Main concepts

Question 1

Key Concept:
Virtualization vs. Containerization

Answer 1

Virtualization (or VMs) is the isolation of machines.
Containerization is the isolation of processes.

Question 2

2 Main Linux terminal features for containerization

Answer 2

Namespaces: allows customization, and the appearance that each instance of the container has its own OS.

Control groups: used to make sure we’re limiting the amount of resources each container can is accessing to avoid taxing the system.

Question 3

infinite flexibility vs. infinite portability

Answer 3

infinite flexibility (Virualization): we can define the number of processes, amount of RAM, amount of HD memory etc. that each VM can have.

Infinite portability (Containerization): container is defined in a single Docker file. The file says how to build and run our container and what libraries are needed. The file can be stored in a repository and used on any machine to spin up our application.