Juju deploy a model, MAAS node status

[Dmitrii Shcherbakov]

Hi Wahi,

> Do I need to add machines from Juju GUI before deploying models ?

No need for that (see also https://bugs.launchpad.net/juju-core/+bug/1567169
)

# deploy on any 'Ready' machine available in a pool
juju deploy mysql

# you already have a model with a machine 0 and you want to deploy there
juju deploy mysql --to 0

# give me a new machine and create a container on it
juju deploy mysql --to lxd

# deploy to a *new* container on machine 0
juju deploy mysql --to lxd:0

# deploy to an *existing* container lxd:1 on machine 20
juju deploy mysql --to 20/lxd/1

You can also use constraints (including tags, availability zones or other
machine properties) to deploy with different criteria for machines:
https://jujucharms.com/docs/stable/reference-constraints

NOTE: --to overrides any constraints you specify

> I tried to deploy a simple mariadb with --to option in order to specify
the n ode name but Juju didn't managed to boot the machine, so on MAAS do I
need to have node with Ready state with no OS on it ?

Yes, you need a node in the "Ready" state in order to allocate a new one
via Juju.

maas maas machines read hostname=obambo | jq '.[].status_name'
"Ready"

juju deploy ubuntu --to obambo.maas


Located charm "cs:ubuntu-10".
Deploying charm "cs:ubuntu-10".

maas maas machines read hostname=obambo | jq '.[].status_name'
"Deploying"

> When I tried only juju deploy mariadb I am getting this:

Not sure if you have any "Ready" nodes. If you don't, that makes sense.

Also, I hope you are using the latest versions of both Juju and MAAS - not
the ones that come in the main repo:

https://jujucharms.com/docs/2.2/reference-install
https://docs.ubuntu.com/maas/2.2/en/installconfig-package-install

I hope that helps.

Best Regards,
Dmitrii Shcherbakov

Field Software Engineer
IRC (freenode): Dmitrii-Sh

On Mon, Aug 7, 2017 at 12:23 PM, wahi <wahi at sci.am> wrote:

> Dear all,
>
> I create a MAAS-JUJU environment with two servers, all services (except
> MAAS installed on bare metal) are KVM virtual machines. I installed Juju
> client in a separate virtual machine, then I used it to bootstrap Juju
> controller on another virtual machine with public IP and everything is
> working fine.
>
> My question is:
>
>    - Do I need to add machines from Juju GUI before deploying models ?
>    - I tried to deploy a simple mariadb with --to option in order to
>    specify the n ode name but Juju didn't managed to boot the machine, so on
>    MAAS do I need to have node with Ready state with no OS on it ?
>    - When I tried only juju deploy mariadb I am getting this:
>
> Machine  State    DNS  Inst id  Series  AZ  Message
> 2        pending       pending  trusty      failed to start instance
> (cannot run instances: cannot run instance: No available machine matches
> constraints: [('agent_name', ['af259ce2-9cb8-460b-8562-dd4223868f95']),
> ('zone', ['default'])] (resolved to "zone=default")), retrying in 10s (9
> more attempts)
>
> So could you please advice me how to have the best approach for this.
>
> Thank you very much in advance.
>
> Regards,
>  Wahi
>
>
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