How to use Deployer to manage and deploy code in PHP projects

How to use Deployer to manage and deploy code in PHP projects

In modern software development, continuous integration and automated deployment have become essential links. Deployer is a powerful PHP deployment tool that helps us manage and deploy our code quickly and easily.

This article will introduce how to use Deployer to manage and deploy code in PHP projects, and attach corresponding code examples.

First, we need to introduce Deployer into the project. Deployer can be installed through composer:

composer require deployer/deployer --dev

After the installation is completed, we can create a deploy.php file in the root directory of the project for writing our deployment script.

use DotenvDotenv;

require 'recipe/common.php';

// 读取环境配置文件
$dotenv = Dotenv::createImmutable(__DIR__);
$dotenv->load();

// 服务器连接设置
server('production', 'your_server_ip', 22)
    ->user('username')
    ->identityFile('~/.ssh/id_rsa')
    ->stage('production')
    ->env('deploy_path', '/var/www/html');

// 项目配置
set('repository', 'git@github.com:your_username/your_repository.git');
set('branch', 'master');
set('default_stage', 'production');
set('keep_releases', 5);

// 任务：更新代码
task('deploy:update_code', function () {
    run("git fetch origin {{branch}}");
    run("git reset --hard origin/{{branch}}");
})->desc('Update code');

// 后置钩子：安装依赖
after('deploy:update_code', 'composer:install');

// 任务：构建前端资源
task('deploy:build_assets', function () {
    run('cd {{release_path}} && yarn install');
    run('cd {{release_path}} && yarn build');
})->desc('Build assets');

// 部署流程
task('deploy', [
    'deploy:prepare',
    'deploy:lock',
    'deploy:release',
    'deploy:update_code',
    'deploy:shared',
    'deploy:vendors',
    'deploy:writable',
    'deploy:symlink',
    'deploy:unlock',
    'cleanup',
])->desc('Deploy your project');

// 配置选项
/*...*/

// 运行Deployer
namespaceDeployer::run();

The above code shows the basic structure of a simple Deployer deployment script. Among them, we need to configure server connection, project warehouse, tasks and other information according to our actual situation.

In the above code, we used recipe/common.php, which is the default configuration file of Deployer and defines some common tasks. We can customize tasks and hooks according to project needs to meet specific needs.

In the above example, we defined two tasks:

1. deploy:update_code: used to update the code, which is pulled from the remote repository through Git commands Get the latest code.
2. deploy:build_assets: Used to build front-end resources. It installs dependencies and builds front-end resources by running the yarn install and yarn build commands. .

In addition to tasks, we can also define some other hooks, such as before, after, etc., to perform some additional tasks before and after task execution. operate. In the above example, we defined a post hook after('deploy:update_code', 'composer:install'), which will automatically run composer install after updating the code. Install project dependencies.

After the configuration is completed, we can run Deployer through the following command:

dep deploy production

Where, production is the server connection name we defined. After running, Deployer will automatically execute our predefined tasks and hooks to complete the deployment of the code.

To sum up, Deployer is a powerful, easy-to-use PHP deployment tool that can help us achieve rapid deployment and automated management of code. By using Deployer, we can greatly improve the efficiency and quality of software development.

I hope this article will help you understand and use Deployer. I also hope that you can give full play to the advantages of Deployer and obtain better development experience and effects.

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