Laravel Sail after cloning from Git repository

# Mastering Deployment: Pulling Laravel Sail Applications from Git Repositories As a senior developer working with containerized applications, you often encounter the challenge of moving a project between environments or systems. Specifically, when dealing with frameworks like Laravel and Docker setups using Sail, managing dependencies—especially those generated by Composer—becomes a crucial step. If you've cloned a repository and are trying to set it up on a new machine, the issue of missing `vendor` files is a very common sticking point. This post will walk you through the correct, idiomatic way to handle Laravel Sail projects when cloning from Git, demystifying how Docker manages dependencies and providing a robust workflow for migration. ## The Docker Philosophy: Why Vendor Files Don't Belong in Git The first step to solving this problem is understanding *why* you don't commit your `vendor` directory to Git. In a well-architected Dockerized application, the build process should be deterministic and reproducible. When you use Laravel Sail (or standard Docker setups), the dependencies are installed *inside* the Docker container during the image build phase, typically via running `composer install`. These files are generated based on the contents of your `composer.lock` file. If you commit the `vendor` directory to Git: 1. **Bloat:** You increase the repository size unnecessarily. 2. **Non-Portability:** The vendor files might be specific to the host operating system or PHP version used during the initial build, making them incompatible with a new environment. 3. **Redundancy:** The dependencies should be installed from scratch on the target machine, ensuring that the environment precisely matches what the repository defines. Therefore, the convention is: **Git stores the source code and configuration; Docker/Composer handles the runtime dependencies.** ## The Recommended Workflow for Cloning and Migration Instead of trying to manually transfer vendor files, the most reliable method involves letting the new environment rebuild everything from the source definitions. This approach aligns perfectly with best practices promoted by Laravel, such as ensuring environments are consistently managed. Here is the step-by-step process for migrating your Sail application: ### Step 1: Clone and Prepare the Repository First, clone your repository to your new system (e.g., your WSL2 setup): ```bash git clone https://github.com/youruser/your-laravel-app.git cd your-laravel-app ``` ### Step 2: Install Dependencies via Docker Compose Since Sail defines the entire environment, you simply need to instruct Docker Compose to build and run the necessary services. This process forces Composer to execute exactly as defined within the `Dockerfile` or the Sail configuration. Run the following command from your project root: ```bash ./vendor/bin/sail up -d --build ``` The `--build` flag is critical here, as it ensures that Docker rebuilds the necessary images based on the project's definitions, which includes running the `composer install` steps defined in the Sail setup. This effectively pulls down all required dependencies inside the isolated container environment. ### Step 3: Handling Local Development (Optional) If you need to work with the code locally *outside* of the Docker context for specific tasks (like local artisan commands), you can use Docker volume mounts or execute commands within an interactive container session. For example, opening a shell inside the running Sail container is often the easiest way to interact with the application environment: ```bash ./vendor/bin/sail shell ``` ## Conclusion: Embracing Container Consistency Moving a Laravel Sail project from one environment to another should prioritize consistency over file copying. By relying on Git for source code and using Docker Compose—which contains the necessary instructions to run `composer install` correctly within the container context—you eliminate the headache of manually managing vendor files. This method ensures that whether you are working on Windows, Linux, or any other environment, your application runs exactly as intended, maintaining the robust, portable architecture that Laravel advocates for. Always prioritize reproducible builds; this is a core principle of modern development, and it's something we embrace at https://laravelcompany.com.