Updated on 10 May 2018

If you are still unsure and want a flight check of the Drupal core - or any other Drupal project - straight from the comfort of your browser, just have a look at the Simplytest.me service. If you are ready to roll, lift off!

Quick install for evaluation

 

$ curl -sS https://ftp.drupal.org/files/projects/drupal-x.y.z.zip --output drupal-x.y.z.zip
$ unzip drupal-x.y.z.zip
$ cd /path/to/drupal-x.y.z
$ php core/scripts/drupal quick-start
18/18 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓]
Congratulations, you installed Drupal!
Username: admin
Password: NlH5cmfEzsbS3DSs
Drupal development server started: <http://127.0.0.1:8888>
This server is not meant for production use.
One time login url: <http://127.0.0.1:8888/user/reset/1/.../login>
Press Ctrl-C to quit the Drupal development server.

Sources:

Drupal core fast ? local install for development

If you plan to start development or site building with contributed modules and themes, you should become familiar with Composer, as it is used to install projects (in the /themes/contrib or /modules/contrib directories) and their dependencies (in the vendor directory).

All you need here is a recent PHP version (5.6+), Composer, and limited knowledge of a terminal.
If everything goes well it should be less than a 5 minute process...
hey, let's try something faster than Wordpress ; )

You can check your PHP version under your terminal with the following command.

php -v

The output should be something like

PHP 5.6.30 (cli) (built: Feb  7 2017 16:18:37)
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies

Note that the latest MacOS version (High Sierra) comes with PHP 7, which is fine! See the note about Server requirements and this article about the PHP 7 benefits.

  1. Start from the Composer template for Drupal projects. This project is available on GitHub, but at this stage, just execute
    composer create-project drupal-composer/drupal-project:8.x-dev drupal84 --stability dev --no-interaction
     
  2. Get some coffee while Composer is fetching all the dependencies, then go into the 'web' (also known as docroot) directory and launch to built in PHP server.
    cd drupal84/web
    php -S localhost:8000

    Then open http://localhost:8000 in your favourite browser and follow the installation wizard.

Drupal installation

Based on the built in PHP server you will probably have some warning about PHP OPcode caching for performance, you can now safely ignore it and click on 'continue anyway' at the bottom of the page, we are just testing.

Ignore warnings
Prepare your database credentials or just use the SQLite option if you have no database configured yet.

Drupal installed

    Feedback more than welcome! Talk, in this one minute poll, about your Drupal 8 adoption

    If everything went well, you may want to skip for now the explanations about troubleshooting and alternate methods of installation and go straight to modules and themes installation

    Troubleshooting

    Pitfalls

    You can download the code straight from Drupal.org, although, this is really not recommanded because most of the modules are now relying on Composer to get their dependencies (e.g. Address needs Commerce Guys libraries).

    Avoid using the Composer Manager module that can still be mentionned in some documentation, it was used to cover the lack of Composer support during the early stage of Drupal 8 but is now deprecated.

    Alternate Composer project creation methods

    Drupal Composer helper

    The motive behind writing this plugin was to make a Drupal composer based setup more maintainable. It is easy to start with the template provided by drupal-composer/drupal-project but upgrading it is difficult. The plugin solves that problem by keeping all the code outside your project and in the plugin which would make upgrading as easy as running composer update.

    Run this command to install the composer plugin (one-time):

    $ composer global require hussainweb/drupal-composer-init

    To create a new composer.json file, run this command:

    $ composer drupal-init

    Follow the instructions on the screen to create a composer.json file.

    Once the composer.json is created, run the following command to download all dependencies:

    $ composer install

    More resources on Drupal.org

    Using Apache or Nginx server for site building and development

    The PHP built in server is just enough for playing around or testing. Using a faster server is strongly recommended for site building or development.

    Use an Apache or Nginx server from your host or from a virtual machine.

    Just check the installation of a development environment.

    Speed of the light Drupal installation

    Chances are that you will adopt one of these methods once when you will need to install several Drupal projects.

    Drupal Console

    How to Download and Install Drupal 8.4 using Drupal Console.

    Drush

    Cd in the docroot directory (e.g. 'web').
    Example with a MySQL database, see also other installation methods

    drush si --db-url=mysql://root:pass@localhost:port/dbname

    Phing

    If you are using Pieter Frenssen fork, just create a copy of build.properties.dist into build.properties.local, then drop these two lines in your terminal and grab some more coffee (you should stop).

    phing install (installs Drupal)

    phing setup-dev (fast setup of your dev environment).

    Example of build.properties.local

    The minimal settings of build.properties.local should be

    # The project name, also used for the database name (avoid special chars here)
    project.name = drupalship
    drupal.db.password = root

    # The base URL. This is used for doing functional tests in Behat and PHPUnit.
    drupal.base_url = http://drupalship.dev

    # Verbosity of Drush commands. Set to 'yes' for verbose output.
    drush.verbose = yes

    Versioning

    The Composer template for Drupal project (Pieter Frenssen fork included) gitignores the vendors (/vendor directory), the Drupal core and contributed modules to keep your repository clean.
    It also gitignores the environment settings and user files.
    So you can start to create a git repository straight from what was created by Composer. Sweet.

    Distributions

    Another timesaver option, give at least a try to distributions, they could probably cover your needs (decoupling, commerce, improve authoring experience, ...) or at least teach you how to configure modules with well tested site building techniques.

    Server Requirements

    Drupal 8.4.x server requirements.

    • Web server : like Apache or Nginx on Unix or IIS on Windows
    • Database : MySQL 5.5.3+, PostgreSQL 9.1.2, SQLite 3.4.2/
    • PHP 5.5.9+, but...
      • depending on your Drupal installation, you will need PHP 7.0+ (doctrine/inflector v1.2.0 requires php ^7.0 -> your PHP version (5.6.30) does not satisfy that requirement.)
      • Drush, the Drupal shell, needs at least PHP 5.6.0.
      • Do not forget that, based on your setup, the PHP version can differ between your server (Apache, ...) and the CLI.

    Install requirement (Drupal.org)

    Read this issue about the future Drupal versions: Remove PHP 5.5 and 5.6 support in Drupal 8.6

    The easiest way to get started with a development environment is Drupal VM or a local PHP server.
    On Mac OSX if you have already PHP and MySQL (homebrew) php -S localhost:8000

    Modules and Themes

    We are just talking here about installation, uninstallation and update.
    You can also find a list of most installed projects.

    Install

    Get the project name, it is the URL suffix. E.g. for the Search API module, use  search_api, use Composer on the directory of your composer.json file (most of the time, the parent directory of the docroot).

    composer install drupal/search_api

    If you want a specific version of a module, append the suffix that is right after the 8.x- reference on the project page or run

    composer install drupal/search_api:1.x-dev

    Then install it via the administration interface (/admin/modules) or use drush under the docroot directory drush en search_api

    For distributions, just follow the method recommanded by the maintainer as it can have some variations.

    Uninstall

    Uninstall it from the administration interface (/admin/modules/uninstall) or use drush pmu  my_module.

    Then remove it via Composer

    composer remove drupal/my_module

    Update

    Update a project

    Let's say that we want to update the address project

    composer update drupal/address --with-dependencies

    Update the core

    composer update drupal/core --with-dependencies

    Then, in any case, check if a database update is necessary.

    drush updb or go to /update.php

    Using Composer to manage Drupal site dependencies

    Basic Configuration

    Now that you have a Drupal site installed, you can go on with the site building by learning some Drupal concepts.

    Oh, one more, if something does not seem to be there after installing a project "keep calm and clear the cache".
    Head to /admin/config/development/performance and hit the Clear all caches button or use drush cr (Drush cache rebuiltd, was drush cc all in Drupal 7).

    See also the Drupal tools for developers to setup a development environment, it will avoid you to clear the cache constantly during the build.

    Deploy in Production

    You can use a deployment scripts coupled to Capistrano, Jenkins, TravisCI, ...

    This video is an update of the Drupal Dev Days Seville 2017 presentation: Deploying Drupal: Patterns and Antipatterns

    Regarding Composer, this post about Composer documentation for Drupal will bring new clues.

    Production routines will be detailed later on. Meanwhile, have a look at the production checklist.

    You can also have a look at the host page for staging and production environments that are suitable for Drupal 8.

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