Fail to deploy the LMA toolchain in an environment with virt nodes

[Simon Pasquier]

Steps to reproduce
------------------

- install the LMA plugins on the Fuel node
- Follow the instructions [1] to deploy an environment with virt nodes and enable the LMA plugins with their default configuration (eg Elasticsearch, InfluxDB and Nagios deployed locally).

[1] https://docs.mirantis.com/openstack/fuel/fuel-8.0/operations.html#using-the-reduced-footprint-feature

Actual result
-------------

The deployment fails because there's no node with the Elasticsearch/Kibana role.

Expected result
---------------

The deployment should be successful.

Workaround
----------

- Enable only the LMA collector plugin in the first environment and configure it to send data to remote servers using fake names (eg elasticsearch-node, influxdb-node, alerting-node).
- Deploy the first environment with only the virt node(s).
- Provision the virtual machines as usual.
- Create a second environment using the virtual machines and enable all the LMA plugins.
- Once the second environment is deployed, edit /etc/hosts on the virt node(s) and add the proper IP addresses for elasticsearch-node, influxdb-node and alerting-node
- Restart the collectors on the virt node(s).

[Marcin Iwinski (iwi)]

The deployment failed during VM provisioning because the plugins were also executed in post-deployment during VM creation.

[Dmitry Pyzhov (dpyzhov)]

Please explain how does it relate to Fuel engine.

[Simon Pasquier (simon-pasquier)]

I'm not sure why Dmitry K. added Fuel project. For now it's only an issue related to the StackLight plugins I've marked the bug as invalid for Fuel.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/318190

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/318190
Committed: https://git.openstack.org/cgit/openstack/fuel-plugin-lma-collector/commit/?id=debe1883d702b528cdf618d65b31f97a0f59556f
Submitter: Jenkins
Branch: master

commit debe1883d702b528cdf618d65b31f97a0f59556f
Author: Swann Croiset <email address hidden>
Date: Wed May 18 17:31:07 2016 +0200

    Allow deployment without InfluxDB and Elasticsearch

    This allows to support several deployment scenarii where backends are not
    deployed initialy, for instance when using the 'virt' nodes to deploy
    LMA backends.

    The patch factorizes manifests by moving all the configuration data of
    InfluxDB and Elasticsearch into hiera.

    DocImpact

    Fixes-bug: #1570386
    Change-Id: I8688bbd10d88bc8ef68b5d31e9edd62a764dc23d

[Ksenia Svechnikova (kdemina)]

There is a duplicate customer-found bug for 7.0: https://bugs.launchpad.net/lma-toolchain/+bug/1602939, please backport the fix

[Dmitry Klenov (dklenov)]

Removing Fuel per Simon Pasquier's comment.