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reconciler.go
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reconciler.go
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// Copyright 2021 VMware, Inc.
// SPDX-License-Identifier: Apache-2.0
package packageinstall
import (
"context"
"fmt"
"github.com/go-logr/logr"
kappctrlv1alpha1 "github.com/vmware-tanzu/carvel-kapp-controller/pkg/apis/kappctrl/v1alpha1"
pkgingv1alpha1 "github.com/vmware-tanzu/carvel-kapp-controller/pkg/apis/packaging/v1alpha1"
datapkgingv1alpha1 "github.com/vmware-tanzu/carvel-kapp-controller/pkg/apiserver/apis/datapackaging/v1alpha1"
pkgclient "github.com/vmware-tanzu/carvel-kapp-controller/pkg/apiserver/client/clientset/versioned"
kcclient "github.com/vmware-tanzu/carvel-kapp-controller/pkg/client/clientset/versioned"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"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"
)
// Reconciler is responsible for reconciling PackageInstalls.
type Reconciler struct {
kcClient kcclient.Interface
pkgClient pkgclient.Interface
coreClient kubernetes.Interface
pkgToPkgInstallHandler *PackageInstallVersionHandler
compInfo ComponentInfo
log logr.Logger
}
// NewReconciler is the constructor for the Reconciler struct
func NewReconciler(kcClient kcclient.Interface, pkgClient pkgclient.Interface,
coreClient kubernetes.Interface, pkgToPkgInstallHandler *PackageInstallVersionHandler,
log logr.Logger, compInfo ComponentInfo) *Reconciler {
return &Reconciler{kcClient: kcClient,
pkgClient: pkgClient,
coreClient: coreClient,
pkgToPkgInstallHandler: pkgToPkgInstallHandler,
compInfo: compInfo,
log: log}
}
var _ reconcile.Reconciler = &Reconciler{}
// AttachWatches configures watches needed for reconciler to reconcile PackageInstalls.
func (r *Reconciler) AttachWatches(controller controller.Controller) error {
err := controller.Watch(&source.Kind{Type: &pkgingv1alpha1.PackageInstall{}}, &handler.EnqueueRequestForObject{})
if err != nil {
return fmt.Errorf("Watching PackageInstalls: %s", err)
}
err = controller.Watch(&source.Kind{Type: &datapkgingv1alpha1.Package{}}, r.pkgToPkgInstallHandler)
if err != nil {
return fmt.Errorf("Watching Packages: %s", err)
}
err = controller.Watch(&source.Kind{Type: &kappctrlv1alpha1.App{}}, &handler.EnqueueRequestForOwner{
OwnerType: &pkgingv1alpha1.PackageInstall{},
IsController: true,
})
if err != nil {
return fmt.Errorf("Watching Apps: %s", err)
}
return nil
}
// Reconcile ensures associated App is created per PackageInstall.
func (r *Reconciler) Reconcile(ctx context.Context, request reconcile.Request) (reconcile.Result, error) {
log := r.log.WithValues("request", request)
existingPkgInstall, err := r.kcClient.PackagingV1alpha1().PackageInstalls(request.Namespace).Get(ctx, request.Name, metav1.GetOptions{})
if err != nil {
if errors.IsNotFound(err) {
log.Info("Could not find PackageInstall", "name", request.Name)
return reconcile.Result{}, nil // No requeue
}
log.Error(err, "Could not fetch PackageInstall")
return reconcile.Result{}, err
}
return NewPackageInstallCR(existingPkgInstall, log, r.kcClient, r.pkgClient, r.coreClient, r.compInfo).Reconcile()
}