Composer template for Drupal 8 projects hosted on Pantheon and using Docker for local development environment
⚠️ Experimental project, (*1)
This project template should provide a kickstart for, (*2)
- managing your local development environment with Docker
- managing your site dependencies with Composer
- hosting your site on Pantheon
Usage
First you need to install docker,
and docker-compose. If using
OS X, install GNU coreutils or any
other implementation of the realpath
command., (*3)
After that you can create the project:, (*4)
docker run --rm -v $(pwd):/var/www/html -v $HOME/.composer/cache:/root/.composer/cache -e COMPOSER_ALLOW_SUPERUSER=1 -e USER_UID=$(id -u) -e USER_GUID=$(id -g) drupaldocker/php:7-cli composer create-project --stability dev --ansi floe/drupal-project some-dir 8.x
Use docker-compose
to run applications inside the configured Docker
containers:, (*5)
-
docker-compose run php-cli bash
: Enter a shell to execute cli
applications (Composer, Drush, Drupal Console, etc.)
-
docker-compose up web
: Start a web server inside its own Docker
container, accessible as http://localhost.
Aliases for the most used commands to run inside the Docker containers
are provided in the bin
directory. It is suggested to put bin
in
your PATH
while working on the project. The recommended way is to use
direnv, (*6)
See the docker-compose
file for details of the configured containers., (*7)
The create-project
command above passes ownership of all files to
the project that is created. You should create a new git repository,
update the README.me and composer.json file, then commit all files not
excluded by the .gitignore file., (*8)
What does the template do?
- Docker containers to work on the project are defined in the
docker-compose.yml
file.
-
Aliases for the most used commands to run inside the Docker
containers are provided in the
bin
directory.
- Drupal will be installed in the
web
-directory.
- Autoloader is implemented to use the generated composer autoloader in
vendor/autoload.php
,
instead of the one provided by Drupal (web/vendor/autoload.php
).
- Modules (packages of type
drupal-module
) will be placed in web/modules/contrib/
- Theme (packages of type
drupal-theme
) will be placed in web/themes/contrib/
- Profiles (packages of type
drupal-profile
) will be placed in web/profiles/contrib/
- Creates default writable versions of
settings.php
and services.yml
.
- Creates
sites/default/files
-directory.
- Latest version of drush is installed locally for use at
vendor/bin/drush
.
- Latest version of DrupalConsole is installed locally for use at
vendor/bin/drupal
.
Updating Drupal Core
This project will attempt to keep all of your Drupal Core files up-to-date; the
project drupal-composer/drupal-scaffold
is used to ensure that your scaffold files are updated every time drupal/core is
updated. If you customize any of the "scaffolding" files (commonly .htaccess),
you may need to merge conflicts if any of your modfied files are updated in a
new release of Drupal core., (*9)
Follow the steps below to update your core files., (*10)
- Run
composer update drupal/core --with-dependencies
to update Drupal Core and its dependencies.
- Run
git diff
to determine if any of the scaffolding files have changed.
Review the files for any changes and restore any customizations to
.htaccess
or robots.txt
.
- Commit everything all together in a single commit, so
web
will remain in
sync with the core
when checking out branches or running git bisect
.
- In the event that there are non-trivial conflicts in step 2, you may wish
to perform these steps on a branch, and use
git merge
to combine the
updated core files with your customized files. This facilitates the use
of a three-way merge tool such as kdiff3. This setup is not necessary if your changes are simple;
keeping all of your modifications at the beginning or end of the file is a
good strategy to keep merges easy.
FAQ
How can I apply patches to downloaded modules?
If you need to apply patches (depending on the project being modified, a pull
request is often a better solution), you can do so with the
composer-patches plugin., (*11)
To add a patch to drupal module foobar insert the patches section in the extra
section of composer.json:, (*12)
"extra": {
"patches": {
"drupal/foobar": {
"Patch description": "URL to patch"
}
}
}