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reconciler.go
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reconciler.go
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package reconciler
import (
"context"
"fmt"
"reflect"
"github.com/go-logr/logr"
"github.com/nutanix-cloud-native/prism-go-client/environment/credentials"
apiv1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"sigs.k8s.io/controller-runtime/pkg/client"
anywherev1 "github.com/aws/eks-anywhere/pkg/api/v1alpha1"
"github.com/aws/eks-anywhere/pkg/cluster"
"github.com/aws/eks-anywhere/pkg/constants"
"github.com/aws/eks-anywhere/pkg/controller"
"github.com/aws/eks-anywhere/pkg/controller/clientutil"
"github.com/aws/eks-anywhere/pkg/controller/clusters"
"github.com/aws/eks-anywhere/pkg/controller/serverside"
"github.com/aws/eks-anywhere/pkg/providers/nutanix"
)
// CNIReconciler is an interface for reconciling CNI in the Tinkerbell cluster reconciler.
type CNIReconciler interface {
Reconcile(ctx context.Context, logger logr.Logger, client client.Client, spec *cluster.Spec) (controller.Result, error)
}
// RemoteClientRegistry is an interface that defines methods for remote clients.
type RemoteClientRegistry interface {
GetClient(ctx context.Context, cluster client.ObjectKey) (client.Client, error)
}
// IPValidator is an interface that defines methods to validate the control plane IP.
type IPValidator interface {
ValidateControlPlaneIP(ctx context.Context, log logr.Logger, spec *cluster.Spec) (controller.Result, error)
}
// Reconciler reconciles a Nutanix cluster.
type Reconciler struct {
client client.Client
validator *nutanix.Validator
cniReconciler CNIReconciler
remoteClientRegistry RemoteClientRegistry
ipValidator IPValidator
*serverside.ObjectApplier
}
// New defines a new Nutanix reconciler.
func New(client client.Client, validator *nutanix.Validator, cniReconciler CNIReconciler, registry RemoteClientRegistry, ipValidator IPValidator) *Reconciler {
return &Reconciler{
client: client,
validator: validator,
cniReconciler: cniReconciler,
remoteClientRegistry: registry,
ipValidator: ipValidator,
ObjectApplier: serverside.NewObjectApplier(client),
}
}
func getSecret(ctx context.Context, kubectl client.Client, secretName, secretNS string) (*apiv1.Secret, error) {
secret := &apiv1.Secret{}
secretKey := client.ObjectKey{
Namespace: secretNS,
Name: secretName,
}
if err := kubectl.Get(ctx, secretKey, secret); err != nil {
return nil, err
}
return secret, nil
}
// GetNutanixCredsFromSecret returns the Nutanix credentials from a secret.
func GetNutanixCredsFromSecret(ctx context.Context, kubectl client.Client, secretName, secretNS string) (credentials.BasicAuthCredential, error) {
secret, err := getSecret(ctx, kubectl, secretName, secretNS)
if err != nil {
return credentials.BasicAuthCredential{}, fmt.Errorf("failed getting nutanix credentials secret: %v", err)
}
creds, err := credentials.ParseCredentials(secret.Data["credentials"])
if err != nil {
return credentials.BasicAuthCredential{}, fmt.Errorf("failed parsing nutanix credentials: %v", err)
}
return credentials.BasicAuthCredential{PrismCentral: credentials.PrismCentralBasicAuth{
BasicAuth: credentials.BasicAuth{
Username: creds.Username,
Password: creds.Password,
},
}}, nil
}
func (r *Reconciler) reconcileClusterSecret(ctx context.Context, log logr.Logger, c *cluster.Spec) (controller.Result, error) {
eksaSecret := &apiv1.Secret{}
eksaSecretKey := client.ObjectKey{
Namespace: constants.EksaSystemNamespace,
Name: nutanix.EKSASecretName(c),
}
if err := r.client.Get(ctx, eksaSecretKey, eksaSecret); err != nil {
log.Error(err, "Failed to get EKS-A secret %s/%s", constants.EksaSystemNamespace, c.NutanixDatacenter.Spec.CredentialRef.Name)
return controller.Result{}, err
}
capxSecret := &apiv1.Secret{}
capxSecretKey := client.ObjectKey{
Namespace: constants.EksaSystemNamespace,
Name: nutanix.CAPXSecretName(c),
}
if err := r.client.Get(ctx, capxSecretKey, capxSecret); err == nil {
if reflect.DeepEqual(eksaSecret.Data, capxSecret.Data) {
return controller.Result{}, nil
}
capxSecret.Data = eksaSecret.Data
if err := r.client.Update(ctx, capxSecret); err != nil {
log.Error(err, "Failed to update CAPX secret %s/%s", constants.EksaSystemNamespace, c.Cluster.Name)
return controller.Result{}, err
}
return controller.Result{}, nil
}
capxSecret = &apiv1.Secret{
ObjectMeta: metav1.ObjectMeta{
Namespace: constants.EksaSystemNamespace,
Name: nutanix.CAPXSecretName(c),
},
Data: eksaSecret.Data,
}
if err := r.client.Create(ctx, capxSecret); err != nil {
log.Error(err, "Failed to create CAPX secret %s/%s", constants.EksaSystemNamespace, c.Cluster.Name)
return controller.Result{}, err
}
return controller.Result{}, nil
}
// Reconcile reconciles the cluster to the desired state.
func (r *Reconciler) Reconcile(ctx context.Context, log logr.Logger, c *anywherev1.Cluster) (controller.Result, error) {
log = log.WithValues("provider", "nutanix")
clusterSpec, err := cluster.BuildSpec(ctx, clientutil.NewKubeClient(r.client), c)
if err != nil {
return controller.Result{}, err
}
return controller.NewPhaseRunner[*cluster.Spec]().Register(
r.reconcileClusterSecret,
r.ipValidator.ValidateControlPlaneIP,
r.ValidateClusterSpec,
clusters.CleanupStatusAfterValidate,
r.ReconcileControlPlane,
r.CheckControlPlaneReady,
r.ReconcileCNI,
r.ReconcileWorkers,
).Run(ctx, log, clusterSpec)
}
// ReconcileCNI reconciles the CNI to the desired state.
func (r *Reconciler) ReconcileCNI(ctx context.Context, log logr.Logger, clusterSpec *cluster.Spec) (controller.Result, error) {
log = log.WithValues("phase", "reconcileCNI")
c, err := r.remoteClientRegistry.GetClient(ctx, controller.CapiClusterObjectKey(clusterSpec.Cluster))
if err != nil {
return controller.Result{}, err
}
return r.cniReconciler.Reconcile(ctx, log, c, clusterSpec)
}
// ValidateClusterSpec performs additional, context-aware validations on the cluster spec.
func (r *Reconciler) ValidateClusterSpec(ctx context.Context, log logr.Logger, clusterSpec *cluster.Spec) (controller.Result, error) {
log = log.WithValues("phase", "validateClusterSpec")
creds, err := GetNutanixCredsFromSecret(ctx, r.client, clusterSpec.NutanixDatacenter.Spec.CredentialRef.Name, "eksa-system")
if err != nil {
return controller.Result{}, err
}
if err := r.validator.ValidateClusterSpec(ctx, clusterSpec, creds); err != nil {
log.Error(err, "Invalid cluster spec", "cluster", clusterSpec.Cluster.Name)
failureMessage := err.Error()
clusterSpec.Cluster.SetFailure(anywherev1.ClusterInvalidReason, failureMessage)
return controller.ResultWithReturn(), nil
}
return controller.Result{}, nil
}
// ReconcileControlPlane reconciles the control plane to the desired state.
func (r *Reconciler) ReconcileControlPlane(ctx context.Context, log logr.Logger, clusterSpec *cluster.Spec) (controller.Result, error) {
log = log.WithValues("phase", "reconcileControlPlane")
cp, err := nutanix.ControlPlaneSpec(ctx, log, clientutil.NewKubeClient(r.client), clusterSpec)
if err != nil {
return controller.Result{}, err
}
return clusters.ReconcileControlPlane(ctx, r.client, toClientControlPlane(cp))
}
func toClientControlPlane(cp *nutanix.ControlPlane) *clusters.ControlPlane {
return &clusters.ControlPlane{
Cluster: cp.Cluster,
ProviderCluster: cp.ProviderCluster,
KubeadmControlPlane: cp.KubeadmControlPlane,
ControlPlaneMachineTemplate: cp.ControlPlaneMachineTemplate,
EtcdCluster: cp.EtcdCluster,
EtcdMachineTemplate: cp.EtcdMachineTemplate,
}
}
// ReconcileWorkerNodes reconciles the worker nodes to the desired state.
func (r *Reconciler) ReconcileWorkerNodes(ctx context.Context, log logr.Logger, eksCluster *anywherev1.Cluster) (controller.Result, error) {
log = log.WithValues("provider", "nutanix", "reconcile type", "workers")
clusterSpec, err := cluster.BuildSpec(ctx, clientutil.NewKubeClient(r.client), eksCluster)
if err != nil {
return controller.Result{}, err
}
return controller.NewPhaseRunner[*cluster.Spec]().Register(
r.ValidateClusterSpec,
r.ReconcileWorkers,
).Run(ctx, log, clusterSpec)
}
// ReconcileWorkers reconciles the workers to the desired state.
func (r *Reconciler) ReconcileWorkers(ctx context.Context, log logr.Logger, spec *cluster.Spec) (controller.Result, error) {
if spec.NutanixDatacenter == nil {
return controller.Result{}, nil
}
log = log.WithValues("phase", "reconcileWorkers")
log.Info("Applying worker CAPI objects")
w, err := nutanix.WorkersSpec(ctx, log, clientutil.NewKubeClient(r.client), spec)
if err != nil {
return controller.Result{}, err
}
return clusters.ReconcileWorkersForEKSA(ctx, log, r.client, spec.Cluster, clusters.ToWorkers(w))
}
// CheckControlPlaneReady checks whether the control plane for an eks-a cluster is ready or not.
// Requeues with the appropriate wait times whenever the cluster is not ready yet.
func (r *Reconciler) CheckControlPlaneReady(ctx context.Context, log logr.Logger, clusterSpec *cluster.Spec) (controller.Result, error) {
log = log.WithValues("phase", "checkControlPlaneReady")
return clusters.CheckControlPlaneReady(ctx, r.client, log, clusterSpec.Cluster)
}