Composer

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About

Composer is a dependency manager for PHP, widely used to manage libraries and packages in PHP projects. Composer is responsible for managing libraries on a per-project basis. It can be installed directly in the project’s directory, or it can be installed globally and accessed from anywhere in the system. It allows you to declare the libraries on which the code depends.

Key Features:

  • Dependency Management: Automatically handles library dependencies, ensuring that the correct versions are installed.
  • Package Repositories: Works with Packagist, the default package repository for PHP, but can also use private repositories.
  • Autoloading: Generates an autoloader for PHP classes, simplifying the inclusion of class files in projects.
  • Configuration: Uses a composer.json file to define project dependencies and configuration settings.
  • Dependency Management: Automates the process of managing libraries and packages in PHP projects, reducing manual effort.
  • Version Control: Ensures that the correct versions of dependencies are used, preventing conflicts and errors.
  • Autoloading: Automatically generates an autoload file, making it easy to include classes in projects without manual includes.
  • Packagist: Integrates with Packagist, the main repository for PHP packages, giving access to thousands of libraries.
  • Simple Configuration: Uses a straightforward json file for defining project dependencies and settings.
  • Command-Line Interface: Offers easy-to-use command-line commands for installing, updating, and managing packages.

Common Commands:

  • composer install: Installs dependencies listed in composer.json.
  • composer update: Updates dependencies to the latest versions allowed by composer.json.
  • composer require: Adds a new package as a dependency.

You can subscribe to Composer 2.8.1, an AWS Marketplace product and launch an instance from the product’s AMI using the Amazon EC2 launch wizard.

To launch an instance from the AWS Marketplace using the launch wizard

  • Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/
  • From the Amazon EC2 dashboard, choose Launch Instance. On the Choose an Amazon Machine Image (AMI) page, choose the AWS Marketplace category on the left. Find a suitable AMI by browsing the categories, or using the search functionality. Choose Select to choose your product.
  • A dialog displays an overview of the product you’ve selected. You can view the pricing information, as well as any other information that the vendor has provided. When you’re ready, choose Continue.
  • On the Choose an Instance Type page, select the hardware configuration and size of the instance to launch. When you’re done, choose Next: Configure Instance Details.
  • On the next pages of the wizard, you can configure your instance, add storage, and add tags. For more information about the different options you can configure, see Launching an Instance. Choose Next until you reach the Configure Security Group page.
  • The wizard creates a new security group according to the vendor’s specifications for the product. The security group may include rules that allow all IP addresses (0.0.0.0/0) access on SSH (port 22) on Linux or RDP (port 3389) on Windows. We recommend that you adjust these rules to allow only a specific address or range of addresses to access your instance over those ports
  • When you are ready, choose Review and Launch.
  • On the Review Instance Launch page, check the details of the AMI from which you’re about to launch the instance, as well as the other configuration details you set up in the wizard. When you’re ready, choose Launch to select or create a key pair, and launch your instance.
  • Depending on the product you’ve subscribed to, the instance may take a few minutes or more to launch. You are first subscribed to the product before your instance can launch. If there are any problems with your credit card details, you will be asked to update your account details. When the launch confirmation page displays.

Usage/Deployment Instructions

Step 1: SSH into Your Instance: Use the SSH command with the username ubuntu and the appropriate key pair to start the applications.

Username: ubuntu

ssh -i path/to/ssh_key.pem ubuntu@instance-IP

Replace path/to/ssh_key.pem with the path to your SSH key file and instance-IP with the public IP address of your instance.

Step 2: At Your terminal, hit command to see the application is successfully installed in your system.

composer -v

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    Amazon EC2 enables “compute” in the cloud. Amazon EC2’s simple web service interface allows you to obtain and configure capacity with minimal friction. It provides you with complete control of your computing resources and lets you run on Amazon’s proven computing environment. Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change. Amazon EC2 changes the economics of computing by allowing you to pay only for capacity that you actually use.

    Amazon EC2 allows you to set up and configure everything about your instances from your operating system up to your applications. An Amazon Machine Image (AMI) is simply a packaged-up environment that includes all the necessary bits to set up and boot your instance. Your AMIs are your unit of deployment. You might have just one AMI or you might compose your system out of several building block AMIs (e.g., webservers, appservers, and databases). Amazon EC2 provides a number of tools to make creating an AMI easy. Once you create a custom AMI, you will need to bundle it. If you are bundling an image with a root device backed by Amazon EBS, you can simply use the bundle command in the AWS Management Console. If you are bundling an image with a boot partition on the instance store, then you will need to use the AMI Tools to upload it to Amazon S3. Amazon EC2 uses Amazon EBS and Amazon S3 to provide reliable, scalable storage of your AMIs so that we can boot them when you ask us to do so.

    Or, if you want, you don’t have to set up your own AMI from scratch. You can choose from a number of globally available AMIs that provide useful instances. For example, if you just want a simple Linux server, you can choose one of the standard Linux distribution AMIs.

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    Highlights

    • icon

      Simplifies the management of PHP libraries.

    • icon

      Promotes best practices by ensuring proper version control and autoloading.

    • icon

      Automates the process of managing libraries and packages in PHP projects, reducing manual effort.

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      Automatically handles library dependencies, ensuring that the correct versions are installed.

    Application Installed

    • icon Composer 2.8.1