# Service (Systemd)

RoadRunner Service Plugin provides a simple API to monitor and control processes. It is often used to manage background processes, daemons, or services that need to run continuously. The Service Plugin allows you to start, stop, and manage any number of processes, including PHP scripts, binaries, and bash/powershell scripts.

## Manage services using RoadRunner config

The Service Plugin is configured using a `.rr.yaml`.

Here is an example configuration:

{% code title=".rr.yaml" %}

```yaml
version: "3"

service:
  meilisearch:
    service_name_in_log: true
    timeout_stop_sec: 10
    remain_after_exit: true
    restart_sec: 1
    command: "./bin/meilisearch"
    user: "www-data"
  centrifuge:
    service_name_in_log: true
    timeout_stop_sec: 10
    remain_after_exit: true
    restart_sec: 1
    command: "./bin/centrifugo --config=centrifugo.json"
  some_service_1:
    command: "php loop.php"
    process_num: 10
    timeout_stop_sec: 10
    exec_timeout: 0s
    remain_after_exit: true
    service_name_in_log: false
    env:
      - foo: "BAR"
    restart_sec: 1
```

{% endcode %}

The `service` section is where you define your services, with each service having its own configuration settings.

### Configuration Settings

The following are the available configuration settings for each service:

| Setting                                                                                    | Description                                                                                                                                                                                                                                                                                                                     |
| ------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **command**                                                                                | The command to execute. There are no restrictions on commands. It could be a binary, a PHP file, a script, etc.                                                                                                                                                                                                                 |
| **process\_num**                                                                           | The number of processes for the command to fire. The default value is `1`.                                                                                                                                                                                                                                                      |
| **exec\_timeout**                                                                          | The maximum allowed time to run for the process. The default value is 0s, which means unlimited time. The timeout can be set in the form of `1h`, `1m`, or `1s` (h,m,s).                                                                                                                                                        |
| **timeout\_stop\_sec**                                                                     | The maximum allowed time to wait for the process to stop.                                                                                                                                                                                                                                                                       |
| **remain\_after\_exit**                                                                    | If set to `true`, the process will remain after exit. For example, if you need to restart the process every 10 seconds, exec\_timeout should be set to `10s`, and `remain_after_exit` should be set to `true`. Note that if you kill the process from outside and `remain_after_exit` is `true`, the process will be restarted. |
| restart\_sec                                                                               | The delay between process stop and restart. The default value is 30 seconds.                                                                                                                                                                                                                                                    |
| service\_name\_in\_log                                                                     | If set to `true`, the service name will be shown in the log in the form `%plugin%.%service_name%`. The default value is `false`.                                                                                                                                                                                                |
| env                                                                                        | Environment variables to pass to the underlying process from the config.                                                                                                                                                                                                                                                        |
| user                                                                                       | Username (not UID) for the Service process. An empty value means to use the RR process user.                                                                                                                                                                                                                                    |
| Services will be started when RoadRunner starts and will be stopped when RoadRunner stops. |                                                                                                                                                                                                                                                                                                                                 |

## PHP client

The RoadRunner Service Plugin PHP Client Library allows you to manage processes in PHP application using the Service Plugin. You can use the library to create, start, stop, restart, and manage any number of services.

### Installation

You can install the package via composer:

```bash
composer require spiral/roadrunner-services
```

### Usage

To use the library, you need to create an instance of `Spiral\RoadRunner\Services\Manager`:

{% code title="app.php" %}

```php
use Spiral\RoadRunner\Services\Manager;
use Spiral\Goridge\RPC\RPC;

require __DIR__ . '/vendor/autoload.php';

$manager = new Manager(RPC::create('tcp://127.0.0.1:6001'));
```

{% endcode %}

### Create a service

To create a new service, use the `create` method:

{% code title="app.php" %}

```php
use Spiral\RoadRunner\Services\Exception\ServiceException;

try {
    $result = $manager->create(
        name: 'listen-jobs', 
        command: 'php app.php queue:listen',
        processNum: 3,
        execTimeout: 0,
        remainAfterExit: false,
        env: ['APP_ENV' => 'production'],
        restartSec: 30
    );
    
    if (!$result) {
        throw new ServiceException('Service creation failed.');
    }
} catch (ServiceException $e) {
    // handle exception
}
```

{% endcode %}

#### Checking Service Status

To check the status of a service, use the `statuses` method:

{% code title="app.php" %}

```php
use Spiral\RoadRunner\Services\Exception\ServiceException;

try {
    $status = $manager->statuses(name: 'listen-jobs');
    
    // Will return an array with statuses of every run process
} catch (ServiceException $e) {
    // handle exception
}
```

{% endcode %}

#### Restarting a Service

To restart a service, use the `restart` method:

{% code title="app.php" %}

```php
use Spiral\RoadRunner\Services\Exception\ServiceException;

try {
    $result = $manager->restart(name: 'listen-jobs');
    
    if (!$result) {
        throw new ServiceException('Service restart failed.');
    }
} catch (ServiceException $e) {
    // handle exception
}
```

{% endcode %}

#### Terminating a Service

To terminate a service, use the `terminate` method:

{% code title="app.php" %}

```php
use Spiral\RoadRunner\Services\Exception\ServiceException;

try {
    $result = $manager->terminate(name: 'listen-jobs');
    
    if (!$result) {
        throw new ServiceException('Service termination failed.');
    }
} catch (ServiceException $e) {
    // handle exception
}
```

{% endcode %}

{% hint style="info" %}
When you're terminating the service, RR sends the `SIGINT` signal to the underlying process(ses).
{% endhint %}

#### Listing All Services

To get a list of all services, use the `list` method:

{% code title="app.php" %}

```php
use Spiral\RoadRunner\Services\Exception\ServiceException;

try {
    $services = $manager->list();
    
    // Will return an array with services names
    // ['listen-jobs', 'websocket-connection'] 
} catch (ServiceException $e) {
    // handle exception
}
```

{% endcode %}

## API

### Protobuf API

To make it easy to use the Service proto API in PHP, we provide a [GitHub repository](https://github.com/roadrunner-php/roadrunner-api-dto), that contains all the generated PHP DTO classes proto files, making it easy to work with these files in your PHP application.

* [API](https://github.com/roadrunner-server/api/blob/master/proto/service/v1/service.proto)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.roadrunner.dev/docs/plugins/service.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
