Deploying webapp to Tomcat Charm

[Matt Bruzek]

Hi Tom,

Take a look at the openmrs charm for an example of a war file deploying to
a tomcat charm.

https://jujucharms.com/openmrs/precise

Subordinate charms like openmrs it will not run the install hook until it
is related to a container charm, so normal charm hooks (install,
config-changed, start) would be what you can use.

The openmrs charm has not been ported/tested with trusty so that is the
reason there is no trusty version yet.  In the mean time you can put
openmrs in a trusty directory and deploy a local copy that way.  The
openmrs charm uses a juju-info relation that can relate to any charm
including the trusty version of tomcat. It was pointed out that creating a
javawebapp relation was a better way to relate webapps and that change was
made in precise but not tested/moved forward to trusty at this time.

Please contact me if you have any other questions, I would be happy to help
you develop your charm.

Thanks,


   - Matt Bruzek <matthew.bruzek at canonical.com>

On Wed, Aug 19, 2015 at 8:34 AM, Tom Barber <tom at analytical-labs.com> wrote:

> Hi chaps
>
> After a chat with Corey et al a few weeks ago it was suggested I deploy
> our product using the Tomcat charm as a container, which I thought was a
> pretty good suggestion.
>
> So, I look at the precise charm and it says:
>
> For another charm to provide a webapp, it must be a subordinate charm that
> supports the java-webapp relation.
>
> Can someone show me an example or just elaborate on that a bit more, how
> does it know which file to deploy, does it require a trigger or similar?
>
> Also that stuff is missing in the Trusty Tomcat charm from what I can see.
> Why is there a disparity in versions and if so, whats the best way to
> deploy a war?
>
> Tom
>
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