Juju on CloudStack

[Herman Bergwerf]

Your documentation is really helpful! I'll consider to build a basic
CloudStack provider when I have some time.

Op ma 21 sep. 2015 om 06:03 schreef Andrew Wilkins <
andrew.wilkins at canonical.com>:

> On Mon, Sep 21, 2015 at 5:53 AM Herman Bergwerf <hermanbergwerf at gmail.com>
> wrote:
>
>> I find it quite difficult to understand the semantics of a general juju
>> provider (so far juju/environs helped a bit to understand the general
>> principle). Is there a place where I can find what I need to write a very
>> minimal provider? I don't really have experience with juju, cloudstack or
>> cloud computing so I'm not sure if I'm the right person to write a
>> cloudstack integration for juju. I think I'll start using juju on a manual
>> cluster first or write the integration like
>> https://github.com/kapilt/juju-digitalocean (I'm not sure how this code
>> integrates with juju, is it just a wrapper around the juju cli?)
>>
>
> Hi Herman,
>
> In case you change you later want to write a fully integrated provider,
> I've just written some notes about implementing a provider here:
> https://github.com/juju/juju/wiki/Implementing-environment-providers. If
> you're interested, take a look and let me know if that helps, and what
> you're still unclear on.
>
> The approach I would take is:
>  1. Implement EnvironProvider and configuration handling first
>  2. Implement Environ and Instance, in the following order:
>      a. StartInstance
>      b. Bootstrap (probably just call common.Bootstrap)
>      c. Destroy (probably just call common.Destroy)
>      d Instances and StateServerInstances
>      e. the rest; no-ops for the firewall-related (*Ports) methods for an
> MVP
>
> I'm working on a new Azure provider at the moment, so you can find a
> fairly minimal environment implementation here:
> https://github.com/axw/juju/tree/d921824ddd7064327c8eab884ecc2e303e9097f0/provider/azure
> <https://github.com/axw/juju/tree/azure-next/provider/azure>. It's not
> pretty, but it bootstraps.
>
> Cheers,
> Andrew
>
> Op za 19 sep. 2015 om 13:44 schreef Nate Finch <nate.finch at canonical.com>:
>>
>>> Definitely look at the GCE provider, it's the newest and uses our
>>> current best practices. Some of the older providers are not quite as good
>>> examples (not that they're wrong, we've just figured out better ways to do
>>> structure the code).
>>>
>>> On Sat, Sep 19, 2015, 6:01 AM Mark Shuttleworth <mark at ubuntu.com> wrote:
>>>
>>>> On 18/09/15 17:27, Herman Bergwerf wrote:
>>>> > Hmm, ok. I'm quite surprised a pretty widely used virtualization
>>>> stack such
>>>> > as cloudstack is not implemented in juju at all. Are there maybe
>>>> future
>>>> > plans to do this?
>>>>
>>>> Anybody can write a cloud provider and contribute it to Juju. Canonical
>>>> will usually write one as part of the certification process for a large
>>>> public cloud (like AWS, Google, Azure) but I'm not aware of any large
>>>> CloudStack clouds so it's not on our roadmap. Of course we'd gladly land
>>>> the work if someone else does it.
>>>>
>>>> > By the way, wouldn't it be easier to write a provider directly inside
>>>> the
>>>> > juju code? I'm not sure if there is any documentation to do this.
>>>>
>>>> Yes, a "proper" provider is built-in to juju-core and lives in the Go
>>>> code of Juju itself.
>>>>
>>>> As a limited workaround, you can use the Juju client plugin mechanism to
>>>> automate some of the "manual" provider work. Essentially, you use your
>>>> local cloud tools to launch machines, then register them with Juju
>>>> controller using the manual provider mechanisms. If you want to dig into
>>>> Go programming, then a cloudstack provider would be a good project. You
>>>> would be copying the structure of the OpenStack, GCE, Azure, or AWS
>>>> provider, then using the cloudstack operations to do what's necessary
>>>> there. A main question would be whether or not their is already an
>>>> implementation of the cloudstack API in Go.
>>>>
>>>> Mark
>>>>
>>>>
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