charmcraft 4.2.1

The main tool to build, upload, and develop in general the Juju charms.

Charmcraft

Charmcraft is the command-line tool for initializing, packaging, and publishing charms, the software operators used by Juju. With Charmcraft, you can bypass the boilerplate steps of crafting a charm and focus on what matters — building scalable, configurable, and easy-to-deploy applications for Juju.

Basic usage

Charmcraft provides commands to streamline every step of the charm development process, from initializing your charm project to releasing it on Charmhub.

In your project's root directory, initialize your charm project with basic template content by running:

charmcraft init

Once you've configured your project to suit the needs of the application you're charming, build the charm by running:

charmcraft pack

If you're ready to distribute your charm, you can register its name on Charmhub with:

charmcraft register

Upload your charm and any subsequent revisions to Charmhub with:

charmcraft upload

Installation

Charmcraft is available on all major Linux distributions and macOS.

The recommended way to install Charmcraft on Linux systems is through its snap.

sudo snap install charmcraft --classic

For information on installing Charmcraft on other platforms, refer to our installation guide.

Documentation

The Charmcraft documentation provides guidance and learning materials for every step of the charming process. Whether you're new to charming or a seasoned expert, this is the best place to deepen your knowledge.

Community and support

To get in touch with developers and other charmcraft-badge: https://snapcraft.io/charmcraft/badge.svg charmcraft-site: https://snapcraft.io/charmcraft members of the charming community, reach out on the forum or in our Matrix channel.

You can report any issues or bugs on the project's GitHub repository.

Charmcraft is covered by the Ubuntu Code of Conduct.

Contribute to Charmcraft

Charmcraft is open source and part of the Canonical family. We would love your help.

If you're interested, start with the contribution guide.

We welcome any suggestions and help with the docs. The Canonical Open Documentation Academy is the hub for doc development, including Charmcraft docs. No prior coding experience is required.

License and copyright

Charmcraft is released under the Apache-2.0 license

© 2023-2025 Canonical Ltd.