Introduction to containerization and container orchestration
Containers provide processes isolation, meaning they run in an isolated space. They also provide effective control of I/O resources in a manner that is kind of like a sub-operating system hosted by an existing operating system with virtual boundaries.
The operating system that is hosting the container(s) can either be running on a physical machine or itself inside a virtual machine.
A container is an isolated place that is virtually boundary-walled using the process and namespace isolation technology provided by the host operating system so that an application running inside the container runs without affecting the rest of the system outside the container boundary.
The idea behind this kind of virtual environment was initially proposed by a MIPT professor in 1999. This was basically an improvement on the chroot model having three main components:
- Groups of processes isolated by namespaces
- A filesystem...
