SSH(Secure Shell)

• 配置
• 基本用法
• 任务
• SFTP上传
• 显示远程日志的末尾几行

配置

Laravel 为 SSH 登录远程服务器并运行命令提供了一种简单的方式，允许你轻松创建运行在远程服务器上的 Artisan 任务。SSH 门面类(facade)提供了连接远程服务器和运行命令的访问入口。

配置文件位于 app/config/remote.php，该文件包含了配置远程连接所需的所有选项。connections 数组包含了一个以名称作为键的服务器列表。只需将 connections 数组中的凭证信息填好，就可以开始运行远程任务了。注意 SSH 可以使用密码或 SSH 密钥进行身份验证。

基本用法

在默认服务器上运行命令

使用 SSH::run 方法在 default 远程服务器连接上运行命令：

SSH::run(array(
    'cd /var/www',
    'git pull origin master',
));

在指定连接上运行命令

或者，你可以使用 into 方法在指定的服务器连接上运行命令：

SSH::into('staging')->run(array(
    'cd /var/www',
    'git pull origin master',
));

捕获命令输出结果

你可以通过向 run 方法传递一个闭包来捕获远程命令的“实时”输出结果：

SSH::run($commands, function($line)
{
    echo $line.PHP_EOL;
});

任务

如果需要定义一组经常放在一起运行的命令，你可以使用 define 方法来定义一个任务( task )：

SSH::into('staging')->define('deploy', array(
    'cd /var/www',
    'git pull origin master',
    'php artisan migrate',
));

任务一旦创建，就可以使用 task 来执行：

SSH::into('staging')->task('deploy', function($line)
{
    echo $line.PHP_EOL;
});

SFTP 上传

SSH 类的 put 和 putString 方法提供了一种简单的上传方式，用于将文件或字符串上传到服务器：

SSH::into('staging')->put($localFile, $remotePath);

SSH::into('staging')->putString('Foo', $remotePath);

显示远程日志的末尾几行

Laravel 提供了一个有用的命令用来查看任何远程连接服务器上的 laravel.log 文件的末尾几行内容。只需使用 Artisan 命令 tail 并指定你想要查看日志的远程连接的名称即可：

php artisan tail staging

php artisan tail staging --path=/path/to/log.file

Envoy Task Runner

• Installation
• Running Tasks
• Multiple Servers
• Parallel Execution
• Task Macros
• Notifications
• Updating Envoy

Laravel Envoy provides a clean, minimal syntax for defining common tasks you run on your remote servers. Using a Blade style syntax, you can easily setup tasks for deployment, Artisan commands, and more.

Note: Envoy requires PHP version 5.4 or greater, and only runs on Mac / Linux operating systems.

Installation

First, install Envoy using the Composer global command:

composer global require "laravel/envoy=~1.0"

Make sure to place the ~/.composer/vendor/bin directory in your PATH so the envoy executable is found when you run the envoy command in your terminal.

Next, create an Envoy.blade.php file in the root of your project. Here's an example to get you started:

@servers(['web' => '192.168.1.1'])

@task('foo', ['on' => 'web'])
    ls -la
@endtask

As you can see, an array of @servers is defined at the top of the file. You can reference these servers in the on option of your task declarations. Within your @task declarations you should place the Bash code that will be run on your server when the task is executed.

The init command may be used to easily create a stub Envoy file:

envoy init user@192.168.1.1

Running Tasks

To run a task, use the run command of your Envoy installation:

envoy run foo

If needed, you may pass variables into the Envoy file using command line switches:

envoy run deploy --branch=master

You may use the options via the Blade syntax you are used to:

@servers(['web' => '192.168.1.1'])

@task('deploy', ['on' => 'web'])
    cd site
    git pull origin {{ $branch }}
    php artisan migrate
@endtask

Bootstrapping

You may use the @setup directive to declare variables and do general PHP work inside the Envoy file:

@setup
    $now = new DateTime();

    $environment = isset($env) ? $env : "testing";
@endsetup

You may also use @include to include any PHP files:

@include('vendor/autoload.php');

Multiple Servers

You may easily run a task across multiple servers. Simply list the servers in the task declaration:

@servers(['web-1' => '192.168.1.1', 'web-2' => '192.168.1.2'])

@task('deploy', ['on' => ['web-1', 'web-2']])
    cd site
    git pull origin {{ $branch }}
    php artisan migrate
@endtask

By default, the task will be executed on each server serially. Meaning, the task will finish running on the first server before proceeding to execute on the next server.

Parallel Execution

If you would like to run a task across multiple servers in parallel, simply add the parallel option to your task declaration:

@servers(['web-1' => '192.168.1.1', 'web-2' => '192.168.1.2'])

@task('deploy', ['on' => ['web-1', 'web-2'], 'parallel' => true])
    cd site
    git pull origin {{ $branch }}
    php artisan migrate
@endtask

Task Macros

Macros allow you to define a set of tasks to be run in sequence using a single command. For instance:

@servers(['web' => '192.168.1.1'])

@macro('deploy')
    foo
    bar
@endmacro

@task('foo')
    echo "HELLO"
@endtask

@task('bar')
    echo "WORLD"
@endtask

The deploy macro can now be run via a single, simple command:

envoy run deploy

Notifications

HipChat

After running a task, you may send a notification to your team's HipChat room using the simple @hipchat directive:

@servers(['web' => '192.168.1.1'])

@task('foo', ['on' => 'web'])
    ls -la
@endtask

@after
    @hipchat('token', 'room', 'Envoy')
@endafter

You can also specify a custom message to the hipchat room. Any variables declared in @setup or included with @include will be available for use in the message:

@after
    @hipchat('token', 'room', 'Envoy', "$task ran on [$environment]")
@endafter

This is an amazingly simple way to keep your team notified of the tasks being run on the server.

Slack

The following syntax may be used to send a notification to Slack:

@after
    @slack('team', 'token', 'channel')
@endafter

Updating Envoy

To update Envoy, simply run the self-update command:

envoy self-update

If your Envoy installation is in /usr/local/bin, you may need to use sudo:

sudo envoy self-update