER=1 \
+  COMPOSER_HOME=/root/composer
+RUN cd /opt \
+  # Download installer and check for its integrity.
+  && curl -sSL https://getcomposer.org/installer > composer-setup.php \
+  && curl -sSL https://composer.github.io/installer.sha384sum > composer-setup.sha384sum \
+  && sha384sum --check composer-setup.sha384sum \
+  # Install Composer 2.
+  && php composer-setup.php --install-dir=/usr/local/bin --filename=composer --2 \
+  # Remove installer files.
+  && rm /opt/composer-setup.php /opt/composer-setup.sha384sum