Use Deployer to simplify the configuration and deployment process of PHP projects

Use Deployer to simplify the configuration and deployment process of PHP projects

Introduction:
When developing web applications, configuration and deployment are an inevitable part. To facilitate and simplify this process, there are many tools available. This article will introduce Deployer, an open source PHP project automation deployment tool, which can help us easily configure and deploy our projects.

What is Deployer?
Deployer is a PHP tool for automated deployment of web applications. It is based on the task runner Robo and provides a set of simple and easy-to-use command line tools to help us define and execute different deployment tasks. Deployer supports most PHP projects, whether based on frameworks (such as Laravel, Symfony) or custom projects. It can automatically complete a series of tasks, such as code upload, environment configuration, database migration, compressed file backup, etc.

Installing and configuring Deployer:
First, we need to install Deployer into our project using Composer. Run the following command in the project root directory:

composer require deployer/deployer --dev

Next, create a deploy.php file in the project root directory as the Deployer configuration file. In this file we can define our deployment tasks. The following is a simple example:

<?php

require 'recipe/common.php';

// 配置服务器连接
server('production', 'your-server-ip')
    ->user('your-username')
    ->identityFile('~/.ssh/id_rsa')
    ->set('deploy_path', '/var/www/html');

// 设置项目仓库和分支
set('repository', 'git@github.com:your-username/your-repo.git');
set('branch', 'master');

// 配置需要上传的文件和文件夹
add('shared_files', []);
add('shared_dirs', []);

// 定义需要运行的任务
task('deploy', [
    'deploy:prepare',
    'deploy:lock',
    'deploy:release',
    'deploy:update_code',
    'deploy:shared',
    'deploy:writable',
    'deploy:vendors',
    'deploy:clear_paths',
    'deploy:symlink',
    'deploy:unlock',
    'cleanup',
    'success'
]);

// 执行部署任务
after('deploy', 'success');

In the above example, we first configured the server's connection information through the server() method, including server IP, user name and authentication file. Then, we set up the project's repository and branches. Next, we added the files and folders that needed to be shared. Finally, we define the deployment task, and finally specify the additional tasks that need to be performed after the task is completed through the after() method.

Deploy the project:
Once we have completed the configuration of the Deployer, we can use the following command to deploy our project:

dep deploy

This command will be as defined in the deploy.php file Tasks are executed sequentially, automatically completing a series of steps such as configuration, uploading code, updating dependencies, and migrating databases. During the deployment process, we can view the output in real time on the command line so we can understand the progress of the deployment and any errors.

Other functions:
Deployer also provides many other useful functions, such as rollback deployment, parallel deployment, optional tasks, automatic backup, etc. We can further extend and customize these functions in the deploy.php file according to the needs of the project.

Summary:
Deployer is a simple, easy-to-use and powerful automated deployment tool that can greatly simplify the configuration and deployment process of PHP projects. Through good documentation and active community support, we can easily use Deployer to deploy our projects and enjoy the many conveniences it brings. If you haven't tried Deployer yet, start now!

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