[openstack-dev] [Fuel][Plugins] question on the is_hotpluggable feature

Evgeniy L eli at mirantis.com
Fri Feb 5 10:07:46 UTC 2016

Hi Simon,

As far as I know it's expected behaviour (at least for the current
release), and it's expected that user reruns deployment on required nodes
using fuel cli, in order to install plugin on a live environment.
It depends on specific role, but "update_required" field may help you, it
can be added to role description, Fuel reruns deployment on nodes with
roles, which are specified in the list, if new node with the role is added
to the environment.



On Fri, Feb 5, 2016 at 12:53 PM, Simon Pasquier <spasquier at mirantis.com>

> Hi,
> I'm testing the ability to install Fuel plugins in a an environment that
> is already deployed.
> My starting environment is quite simple: 1 controller + 1 compute. After
> the initial deployment, I've installed the 4 LMA plugins:
> - LMA collector
> - Elasticsearch-Kibana [*]
> - InfluxDB-Grafana [*]
> - Infrastructure Alerting [*]
> [*] adds a new role
> Of course, all plugins have "is_hotpluggable: true" in their metadata
> definition.
> My expectation is that I can add a new node with the new roles and that
> the LMA collector tasks are executed for all 3 nodes. So I've added the new
> node and click the "Deploy changes" button. My re-deployment runs fine but
> I notice that the plugins aren't installed on the existing nodes (eg
> /etc/fuel/plugins/...) so there is no way that the plugins tasks can be
> executed on already deployed nodes... Is this a known limitation? Am I
> missing something?
> Best regards,
> Simon
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