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rosacluster_controller.go
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rosacluster_controller.go
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/*
Copyright 2023 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package controllers
import (
"context"
"fmt"
"github.com/pkg/errors"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/tools/record"
"k8s.io/klog/v2"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
"sigs.k8s.io/controller-runtime/pkg/source"
infrav1 "sigs.k8s.io/cluster-api-provider-aws/v2/api/v1beta2"
rosacontrolplanev1 "sigs.k8s.io/cluster-api-provider-aws/v2/controlplane/rosa/api/v1beta2"
expinfrav1 "sigs.k8s.io/cluster-api-provider-aws/v2/exp/api/v1beta2"
"sigs.k8s.io/cluster-api-provider-aws/v2/pkg/logger"
clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1"
"sigs.k8s.io/cluster-api/util"
"sigs.k8s.io/cluster-api/util/annotations"
"sigs.k8s.io/cluster-api/util/patch"
"sigs.k8s.io/cluster-api/util/predicates"
)
// ROSAClusterReconciler reconciles ROSACluster.
type ROSAClusterReconciler struct {
client.Client
Recorder record.EventRecorder
WatchFilterValue string
}
// +kubebuilder:rbac:groups=infrastructure.cluster.x-k8s.io,resources=rosaclusters,verbs=get;list;watch;update;patch;delete
// +kubebuilder:rbac:groups=infrastructure.cluster.x-k8s.io,resources=rosaclusters/status,verbs=get;update;patch
// +kubebuilder:rbac:groups=controlplane.cluster.x-k8s.io,resources=rosacontrolplanes;rosacontrolplanes/status,verbs=get;list;watch
// +kubebuilder:rbac:groups=cluster.x-k8s.io,resources=clusters;clusters/status,verbs=get;list;watch
// +kubebuilder:rbac:groups="",resources=secrets,verbs=get;list;watch;create;update;patch;delete
func (r *ROSAClusterReconciler) Reconcile(ctx context.Context, req ctrl.Request) (_ ctrl.Result, reterr error) {
log := ctrl.LoggerFrom(ctx)
log.Info("Reconciling ROSACluster")
// Fetch the ROSACluster instance
rosaCluster := &expinfrav1.ROSACluster{}
err := r.Get(ctx, req.NamespacedName, rosaCluster)
if err != nil {
if apierrors.IsNotFound(err) {
return reconcile.Result{}, nil
}
return reconcile.Result{}, err
}
// Fetch the Cluster.
cluster, err := util.GetOwnerCluster(ctx, r.Client, rosaCluster.ObjectMeta)
if err != nil {
return reconcile.Result{}, err
}
if cluster == nil {
log.Info("Cluster Controller has not yet set OwnerRef")
return reconcile.Result{}, nil
}
if annotations.IsPaused(cluster, rosaCluster) {
log.Info("ROSACluster or linked Cluster is marked as paused. Won't reconcile")
return reconcile.Result{}, nil
}
log = log.WithValues("cluster", cluster.Name)
controlPlane := &rosacontrolplanev1.ROSAControlPlane{}
controlPlaneRef := types.NamespacedName{
Name: cluster.Spec.ControlPlaneRef.Name,
Namespace: cluster.Spec.ControlPlaneRef.Namespace,
}
if err := r.Get(ctx, controlPlaneRef, controlPlane); err != nil {
return reconcile.Result{}, fmt.Errorf("failed to get control plane ref: %w", err)
}
log = log.WithValues("controlPlane", controlPlaneRef.Name)
patchHelper, err := patch.NewHelper(rosaCluster, r.Client)
if err != nil {
return reconcile.Result{}, fmt.Errorf("failed to init patch helper: %w", err)
}
// Set the values from the managed control plane
rosaCluster.Status.Ready = true
rosaCluster.Spec.ControlPlaneEndpoint = controlPlane.Spec.ControlPlaneEndpoint
// rosaCluster.Status.FailureDomains = controlPlane.Status.FailureDomains
if err := patchHelper.Patch(ctx, rosaCluster); err != nil {
return reconcile.Result{}, fmt.Errorf("failed to patch ROSACluster: %w", err)
}
log.Info("Successfully reconciled ROSACluster")
return reconcile.Result{}, nil
}
func (r *ROSAClusterReconciler) SetupWithManager(ctx context.Context, mgr ctrl.Manager, options controller.Options) error {
log := logger.FromContext(ctx)
rosaCluster := &expinfrav1.ROSACluster{}
controller, err := ctrl.NewControllerManagedBy(mgr).
WithOptions(options).
For(rosaCluster).
WithEventFilter(predicates.ResourceNotPausedAndHasFilterLabel(ctrl.LoggerFrom(ctx), r.WatchFilterValue)).
Build(r)
if err != nil {
return fmt.Errorf("error creating controller: %w", err)
}
// Add a watch for clusterv1.Cluster unpaise
if err = controller.Watch(
source.Kind(mgr.GetCache(), &clusterv1.Cluster{}),
handler.EnqueueRequestsFromMapFunc(util.ClusterToInfrastructureMapFunc(ctx, infrav1.GroupVersion.WithKind("ROSACluster"), mgr.GetClient(), &expinfrav1.ROSACluster{})),
predicates.ClusterUnpaused(log.GetLogger()),
); err != nil {
return fmt.Errorf("failed adding a watch for ready clusters: %w", err)
}
// Add a watch for ROSAControlPlane
if err = controller.Watch(
source.Kind(mgr.GetCache(), &rosacontrolplanev1.ROSAControlPlane{}),
handler.EnqueueRequestsFromMapFunc(r.rosaControlPlaneToManagedCluster(log)),
); err != nil {
return fmt.Errorf("failed adding watch on ROSAControlPlane: %w", err)
}
return nil
}
func (r *ROSAClusterReconciler) rosaControlPlaneToManagedCluster(log *logger.Logger) handler.MapFunc {
return func(ctx context.Context, o client.Object) []ctrl.Request {
rosaControlPlane, ok := o.(*rosacontrolplanev1.ROSAControlPlane)
if !ok {
log.Error(errors.Errorf("expected a ROSAControlPlane, got %T instead", o), "failed to map ROSAControlPlane")
return nil
}
log := log.WithValues("objectMapper", "rosacpTorosac", "ROSAcontrolplane", klog.KRef(rosaControlPlane.Namespace, rosaControlPlane.Name))
if !rosaControlPlane.ObjectMeta.DeletionTimestamp.IsZero() {
log.Info("ROSAControlPlane has a deletion timestamp, skipping mapping")
return nil
}
if rosaControlPlane.Spec.ControlPlaneEndpoint.IsZero() {
log.Debug("ROSAControlPlane has no control plane endpoint, skipping mapping")
return nil
}
cluster, err := util.GetOwnerCluster(ctx, r.Client, rosaControlPlane.ObjectMeta)
if err != nil {
log.Error(err, "failed to get owning cluster")
return nil
}
if cluster == nil {
log.Info("no owning cluster, skipping mapping")
return nil
}
rosaClusterRef := cluster.Spec.InfrastructureRef
if rosaClusterRef == nil || rosaClusterRef.Kind != "ROSACluster" {
log.Info("InfrastructureRef is nil or not ROSACluster, skipping mapping")
return nil
}
return []ctrl.Request{
{
NamespacedName: types.NamespacedName{
Name: rosaClusterRef.Name,
Namespace: rosaClusterRef.Namespace,
},
},
}
}
}