Use Ubuntu as a persistent environment

Install the package once:

cpak install github.com/containerpak/ubuntu

Create an environment and open Bash:

cpak environment create --name Ubuntu --origin github.com/containerpak/ubuntu
cpak environment shell --environment Ubuntu --command /bin/bash

The shell runs as root inside the environment, so Ubuntu packages can be installed normally:

apt update
apt install git build-essential

Persistent storage

Installed packages, system configuration and the private home directory remain available after the shell closes or the environment stops. Host files, desktop services and devices stay unavailable unless you grant them through the environment settings.

Manage the environment

cpak environment list
cpak environment inspect --environment Ubuntu
cpak environment processes --environment Ubuntu
cpak environment stop --environment Ubuntu

Deleting the environment also deletes its installed packages, system changes and private home:

cpak environment delete --environment Ubuntu