Upgrade to use Drupal 9.1

1. Added a new folder which will serve the purpose of doing D9 readiness development leaving the regular docker machines as it is.
2. Added composer.json similar to goalgorilla/drupal_social#362
3. Extends image from Drupal 9.1
4. Changed the way composer install command runs.

d9/Dockerfile

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+FROM drupal:9.1
+MAINTAINER [email protected]
+
+# Specify the work directory.
+WORKDIR /var/www/
+
+# Install packages.
+RUN apt-get update && apt-get install -y \
+  zlib1g-dev \
+  mariadb-client \
+  git \
+  msmtp \
+  libzip-dev \
+  nano \
+  vim && \
+  apt-get clean
+
+ADD mailcatcher-msmtp.conf /etc/msmtprc
+
+RUN echo 'sendmail_path = "/usr/bin/msmtp -t"' > /usr/local/etc/php/conf.d/mail.ini
+
+ADD php.ini /usr/local/etc/php/php.ini
+
+# Install extensions
+RUN docker-php-ext-install zip bcmath exif
+
+# Install Composer.
+RUN curl -sS https://getcomposer.org/installer | php
+RUN mv composer.phar /usr/local/bin/composer
+
+# Install Open Social via composer.
+RUN rm -f /var/www/composer.lock
+RUN rm -rf /root/.composer
+
+ADD composer.json /var/www/composer.json
+WORKDIR /var/www/
+ENV COMPOSER_ALLOW_SUPERUSER=1
+RUN COMPOSER_MEMORY_LIMIT=-1 composer install
+
+WORKDIR /var/www/html/
+RUN chown -R www-data:www-data *
+
+# Unfortunately, adding the composer vendor dir to the PATH doesn't seem to work. So:
+RUN ln -s /var/www/vendor/bin/drush /usr/local/bin/drush
+
+RUN php -r 'opcache_reset();'
+
+# Fix shell.
+RUN echo "export TERM=xterm" >> ~/.bashrc
+
+# Install composer dependencies.
+RUN composer install --prefer-dist --no-interaction
+
+# Unfortunately, adding the composer vendor dir to the PATH doesn't seem to work. So:
+RUN ln -s /root/.composer/vendor/bin/behat /usr/local/bin/behat
+RUN ln -s /root/.composer/vendor/bin/phpunit /usr/local/bin/phpunit
+RUN ln -s /var/www/vendor/bin/drupal /usr/local/bin/drupal
+
+### CI SPECIFIC - END ###
+
+### DEV SPECIFIC - START ###
+
+ADD php.ini /usr/local/etc/php/php.ini
+
+# GMP library.
+RUN apt-get install -y libgmp-dev
+RUN ln -s /usr/include/x86_64-linux-gnu/gmp.h /usr/local/include/
+RUN docker-php-ext-configure gmp
+RUN docker-php-ext-install gmp
+
+# Xdebug.
+RUN pecl install xdebug-3.1.1 && \
+    docker-php-ext-enable xdebug && \
+    sed -i '1 a xdebug.client_port=9003' /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini && \
+    sed -i '1 a xdebug.mode=debug' /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini && \
+    sed -i '1 a xdebug.start_with_request=yes' /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini && \
+    sed -i '1 a xdebug.discover_client_host=true' /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini && \
+    sed -i '1 a xdebug.idekey=PHPSTORMi' /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini
+
+# Blackfire
+RUN version=$(php -r "echo PHP_MAJOR_VERSION.PHP_MINOR_VERSION;") \
+    && curl -A "Docker" -o /tmp/blackfire-probe.tar.gz -D - -L -s https://blackfire.io/api/v1/releases/probe/php/linux/amd64/$version \
+    && mkdir -p /tmp/blackfire \
+    && tar zxpf /tmp/blackfire-probe.tar.gz -C /tmp/blackfire \
+    && mv /tmp/blackfire/blackfire-*.so $(php -r "echo ini_get('extension_dir');")/blackfire.so \
+    && printf "extension=blackfire.so\nblackfire.agent_socket=tcp://blackfire:8707\n" > $PHP_INI_DIR/conf.d/blackfire.ini \
+    && rm -rf /tmp/blackfire /tmp/blackfire-probe.tar.gz
+
+RUN php -r "opcache_reset();"
+
+# Contains the Mac hack to get the permissions to work for development.
+# Set user 1000 and group staff to www-data, enables write permission.
+# https://github.com/boot2docker/boot2docker/issues/581#issuecomment-114804894
+RUN usermod -u 1000 www-data
+RUN usermod -G staff www-data
+
+### DEV SPECIFIC - END ###
+
+# Redis.
+RUN pecl install redis \
+ && docker-php-ext-enable redis

d9/composer.json

@@ -0,0 +1,138 @@
+{
+    "name": "goalgorilla/social_docker",
+    "description": "Social docker template for composer based Open Social projects.",
+    "type": "project",
+    "license": "GPL-2.0-or-later",
+    "minimum-stability": "dev",
+    "prefer-stable": true,
+    "config": {
+        "optimize-autoloader": true,
+        "update-with-dependencies": true,
+        "sort-packages": true
+    },
+    "require": {
+        "drush/drush": "10.*@stable",
+        "goalgorilla/open_social": "dev-feature/3162491-group-update-d9",
+        "goalgorilla/open_social_scripts": "^2.0",
+        "drupal/redis": "^1.5",
+        "blackfire/php-sdk": "^v1.27.1"
+    },
+    "require-dev": {
+        "dealerdirect/phpcodesniffer-composer-installer": "~0.7.1",
+        "drupal/coder": "8.3.13",
+        "drupal/composer_deploy": "^1.6",
+        "drupal/core-dev": "~9.1.0",
+        "drupal/devel": "^4.1",
+        "drupal/drupal-extension": "^4.1",
+        "drupal/upgrade_status": "^3.11",
+        "jcalderonzumba/gastonjs": "~1.2.0",
+        "jcalderonzumba/mink-phantomjs-driver": "~0.3.3",
+        "mglaman/phpstan-drupal": "^1.0",
+        "mikey179/vfsstream": "^1.6",
+        "palantirnet/drupal-rector": "3248684.x-dev",
+        "phpmd/phpmd": "^2.10",
+        "phpspec/prophecy-phpunit": "^2.0",
+        "phpstan/extension-installer": "^1.1",
+        "phpstan/phpstan-deprecation-rules": "^1.0",
+        "slevomat/coding-standard": "^7.0",
+        "squizlabs/html_codesniffer": "*",
+        "symplify/easy-coding-standard": "^9.4"
+    },
+    "autoload": {
+        "psr-4": {
+            "Drupal\\socialblue\\": "html/profiles/contrib/social/themes/socialblue/src",
+            "Drupal\\socialbase\\": "html/profiles/contrib/social/themes/socialbase/src",
+            "Drupal\\bootstrap\\": "html/themes/contrib/bootstrap/src"
+        }
+    },
+    "repositories": {
+        "0": {
+            "type": "composer",
+            "url": "https://packages.drupal.org/8",
+            "exclude": ["goalgorilla/open_social", "drupal/social"]
+        },
+        "1": {
+            "type": "composer",
+            "url": "https://asset-packagist.org"
+        },
+        "2": {
+            "type": "package",
+            "package": {
+                "name": "squizlabs/html_codesniffer",
+                "version": "2.5.1",
+                "source": {
+                    "url": "https://github.com/squizlabs/HTML_CodeSniffer.git",
+                    "type": "git",
+                    "reference": "master"
+                }
+            }
+        },
+        "3": {
+            "type": "git",
+            "url": "https://github.com/goalgorilla/open_social.git",
+            "only": ["goalgorilla/open_social", "drupal/social"]
+        },
+        "4": {
+            "type": "vcs",
+            "url": "https://github.com/bluehorndigital/drupal-rector.git",
+            "only": ["palantirnet/drupal-rector"]
+        }
+    },
+    "scripts": {
+        "refresh": [
+            "rm -rf composer.lock vendor html/core html/modules/contrib html/profiles/contrib html/themes/contrib",
+            "@composer update -W --ansi"
+        ]
+    },
+    "extra": {
+        "installer-types": [
+            "bower-asset",
+            "npm-asset"
+        ],
+        "installer-paths": {
+            "html/core": [
+                "drupal/core"
+            ],
+            "html/modules/contrib/{$name}": [
+                "type:drupal-module"
+            ],
+            "html/profiles/contrib/social": [
+                "goalgorilla/open_social"
+            ],
+            "html/profiles/contrib/{$name}": [
+                "type:drupal-profile"
+            ],
+            "html/themes/contrib/{$name}": [
+                "type:drupal-theme"
+            ],
+            "html/libraries/{$name}": [
+                "type:drupal-library",
+                "type:bower-asset",
+                "type:npm-asset"
+            ],
+            "scripts/{$name}": [
+                "goalgorilla/open_social_scripts"
+            ],
+            "drush/contrib/{$name}": [
+                "type:drupal-drush"
+            ]
+        },
+        "enable-patching": true,
+        "patchLevel": {
+            "drupal/core": "-p2"
+        },
+        "drupal-scaffold": {
+            "locations": {
+                "web-root": "html/"
+            }
+        },
+        "patches": {
+            "drupal/like_dislike": {
+                "Add support for webprofiler": "patches/like-dislike-fix-webprofiler.patch"
+            },
+            "squizlabs/html_codesniffer": {
+                "Translatings does not work": "patches/DS-5443-accessibility.patch"
+            }
+        }
+    }
+}

d9/mailcatcher-msmtp.conf

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+account mailcatcher
+host mailcatcher
+port 1025
+auto_from on
+account default: mailcatcher

d9/php.ini

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+[PHP]
+; Prod settings -- see ../prod/php.ini
+date.timezone = UTC
+zend.assertions	= 0
+upload_max_filesize = 24M
+post_max_size = 32M
+file_uploads = On
+
+; CI settings - see ../ci/php.ini
+; TODO Change memory_limit to prod value.
+memory_limit = 1024M
+max_execution_time = 0
+
+; Dev settings
+xdebug.max_nesting_level = 500
+opcache.enable = 0