253 lines
9.4 KiB
Go
253 lines
9.4 KiB
Go
package execution
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"k8s.io/apimachinery/pkg/api/errors"
|
|
"k8s.io/apimachinery/pkg/api/meta"
|
|
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
|
|
"k8s.io/client-go/kubernetes"
|
|
"k8s.io/client-go/tools/record"
|
|
"k8s.io/klog/v2"
|
|
controllerruntime "sigs.k8s.io/controller-runtime"
|
|
"sigs.k8s.io/controller-runtime/pkg/client"
|
|
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
|
|
"sigs.k8s.io/controller-runtime/pkg/predicate"
|
|
|
|
"github.com/karmada-io/karmada/pkg/apis/cluster/v1alpha1"
|
|
propagationstrategy "github.com/karmada-io/karmada/pkg/apis/policy/v1alpha1"
|
|
"github.com/karmada-io/karmada/pkg/util"
|
|
"github.com/karmada-io/karmada/pkg/util/names"
|
|
"github.com/karmada-io/karmada/pkg/util/objectwatcher"
|
|
"github.com/karmada-io/karmada/pkg/util/restmapper"
|
|
)
|
|
|
|
const (
|
|
// ControllerName is the controller name that will be used when reporting events.
|
|
ControllerName = "execution-controller"
|
|
)
|
|
|
|
// Controller is to sync PropagationWork.
|
|
type Controller struct {
|
|
client.Client // used to operate PropagationWork resources.
|
|
KubeClientSet kubernetes.Interface // used to get kubernetes resources.
|
|
EventRecorder record.EventRecorder
|
|
RESTMapper meta.RESTMapper
|
|
ObjectWatcher objectwatcher.ObjectWatcher
|
|
}
|
|
|
|
// Reconcile performs a full reconciliation for the object referred to by the Request.
|
|
// The Controller will requeue the Request to be processed again if an error is non-nil or
|
|
// Result.Requeue is true, otherwise upon completion it will remove the work from the queue.
|
|
func (c *Controller) Reconcile(req controllerruntime.Request) (controllerruntime.Result, error) {
|
|
klog.V(4).Infof("Reconciling PropagationWork %s", req.NamespacedName.String())
|
|
|
|
work := &propagationstrategy.PropagationWork{}
|
|
if err := c.Client.Get(context.TODO(), req.NamespacedName, work); err != nil {
|
|
// The resource may no longer exist, in which case we stop processing.
|
|
if errors.IsNotFound(err) {
|
|
return controllerruntime.Result{}, nil
|
|
}
|
|
|
|
return controllerruntime.Result{Requeue: true}, err
|
|
}
|
|
|
|
if !work.DeletionTimestamp.IsZero() {
|
|
applied := c.isResourceApplied(&work.Status)
|
|
if applied {
|
|
err := c.tryDeleteWorkload(work)
|
|
if err != nil {
|
|
klog.Errorf("Failed to delete propagationWork %v, namespace is %v, err is %v", work.Name, work.Namespace, err)
|
|
return controllerruntime.Result{Requeue: true}, err
|
|
}
|
|
}
|
|
return c.removeFinalizer(work)
|
|
}
|
|
|
|
return c.syncWork(work)
|
|
}
|
|
|
|
// SetupWithManager creates a controller and register to controller manager.
|
|
func (c *Controller) SetupWithManager(mgr controllerruntime.Manager) error {
|
|
return controllerruntime.NewControllerManagedBy(mgr).
|
|
For(&propagationstrategy.PropagationWork{}).
|
|
WithEventFilter(predicate.GenerationChangedPredicate{}).
|
|
Complete(c)
|
|
}
|
|
|
|
func (c *Controller) syncWork(propagationWork *propagationstrategy.PropagationWork) (controllerruntime.Result, error) {
|
|
err := c.dispatchPropagationWork(propagationWork)
|
|
if err != nil {
|
|
klog.Errorf("Failed to dispatch propagationWork %q, namespace is %v, err is %v", propagationWork.Name, propagationWork.Namespace, err)
|
|
return controllerruntime.Result{Requeue: true}, err
|
|
}
|
|
|
|
return controllerruntime.Result{}, nil
|
|
}
|
|
|
|
// isResourceApplied checking weather resource has been dispatched to member cluster or not
|
|
func (c *Controller) isResourceApplied(propagationWorkStatus *propagationstrategy.PropagationWorkStatus) bool {
|
|
for _, condition := range propagationWorkStatus.Conditions {
|
|
if condition.Type == "Applied" {
|
|
if condition.Status == v1.ConditionTrue {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// tryDeleteWorkload tries to delete resource in the given member cluster.
|
|
// Abort deleting when the member cluster is unready, otherwise we can't unjoin the member cluster when the member cluster is unready
|
|
func (c *Controller) tryDeleteWorkload(propagationWork *propagationstrategy.PropagationWork) error {
|
|
clusterName, err := names.GetClusterName(propagationWork.Namespace)
|
|
if err != nil {
|
|
klog.Errorf("Failed to get member cluster name for propagationWork %s/%s", propagationWork.Namespace, propagationWork.Name)
|
|
return err
|
|
}
|
|
|
|
cluster, err := util.GetCluster(c.Client, clusterName)
|
|
if err != nil {
|
|
klog.Errorf("Failed to get the given member cluster %s", clusterName)
|
|
return err
|
|
}
|
|
|
|
// Do not clean up resource in the given member cluster if the status of the given member cluster is unready
|
|
if !util.IsClusterReady(&cluster.Status) {
|
|
klog.Infof("Do not clean up resource in the given member cluster if the status of the given member cluster %s is unready", cluster.Name)
|
|
return nil
|
|
}
|
|
|
|
for _, manifest := range propagationWork.Spec.Workload.Manifests {
|
|
workload := &unstructured.Unstructured{}
|
|
err := workload.UnmarshalJSON(manifest.Raw)
|
|
if err != nil {
|
|
klog.Errorf("failed to unmarshal workload, error is: %v", err)
|
|
return err
|
|
}
|
|
|
|
err = c.ObjectWatcher.Delete(clusterName, workload)
|
|
if err != nil {
|
|
klog.Errorf("Failed to delete resource in the given member cluster %v, err is %v", cluster.Name, err)
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *Controller) dispatchPropagationWork(propagationWork *propagationstrategy.PropagationWork) error {
|
|
clusterName, err := names.GetClusterName(propagationWork.Namespace)
|
|
if err != nil {
|
|
klog.Errorf("Failed to get member cluster name for propagationWork %s/%s", propagationWork.Namespace, propagationWork.Name)
|
|
return err
|
|
}
|
|
|
|
cluster, err := util.GetCluster(c.Client, clusterName)
|
|
if err != nil {
|
|
klog.Errorf("Failed to the get given member cluster %s", clusterName)
|
|
return err
|
|
}
|
|
|
|
if !util.IsClusterReady(&cluster.Status) {
|
|
klog.Errorf("The status of the given member cluster %s is unready", cluster.Name)
|
|
return fmt.Errorf("cluster %s is not ready, requeuing operation until cluster state is ready", cluster.Name)
|
|
}
|
|
|
|
err = c.syncToClusters(cluster, propagationWork)
|
|
if err != nil {
|
|
klog.Errorf("Failed to dispatch propagationWork %v, namespace is %v, err is %v", propagationWork.Name, propagationWork.Namespace, err)
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// syncToClusters ensures that the state of the given object is synchronized to member clusters.
|
|
func (c *Controller) syncToClusters(cluster *v1alpha1.Cluster, propagationWork *propagationstrategy.PropagationWork) error {
|
|
clusterDynamicClient, err := util.NewClusterDynamicClientSet(cluster, c.KubeClientSet)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, manifest := range propagationWork.Spec.Workload.Manifests {
|
|
workload := &unstructured.Unstructured{}
|
|
err := workload.UnmarshalJSON(manifest.Raw)
|
|
if err != nil {
|
|
klog.Errorf("failed to unmarshal workload, error is: %v", err)
|
|
return err
|
|
}
|
|
|
|
util.MergeLabel(workload, util.OwnerLabel, names.GenerateOwnerLabelValue(propagationWork.GetNamespace(), propagationWork.GetName()))
|
|
|
|
applied := c.isResourceApplied(&propagationWork.Status)
|
|
if applied {
|
|
// todo: get clusterObj from cache
|
|
dynamicResource, err := restmapper.GetGroupVersionResource(c.RESTMapper, workload.GroupVersionKind())
|
|
if err != nil {
|
|
klog.Errorf("Failed to get resource(%s/%s) as mapping GVK to GVR failed: %v", workload.GetNamespace(), workload.GetName(), err)
|
|
return err
|
|
}
|
|
|
|
clusterObj, err := clusterDynamicClient.DynamicClientSet.Resource(dynamicResource).Namespace(workload.GetNamespace()).Get(context.TODO(), workload.GetName(), v1.GetOptions{})
|
|
if err != nil {
|
|
klog.Errorf("Failed to get resource %v from member cluster, err is %v ", workload.GetName(), err)
|
|
return err
|
|
}
|
|
|
|
err = c.ObjectWatcher.Update(cluster.Name, clusterObj, workload)
|
|
if err != nil {
|
|
klog.Errorf("Failed to update resource in the given member cluster %s, err is %v", cluster.Name, err)
|
|
return err
|
|
}
|
|
} else {
|
|
err = c.ObjectWatcher.Create(cluster.Name, workload)
|
|
if err != nil {
|
|
klog.Errorf("Failed to create resource in the given member cluster %s, err is %v", cluster.Name, err)
|
|
return err
|
|
}
|
|
|
|
err := c.updateAppliedCondition(propagationWork)
|
|
if err != nil {
|
|
klog.Errorf("Failed to update applied status for given propagationWork %v, namespace is %v, err is %v", propagationWork.Name, propagationWork.Namespace, err)
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// removeFinalizer remove finalizer from the given propagationWork
|
|
func (c *Controller) removeFinalizer(propagationWork *propagationstrategy.PropagationWork) (controllerruntime.Result, error) {
|
|
if !controllerutil.ContainsFinalizer(propagationWork, util.ExecutionControllerFinalizer) {
|
|
return controllerruntime.Result{}, nil
|
|
}
|
|
|
|
controllerutil.RemoveFinalizer(propagationWork, util.ExecutionControllerFinalizer)
|
|
err := c.Client.Update(context.TODO(), propagationWork)
|
|
if err != nil {
|
|
return controllerruntime.Result{Requeue: true}, err
|
|
}
|
|
return controllerruntime.Result{}, nil
|
|
}
|
|
|
|
// updateAppliedCondition update the Applied condition for the given PropagationWork
|
|
func (c *Controller) updateAppliedCondition(propagationWork *propagationstrategy.PropagationWork) error {
|
|
currentTime := v1.Now()
|
|
propagationWorkApplied := "Applied"
|
|
appliedSuccess := "AppliedSuccess"
|
|
resourceApplied := "Success sync resource in member cluster"
|
|
newPropagationWorkAppliedCondition := v1.Condition{
|
|
Type: propagationWorkApplied,
|
|
Status: v1.ConditionTrue,
|
|
Reason: appliedSuccess,
|
|
Message: resourceApplied,
|
|
LastTransitionTime: currentTime,
|
|
}
|
|
propagationWork.Status.Conditions = append(propagationWork.Status.Conditions, newPropagationWorkAppliedCondition)
|
|
err := c.Client.Status().Update(context.TODO(), propagationWork)
|
|
return err
|
|
}
|