Reserved actions

[Marco Ceppi]

I've created this issue, and will make sure it lands in time for Xenial.
https://github.com/juju/charm-tools/issues/161

On Tue, Mar 29, 2016 at 1:55 AM Rick Harding <rick.harding at canonical.com>
wrote:

> +1 to reserving the juju* space just as we do with relations and such.
>
> On Mon, Mar 28, 2016 at 10:12 PM Andrew Wilkins <
> andrew.wilkins at canonical.com> wrote:
>
>> On Tue, Mar 29, 2016 at 10:03 AM Marco Ceppi <marco.ceppi at canonical.com>
>> wrote:
>>
>>> On Mon, Mar 28, 2016 at 9:49 PM Andrew Wilkins <
>>> andrew.wilkins at canonical.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> There's a code review in progress (http://reviews.vapour.ws/r/4286/)
>>>> that will introduce a predefined action, "juju-run", which is part of the
>>>> replacement for the current SSH-based juju-run.
>>>>
>>>
>>> This is interesting. What's the semantics for this? How does juju-run
>>> action work for machine level items?
>>>
>>
>> From the end-user perspective, juju run should work just the same as
>> before. There will be a machine-level worker in Juju that will initially
>> handle only juju-run actions. It's not expected that you'll use juju-run
>> actions directly, but I don't think there's anything stopping you.
>>
>> This means that "juju-run" will no longer be a valid action name for use
>>>> in a charm. This may come up again in the future, so we think it would be
>>>> prudent to reserve a namespace for additional predefined actions. The most
>>>> straightforward thing to do would be to reserve the "juju-" prefix, like we
>>>> do for relations.
>>>>
>>>
>>> This seems fine, we'll add "juju-run" as a blacklist in charm proof.
>>>
>>
>> If everyone's OK with reserving the "juju-" prefix, I think it would be
>> better to blacklist the whole namespace. Nip it in the bud.
>>
>>
>>> Any objections? Does anyone have any actions using the "juju-" prefix
>>>> already?
>>>>
>>>
>>> I don't believe so, I'l do a quick search in the charm store though to
>>> verify
>>>
>>>
>>>> Cheers,
>>>> Andrew
>>>>
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>
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