Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nova -- A rainbow cloud over the Alps   A pooled and shared on-demand Infrastructure as a Service (IaaS), based on
the Openstack software suite, was rolled out on the Grenoble university campus
in 2018 and updated in 2019.We present the methods used to deploy and manage
the infrastructure: racadm and preseed for basic system installation, then
Kolla for Openstack deployment. This latter solution, based on containers for
each service, enables a centralised and logged configuration (GitLab) of
controllers and calculation nodes. The solution is the benchmark solution for a
reproducible deployment of Openstack. We have been able to expand our cloud
easily with new nodes. The change in version of the basic OS was also
successfully tested despite a few small hitches... As security is a key element
in the proper operation of this type of shared service, each project has been
made watertight and its data perfectly isolated from other projects, thanks to
the encryption of all network flows in VXLANs.This OpenStack infotainment
platform is operational. What is it all for? For example, our first users use
the Jupyter Notebook through the provision of Jupyterhub servers (web portal);
the Distributed Health Assessment IT System (SIDES project); the continuous
integration in connection with the GitLab platform; the test for the Kubernetes
container scheduler or the calculation and visualisation software, etc. Highly
varied uses that other platforms had difficulty offering.Nova, a new platform,
was born.

5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom