Gitops controller resyncs every hour

If gitrepos are lost from requeueAfter polling, resync should add them
again.

internal/cmd/controller/gitops/reconciler/gitjob_controller.go

@@ -213,7 +213,7 @@ func (r *GitJobReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctr
 // addJitter to the requeue time to avoid thundering herd
 // generate a random number between -10% and +10% of the duration
 func addJitter(d time.Duration) time.Duration {
-	return d + time.Duration(rand.Int64N(int64(d)/5)-int64(d)/10)
+	return d + time.Duration(rand.Int64N(int64(d)/5)-int64(d)/10) // nolint:gosec // gosec G404 false positive, not used for crypto
 }
 
 // manageGitJob is responsible for creating, updating and deleting the GitJob and setting the GitRepo's status accordingly

internal/cmd/controller/operator.go

@@ -3,6 +3,7 @@ package controller
 import (
 	"context"
 	"fmt"
+	"time"
 
 	"github.com/reugn/go-quartz/quartz"
 
@@ -18,6 +19,7 @@ import (
 	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
 	"k8s.io/client-go/rest"
 	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/cache"
 	"sigs.k8s.io/controller-runtime/pkg/healthz"
 	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
 )
@@ -59,6 +61,8 @@ func start(
 		leaderElectionSuffix = fmt.Sprintf("-%s", shardID)
 	}
 
+	hour := 60 * time.Minute
+
 	mgr, err := ctrl.NewManager(config, ctrl.Options{
 		Scheme:                 scheme,
 		Metrics:                metricServerOptions,
@@ -70,6 +74,11 @@ func start(
 		LeaseDuration:           leaderOpts.LeaseDuration,
 		RenewDeadline:           leaderOpts.RenewDeadline,
 		RetryPeriod:             leaderOpts.RetryPeriod,
+
+		// resync to pick up lost gitrepos
+		Cache: cache.Options{
+			SyncPeriod: &hour,
+		},
 	})
 	if err != nil {
 		setupLog.Error(err, "unable to start manager")