| Component | Description |
|---|---|
| kube-apiserver | This component exposes Kubernetes API to users allowing them to create API resources, run applications, and configure various parameters of the cluster. |
| Etcd | This is a data store used by Kubernetes to store all information about the cluster. It’s critical for keeping everything up to date. |
| kube-scheduler | This component is responsible for scheduling user workloads on the right infrastructure. When scheduling applications, kube-scheduler considers various factors such as available node resources, node health, and availability, as well as user-defined constraints. |
| kube-controller-manager | The component that manages API objects created by users. It makes sure that the actual state of the cluster always matches the desired state. |
| cloud-controller-manager (opt) | This component embraces various controllers, all of which interact with the cloud providers’ APIs. |
| Component | Description |
|---|---|
| kubelet | The kubelet is the primary “node agent” that runs on each node & manages the containers/pods running on each node |
| Container Runtime | A container runtime is software that executes containers and manages container images on a node. |
| kube-proxy (opt) | kube-proxy is a network proxy that runs on each node in your cluster. kube-proxy maintains network rules on nodes. These network rules allow network communication to your Pods from network sessions inside or outside of your cluster. |
Note
Sets up the latest kubernetes version:
install-kubernetes-with-kops-on-amzn-ec2
upgrade-kubernetes-with-kops-on-amzn-ec2