When working on configuration in a module, whether as part of a migration that uses Migrate Plus configuration entities, or while developing custom configuration entities, you'll often need to re-import the configuration stored in the .yml files of the modules config/install/ or config/optional/ directories. This is tricky though, because Drupal only reads in those default configuration settings when the module is first enabled. So any changes you make to those files after the module has been installed will not be reflected without these workarounds.

Knowing how to do this can improve the developer experience of adding (or debugging) the default configuration that's provided with a module. Or for anyone using Migrate Plus configuration entities as part of a migration.

In this tutorial we'll:

• Learn about the Configuration Development module
• Look at how you can use Drush to perform a partial configuration import
• Write an implementation of hook_uninstall() to remove a module's configuration when it's uninstalled

By the end of this tutorial you should be able to re-import the configuration provided by a module without having to uninstall and then reinstall the module.

Now that we have some default simple configuration stored in a settings YAML file, let's utilize it in a form that our site administrators can use to update those values. We'll make use of some services and methods in Drupal's Configuration API in order to retrieve, update, and save simple configuration values with a form.

The Configuration Manager module gives you as an administrator the ability to import and export configuration items on different instances of a Drupal site using a graphical user interface. In this tutorial, we'll take a tour of the Configuration Manager and the administrative interface it provides.

By the end of this lesson you will be able to:

• Access administrative pages for Import, Export, and Synchronize
• Find and configure permissions for Configuration Manager
• Identify the 3 primary actions of configuration management and how to perform them using the UI

While the administrative UI for Configuration synchronization certainly provides a simple and effective means to export and import configuration, it is by no means the preferred method. The Drush command line utility provides the same functionality without the need for a web interface or the need to log in.

In this tutorial, we'll cover how to load configuration entity data in a module. We'll change the AdminSettingsForm.php we created and replace the simple textfield we were using with a dropdown select list. Then we'll use data from our Transcode Profile module's configuration entity, loaded by the EntityTypeManager via the services container, to choose our preferred Transcode Profile.

By the end of this tutorial, you should be able to:

• Know how to load configuration entities using EntityTypeManager via the services container
• Update the AdminSettingsForm.php to use a dropdown select list
• Save your preferred transcode profile from a list of transcode profile entities
• Update the default configuration provided with the demo module to include transcode profiles

The real power of the Workflows module is the fact that you can define your own custom workflows. Creating a new custom workflow requires adding a new workflow, and configuring the states and transitions that workflow will use.

In this tutorial we'll:

• Create and configure a new workflow
• Define and configure a set of states and transitions for the workflow
• Understand some best practices to keep in mind when defining workflows

By the end of this tutorial you'll be able to define your own custom workflows for any use-case.

The Content Moderation module exposes data about a content item's moderation state to Views. That allows us to use that information when building custom views. The data includes a moderation state field, filter, and a relationship to the moderation state entity.

In this tutorial we'll:

• Build a new view that uses the moderation state field and lists all revisions for a content item
• Display that view as a block which can be shown on any content page

By the end of this tutorial you'll know how to use the moderation state field in a view.

The Content Moderation module allows you to apply an editorial workflow to your content. Doing so changes some of the ways that content managers will mark an item as published, archive an item, or create new revisions.

In this tutorial we'll:

• Look at the changes to the content editing form that happen when you apply an editorial workflow
• Learn how to edit a piece of content to change its state, and transition it through the editorial workflow

By the end of this tutorial you'll know how to create, and manage, content in an editorial workflow.

Many sites are built around their content, especially Drupal sites. To manage this content, a strict editorial workflow is often highly desirable to make sure the content is drafted, reviewed, published, updated, and archived when ready.

In this tutorial we'll:

• Discuss the various components you'll need to define before you can start building a custom editorial workflow
• Provide an example editorial workflow plan

By the end of this tutorial you will better understand the use case for content moderation, and be able to create an editorial workflow plan for your use-case.

In order to enforce that an editorial workflow is applied to a specific content type you need to update the workflow's configuration. Then, depending on your needs, you may also need to configure new user roles, giving them permission to transition a content item from one state to another.

This process works for any Content Moderation type workflow -- including the Editorial workflow that Drupal provides and any custom workflows you've created.

In this tutorial we'll:

• Update a workflow so that its rules are applied to a content type
• Review the list of permissions provided by a workflow and see how we can set things up to restrict certain users to only perform specific transitions

By the end of this tutorial you will be able to configure a workflow so that it applies to one or more content types, and configure permissions so only users in a specific role can transition content items from one state to another.

When building views of moderated content there are some important things to be aware of. One is the difference between choosing Content or Content revisions as the base for your view. You should also know about some fields and filters added by the Content Moderation module.

In this tutorial we'll:

• Understand when, and why, to choose Content revisions as the base for your view instead of Content
• Learn about the fields, and filters, added by the Content Moderation module
• Learn how to update the view at admin/content/moderate that comes with the Content Moderation module to make it work with any workflow.

By the end of this tutorial you should understand the important concepts necessary to create views of moderated content.

Drupal has had revisions for a long, long time. However, they have often been under-utilized. Understanding how revisions work and how the Content Moderation module works with them is important to for being able to take full advantage of the systems features.

In this tutorial we'll:

• Explain what the different types of revisions are
• Understand when, and how, revisions are created

By the end of this tutorial you should have an understanding of what each type of revision is, how they're created, and how to work with them.

The Workflows and Content Moderation modules allow an editorial team to put any type of content administered in Drupal through a customized editorial workflow and moderation process. Workflow states, such as draft, ready for review, or approved are defined using the Workflows module. The ability to attach moderation states to entity bundles -- a common example being content types -- is configurable by the Content Moderation module.

Both modules have stable releases and are perfectly safe to use in production.

In this tutorial we'll:

• Learn about the use case for Workflows and Content Moderation modules
• Define the role that each module performs
• Define some common terms you'll need to understand when working with these two modules

By the end of this tutorial you will have a good understanding of what the Workflows and Content Moderation modules are, what different functionality they provide, and the permissions made available by the modules.

Docker often seems like an impenetrable product. Is it a VM system? A suite of development tools? A clustering product? A software distribution facility? When the answer is "yes" to each of these, it only becomes more confusing. For the Drupal developer, Docker is a way to provide a local development environment to run web server software.

In this tutorial, we'll:

• Define the terms hypervisor, virtual machine (VM), and containers
• List the advantages of containers over VMs
• List the advantages of Docker for Drupal developers

Installing Docker is easy, but there are some details you may want to consider before you download and run the installer.

In this tutorial, we'll focus on:

• Why Linux is Docker’s native environment
• The difference between Docker edge vs. Docker stable
• Why Docker for non-Linux requires a VM

Now that we know what Docker is, what containers are, and how to install Docker, just how do we use containers? While graphical user interfaces (GUI) exist for Docker, the primary way to interact with it is via the command line.

In this tutorial, we'll:

• Start Docker for Mac or Docker for Windows
• Use the docker run command to run a container interactively
• Break down the arguments of the docker run command

Containers are sandboxed applications that can be run anywhere, no matter the underlying host OS. Docker containers are quite different from VMs in a number of ways that need to be understood before we can use them to develop Drupal sites.

In this tutorial, we'll:

• Define a container
• Explain how a container is a more limited environment than a VM

When we use docker run to start a container, we download a compressed, ready-to-use container called an image. Images make containers easy to share via a registry like Docker Hub, but also affect how file storage works when using containers.

In this tutorial, we'll:

• Discuss how file storage works in Docker containers
• Describe images, base images, and the scratch image
• Identify layers and show how layers make up Docker's filesystem

Running a container interactively can be useful, but often it's not what we really need. A web server stack is made up of several components such as the Linux OS, the Apache web server, a PHP runtime, and a database such as MySQL. Collectively, we call this a LAMP stack. If we were to run these in Docker with what we now know, we'd have to keep open several terminal windows!

Obviously that's not what we want to do. Instead, we want to run the containers in the background. That way, we can use them like we would any web server. Fortunately, Docker makes running and managing a container in the background easy with just a few commands.

In this tutorial, we'll:

• Start a container in the background
• Use docker ps to list running Docker containers
• Use docker run to enter a container running in the background
• Use docker kill to stop a container running in the background

Often we don't want to run just one container at a time, but a set of containers that act together to provide a unit of functionality. Yet, docker run only starts one container at a time, with one command in each container at a time.

Docker Compose lets us overcome this limitation by allowing us to define a single file that describes multiple containers, their relationship to each other, and utilities to manage that set of containers as a single unit.

In this tutorial, we'll:

• Introduce Docker Compose
• Run multiple containers at once using Docker Compose
• Identify the purpose of docker-compose.yml
• Learn what resources a set of containers share