az cli docker images uses outdated python image

[StefanSchoof]

This is autogenerated. Please review and update as needed.

Describe the bug

The azure cli docker image uses the image version 3.6.10, see
https://github.com/Azure/azure-cli/blob/dev/Dockerfile#L6
but the offical python docker image no longer supports 3.6.10 only 3.6.12 has a supported image, see https://hub.docker.com/_/python

With this old base image, the image may contain insecure libs.

To Reproduce:

n/a

Expected Behavior

The azure cli docker image always uses a supported base image.

Environment Summary

Linux-4.19.128-microsoft-standard-x86_64-with
Python 3.6.10
Installer: DOCKER

azure-cli 2.18.0

Additional Context

[yungezz]

hi @fengzhou-msft let's plan it accordingly.

[StefanSchoof]

@fengzhou-msft @yungezz Do you have now a process to keep the python version up to date with a supported version or will this happen in few months again?

[fengzhou-msft]

We don't have a process to automatically update the python version yet.

[StefanSchoof]

Okay, thanks for the info. Then I will create a issue of I spot this again