Docker and services

Objectives

1. What's Docker?

   #1
2. Docker images & containers

   #2
3. .dockerignore file

   #3
4. Dockerfile

   #4
5. Compose.yml file: base, dev, prod

   #5
6. Django service: web

   #6
7. PostgreSQL service: db

   #7
8. Persistent PostgreSQL volume

   #8
9. .env

   #9
10. Docker commands: ps, images, run, start, stop, restart, pull, rm

    #10
11. Make commands: migrate, collectstatic

    #11
12. Shell commands inside containers

    #12