Manage a 12-factor app charm

These guides walk you through all ways you can manage 12-factor app charms, from initialization to usage.

Extensions add customized elements to a charm for specific web app frameworks. While the overall basic logic is the same as managing a charm, the following guides are about the 12-factor app charm workflow.

Initialization

You need both a rock and a charm to have a deployable 12-factor app in Juju.

The charm initialization step uses the --profile flag to cater the initial charm files for your specific framework.

• Initialize your 12-factor app charm
  • Prepare an OCI image for a 12-factor app charm
  • Prepare a 12-factor app charm

Configuration

Once your 12-factor app charm has been set up, you can customize many aspects of it using Juju.

• Configure your 12-factor app charm
  • Add a new configuration
  • Add a custom action
  • Manage secrets
  • Write a Kubernetes charm for an async Flask app

Integration

Once deployed, your 12-factor app can be integrated into nearly anything in the Juju ecosystem.

• Integrate your 12-factor app charm
  • Integrate with a database
  • Integrate with ingress
  • Integrate with observability

Usage

Now that you’ve initialized and configured your 12-factor app charm, you’re ready to use it.

• Use your 12-factor app charm
  • Create an admin user for a Django app charm
  • Migrate the workload database
  • Troubleshoot the charm
  • Use observability