This article will provide you with a brief introduction of Kubernetes, its Architecture & in the end the big picture on how all the components looks like when put together.
First things first, The most basic deployment of Kubernetes will comprise of:
A] The Controller node
B] The Worker nodes (minimum of two)
NOTE: The above recommendation is for basic ‘get to know’ basis. In real world scenario, the user can have as many Controller nodes(3 recommended) & maximum of 5000 Worker nodes.