Chapter 3 · Kubernetes School

Meet the School Buildings

Classrooms need a building to sit in.

A classroom cannot float in the sky by itself.

It needs walls, floors, power, and space.

In our computer story, each school building is called a node.

A node is a computer that can hold pods.

Just like a building can hold many classrooms, a node can hold many pods.

So:

the node

is the

school building

(a computer)

the pod

is the

classroom inside

The principal does not teach in every classroom.

The principal decides which building each classroom should open in.

If one building gets too full, the principal can open a new classroom in another building.

If a building has a problem, the classrooms inside it may need to move.

The principal watches the buildings too.

What matters is that the lessons keep running.

The buildings are there to give the classrooms a place to live.

In chapter 2, we met the classrooms (pods).

In chapter 1, we asked for three maths classrooms.

Those classrooms lived inside school buildings (nodes).

And our digital school is only getting started.