Install dive on Ubuntu 20.04

The dive is a command line tool for analyzing a Docker image. This tool shows image contents broken down by layer. It can used to explore image structure in order to minimize size of Docker image.

This tutorial explains how to install dive on Ubuntu 20.04.

Prepare environment

Make sure you have installed Docker in your system. You can read post how to install it.

Install dive

Execute the following command to get the latest version tag of dive release. Assign version tag to variable.

DIVE_VERSION=$(curl -s "https://api.github.com/repos/wagoodman/dive/releases/latest" | grep -Po '"tag_name": "v\K[0-9.]+')

Next, download Debian package (.deb) from releases page of the dive repository:

curl -Lo dive.deb "https://github.com/wagoodman/dive/releases/latest/download/dive_${DIVE_VERSION}_linux_amd64.deb"

Install dive:

sudo apt install -y ./dive.deb

Once installation is completed, we can check dive version:

dive --version

Remove unneeded .deb file:

rm -rf dive.deb

Testing dive

Run the dive command and provide name of the Docker image as argument. For example, the following command allows to analyze ubuntu image:

dive ubuntu

Press CTRL+C, to exit dive.

Uninstall dive

If dive is no longer needed, you can remove it using the following command:

sudo apt purge --autoremove -y dive