How to properly replace Docker containers after deployment?

Question

Docker

I want to try to set up a server where Docker + Traefik will be installed .
Traefik looks at port 80 and resolves subdomains and domains.

But the question arose: how to replace a running container after deployment?
For example: I changed something in it, updated it or something else.
I would be grateful if you tell me which cases you use. If you resolve not with the help of Traefik, but with something else. CI can teach anything, I want to understand how to do it right.

Answer 1

Zero Downtime Deployments - Docker + Traefik.
https://coderbook.com/@marcus/how-to-do-zero-downt...
Swarm Zero Downtime Updates
https://www.youtube.com/watch?v=dLBGoaMz7dQ
Alternatively - Kubernetes Rolling Update Strategy

Answer 2

A new container is raised, traffic is transferred to it, the old container is stopped.
In kubernetes and openshift, there are ready-made tools for this.