Dockerfile

# the different stages of this Dockerfile are meant to be built into separate images
# https://docs.docker.com/develop/develop-images/multistage-build/#stop-at-a-specific-build-stage
# https://docs.docker.com/compose/compose-file/#target


# https://docs.docker.com/engine/reference/builder/#understand-how-arg-and-from-interact
ARG PHP_VERSION=8.2
ARG CADDY_VERSION=2.7

# "php" stage
FROM php:${PHP_VERSION}-fpm-alpine AS symfony_php

# php extensions installer: https://github.com/mlocati/docker-php-extension-installer
COPY --from=mlocati/php-extension-installer /usr/bin/install-php-extensions /usr/local/bin/

# persistent / runtime deps
RUN apk add --no-cache \
		acl \
		fcgi \
		file \
		gettext \
		git \
	;

RUN set -eux; \
	install-php-extensions \
		intl \
		zip \
		apcu \
		opcache \
	;

###> recipes ###
###> doctrine/doctrine-bundle ###
RUN set -eux; \
	install-php-extensions pdo_pgsql
###< doctrine/doctrine-bundle ###
###< recipes ###

COPY docker/php/docker-healthcheck.sh /usr/local/bin/docker-healthcheck
RUN chmod +x /usr/local/bin/docker-healthcheck

HEALTHCHECK --interval=10s --timeout=3s --retries=3 CMD ["docker-healthcheck"]

RUN ln -s $PHP_INI_DIR/php.ini-production $PHP_INI_DIR/php.ini
COPY docker/php/conf.d/symfony.prod.ini $PHP_INI_DIR/conf.d/symfony.ini

COPY docker/php/php-fpm.d/zz-docker.conf /usr/local/etc/php-fpm.d/zz-docker.conf

COPY docker/php/docker-entrypoint.sh /usr/local/bin/docker-entrypoint
RUN chmod +x /usr/local/bin/docker-entrypoint

VOLUME /var/run/php

COPY --from=composer/composer:2-bin /composer /usr/bin/composer

# https://getcomposer.org/doc/03-cli.md#composer-allow-superuser
ENV COMPOSER_ALLOW_SUPERUSER=1

ENV PATH="${PATH}:/root/.composer/vendor/bin"

WORKDIR /srv/app

# Allow to choose skeleton
ARG SKELETON="symfony/skeleton"
ENV SKELETON ${SKELETON}

# Allow to use development versions of Symfony
ARG STABILITY="stable"
ENV STABILITY ${STABILITY}

# Allow to select skeleton version
ARG SYMFONY_VERSION=""
ENV SYMFONY_VERSION ${SYMFONY_VERSION}

# Download the Symfony skeleton and leverage Docker cache layers
RUN composer create-project "${SKELETON} ${SYMFONY_VERSION}" . --stability=$STABILITY --prefer-dist --no-dev --no-progress --no-interaction; \
	composer clear-cache

COPY . .

RUN set -eux; \
	mkdir -p var/cache var/log; \
	composer install --prefer-dist --no-dev --no-progress --no-scripts --no-interaction; \
	composer dump-autoload --classmap-authoritative --no-dev; \
	composer symfony:dump-env prod; \
	composer run-script --no-dev post-install-cmd; \
	chmod +x bin/console; sync
VOLUME /srv/app/var

ENTRYPOINT ["docker-entrypoint"]
CMD ["php-fpm"]

FROM caddy:${CADDY_VERSION}-builder-alpine AS symfony_caddy_builder

RUN xcaddy build \
	--with github.com/dunglas/mercure/caddy \
	--with github.com/dunglas/vulcain/caddy

FROM caddy:${CADDY_VERSION} AS symfony_caddy

WORKDIR /srv/app

COPY --from=symfony_caddy_builder /usr/bin/caddy /usr/bin/caddy
COPY --from=symfony_php /srv/app/public public/
COPY docker/caddy/Caddyfile /etc/caddy/Caddyfile