Juju Skill

Use Juju to develop and test changes in the Ops project. Works on Linux, ideally in a sandboxed environment.

Quickstart

sudo concierge prepare -p dev  # Installs all the required packages and bootstraps local clouds and Juju itself
juju switch concierge-lxd  # For a machine charm
juju switch concierge-k8s  # For a Kubernetes charm
juju add-model claude-[random ID]  # Use a consistent prefix

After adding a model ALWAYS tell the user the name of the model and how they can inspect the status, filling in the details:

To inspect the status of the model:
  juju status -m [contoller-name]:[model-name]

Or to see the Juju logs:
  juju debug-log -m [controller-name]:[model-name]

This must ALWAYS be printed right after a session was started and once again at the end of the tool loop. But the earlier you send it, the happier the user will be.

Watching output

Use juju debug-log -m [controller-name]:[model-name]. See juju debug-log --help for details.

Important commands

• charmcraft pack - use this to pack a charm so that it can be deployed
• juju deploy -m [controller-name]:[model-name] ./path-to-charm.charm - deploy a charm -- see --help for information about providing resources
• juju status --format json -m [controller-name]:[model-name] - get information about the status of the deployed charms
• juju actions and juju run - run an action that a charm defines
• juju config - set configuration for a charm
• juju integrate - create a relation between two charms
• juju ssh - open a SSH connection to a charm container, see --help for details

Cleanup

• Remove a model when done: juju destroy-model [controller-name]:[model-name]
• Do not remove the controller unless explicitly requested
• Do not remove any of the packages installed by Concierge unless explicitly requested