How To Install flannel on Ubuntu 20.04
Introduction
In this tutorial we learn how to install flannel on Ubuntu 20.04.
What is flannel
flannel is:
Flannel is a virtual network that gives a subnet to each host for use with container runtimes.
Platforms like Google’s Kubernetes assume that each container (pod) has a unique, routable IP inside the cluster. The advantage of this model is that it reduces the complexity of doing port mapping.
There are three methods to install flannel 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 flannel Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install flannel using apt-get by running the following command:
sudo apt-get -y install flannel
Install flannel Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install flannel using apt by running the following command:
sudo apt -y install flannel
Install flannel 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 flannel using aptitude by running the following command:
sudo aptitude -y install flannel
How To Uninstall flannel on Ubuntu 20.04
To uninstall only the flannel package we can use the following command:
sudo apt-get remove flannel
Uninstall flannel And Its Dependencies
To uninstall flannel and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove flannel
Remove flannel Configurations and Data
To remove flannel configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge flannel
Remove flannel configuration, data, and all of its dependencies
We can use the following command to remove flannel configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge flannel
References
Summary
In this tutorial we learn how to install flannel package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
