Provisioning: concurrent deletes in finalizers and 404 handling (#113155)

* fix: concurrent deletes in finalizers and 404 handling

* chore: feedback review

* fix: broken tests

pkg/operators/provisioning/repo_operator.go

@@ -90,6 +90,7 @@ func RunRepoController(deps server.OperatorDependencies) error {
 		statusPatcher,
 		deps.Registerer,
 		tracer,
+		controllerCfg.parallelOperations,
 	)
 	if err != nil {
 		return fmt.Errorf("failed to create repository controller: %w", err)
@@ -107,6 +108,7 @@ func RunRepoController(deps server.OperatorDependencies) error {
 type repoControllerConfig struct {
 	provisioningControllerConfig
 	workerCount         int
+	parallelOperations  int
 	allowedTargets      []string
 	allowImageRendering bool
 	minSyncInterval     time.Duration
@@ -128,6 +130,7 @@ func getRepoControllerConfig(cfg *setting.Cfg, registry prometheus.Registerer) (
 		provisioningControllerConfig: *controllerCfg,
 		allowedTargets:               allowedTargets,
 		workerCount:                  cfg.SectionWithEnvOverrides("operator").Key("worker_count").MustInt(1),
+		parallelOperations:           cfg.SectionWithEnvOverrides("operator").Key("parallel_operations").MustInt(10),
 		allowImageRendering:          cfg.SectionWithEnvOverrides("provisioning").Key("allow_image_rendering").MustBool(false),
 		minSyncInterval:              cfg.SectionWithEnvOverrides("provisioning").Key("min_sync_interval").MustDuration(1 * time.Minute),
 	}, nil