October 2019
Intermediate to advanced
520 pages
13h 5m
English
Content preview from Professional Cloud Architect – Google Cloud Certification Guide
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Worker nodes
A worker node can be a virtual machine or even a physical server. In the case of GKE, it is a virtual machine instance. Worker nodes are responsible for running containerized applications. Worker nodes are managed by the master node. They run the following services:
- Kubelet: This reads the Pod specification and makes sure the right containers run in the Pods. It interacts directly with the master node.
- Kube-proxy: This is a network proxy running on each node. It enables the usage of services (we will learn about services shortly).
- Container runtime: This is responsible for running containers. Kubernetes supports multiple runtimes but in the case of GKE, Docker is used.
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