lsb_release: command not found in latest Ubuntu Docker container

I just wanted to test something out real quick. So I ran a docker container and I wanted to check which version I was running:

$ docker run -it ubuntu    
root@471bdb08b11a:/# lsb_release -a
bash: lsb_release: command not found
root@471bdb08b11a:/# 

So I tried installing it (as suggested here):

root@471bdb08b11a:/# apt install lsb_release
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package lsb_release
root@471bdb08b11a:/# 

Anybody any idea why this isn’t working?

Answer

It seems lsb_release is not installed.

You can install it via:

apt-get update && apt-get install -y lsb-release && apt-get clean all