Kubernetes components

By anuj – Posted on

Master aka Control Plane

  1. API Server
  2. Cluster Store (Store State)
  3. Scheduler
  4. Controller Manager
  5. Kubectl (CLI) interacts with the API Server

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API Server

Cluster Store

Scheduler – Pod Affinity (two pods always stay on same node) and Anti-Affinity (2 Pods can NEVER be on same node)

Controller Manager

  1. Controller Loops
  2. Desired State – watch and update the API server
  3. ReplicaSet Controller

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Pod Operations

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Services

Front Ends the Backend cluster. E.g. Http Service is the front end for a cluster of web servers

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