Reference

The following pages provide technical descriptions on the individual components in the 12-factor framework support.

Extensions in Rockcraft and Charmcraft

The Rockcraft and Charmcraft documentation each contain in-depth descriptions of the native 12-factor framework support in the products:

The reference pages provide technical descriptions of the extensions so you can understand their configuration and operation. The pages detail the project files, requirements, and information about specific topics such as environment variables, proxies, background tasks, and secrets. The following table contains links to pages for the individual extensions.

Web app framework

Container image profiles

Software operator profiles

Django

Rockcraft Django extension

Charmcraft Django extension

Express

Rockcraft Express extension

Charmcraft Express extension

FastAPI

Rockcraft FastAPI extension

Charmcraft FastAPI extension

Flask

Rockcraft Flask extension

Charmcraft Flask extension

Go

Rockcraft Go extension

Charmcraft Go extension

Spring Boot

Rockcraft Spring Boot extension

Charmcraft Spring Boot extension

12-factor app charm

The following pages provide more information about the software operator built with Charmcraft.

  • Metrics and relations: A list of pages with technical descriptions about the enabled metrics and relations supported in the 12-factor app support in Charmcraft.

  • Charm architecture: An overview of the architecture, components, and source code.

Juju

The following pages contain descriptions of topics relevant to web app deployment with Juju.

  • Events: A list of Juju hooks relevant to the 12-factor tooling.

Project features and changes

The following pages provide more information about the 12-factor project.