[LMA] the installation of the collectd package fails when the node has no Internet connectivity

[Simon Pasquier]

Tested with MOS 7.0 RC2.

It happens sometimes that the compute nodes have no Internet connectivity (this is a separate bug to be filled in Fuel). The end result for the LMA collector is that the installation of the collectd package because it tries to install the recommended dependencies [1] which aren't included in the plugin package.

We need to make sure that:
1/ the list of dependencies that are required to install collectd is reduced to the minimum (eg do not install the recommended packages).
2/ all dependent packages are embedded in the plugin package.

[1] http://paste.openstack.org/show/454632/

[guillaume thouvenin (guillaume-thouvenin)]

Two comments:
- We will start with a minimal list like this: collectd-core, libdbi1, librrd4, collectd
- We need to prevent apt-get to install recommended packages. So we maybe need to add a task in our plugin that configure apt to not install recommended packages. For example create a file /etc/apt/apt.conf.d/99norecommands that contains:

APT::Install-Suggests "0";
APT::Install-Recommends "0";

[Simon Pasquier (simon-pasquier)]

FWIW I can only reproduce the bug when deploying environments with one controller. Any deployment with 3 or more controllers succeeds.

[guillaume thouvenin (guillaume-thouvenin)]

I will use fuel-createmirror to check. So we will not access to internet and we will embed all needed packages into the plugin.

[guillaume thouvenin (guillaume-thouvenin)]

Fix proposed here: https://review.openstack.org/#/c/223964/