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clusterapi.go
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clusterapi.go
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package controller
import (
"context"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/types"
clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1"
controlplanev1 "sigs.k8s.io/cluster-api/controlplane/kubeadm/api/v1beta1"
"sigs.k8s.io/controller-runtime/pkg/client"
anywherev1 "github.com/aws/eks-anywhere/pkg/api/v1alpha1"
"github.com/aws/eks-anywhere/pkg/clusterapi"
"github.com/aws/eks-anywhere/pkg/constants"
)
// GetCAPICluster reads a cluster-api Cluster for an eks-a cluster using a kube client
// If the CAPI cluster is not found, the method returns (nil, nil).
func GetCAPICluster(ctx context.Context, client client.Client, cluster *anywherev1.Cluster) (*clusterv1.Cluster, error) {
capiClusterName := clusterapi.ClusterName(cluster)
capiCluster := &clusterv1.Cluster{}
key := types.NamespacedName{Namespace: constants.EksaSystemNamespace, Name: capiClusterName}
err := client.Get(ctx, key, capiCluster)
if apierrors.IsNotFound(err) {
return nil, nil
}
if err != nil {
return nil, err
}
return capiCluster, nil
}
// CapiClusterObjectKey generates an ObjectKey for the CAPI cluster owned by
// the provided eks-a cluster.
func CapiClusterObjectKey(cluster *anywherev1.Cluster) client.ObjectKey {
// TODO: we should consider storing a reference to the CAPI cluster in the eksa cluster status
return client.ObjectKey{
Name: clusterapi.ClusterName(cluster),
Namespace: constants.EksaSystemNamespace,
}
}
// GetKubeadmControlPlane reads a cluster-api KubeadmControlPlane for an eks-a cluster using a kube client
// If the KubeadmControlPlane is not found, the method returns (nil, nil).
func GetKubeadmControlPlane(ctx context.Context, client client.Client, cluster *anywherev1.Cluster) (*controlplanev1.KubeadmControlPlane, error) {
kubeadmControlPlane, err := KubeadmControlPlane(ctx, client, cluster)
if apierrors.IsNotFound(err) {
return nil, nil
}
if err != nil {
return nil, err
}
return kubeadmControlPlane, nil
}
// KubeadmControlPlane reads a cluster-api KubeadmControlPlane for an eks-a cluster using a kube client.
func KubeadmControlPlane(ctx context.Context, client client.Client, cluster *anywherev1.Cluster) (*controlplanev1.KubeadmControlPlane, error) {
kubeadmControlPlane := &controlplanev1.KubeadmControlPlane{}
if err := client.Get(ctx, CAPIKubeadmControlPlaneKey(cluster), kubeadmControlPlane); err != nil {
return nil, err
}
return kubeadmControlPlane, nil
}
// CAPIKubeadmControlPlaneKey generates an ObjectKey for the CAPI Kubeadm control plane owned by
// the provided eks-a cluster.
func CAPIKubeadmControlPlaneKey(cluster *anywherev1.Cluster) client.ObjectKey {
return client.ObjectKey{
Name: clusterapi.KubeadmControlPlaneName(cluster),
Namespace: constants.EksaSystemNamespace,
}
}
// GetMachineDeployment reads a cluster-api MachineDeployment for an eks-a cluster using a kube client.
// If the MachineDeployment is not found, the method returns (nil, nil).
func GetMachineDeployment(ctx context.Context, client client.Client, machineDeploymentName string) (*clusterv1.MachineDeployment, error) {
machineDeployment := &clusterv1.MachineDeployment{}
key := types.NamespacedName{Namespace: constants.EksaSystemNamespace, Name: machineDeploymentName}
err := client.Get(ctx, key, machineDeployment)
if apierrors.IsNotFound(err) {
return nil, nil
}
if err != nil {
return nil, err
}
return machineDeployment, nil
}
// GetMachineDeployments reads all of cluster-api MachineDeployment for an eks-a cluster using a kube client.
func GetMachineDeployments(ctx context.Context, c client.Client, cluster *anywherev1.Cluster) ([]clusterv1.MachineDeployment, error) {
machineDeployments := &clusterv1.MachineDeploymentList{}
err := c.List(ctx, machineDeployments, client.MatchingLabels{clusterv1.ClusterNameLabel: cluster.Name}, client.InNamespace(constants.EksaSystemNamespace))
if err != nil {
return nil, err
}
return machineDeployments.Items, nil
}