A container cluster typically has one or more nodes. When it comes to clusters, it is often the case in most cluster-based frameworks that they have master-slave architecture. These are the worker machines that run your containerized applications and other workloads. When you create a cluster, Compute Engine VM instances are the individual machines that Kubernetes Engine creates on your behalf.
Each node's self-reported update status is sent to the master. Opting for some manual control over the node life cycle is one option, or you can let Kubernetes Engine perform automatic repairs and automatic upgrades on your cluster's nodes—you have that freedom.
The Docker runtime and the Kubernetes node agent (kubelet) are part of node. The ...
