Tl;dr how did my single server infrastructure become a resilient, cloud-agnostic, auto scalable and auto-healing infrastructure (architecture, culture and methodology wise)

The idea is to take an example of a new startup created. In the early days, everything works on a very simple infra, one server, updated by 1 person from his personal laptop. The success of the startup will make organisational, architecture and infrastructure needs evolve: multiple developers, CI/CD pipeline, resiliency, multi-environment. Then to scale, to have different life cycles and to optimise resources we will introduce containers and the need for an orchestrator (like kubernetes and swarm). We will unravel what it means from the methodology, culture and team perspective: what are the new roles needed at each step, how devs are becoming more ops and how ops are becoming more dev, etc.