[1.x] add docker (#450)

Author: imdhemy

CONTRIBUTING.md

@@ -44,11 +44,20 @@ an issue or pull request.
 - Submit a pull request immediately even before completing your code but, add the `[WIP]` tag to the title.
 - If you want to contribute, but don't know where to start? check the project board and grab your next task.
 
+### Development environment
+You can build the docker image using the following command:
+
+```bash
+docker build -t imdhemy/liap .
+```
+
+Then you can configure PHPStorm to use the docker image as a remote interpreter.
+
 ### Requirements
 
 Requirements related to code the code contribution listed below:
 
-- `PSR-12 `coding standard. Use `composer format` to apply conventions.
+- `Symfony `coding standard. Use `composer format` to apply conventions.
 - Add tests! - Your patch won't be accepted if it does not have tests.
 - Document any change in behaviour - Make sure the README.md and any other relevant documentation are kept up-to-date.
 - One pull request per feature - If you want to do more than one thing, send multiple pull requests.

Dockerfile

@@ -0,0 +1,32 @@
+FROM php:8.1-fpm
+
+# Install dependencies
+RUN apt-get update && apt-get install -y \
+    libfreetype6-dev \
+    libjpeg62-turbo-dev \
+    libpng-dev \
+    libzip-dev \
+    zip \
+    unzip \
+    git \
+    curl \
+    && docker-php-ext-configure gd --with-freetype --with-jpeg \
+    && docker-php-ext-install -j$(nproc) gd \
+    && docker-php-ext-install pdo pdo_mysql zip
+
+# Install Xdebug
+RUN pecl install xdebug \
+    && docker-php-ext-enable xdebug
+
+# Install Composer
+COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
+
+# Set working directory
+COPY . /var/www
+WORKDIR /var/www
+
+# Expose port 9003 for Xdebug
+EXPOSE 9003
+
+# Start PHP-FPM server
+CMD ["php-fpm"]