[vilunov]

Kubernetes is absolutely not an accidental complexity. Microservices are not an accidental complexity, and they are not a replacement for a proper repository.

Kubernetes solves administration of a cluster of Linux machines, as opposed to administering a single Linux machine. It abstracts away the concept of a machine, because it automates application scheduling, scaling across different machines, rolling updates of applications, adding/removing machines to the cluster all at the same time. There are no instruments like that for applications, the closest to them are something like Spark and Hadoop for data engineering tasks (not general applications).

Microservices are also used to solve a very specific problem – independent deployments of parts of the system. You can dance with your repository and your code directories as much as you want, if you're not in a very specific runtime (e.g. BEAM VM), you will not achieve independent deployments of parts of your service. The ability to "scale independently" (which tbh is mostly bullshit) is an accidental consequence of using HTTP RPC for microservice communication, which is also not the only way, but it allows reuse of the HTTP ecosystem.