php/Dockerfile-alpine.template

FROM alpine:3.4

# persistent / runtime deps
ENV PHPIZE_DEPS \
		autoconf \
		dpkg-dev dpkg \
		file \
		g++ \
		gcc \
		libc-dev \
		make \
		pkgconf \
		re2c
RUN apk add --no-cache --virtual .persistent-deps \
		ca-certificates \
		curl \
		tar \
		xz

# ensure www-data user exists
RUN set -x \
	&& addgroup -g 82 -S www-data \
	&& adduser -u 82 -D -S -G www-data www-data
# 82 is the standard uid/gid for "www-data" in Alpine
# http://git.alpinelinux.org/cgit/aports/tree/main/apache2/apache2.pre-install?h=v3.3.2
# http://git.alpinelinux.org/cgit/aports/tree/main/lighttpd/lighttpd.pre-install?h=v3.3.2
# http://git.alpinelinux.org/cgit/aports/tree/main/nginx-initscripts/nginx-initscripts.pre-install?h=v3.3.2

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 %%GPG_KEYS%%

ENV PHP_VERSION %%PHP_VERSION%%
ENV PHP_URL="%%PHP_URL%%" PHP_ASC_URL="%%PHP_ASC_URL%%"
ENV PHP_SHA256="%%PHP_SHA256%%" PHP_MD5="%%PHP_MD5%%"

RUN set -xe; \
	\
	apk add --no-cache --virtual .fetch-deps \
		gnupg \
		openssl \
	; \
	\
	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 $GPG_KEYS; do \
			gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
		done; \
		gpg --batch --verify php.tar.xz.asc php.tar.xz; \
		rm -r "$GNUPGHOME"; \
	fi; \
	\
	apk del .fetch-deps

COPY docker-php-source /usr/local/bin/

RUN set -xe \
	&& apk add --no-cache --virtual .build-deps \
		$PHPIZE_DEPS \
		coreutils \
		curl-dev \
		libedit-dev \
		libxml2-dev \
		openssl-dev \
		pcre-dev \
		sqlite-dev \
	\
	&& export CFLAGS="$PHP_CFLAGS" \
		CPPFLAGS="$PHP_CPPFLAGS" \
		LDFLAGS="$PHP_LDFLAGS" \
	&& docker-php-source extract \
	&& cd /usr/src/php \
	&& gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)" \
	&& ./configure \
		--build="$gnuArch" \
		--with-config-file-path="$PHP_INI_DIR" \
		--with-config-file-scan-dir="$PHP_INI_DIR/conf.d" \
		\
		--disable-cgi \
		\
# --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 \
# --enable-mysqlnd is included here because it's harder to compile after the fact than extensions are (since it's a plugin for several extensions, not an extension in itself)
		--enable-mysqlnd \
		\
		--with-curl \
		--with-libedit \
		--with-openssl \
		--with-zlib \
		\
# bundled pcre is too old for s390x (which isn't exactly a good sign)
# /usr/src/php/ext/pcre/pcrelib/pcre_jit_compile.c:65:2: error: #error Unsupported architecture
		--with-pcre-regex=/usr \
		\
		$PHP_EXTRA_CONFIGURE_ARGS \
	&& make -j "$(nproc)" \
	&& make install \
	&& { find /usr/local/bin /usr/local/sbin -type f -perm +0111 -exec strip --strip-all '{}' + || true; } \
	&& make clean \
	&& docker-php-source delete \
	\
	&& runDeps="$( \
		scanelf --needed --nobanner --recursive /usr/local \
			| awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
			| sort -u \
			| xargs -r apk info --installed \
			| sort -u \
	)" \
	&& apk add --no-cache --virtual .php-rundeps $runDeps \
	\
	&& apk del .build-deps

COPY docker-php-ext-* docker-php-entrypoint /usr/local/bin/

ENTRYPOINT ["docker-php-entrypoint"]
##<autogenerated>##
CMD ["php", "-a"]
##</autogenerated>##