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core_collector_controller.go
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core_collector_controller.go
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package controllers
import (
"context"
corev1beta1 "github.com/rancher/opni/apis/core/v1beta1"
opniloggingv1beta1 "github.com/rancher/opni/apis/logging/v1beta1"
"github.com/rancher/opni/pkg/resources"
"github.com/rancher/opni/pkg/resources/collector"
"github.com/rancher/opni/pkg/util/k8sutil"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
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/reconcile"
"sigs.k8s.io/controller-runtime/pkg/source"
)
type CoreCollectorReconciler struct {
client.Client
scheme *runtime.Scheme
}
// +kubebuilder:rbac:groups=core.opni.io,resources=collectors,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=core.opni.io,resources=collectors/status,verbs=get;update;patch
// +kubebuilder:rbac:groups=core.opni.io,resources=collectors/finalizers,verbs=update
// +kubebuilder:rbac:groups=logging.opni.io,resources=collectorconfigs,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=logging.opni.io,resources=collectorconfigs/status,verbs=get;update;patch
// +kubebuilder:rbac:groups=logging.opni.io,resources=collectorconfigs/finalizers,verbs=update
func (r *CoreCollectorReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
collectorInstance := &corev1beta1.Collector{}
err := r.Get(ctx, req.NamespacedName, collectorInstance)
if err != nil {
return ctrl.Result{}, client.IgnoreNotFound(err)
}
CollectorClusterReconciler := collector.NewReconciler(ctx, collectorInstance, r.Client)
if err != nil {
return ctrl.Result{}, err
}
reconcilers := []resources.ComponentReconciler{
CollectorClusterReconciler.Reconcile,
}
for _, rec := range reconcilers {
op := k8sutil.LoadResult(rec())
if op.ShouldRequeue() {
return op.Result()
}
}
return k8sutil.DoNotRequeue().Result()
}
// SetupWithManager sets up the controller with the Manager.
func (r *CoreCollectorReconciler) SetupWithManager(mgr ctrl.Manager) error {
requestMapper := handler.EnqueueRequestsFromMapFunc(func(obj client.Object) []reconcile.Request {
var collectorList corev1beta1.CollectorList
if err := mgr.GetCache().List(context.Background(), &collectorList); err != nil {
return nil
}
return reconcileRequestsForCollector(collectorList.Items, obj.GetName())
})
r.Client = mgr.GetClient()
r.scheme = mgr.GetScheme()
return ctrl.NewControllerManagedBy(mgr).
For(&corev1beta1.Collector{}).
Watches(&source.Kind{Type: &opniloggingv1beta1.CollectorConfig{}}, requestMapper).
Owns(&corev1.ConfigMap{}).
Owns(&corev1.Service{}).
Owns(&appsv1.DaemonSet{}).
Owns(&appsv1.Deployment{}).
Complete(r)
}
func reconcileRequestsForCollector(collectors []corev1beta1.Collector, name string) (reqs []reconcile.Request) {
for _, c := range collectors {
if c.Spec.LoggingConfig != nil && c.Spec.LoggingConfig.Name == name {
reqs = append(reqs, reconcile.Request{
NamespacedName: types.NamespacedName{
Namespace: c.Namespace,
Name: c.Name,
},
})
}
}
return
}