README

Introduction

Inject chaos into your Laravel application with ease!

Laravel Bazooka is a powerful Laravel package that allows you to inject controlled chaos into your application. Whether you're testing resilience, simulating failures, or just having fun, Bazooka provides a simple and configurable way to disrupt your application's behavior.

Features

• Inject Chaos Points: Add Bazooka::chaos() calls to your controller methods with a configurable probability.
• Disruption Strategies: Choose from built-in strategies like latency delays or exception throwing.
• Command-Line Tools:
  • Inject chaos points into controllers.
  • List all chaos points in your application.
  • Remove chaos points from your codebase.
• Dry Run Mode: Safely test the removal of chaos points without modifying files.
• Configurable Probability: Control the likelihood of chaos being injected or triggered.

Installation

You can install the package via Composer:

composer require laraveljutsu/bazooka

Laravel will automatically register the service provider.

If needed, add to config/app.php providers array:

'providers' => [
    // ...
    LaravelJutsu\Bazooka\BazookaServiceProvider::class,
],

Configuration

After publishing the configuration file, you can customize the behavior of Bazooka by editing config/bazooka.php:

To publish the configuration file, run the following command:

php artisan vendor:publish --provider="LaravelJutsu\Bazooka\BazookaServiceProvider" --tag="config"

return [
    'enabled' => env('BAZOOKA_ENABLED', true), // Enable or disable Bazooka globally
    'probability' => 0.2, // Probability of chaos being injected or triggered (0 to 1)
    'strategies' => [
        'latency' => [
            'min_delay' => 100, // Minimum delay in milliseconds
            'max_delay' => 500, // Maximum delay in milliseconds
        ],
        'exception' => [
            'exceptions' => [
                \RuntimeException::class => 'Something went wrong!', // Exception class and message
            ],
        ],
    ],
];

Usage

Inject Chaos Points

Inject chaos points into your controller methods:

php artisan bazooka:inject

You can target specific controllers:

php artisan bazooka:inject --controller=TestController

List Chaos Points

List all chaos points in your application:

php artisan bazooka:list

Example output:

+-----------------------------------+------+--------+
| File                              | Line | Method |
+-----------------------------------+------+--------+
| Http/Controllers/TestController.php | 10   | index  |
+-----------------------------------+------+--------+

Remove Chaos Points

Remove all chaos points from your codebase:

php artisan bazooka:remove

Use the --dry-run option to preview changes without modifying files:

php artisan bazooka:remove --dry-run

Disruption Strategies

Bazooka comes with built-in disruption strategies. You can configure them in config/bazooka.php.

Latency Disruption

Add a delay to your application.

Exception Disruption

Throw a prepared exception.

Example

Controller Before Injection

namespace App\Http\Controllers;

class TestController
{
    public function index()
    {
        return 'Hello World';
    }
}

Controller After Injection

namespace App\Http\Controllers;

class TestController
{
    public function index()
    {
        \LaravelJutsu\Bazooka\Facades\Bazooka::chaos(); // Chaos point injected here
        return 'Hello World';
    }
}

Testing

Run the test suite to ensure everything works as expected:

composer test

Contributing

Contributions are welcome! Please open an issue or submit a pull request.

License

This package is open-source software licensed under the MIT License.

Credits

• Developed by ludo 🐆
• Inspired by the need for chaos engineering in Laravel applications.

Enjoy injecting chaos into your Laravel applications with Laravel Bazooka! 🎉