How To Install rootlesskit on Ubuntu
Posted on April 1, 2023 (Last modified on May 20, 2023 )
2 minutes • 394 words
Introduction
In this tutorial we learn how to install rootlesskit on Ubuntu.
What is rootlesskit
rootlesskit is:
The purpose of RootlessKit is to run Docker and Kubernetes as an unprivileged user (known as “Rootless mode”), so as to protect the real root on the host from potential container-breakout attacks.
RootlessKit creates user_namespaces(7) and mount_namespaces(7), and executes newuidmap(1)/newgidmap(1) along with subuid(5) and subgid(5).
RootlessKit also supports isolating network_namespaces(7) with userspace NAT using “slirp”.
This Debian package doesn’t support vpnkit mode.
On Debian system, kernel.unprivileged_userns_clone should be enabled.
There are three methods to install rootlesskit on Ubuntu. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install rootlesskit Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install rootlesskit using apt-get by running the following command:
sudo apt-get -y install rootlesskit
Install rootlesskit Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install rootlesskit using apt by running the following command:
sudo apt -y install rootlesskit
Install rootlesskit 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 rootlesskit using aptitude by running the following command:
sudo aptitude -y install rootlesskit
How To Uninstall rootlesskit on Ubuntu
To uninstall only the rootlesskit package we can use the following command:
sudo apt-get remove rootlesskit
Uninstall rootlesskit And Its Dependencies
To uninstall rootlesskit and its dependencies that are no longer needed by Ubuntu, we can use the command below:
sudo apt-get -y autoremove rootlesskit
Remove rootlesskit Configurations and Data
To remove rootlesskit configuration and data from Ubuntu we can use the following command:
sudo apt-get -y purge rootlesskit
Remove rootlesskit configuration, data, and all of its dependencies
We can use the following command to remove rootlesskit configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge rootlesskit
Dependencies
rootlesskit have the following dependencies:
References
Summary
In this tutorial we learn how to install rootlesskit package on Ubuntu using different package management tools: apt, apt-get and aptitude.