- you can run Docker containers without Docker
- runC can run containers... but it doesn't have overlayfs
- but overlay filesystems are important!
- rkt has overlay filesystem support.
- you need to start & supervise the containers! You can use any regular process supervisor to do that.
- also you need to tell your computers which containers to run
- software around the OCI standard is evolving but it's not there yet
As far as I can tell running containers without using Docker or Kubernetes or anything is totally possible today, but no matter what tools you use it’s definitely not as simple as "just run a container". Either way going through all these steps helps me understand what the actual components of running a container are and what all these different pieces of software are trying to do.
This landscape is pretty confusing but I think it’s not impossible to understand! There are only a finite number of different pieces of software to figure out the role of :)"
'via Blog this'
