How To Install nova-scheduler on Ubuntu 20.04
Introduction
In this tutorial we learn how to install nova-scheduler
on Ubuntu 20.04.
What is nova-scheduler
nova-scheduler is:
OpenStack is a reliable cloud infrastructure. Its mission is to produce the ubiquitous cloud computing platform that will meet the needs of public and private cloud providers regardless of size, by being simple to implement and massively scalable.
OpenStack Compute, codenamed Nova, is a cloud computing fabric controller. In addition to its “native” API (the OpenStack API), it also supports the Amazon EC2 API.
Nova is intended to be modular and easy to extend and adapt. It supports many different hypervisors (KVM and Xen to name a few), different database backends (SQLite, MySQL, and PostgreSQL, for instance), different types of user databases (LDAP or SQL), etc.
This is the Nova scheduler.
Package: nova-scheduler Architecture: all Version: 2:21.0.0~b3~git2020041013.57ff308d6d-0ubuntu2 Priority: extra Section: net Source: nova Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: Openstack Maintainers [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 60 Depends: python3-nova (= 2:21.0.0~b3~git2020041013.57ff308d6d-0ubuntu2) Filename: pool/main/n/nova/nova-scheduler_21.0.0~b3~git2020041013.57ff308d6d-0ubuntu2_all.deb Size: 6500 MD5sum: b7d22cb696fe33aa5d00fef1cb51d73c SHA1: 24fe98eeb8dfa2c8a4540e0a0046115bb831c352 SHA256: 7fe1035757dfa106dc69ccc7f53b649ebc959ff8b9cc56e56048d14645ce2aeb Homepage: https://launchpad.net/nova Description-en: OpenStack Compute - virtual machine scheduler OpenStack is a reliable cloud infrastructure. Its mission is to produce the ubiquitous cloud computing platform that will meet the needs of public and private cloud providers regardless of size, by being simple to implement and massively scalable.
OpenStack Compute, codenamed Nova, is a cloud computing fabric controller. In addition to its “native” API (the OpenStack API), it also supports the Amazon EC2 API.
Nova is intended to be modular and easy to extend and adapt. It supports many different hypervisors (KVM and Xen to name a few), different database backends (SQLite, MySQL, and PostgreSQL, for instance), different types of user databases (LDAP or SQL), etc.
This is the Nova scheduler.
There are three methods to install nova-scheduler
on Ubuntu 20.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install nova-scheduler Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install nova-scheduler
using apt-get
by running the following command:
sudo apt-get -y install nova-scheduler
Install nova-scheduler Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install nova-scheduler
using apt
by running the following command:
sudo apt -y install nova-scheduler
Install nova-scheduler Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install nova-scheduler
using aptitude
by running the following command:
sudo aptitude -y install nova-scheduler
How To Uninstall nova-scheduler on Ubuntu 20.04
To uninstall only the nova-scheduler
package we can use the following command:
sudo apt-get remove nova-scheduler
Uninstall nova-scheduler And Its Dependencies
To uninstall nova-scheduler
and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove nova-scheduler
Remove nova-scheduler Configurations and Data
To remove nova-scheduler
configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge nova-scheduler
Remove nova-scheduler configuration, data, and all of its dependencies
We can use the following command to remove nova-scheduler
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge nova-scheduler
References
Summary
In this tutorial we learn how to install nova-scheduler
package on Ubuntu 20.04 using different package management tools: apt
, apt-get
and aptitude
.