What is AKS cluster and how different is it from a POD? Is a cluster deployed on the same node?
1 Answers
Hi Sunil,
An AKS cluster is a cluster of nodes, typically control plane nodes (run k8 services and orchestrate app workloads) and worker nodes (run the actual application).
A Pod is a group of containers that are deployed together on the same host.
A node is a worker in K8s and has all the services required to run the pods (can be a VM for example)
https://miro.medium.com/max/1008/1*ySGpvUseuuJiMf9_o5jnTA.png is a good representation of the node/pod difference
If you’re wondering what the difference between a node and pod is, https://medium.com/developerworld/pod-vs-node-in-kubernetes-26c858988f94 explains it well with some nice graphical representations, in short, a pod is a group of one or more application containers, and all pods run on nodes.
TLDR: A cluster is 1 or more nodes, and a node can have 1 or more pods