On Wed, Jan 22, 2014 at 12:06 AM, Jonathan Aquilina <jaquil...@eagleeyet.net
> wrote:
> I have an interesting scenario which either is already catered for or
> should
> be catered for.
>
> I am currently using a local provider for testing and contribution
> purposes.
>
> I bootstrapped an environment and deployed the juju-gui i then shut down
> the
> computer and powered it on again this morning the bootstrapped environment
> came up just fine yet the instance i created with the juju gui did not
>
> jaquilina@jaquilina-Satellite-S75-A:~/.juju$ juju status
> environment: local
> machines:
> "0":
> agent-state: started
> agent-version: 1.16.5.1
> dns-name: 10.0.3.1
> instance-id: localhost
> series: saucy
> "1":
> agent-state: started
> agent-version: 1.16.5.1
> instance-id: jaquilina-local-machine-1
> instance-state: missing
> series: precise
> services: {}
> jaquilina@jaquilina-Satellite-S75-A:~/.juju$ sudo lxc-ls --fancy
> NAME STATE IPV4 IPV6 AUTOSTART
> --------------------------------------------------------------
> jaquilina-local-machine-1 RUNNING 10.0.3.50 - YES
>
> As can be seen the instance state is missing. I removed the entire
> bootstrapped environment and recreated it again
>
I think you may have hit this bug:
https://bugs.launchpad.net/juju-core/+bug/1237259
The machine is there: agent-state says "started"; instance-state is simply
wrong. Try "sudo juju status".
This bug has been recently fixed, and will be in the next release.
> machines:
> "0":
> agent-state: started
> agent-version: 1.16.5.1
> dns-name: 10.0.3.1
> instance-id: localhost
> series: saucy
> services: {}
>
> Now the scenario is this. This is more for cloud providers as well as those
> hosting private clouds. But what does one do if you have a server which
> fails
> or power cycles itself for one reason or another. How will one bring back
> up
> the instances that were running on it?
>
Assuming your storage is durable, this should not be a problem: the
containers will not disappear. It is possible to export/import bundles via
the GUI, so you also have the option of keeping a backup of your
environment (i.e. a YAML description of the machines, services, units,
relations, etc.); then you can recreate as necessary. This assumes that you
make no manual modifications - this is a requirement for reproducibility.
HTH
Andrew
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