AWS Cluster¶
When deploying a kubernetes cluster under AWS must define the following sections under the cluster resource
Kubernetes cluster definition (spec.infrastructureRef)¶
In spec.infrastructureRef we can use a self managed cluster (AWSCluster) or eks cluster (AWSManagedCluster). This table shows the aws provider resources that can be called here
| EKS | Self managed | |
|---|---|---|
| Resource | AWSManagedCluster | AWSCluster |
| Template | AWSManagedClusterTemplate | AWSClusterTemplate |
It is a lightweight wrapper that delegates most configuration to AWSManagedControlPlane.
Control plane definition (spec.controlPlaneRef)¶
-
In EKS we must use a AWSManagedControlPlane resource. Its template is AWSManagedControlPlaneTemplate
-
When we want a a self managed control plane, the resource will depend of the chosen controlplane provider, for example, a KubeadmControlPlane resource if using kubeadm provider.
This is a more complex resource that permits to configure:
- credentials to authenticate against aws
- basic stuff like cluster name, kubernetes version, aws region
- network: vpc, subnets
- api access: endpoint access, authentication mode,...
- k8s settings: upgrade policy, addons, imagelookup