constellation/operators/constellation-node-operator/controllers/joiningnode_controller.go
renovate[bot] 2afddcb0f8
deps: update K8s dependencies (#1599)
* deps: update K8s dependencies

* deps: bump controller runtime

* chore: tidy

* bump helm and migrate controller runtime

* fix helm deprecation

---------

Signed-off-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>
Co-authored-by: Leonard Cohnen <lc@edgeless.systems>
2023-05-24 18:57:45 +02:00

144 lines
4.5 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package controllers
import (
"context"
"time"
mainconstants "github.com/edgelesssys/constellation/v2/internal/constants"
updatev1alpha1 "github.com/edgelesssys/constellation/v2/operators/constellation-node-operator/v2/api/v1alpha1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/util/retry"
"k8s.io/utils/clock"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
const (
joiningNodeNameKey = ".spec.name"
)
// JoiningNodesReconciler reconciles a JoiningNode object.
type JoiningNodesReconciler struct {
client.Client
Scheme *runtime.Scheme
clock.Clock
}
// NewJoiningNodesReconciler creates a new JoiningNodesReconciler.
func NewJoiningNodesReconciler(client client.Client, scheme *runtime.Scheme) *JoiningNodesReconciler {
return &JoiningNodesReconciler{
Client: client,
Scheme: scheme,
Clock: clock.RealClock{},
}
}
//+kubebuilder:rbac:groups=update.edgeless.systems,resources=joiningnodes,verbs=get;list;watch;create;update;patch;delete
//+kubebuilder:rbac:groups=update.edgeless.systems,resources=joiningnodes/status,verbs=get;update;patch
//+kubebuilder:rbac:groups=update.edgeless.systems,resources=joiningnodes/finalizers,verbs=update
//+kubebuilder:rbac:groups="",resources=nodes,verbs=get;list;watch
// Reconcile annotates the node with the components hash.
func (r *JoiningNodesReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
logr := log.FromContext(ctx)
var joiningNode updatev1alpha1.JoiningNode
if err := r.Get(ctx, req.NamespacedName, &joiningNode); err != nil {
if !errors.IsNotFound(err) {
logr.Error(err, "Unable to fetch JoiningNode")
}
return ctrl.Result{}, client.IgnoreNotFound(err)
}
err := retry.RetryOnConflict(retry.DefaultRetry, func() error {
var node corev1.Node
if err := r.Get(ctx, types.NamespacedName{Name: joiningNode.Spec.Name}, &node); err != nil {
logr.Info("unable to fetch Node", "err", err)
return err
}
// add annotations to node
if node.Annotations == nil {
node.Annotations = map[string]string{}
}
node.Annotations[mainconstants.NodeKubernetesComponentsAnnotationKey] = joiningNode.Spec.ComponentsReference
return r.Update(ctx, &node)
})
if err != nil {
// check if the deadline has been reached
// requeue if not
if joiningNode.Spec.Deadline == nil || r.Now().Before(joiningNode.Spec.Deadline.Time) {
var requeueAfter time.Duration
if joiningNode.Spec.Deadline == nil {
requeueAfter = defaultCheckInterval
} else {
requeueAfter = joiningNode.Spec.Deadline.Time.Sub(r.Now())
}
return ctrl.Result{
RequeueAfter: requeueAfter,
}, nil
}
}
// if the joining node is too old or the annotation succeeded, delete it.
err = retry.RetryOnConflict(retry.DefaultRetry, func() error {
if err := r.Get(ctx, req.NamespacedName, &joiningNode); err != nil {
return client.IgnoreNotFound(err)
}
return client.IgnoreNotFound(r.Delete(ctx, &joiningNode))
})
if err != nil {
logr.Error(err, "unable to delete JoiningNode")
return ctrl.Result{}, err
}
return ctrl.Result{}, err
}
// SetupWithManager sets up the controller with the Manager.
func (r *JoiningNodesReconciler) SetupWithManager(mgr ctrl.Manager) error {
// index joining nodes by nodename.
if err := mgr.GetFieldIndexer().IndexField(context.Background(), &updatev1alpha1.JoiningNode{}, joiningNodeNameKey, func(rawObj client.Object) []string {
joiningNode := rawObj.(*updatev1alpha1.JoiningNode)
return []string{joiningNode.Spec.Name}
}); err != nil {
return err
}
return ctrl.NewControllerManagedBy(mgr).
For(&updatev1alpha1.JoiningNode{}).
Watches(
client.Object(&corev1.Node{}),
handler.EnqueueRequestsFromMapFunc(r.findAllJoiningNodes),
).
Complete(r)
}
func (r *JoiningNodesReconciler) findAllJoiningNodes(ctx context.Context, obj client.Object) []reconcile.Request {
var joiningNodesList updatev1alpha1.JoiningNodeList
err := r.List(ctx, &joiningNodesList, client.MatchingFields{joiningNodeNameKey: obj.GetName()})
if err != nil {
return []reconcile.Request{}
}
requests := make([]reconcile.Request, len(joiningNodesList.Items))
for i, item := range joiningNodesList.Items {
requests[i] = reconcile.Request{
NamespacedName: types.NamespacedName{Name: item.GetName()},
}
}
return requests
}