cdalvaro/docker-salt-master 3003

on GitHub

The following changes are only related with the docker image.
Please refer to the Salt 3003 Release Notes for the full list of changes.

• Upgrade salt-master to 3003 Aluminium
• Add python3 timelib 0.2.5
• Change Docker base image to ubuntu:focal-20210325
• Replace m2crypto by pycryptodome (see saltstack/salt#56625)
• Add documentation for Custom Configuration and how to automatically accept minion keys
• Reduce image size by removing build packages