add Dockerfile.php8

Dockerfile.php8

@@ -0,0 +1,85 @@
+# Stage 1:
+# - Resolve PHP dependencies with Composer
+FROM composer:latest as composer
+COPY composer.json composer.lock /tmp/shaarli/
+WORKDIR /tmp/shaarli
+RUN composer --prefer-dist --no-dev install
+RUN composer update --ignore-platform-req=php && \
+    composer remove --dev --ignore-platform-req=php phpunit/phpunit && \
+    composer require --dev --ignore-platform-req=php phpunit/php-text-template ^2.0 && \
+    composer require --dev --ignore-platform-req=php phpunit/phpunit ^9.0
+
+# Stage 2:
+# - Frontend dependencies
+FROM node:12-alpine as app
+COPY --chown=nginx:nginx . /tmp/shaarli/
+WORKDIR /tmp/shaarli
+RUN yarn install \
+    && yarn run build \
+    && rm -rf ./node_modules
+
+# Stage 3:
+# - Build documentation
+FROM python:3-alpine as docs
+
+COPY mkdocs.yml /tmp/shaarli/
+COPY --chown=nginx:nginx doc /tmp/shaarli/doc/
+WORKDIR /tmp/shaarli/
+RUN pip install --no-cache-dir mkdocs \
+    && mkdocs build --clean
+
+# Stage 4:
+# - Shaarli image
+LABEL maintainer="Shaarli Community"
+
+FROM alpine:3.14 as php
+WORKDIR /var/www
+
+# Invalidation cache while new release
+COPY --chown=nginx:nginx shaarli_version.php /var/www/shaarli/
+
+RUN apk --update add \
+        ca-certificates \
+        nginx \
+        php8 \
+        php8-ctype \
+        php8-curl \
+        php8-fpm \
+        php8-gd \
+        php8-iconv \
+        php8-intl \
+        php8-json \
+        php8-mbstring \
+        php8-openssl \
+        php8-session \
+        php8-xml \
+        php8-simplexml \
+        php8-zlib \
+        s6
+
+COPY --chown=nginx:nginx .docker/nginx.conf /etc/nginx/nginx.conf
+COPY --chown=nginx:nginx .docker/php-fpm.conf /etc/php8/php-fpm.conf
+COPY --chown=nginx:nginx .docker/services.d /etc/services.d
+RUN sed -i 's/php-fpm7/php-fpm8/' /etc/services.d/php-fpm/run
+
+RUN rm -rf /etc/php8/php-fpm.d/www.conf \
+    && sed -i 's/post_max_size.*/post_max_size = 10M/' /etc/php8/php.ini \
+    && sed -i 's/upload_max_filesize.*/upload_max_filesize = 10M/' /etc/php8/php.ini
+
+COPY --chown=nginx:nginx --from=composer /tmp/shaarli /var/www/shaarli/
+COPY --chown=nginx:nginx --from=app /tmp/shaarli /var/www/shaarli/
+COPY --chown=nginx:nginx --from=docs /tmp/shaarli /var/www/shaarli/
+
+# disabled due to https://github.com/docker/for-linux/issues/388
+#RUN chown -R nginx:nginx /var/www/shaarli/
+
+RUN ln -sf /dev/stdout /var/log/nginx/shaarli.access.log \
+    && ln -sf /dev/stderr /var/log/nginx/shaarli.error.log
+
+VOLUME /var/www/shaarli/cache
+VOLUME /var/www/shaarli/data
+
+EXPOSE 80
+
+ENTRYPOINT ["/bin/s6-svscan", "/etc/services.d"]
+CMD []