Docker compose in Juju

[Charles Butler]

Greetings Gayan!

You most certainly can compose and use a full docker-provided stack, mix
and match with charms - thats the power of wrapping your compose-based
service with layer-docker.

https://github.com/juju-solutions/layer-docker

Which is a great starting place for charming up your dockerized app using
charms.docker to lend a hand with the ops knowledge to get it running :)

https://github.com/juju-solutions/charms.docker
http://pythonhosted.org/charms.docker/modules.html

There are several examples in the charm store from myself (lazypower) and
Matt Bruzek (mbruzek)  that are docker based. I believe the most straight
forward example that I can illustrate today is the swarm layer, which
builds the swarm charm.

https://github.com/juju-solutions/layer-swarm
https://jujucharms.com/u/containers/swarm-core

This is a multi-series charm that delivers swarm via containers, backended
by consul or etcd as the discovery mechanism. This has a good mix of
relationships, base layers, top-layers (what you would be writing), and
uses the docker-native tooling to bring everything up with some help from
juju.

There are even more complex examples, such as Kubernetes - all being
brought up and controlled in a similar manner

https://github.com/kubernetes/kubernetes/tree/master/cluster/juju
https://jujucharms.com/u/containers/kubernetes-core

If you need any help charming with Docker you can get in touch with myself
on the mailing list here, or join us on irc in #juju on irc.freenode.net

I'd love to hear any feedback/questions/comments about the developer
tooling we have here, as its really ramped up our capacity to churn out
high quality charms quickly that are docker based, and if there's any rough
edges we can sand out for other developers would be great starting points.

All the best,

Charles

On Tue, May 31, 2016 at 9:41 AM Gayan Gunarathne <csegayan at gmail.com> wrote:

> Hi Marco,
>
> Thanks for the details.
>
> Actually I just want to do something like this. Lets say I have tomcat and
> mysql composite application. So I need to deploy these two application in
> docker with depends on(I am really glad if I can use demo UI[1]). How can I
> do that?
>
> Do you already have charms that run in docker with the same? Can you point
> me to some sample?
>
> [1]https://demo.jujucharms.com/
>
> Thanks,
> Gayan
>
> On Tue, May 31, 2016 at 6:52 PM, Marco Ceppi <marco.ceppi at canonical.com>
> wrote:
>
>> Hi Gayan,
>>
>> I've added the general Juju list which covers more of these general
>> topics.
>>
>> So, because of the nature of LXC machines and Docker style application
>> containers it's hard to model that style application container in Juju in
>> the same way LXC machines work. However, it's quite easy to wrap something
>> like a Docker container, which works really well as a payload/software
>> delivery tool, but then you can use Juju to wrap that immutable object and
>> make it mutable inside of a Juju deployment.
>>
>> I know there are quite a few people on the juju mailing list doing this
>> today, so I'll let them weigh in. In short, yes you can use Docker and
>> docker style application containers with Juju, but not in the same direct
>> way you would a LXC machine just because of the differences in function and
>> form.
>>
>> Marco
>>
>> On Tue, May 31, 2016 at 7:09 AM Gayan Gunarathne <csegayan at gmail.com>
>> wrote:
>>
>>> Hello,
>>>
>>> Can we run docker directly with Juju? I saw Juju is supporting the LXC
>>> containers. I need to know whether we can spawn docker containers as the
>>> same.
>>>
>>> If we support this can you point me to any document?
>>>
>>> Thanks,
>>> Gayan
>>> --
>>> Juju-dev mailing list
>>> Juju-dev at lists.ubuntu.com
>>> Modify settings or unsubscribe at:
>>> https://lists.ubuntu.com/mailman/listinfo/juju-dev
>>>
>>
>
>
> --
> Best Regards,
> Gayan
> --
> Juju-dev mailing list
> Juju-dev at lists.ubuntu.com
> Modify settings or unsubscribe at:
> https://lists.ubuntu.com/mailman/listinfo/juju-dev
>
-- 
Juju Charmer
Canonical Group Ltd.
Ubuntu - Linux for human beings | www.ubuntu.com
Juju - The fastest way to model your service | www.jujucharms.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/juju/attachments/20160531/26f0941f/attachment.html>