Dockerfile FROM

Definition:

• Set the base image, from docker hub
• A valid Dockerfile must start with a FROM instruction
  • except for Dockerfile ARG
• Can have multiple FROM to build multiple images

• FROM [--platform=<platform>] <image> [AS <name>]
  Or
  FROM [--platform=<platform>] <image>[:<tag>] [AS <name>]
  Or
  FROM [--platform=<platform>] <image>[@<digest>] [AS <name>]

• The image can be any valid image.
  • FROM python:3.7