Worker Nodes

Functions

  • Worker nodes is the location where your apps operate

  • Communication between master and worker nodes is via kubelet process

  • Docker along with kubelet works together on worker nodes to run containers on node

Kube-proxy

  • Network proxy/load balancer on single worker node

  • Handles network routing for TCP/UDP packets

  • Connection forwarding

Pod

  • Pod is smallest unit of deployment in Kubernetes

  • Containers in a pod are tightly coupled and share storage, linux namespaces, IP addresses etc.

Post Scheduling

  • Once pods are scheduled and running

    • kubelet process checks health

    • Kube-proxy routes packets from communicating processes

  • Worker nodes are exposed to the internet and traffic coming in is handled via kube-proxy

  • User thus communicates with the Kube app

Previousetcd and kubectlNextNodes

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