refs #24354 [finc] add Dockerfile for php 8.0

* fix xdebug settings
* fix gd library for dynamic covers
* set php version as variable in .env file
** for local development: copy .env.local to .env
** after changing run "docker-compose build php" or "docker-compose up --build --force-recreate" to start immediately

* also refs 23937

.env.local

+PHPVERSION=php7_2
\ No newline at end of file

devops/docker/php8_0/Dockerfile

+# Copyright (C) 2023  Leipzig University Library
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# @author  Sebastian Kehr <kehr@ub.uni-leipzig.de>
+# @license https://opensource.org/licenses/GPL-3.0 GNU GPLv3
+
+FROM php:8.0-fpm-alpine
+RUN apk add --no-cache $PHPIZE_DEPS freetype-dev libxml2-dev icu-dev libxslt-dev \
+    && pecl install xdebug-3.0.0 \
+    && docker-php-ext-enable xdebug \
+    && docker-php-ext-install mysqli \
+    && docker-php-ext-install pdo_mysql \
+    && docker-php-ext-install soap \
+    && docker-php-ext-install intl \
+    && docker-php-ext-install dom \
+    && docker-php-ext-install xsl
+
+RUN apk add --no-cache \
+        libjpeg-turbo-dev \
+        libpng-dev \
+        libwebp-dev \
+        freetype-dev
+
+RUN docker-php-ext-configure gd --with-jpeg --with-webp --with-freetype
+RUN docker-php-ext-install gd
+
+COPY php.ini /usr/local/etc/php/conf.d/php.ini
\ No newline at end of file

devops/docker/php8_0/entrypoint.sh

+#!/usr/bin/env sh
+# Copyright (C) 2020  Leipzig University Library
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# @author  Sebastian Kehr <kehr@ub.uni-leipzig.de>
+# @license https://opensource.org/licenses/GPL-3.0 GNU GPLv3
+
+until ! (ping -c1 env >/dev/null 2>&1) && [ -f ./data/docker/env/php ]; do :; done
+set -a; . ./data/docker/env/php; set +a
+
+: "${UIDGID:=$(stat -c '%u' .):$(stat -c '%g' .)}"
+sed -i "s/$(id -u www-data):$(id -g www-data)/$UIDGID/" /etc/passwd
+exec docker-php-entrypoint "$@"

devops/docker/php8_0/php.ini

+;  Copyright (C) 2020  Leipzig University Library
+; 
+;  This program is free software: you can redistribute it and/or modify
+;  it under the terms of the GNU General Public License as published by
+;  the Free Software Foundation, either version 3 of the License, or
+;  (at your option) any later version.
+; 
+;  This program is distributed in the hope that it will be useful,
+;  but WITHOUT ANY WARRANTY; without even the implied warranty of
+;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;  GNU General Public License for more details.
+; 
+;  You should have received a copy of the GNU General Public License
+;  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+; 
+;  @author  Sebastian Kehr <kehr@ub.uni-leipzig.de>
+;  @license https://opensource.org/licenses/GPL-3.0 GNU GPLv3
+
+; See https://www.php.net/manual/en/function.error-reporting.php for more details.
+error_reporting = E_ALL
+
+; See https://xdebug.org/docs/all_settings for more details.
+xdebug.mode=debug
+xdebug.start_with_request=yes
+xdebug.remote_handler=dbgp
+xdebug.discover_client_host=1
+xdebug.client_port=9000
+short_open_tag=Off;
\ No newline at end of file

docker-compose.yml

@@ -21,14 +21,14 @@ services:
     command: ["install"]
 
   php:
-    build: devops/docker/php
+    build: devops/docker/${PHPVERSION:-php7_2}
     working_dir: /usr/local/vufind
     volumes:
       - ./:/usr/local/vufind
     depends_on:
       - env
       - db
-    entrypoint: ["devops/docker/php/entrypoint.sh"]
+    entrypoint: devops/docker/${PHPVERSION:-php7_2}/entrypoint.sh
     command: ["php-fpm"]
 
   httpd: