Juju 2.0 and local charm deployment

[Ian Booth]

So to clarify what we'll do. We'll support the same syntax in bundle files as we
do for deploy.

Deploys charm store charms:

$ juju deploy cs:wordpress
$ juju deploy wordpress

Deploys a local charm from a directory:

$ juju deploy ./charms/wordpress
$ juju deploy ./wordpress

So below deploys a local nova-compute charm in a directory co-located with the
bundle.yaml file.

 series: trusty
 services:
   nova-compute:
     charm: ./nova-compute
     num_units: 2

This one deploys a charm store charm:

 series: trusty
 services:
   nova-compute:
   charm: nova-compute
   num_units: 2



On 09/03/16 03:59, Rick Harding wrote:
> Long term we want to have a pattern when the bundle is a directory with
> local charms in a directory next to the bundles.yaml file. We could not do
> this cleanly before the multi-series charms that are just getting out the
> door. I think that bundles with local charms will be suboptimal until we
> can get those bits to line up.
> 
> I don't think we want to be doing the file based urls, but to build a
> pattern that's reusable and makes sense across systems. Creating a standard
> pattern I think is the best path forward.
> 
> On Tue, Mar 8, 2016 at 12:26 PM Martin Packman <martin.packman at canonical.com>
> wrote:
> 
>> On 05/03/2016, Ian Booth <ian.booth at canonical.com> wrote:
>>>>
>>>> How will bundles work which reference local charms? Will this work as
>>>> expected where nova-compute is a directory at the same level as a bundle
>>>> file?
>>>>
>>>> ```
>>>> series: trusty
>>>> services:
>>>>   nova-compute:
>>>>     charm: ./nova-compute
>>>>     num_units: 2
>>>> ```
>>>>
>>>
>>> The above will work but not until a tweak is made to bundle deployment to
>>> interpret a path on disk rather than a url. It's a small change. This
>> would
>>> be done as part of the work to remove the local repo support.
>>
>> Can we keep interpreting the the reference in the bundle as a url, but
>> start supporting file urls? That seems neater than treating the cs:
>> prefix as magic not-a-filename.
>>
>> The catch is that there's no sane way of referencing locations outside
>> a base url.
>>
>>     charm: file:nova-compute
>>
>> Works as a reference to a dir inside the base location, but:
>>
>>     charm: file:../nova-compute
>>
>> Will not work as a reference to a sibling directory. And absolute file
>> paths are pretty useless across machines.
>>
>> Martin
>>
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> 
> 
>