Symfony

Symfony

Overview

This tutorial assumes that your application is based on Symfony >= 3.4 and Symfony Flex. Symfony applications almost work out of the box on Clever Cloud, you just have a few adjustments to make.

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Create an application on Clever Cloud

With the web console

Refer to Quickstart for more details on application creation via the console.

With the Clever Tools CLI

  1. Make sure you have clever-tools installed locally or follow our CLI getting started guide.
  2. In your code folder, do clever create --type <type> <app-name> --region <zone> --org <org> where :
    1. type is the type of technology you rely on
    2. app-name the name you want for your application,
    3. zone deployment zone (par for Paris and mtl for Montreal)
    4. org the organization ID the application will be created under.

Refer to clever create for more details on application creation with Clever Tools.

Setting up environment variables on Clever Cloud

With the Clever Cloud console

  1. Go to the Clever Cloud console, and find the app you want to fine tune under it’s organization.
  2. Find the Environment variables menu and select it.
  3. In this menu, you will see a form with VARIABLE_NAME and variable value fields.
  4. Fill them with the desired values then select Add.
  5. Don’t forget to “Update Changes” at the end of the menu.

With the Clever Tools CLI

  1. Make sure you have clever-tools installed locally. Refer to our CLI getting started.
  2. In your code folder, do clever env set <variable-name> <variable-value>

Refer to environment variables reference for more details on available environment variables on Clever Cloud.

You can of course create custom ones with the interface we just demonstrated, they will be available for your application.

Configure your Symfony application

Configure DocumentRoot

Add a new environment variable called CC_WEBROOT and set /public as its value CC_WEBROOT=/public.

Configure your application secret

APP_SECRET environment variable is required to generate CSRF tokens. By default for symfony/framework-bundle generates one when it’s installed via Symfony Flex. If you do not use Flex, make sure to change your APP_SECRET. The default value is ThisTokenIsNotSoSecretChangeIt, change it.

Configure the Symfony environment

If you’re using .env file in your application, please don’t commit productions credentials in this file or in a .env.production file. They are not meant to be committed alongside your applications. Clever Cloud allows you to inject environment in your app, so you can dynamically link databases and have separate environments with the same code base.

From the console, you can edit the application’s environment variables. Click on “expert mode”, you’ll be able to directly paste the contents of the .env file.

From the CLI, it’s even simpler: clever env import < .env.

You will also need to set the environment variable APP_ENV to one of:

  • dev
  • test
  • prod

You can anyway add your environment with any of the methods mentionned in Setting up environment variables on Clever Cloud.

Configure monolog to get application logs

For your application logs to be collected and available in the console and CLI, you need to configure monolog to use its error_log output. That does not mean that it will only output error level logs, you can set it to use any level, here is an exemple with the info level (and above):

config_prod.yml
monolog:
    handlers:
        filter_for_errors:
            type: fingers_crossed
            action_level: error
            handler: error_log_handler
            excluded_404s:
                 # regex: exclude all 404 errors from the logs
                 - ^/

        error_log_handler:
            type: error_log
            level: info

Configure Symfony to work behind Clever Cloud reverse proxies

You can use the CC_REVERSE_PROXY_IPS environment variable that contains a list of trusted IP addresses, separated by commas.

.env
TRUSTED_PROXIES=127.0.0.1,${CC_REVERSE_PROXY_IPS}
config/packages/framework.yaml
framework:
    # ...
    trusted_proxies: '%env(TRUSTED_PROXIES)%'

For more information on configuring symfony behind a reverse proxy, you can read the official documentation.

Apache 404 error after deployment

If everything looks fine and you still get 404 errors, remember that CleverCloud works with an Apache server, so you’ll need an htaccess in the /public directory. Symfony got your back on this: just run composer require symfony/apache-pack. See the official documentation of Symfony for more information.

Monitor your application with New Relic

You can use New Relic to monitor your application on Clever Cloud.

Please refer to our New Relic documentation to configure it for your application.

Environment injection

Clever Cloud injects environment variables from your application settings as mentioned in setting up environment variables and is also injecting in your application production environment, those from your linked add-ons.

Custom build configurations

On Clever Cloud you can define some build configuration: like the app folder to deploy or the path to validate your application deployment is ready To do that follow the documentation here and add the environement variable you need.

Linking a database or any other add-on to your application

By linking an application to an add-on, the application has the add-on environment variables in its own environment by default.

On add-on creation

Many add-ons do exist on Clever Cloud: refer to the full list and check add-ons dedicated pages for full instructions.

During add-on creation, an Applications screen appears, with a list of your applications. You can toggle the button to Link and click next. If you finish the process of add-on creation, the application is automatically linked to it.

Add-on already exists

In the Clever Cloud console, under the Service Dependencies menu of your application, you can use the Link add-ons dropdown menu to select the name of the add-on you want to link and use the add button to finish the process.

You can also link another application from the same page in the Clever Cloud console, using the Link applications dropdown menu.

Configure your database

Make sure you have created a database add-on in the Clever Cloud console, and that it’s linked to your application. When it’s done, you will be able to access all of your add-on environment variables from the application.

Change the default DATABASE_URL environment variable used in your config/packages/doctrine.yaml to <ADDON_PREFIX>_ADDON_URI where <ADDON_PREFIX> depending on the database addon you created (e.g. MYSQL for MySQL, POSTGRESQL for PostgreSQL or MONGODB for MongoDB) or be sure to use the environment variable in your production configuration file as explained in the configuration documentation of Symfony.

Configure ProxySQL for MySQL

To manage your connection pool towards your MySQL add-on, you can set-up a ProxySQL.

Once you have activated the ProxySQL (through the environment variable), a configuration example would be:

doctrine.yaml
dbal:
  unix_socket: '%env(CC_MYSQL_PROXYSQL_SOCKET_PATH)%'
  url: 'mysql://%env(MYSQL_ADDON_USER)%:%env(MYSQL_ADDON_PASSWORD)%@localhost/%env(MYSQL_ADDON_DB)%?serverVersion=%env(MYSQL_ADDON_VERSION)%'

Optional: run tasks after build step

If you want to have database migrations automatically run during each deployment, or frontend assets which must be built, you can write all these commands in clevercloud/post_build.sh like this one:

clevercloud/post_build.sh
# Database migrations
./bin/console doctrine:migrations:migrate --no-interaction

# Frontend build
 yarn install && yarn run build

Make sure this file is executable:

chmod +x clevercloud/post_build.sh

Then, add this to the application’s environment variables CC_POST_BUILD_HOOK=./clevercloud/post_build.sh.

Git Deployment on Clever Cloud

You need Git on your computer to deploy via this tool. Here is the official website of Git to get more information: git-scm.com

Setting up your remotes

  1. The “Information” page of your app gives you your Git deployment URL, it looks like this:

    1. git+ssh://git@push.clever-cloud.com/<your_app_id>.git
    2. Copy it in your clipboard
  2. Locally, under your code folder, type in git init to set up a new git repository or skip this step if you already have one

  3. Add the deploy URL with git remote add <name> <your-git-deployment-url>

  4. Add your files via git add <files path> and commit them via git commit -m <your commit message>

  5. Now push your application on Clever Cloud with git push <name> master

Refer to git deployments for more details.

FTP Deployment

Make sure you have Filezilla or an other FTP software installed in your machine.

When you chose to deploy your application via FTP at the application creation, the system creates a free FS Bucket with an ID matching your application’s ID.

Find the FTP credentials in the configuration tab of this particular FS Bucket.

Just follow the instructions of your FTP Software to send code to Clever Cloud.

⚠️ An FTP application automatically starts once you create the application, even if you don’t send any code yet.

Refer to Quick Start - FTP deployment for more details.

More configuration

Need more configuration? To run a script at the end of your deployment? To add your private SSH key to access private dependencies?

Go check the Common configuration page.

You may want to have an advanced usage of your application, in which case we recommend you to read the Administrate documentation section.

If you can’t find something or have a specific need like using a non supported version of a particular software, please reach out to the support.

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