Use Deployer to improve the efficiency and quality of PHP project deployment

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Release: 2023-07-13 17:34:01
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Use Deployer to improve the efficiency and quality of PHP project deployment

Introduction:
In daily development work, project deployment is a very important link. The traditional manual deployment method is not only time-consuming and labor-intensive, but also prone to human errors. In order to improve the efficiency and quality of project deployment, we can use some automation tools to simplify the deployment process. This article will introduce how to use Deployer to implement automated deployment and illustrate it through code examples.

  1. What is Deployer?
    Deployer is an open source tool based on PHP, which can help us simplify and automate the project deployment process. Through Deployer, we can use concise code to define deployment tasks and implement automated deployment on remote servers.
  2. Deployer installation and configuration
    First, we need to install Deployer through Composer. Open the command line tool, enter the project root directory, and then execute the following command:
composer require deployer/deployer --dev
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After the installation is complete, we need to create a deploy.php file in the project root directory, and Configure Deployer in the file. The following is a simple configuration example:

<?php
require 'recipe/common.php';

// 项目名称
set('application', 'my-app');

// 部署服务器
host('production')
    ->hostname('example.com')
    ->user('user')
    ->set('deploy_path', '~/www/{{application}}');

// 项目仓库
set('repository', 'git@github.com:username/repo.git');

// 部署目标分支
set('branch', 'master');

// 其他配置项...
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In the configuration file, we can set the project name, deployment server, warehouse address, deployment target branch and other information. According to the needs of the actual project, the relevant items in the configuration file can be modified as needed.

  1. Define deployment tasks
    After the configuration is completed, we can define the deployment tasks that need to be executed in the deploy.php file. The following is an example:
<?php
// 生成并上传新的代码
task('deploy:update_code', function () {
    $sourcePath = get('config.source_path');
    $releasePath = get('deploy_path') . '/releases/' . date('YmdHis');

    // 从Git仓库下载代码
    run("git clone {{repository}} $releasePath");

    // 其他操作...
});

// 安装依赖并进行其他的项目构建操作
task('deploy:build', function () {
    $releasePath = get('release_path');

    // 安装Composer依赖
    run("cd $releasePath && composer install --no-dev");

    // 其他操作...
});

// 部署任务执行完成后的清理操作
task('deploy:cleanup', function () {
    $releasesPath = get('deploy_path') . '/releases';

    // 保留指定数量的历史版本
    run("ls -dt $releasesPath/* | tail -n +{{keep_releases}} | xargs rm -rf");

    // 其他操作...
});

// 默认任务:依次执行deploy:update_code、deploy:build、deploy:cleanup
task('deploy', [
    'deploy:update_code',
    'deploy:build',
    'deploy:cleanup'
]);

// 创建一个自定义任务
task('custom_task', function () {
    // 自定义操作...
});
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In the above code example, we define three deployment tasks: deploy:update_code is used to download the latest code, deploy:build is used to install dependencies and perform other project build operations, deploy:cleanup is used to clean up historical versions. Finally, we created a default task named deploy through the task function, which contains the three previously defined tasks for subsequent deployment.

  1. Execute deployment
    After we define the deployment task in the deploy.php file, we can execute the deployment through the command line. Switch to the project root directory on the command line, and then execute the following command:
dep deploy
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Deployer will automatically connect to the remote server and execute the deployment process according to the defined task sequence. In addition, Deployer also provides a series of commands, such as dep init for initializing the deployment configuration file, dep run for executing custom tasks on the remote server, etc.

Summary:
Using Deployer can help us simplify and automate the deployment process of PHP projects and improve the efficiency and quality of deployment. Through code examples, we can see that using Deployer in a project can easily define and execute deployment tasks to achieve automated deployment on remote servers. I hope this article can help readers better understand and apply the Deployer tool and improve development efficiency and project quality.

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source:php.cn
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