feat: Add litmus test image with current PHP version (8.3)

Signed-off-by: Ferdinand Thiessen <[email protected]>

integration-php8.3/Dockerfile

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+FROM ghcr.io/nextcloud/continuous-integration-php8.3:latest
+
+RUN mkdir /tmp/server && \
+    cd /tmp/server && git clone --recursive https://github.com/nextcloud/server.git && \
+    cd /tmp/server/server/build/integration && composer install && \
+    cd /tmp/server/server/tests/acceptance && composer install && \
+    rm -rf /tmp/server

litmus-php8.3/Dockerfile

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+FROM ghcr.io/nextcloud/continuous-integration-php8.3:latest
+
+RUN apt-get update && apt-get install -y gcc coreutils make python && \
+    mkdir -p /tmp/litmus && \
+    wget -O /tmp/litmus/litmus-0.13.tar.gz http://www.webdav.org/neon/litmus/litmus-0.13.tar.gz && \
+    cd /tmp/litmus && tar -xzf litmus-0.13.tar.gz && \
+    cd /tmp/litmus/litmus-0.13 && ./configure && make && rm -f /tmp/litmus-0.13.tar.gz && \
+    apt-get clean

php8.3/Dockerfile

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+FROM debian:buster
+RUN apt-get update && apt-get install -y wget gnupg2 libzip4 apt-transport-https lsb-release ca-certificates && \
+    wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg && \
+    echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list && \
+    apt-get update && apt-get install -y php8.3-intl php8.3-gd git curl \
+    php8.3-cli php8.3-curl php8.3-pgsql php8.3-ldap \
+    php8.3-sqlite php8.3-mysql php8.3-zip php8.3-xml \
+    php8.3-redis php8.3-imagick php8.3-xdebug php8.3-apcu \
+    php8.3-mbstring make libmagickcore-6.q16-2-extra && \
+    apt-get autoremove -y && apt-get autoclean && apt-get clean && \
+    rm -rf /tmp/* /var/tmp/* /var/lib/apt/lists/*
+
+RUN phpenmod zip intl gd systemd
+RUN curl -O -L https://phar.phpunit.de/phpunit-9.5.28.phar \
+    && chmod +x phpunit-9.5.28.phar \
+    && mv phpunit-9.5.28.phar /usr/local/bin/phpunit
+RUN curl -O -L https://getcomposer.org/download/2.5.1/composer.phar \
+    && chmod +x composer.phar \
+    && mv composer.phar /usr/local/bin/composer
+
+RUN phpdismod xdebug
+ADD nextcloud.ini /etc/php/8.3/cli/conf.d/nextcloud.ini

php8.3/nextcloud.ini

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+memory_limit = 768M
+phar.readonly = 0 ; only for building phar files on CI - should be disabled on production environments
+; Opcache
+opcache.enable=1
+opcache.enable_cli=1
+opcache.interned_strings_buffer=8
+opcache.max_accelerated_files=10000
+opcache.memory_consumption=128
+opcache.save_comments=1
+opcache.revalidate_freq=1