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# How to Deploy a Symfony Application

```php
require 'recipe/symfony.php';
```

[Source](/recipe/symfony.php)

Deployer is a free and open source deployment tool written in PHP. 
It helps you to deploy your Symfony application to a server. 
It is very easy to use and has a lot of features. 

Three main features of Deployer are:
- **Provisioning** - provision your server for you.
- **Zero downtime deployment** - deploy your application without a downtime.
- **Rollbacks** - rollback your application to a previous version, if something goes wrong.

Additionally, Deployer has a lot of other features, like:
- **Easy to use** - Deployer is very easy to use. It has a simple and intuitive syntax.
- **Fast** - Deployer is very fast. It uses parallel connections to deploy your application.
- **Secure** - Deployer uses SSH to connect to your server.
- **Supports all major PHP frameworks** - Deployer supports all major PHP frameworks.

You can read more about Deployer in [Getting Started](/docs/getting-started.md).

The [deploy](#deploy) task of **Symfony** consists of:
* [deploy:prepare](/docs/recipe/common.md#deployprepare) – Prepares a new release
  * [deploy:info](/docs/recipe/deploy/info.md#deployinfo) – Displays info about deployment
  * [deploy:setup](/docs/recipe/deploy/setup.md#deploysetup) – Prepares host for deploy
  * [deploy:lock](/docs/recipe/deploy/lock.md#deploylock) – Locks deploy
  * [deploy:release](/docs/recipe/deploy/release.md#deployrelease) – Prepares release
  * [deploy:update_code](/docs/recipe/deploy/update_code.md#deployupdate_code) – Updates code
  * [deploy:shared](/docs/recipe/deploy/shared.md#deployshared) – Creates symlinks for shared files and dirs
  * [deploy:writable](/docs/recipe/deploy/writable.md#deploywritable) – Makes writable dirs
* [deploy:vendors](/docs/recipe/deploy/vendors.md#deployvendors) – Installs vendors
* [deploy:cache:clear](/docs/recipe/symfony.md#deploycacheclear) – Clears cache
* [deploy:publish](/docs/recipe/common.md#deploypublish) – Publishes the release
  * [deploy:symlink](/docs/recipe/deploy/symlink.md#deploysymlink) – Creates symlink to release
  * [deploy:unlock](/docs/recipe/deploy/lock.md#deployunlock) – Unlocks deploy
  * [deploy:cleanup](/docs/recipe/deploy/cleanup.md#deploycleanup) – Cleanup old releases
  * [deploy:success](/docs/recipe/common.md#deploysuccess) – 


The symfony recipe is based on the [common](/docs/recipe/common.md) recipe.

## Configuration
### symfony_version
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L8)


```php title="Default value"
$result = run('{{bin/console}} --version');
preg_match_all('/(\d+\.?)+/', $result, $matches);
return $matches[0][0] ?? 5.0;
```


### shared_dirs
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L14)

Overrides [shared_dirs](/docs/recipe/deploy/shared.md#shared_dirs) from `recipe/deploy/shared.php`.


```php title="Default value"
[
    'var/log',
]
```


### shared_files
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L18)

Overrides [shared_files](/docs/recipe/deploy/shared.md#shared_files) from `recipe/deploy/shared.php`.


```php title="Default value"
[
    '.env.local'
]
```


### writable_dirs
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L22)

Overrides [writable_dirs](/docs/recipe/deploy/writable.md#writable_dirs) from `recipe/deploy/writable.php`.


```php title="Default value"
[
    'var',
    'var/cache', 
    'var/log', 
    'var/sessions',
]
```


### log_files
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L29)


```php title="Default value"
'var/log/*.log'
```


### migrations_config
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L31)


### doctrine_schema_validate_config
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L33)


### bin/console
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L35)


```php title="Default value"
'{{bin/php}} {{release_or_current_path}}/bin/console'
```


### console_options
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L37)


```php title="Default value"
return '--no-interaction';
```


## Tasks

### database:migrate
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L42)

Migrates database.


### doctrine:schema:validate
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L52)

Validate the Doctrine mapping files.


### deploy:cache:clear
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L57)

Clears cache.


### deploy
[Source](https://github.com/deployphp/deployer/blob/master/recipe/symfony.php#L66)

Deploys project.


This task is group task which contains next tasks:
* [deploy:prepare](/docs/recipe/common.md#deployprepare)
* [deploy:vendors](/docs/recipe/deploy/vendors.md#deployvendors)
* [deploy:cache:clear](/docs/recipe/symfony.md#deploycacheclear)
* [deploy:publish](/docs/recipe/common.md#deploypublish)