Skip to main content
  1. Blog
  2. Article

Jorge O. Castro
on 21 November 2014

Charm Workshop: Debugging Juju Hooks


In this charm school Charles Butler and Corey Johns go over the traditional way to debug Juju charm hooks, and Corey introduces his new Juju plugin, DHX, designed to make debugging hooks much easier.

Corey’s debug hook script, DHX, is available here: https://github.com/juju/plugins

Related posts


Canonical
25 August 2026

Arduino® VENTUNO™ Q is available for pre-order with Ubuntu pre-installed

Canonical announcements Ubuntu tech blog

London, UK – August 25, 2026 – Following our initial collaboration announcement in March 2026, Canonical and Arduino (a subsidiary of Qualcomm Technologies, Inc.) are excited to announce that VENTUNO Q is now generally available for pre-order, pre-loaded with Ubuntu. VENTUNO Q is a dual-brain developer board designed for edge AI and robot ...


Mikhail Khazov
13 August 2026

Advantech AOM-2721 is now Ubuntu Certified

Hardware Enablement Ubuntu tech blog

Canonical announces that the Advantech AOM-2721 is officially joining the list of Ubuntu Certified Hardware. ...


Canonical
11 August 2026

Canonical integrates NVIDIA Nemotron 3.5 Lightning with Ubuntu for always-on AI agents

AI Ubuntu tech blog

Canonical is pleased to announce that  NVIDIA’s newly introduced NVIDIA Nemotron 3.5 Lightning, an open, customizable model built for always-on AI agents, is now available on Ubuntu with single-command installation.  NVIDIA Nemotron 3.5 Lightning is an open 30B hybrid Mixture-of-Experts (MoE) model with 3B active parameters, designed for ...