Provide the commands to run Symfony Tests through Docker 🐳

.docker/Dockerfile

@@ -0,0 +1,29 @@
+ARG DOCKER_PHP_VERSION=8.2
+
+FROM php:${DOCKER_PHP_VERSION}-cli-bullseye
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+# git is required to allow Composer to work with symfony/runtime
+# ext-xsl is required by lorenzo/pinky through twig/inky-extra
+# libonig-dev is required by the mbstring extension
+# zip will allow Composer to install dependencies without using git clone,
+# so that it won't hit the rate limits of Github
+RUN apt-get update \
+    && apt-get install --yes git libxslt-dev libzip-dev libonig-dev unzip \
+    && apt-get clean ; rm -rf /var/lib/apt/lists/*
+
+RUN pecl install apcu
+
+# configure intl and xsl in 2 steps, otherwise it fails
+RUN docker-php-ext-configure intl \
+    && docker-php-ext-configure xsl \
+    && docker-php-ext-install intl mbstring xsl zip \
+    && docker-php-ext-enable apcu
+
+# ensure that git is available
+RUN git --version
+
+COPY --from=composer:2 /usr/bin/composer /usr/local/bin/composer
+
+WORKDIR /symfony

composer.json

@@ -191,6 +191,18 @@
             "src/Symfony/Component/VarDumper/Resources/functions/dump.php"
         ]
     },
+    "scripts": {
+        "docker-build": "docker build --build-arg DOCKER_PHP_VERSION=${DOCKER_PHP_VERSION} --tag symfony-tests .docker/",
+        "docker-run": "docker run --rm --tty --user $(id --user):$(id --group) --volume $(pwd):/symfony symfony-tests",
+        "docker-composer": "@docker-run env COMPOSER_ROOT_VERSION=6.3.x-dev composer update",
+        "docker-tests": "@docker-run ./phpunit"
+    },
+    "scripts-descriptions": {
+        "docker-build": "Build the Docker image, you can use a different version by defining “DOCKER_PHP_VERSION”, e.g. “env DOCKER_PHP_VERSION=\"8.1\" composer docker-build”",
+        "docker-run": "Base command to run Docker",
+        "docker-composer": "Install dependencies through Composer",
+        "docker-tests": "Run tests, you should pass arguments, e.g. “composer docker-tests src/Symfony/Component/DependencyInjection/” for testing a specific folder or “composer docker-tests src/Symfony/” to run the whole test suite in parallel. Options for PHPUnit must be prepend with --, e.g. “composer docker-tests -- --verbose --debug src/Symfony/Component/DependencyInjection/”"
+    },
     "repositories": [
         {
             "type": "path",