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virtualgateway_controller.go
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virtualgateway_controller.go
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/*
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"
"github.com/aws/aws-app-mesh-controller-for-k8s/pkg/k8s"
"github.com/aws/aws-app-mesh-controller-for-k8s/pkg/runtime"
"github.com/aws/aws-app-mesh-controller-for-k8s/pkg/virtualgateway"
"github.com/go-logr/logr"
corev1 "k8s.io/api/core/v1"
"k8s.io/client-go/tools/record"
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/source"
appmesh "github.com/aws/aws-app-mesh-controller-for-k8s/apis/appmesh/v1beta2"
)
// NewVirtualGatewayReconciler constructs new virtualGatewayReconciler
func NewVirtualGatewayReconciler(
k8sClient client.Client,
finalizerManager k8s.FinalizerManager,
vgMembersFinalizer virtualgateway.MembersFinalizer,
vgResManager virtualgateway.ResourceManager,
log logr.Logger,
recorder record.EventRecorder) *virtualGatewayReconciler {
return &virtualGatewayReconciler{
k8sClient: k8sClient,
finalizerManager: finalizerManager,
vgMembersFinalizer: vgMembersFinalizer,
vgResManager: vgResManager,
enqueueRequestsForMeshEvents: virtualgateway.NewEnqueueRequestsForMeshEvents(k8sClient, log),
log: log,
recorder: recorder,
}
}
// virtualGatewayReconciler reconciles a VirtualGateway object
type virtualGatewayReconciler struct {
k8sClient client.Client
finalizerManager k8s.FinalizerManager
vgMembersFinalizer virtualgateway.MembersFinalizer
vgResManager virtualgateway.ResourceManager
enqueueRequestsForMeshEvents handler.EventHandler
log logr.Logger
recorder record.EventRecorder
}
// +kubebuilder:rbac:groups=appmesh.k8s.aws,resources=virtualgateways,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=appmesh.k8s.aws,resources=virtualgateways/status,verbs=get;update;patch
// +kubebuilder:rbac:groups="",resources=events,verbs=create;patch
func (r *virtualGatewayReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
return runtime.HandleReconcileError(r.reconcile(ctx, req), r.log)
}
func (r *virtualGatewayReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&appmesh.VirtualGateway{}).
Watches(&source.Kind{Type: &appmesh.Mesh{}}, r.enqueueRequestsForMeshEvents).
WithOptions(controller.Options{MaxConcurrentReconciles: 3}).
Complete(r)
}
func (r *virtualGatewayReconciler) reconcile(ctx context.Context, req ctrl.Request) error {
vg := &appmesh.VirtualGateway{}
if err := r.k8sClient.Get(ctx, req.NamespacedName, vg); err != nil {
return client.IgnoreNotFound(err)
}
if !vg.DeletionTimestamp.IsZero() {
return r.cleanupVirtualGateway(ctx, vg)
}
if err := r.reconcileVirtualGateway(ctx, vg); err != nil {
r.recorder.Event(vg, corev1.EventTypeWarning, "ReconcileError", err.Error())
return err
}
return nil
}
func (r *virtualGatewayReconciler) reconcileVirtualGateway(ctx context.Context, vg *appmesh.VirtualGateway) error {
if err := r.finalizerManager.AddFinalizers(ctx, vg, k8s.FinalizerVirtualGatewayMembers, k8s.FinalizerAWSAppMeshResources); err != nil {
return err
}
if err := r.vgResManager.Reconcile(ctx, vg); err != nil {
return err
}
return nil
}
func (r *virtualGatewayReconciler) cleanupVirtualGateway(ctx context.Context, vg *appmesh.VirtualGateway) error {
if k8s.HasFinalizer(vg, k8s.FinalizerVirtualGatewayMembers) {
if err := r.vgMembersFinalizer.Finalize(ctx, vg); err != nil {
return err
}
if err := r.finalizerManager.RemoveFinalizers(ctx, vg, k8s.FinalizerVirtualGatewayMembers); err != nil {
return err
}
}
if k8s.HasFinalizer(vg, k8s.FinalizerAWSAppMeshResources) {
if err := r.vgResManager.Cleanup(ctx, vg); err != nil {
return err
}
if err := r.finalizerManager.RemoveFinalizers(ctx, vg, k8s.FinalizerAWSAppMeshResources); err != nil {
return err
}
}
return nil
}