Reference

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 proxies, background tasks, and secrets.

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	Coming soon

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

Furthermore, the framework support in Charmcraft comes with enabled metrics and relations depending on the extension. The following table contains links to the relevant Charmcraft documentation for each web app framework:

Web app framework	Metrics and tracing	Supported integrations
Django	Django extension | Grafana dashboard graphs	Django extension | Relations
Express	Express extension | Observability	Express extension | Relations
FastAPI	FastAPI extension | Observability	FastAPI extension | Relations
Flask	Flask extension | Grafana dashboard graphs	Flask extension | Relations
Go	Go extension | Observability	Go extension | Relations
Spring Boot	Coming soon	Coming soon

All contents

• Juju events
• Customizable features
• Changelog