[SOLVED] Dockerfile from ubuntu:22.04 apt unable to locate package python3

Issue

When I docker build this:

FROM ubuntu:22.04
RUN apt-get install -y python3

I get

Step 1/2 : FROM ubuntu:22.04
 ---> c6b84b685f35
Step 2/2 : RUN apt-get install -y python3
 ---> Running in d1f4eff8d024
Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package python3

What's wrong?

Solution

First run apt-get upgrade then you can install python packages.

Here is an example:

FROM ubuntu:22.04
RUN apt-get upgrade
RUN apt-get install -y python3

PS:

i don't know about you motivation to use Ubuntu image but may you consider about use Alpine image

Answered By - Kafarson

Answer Checked By - Robin (WPSolving Admin)