About GUI juju control panel

Mark Shuttleworth mark at ubuntu.com
Thu Mar 27 09:06:33 UTC 2014


On 27/03/14 16:54, Sameer Zeidat wrote:
> Juju by design does not enforce parameter changes. It's basically up
> to the charm writer to apply the change or silently ignore it. Juju,
> and hence the GUI, will accept the change and store it regardless.
>
> Since juju has no notion of "read-only" parameters, it's the charm
> writer's job to document which of his parameters are only used during
> installation, and which are available to change afterwards. Many times
> you'll end up learnig how a parameter change is handled by trial, or
> by looking inside the charm hook script.

That reflects the issue, but...

It's a fair point that we could design for better feedback of such
non-editable parameters.

Mark
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