forum/README.md
2019-09-30 23:15:09 +02:00

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# Symfony Docker
A [Docker](https://www.docker.com/)-based installer and runtime for the [Symfony](https://symfony.com) web framework, with full [HTTP/2](https://symfony.com/doc/current/weblink.html) and HTTPS support.
## Getting Started
1. Run `docker-compose up` (the logs will be displayed in the current shell)
2. Open `https://localhost` in your favorite web browser and [accept the auto-generated TLS certificate](https://stackoverflow.com/a/15076602/1352334)
3. **Enjoy!**
## Selecting a Specific Symfony Version
Use the `SYMFONY_VERSION` environment variable to select a specific Symfony version.
For instance, use the following command to install Symfony 3.4:
`SYMFONY_VERSION=3.4.* docker-compose up --build`
To install a non-stable version of Symfony, use the `STABILITY` environment variable during the build.
The value must be [a valid Composer stability option](https://getcomposer.org/doc/04-schema.md#minimum-stability)) .
For instance, use the following command to use the `master` branch of Symfony:
```bash
STABILITY=dev docker-compose up --build
```
## Debugging
The default Docker stack is shipped without a Xdebug stage.
It's easy though to add [Xdebug](https://xdebug.org/) to your project, for development purposes such as debugging tests or API requests remotely.
### Add a Development Stage to the Dockerfile
To avoid deploying Symfony Docker to production with an active Xdebug extension,
it's recommended to add a custom stage to the end of the `Dockerfile`.
```Dockerfile
# Dockerfile
FROM symfony_docker_php as symfony_docker_php_dev
ARG XDEBUG_VERSION=2.6.0
RUN set -eux; \
apk add --no-cache --virtual .build-deps $PHPIZE_DEPS; \
pecl install xdebug-$XDEBUG_VERSION; \
docker-php-ext-enable xdebug; \
apk del .build-deps
```
### Configure Xdebug with Docker Compose Override
Using an [override](https://docs.docker.com/compose/reference/overview/#specifying-multiple-compose-files) file named `docker-compose.override.yaml` ensures that the production
configuration remains untouched.
As example, an override could look like this:
```yaml
version: '3.4'
services:
app:
build:
context: .
target: symfony_docker_php_dev
environment:
# See https://docs.docker.com/docker-for-mac/networking/#i-want-to-connect-from-a-container-to-a-service-on-the-host
# See https://github.com/docker/for-linux/issues/264
# The `remote_host` below may optionally be replaced with `remote_connect_back`
XDEBUG_CONFIG: >-
remote_enable=1
remote_host=host.docker.internal
remote_port=9001
idekey=PHPSTORM
# This should correspond to the server declared in PHPStorm `Preferences | Languages & Frameworks | PHP | Servers`
# Then PHPStorm will use the corresponding path mappings
PHP_IDE_CONFIG: serverName=symfony-docker
```
Then run:
````bash
docker-compose up -d
````
If `docker-compose.yaml` and a `docker-compose.override.yaml` are present on the same directory level, Docker Compose combines the two files into a single configuration, applying the configuration in the `docker-compose.override.yaml` file over and in addition to the values in the `docker-compose.yaml` file.
### Troubleshooting
Inspect the installation with the following command. The requested Xdebug version should be displayed in the output.
```bash
$ docker-compose exec app php --version
PHP 7.2.8 (cli) (built: Jul 21 2018 08:09:37) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
with Zend OPcache v7.2.8, Copyright (c) 1999-2018, by Zend Technologies
with Xdebug v2.6.0, Copyright (c) 2002-2018, by Derick Rethans
```
### Editing Permissions on Linux
If you work on linux and cannot edit some of the project files right after the first installation, you can run `docker-compose run --rm app chown -R $(id -u):$(id -g) .` to set yourself as owner of the project files that were created by the docker container.
## Credits
Created by [Kévin Dunglas](https://dunglas.fr), co-maintained by [Maxime Helias](https://twitter.com/maxhelias) and sponsored by [Les-Tilleuls.coop](https://les-tilleuls.coop).