xds/internal: Replace calls to Debugf with V(2) checks and Infof (#7180)

Author: townba

xds/internal/balancer/priority/balancer.go

@@ -115,7 +115,9 @@ type priorityBalancer struct {
 }
 
 func (b *priorityBalancer) UpdateClientConnState(s balancer.ClientConnState) error {
-b.logger.Debugf("Received an update with balancer config: %+v", pretty.ToJSON(s.BalancerConfig))
+if b.logger.V(2) {
+b.logger.Infof("Received an update with balancer config: %+v", pretty.ToJSON(s.BalancerConfig))
+}
 newConfig, ok := s.BalancerConfig.(*LBConfig)
 if !ok {
 return fmt.Errorf("unexpected balancer config with type: %T", s.BalancerConfig)

xds/internal/xdsclient/authority.go

@@ -482,7 +482,9 @@ func (a *authority) watchResource(rType xdsresource.Type, resourceName string, w
 
 // If we have a cached copy of the resource, notify the new watcher.
 if state.cache != nil {
-a.logger.Debugf("Resource type %q with resource name %q found in cache: %s", rType.TypeName(), resourceName, state.cache.ToJSON())
+if a.logger.V(2) {
+a.logger.Infof("Resource type %q with resource name %q found in cache: %s", rType.TypeName(), resourceName, state.cache.ToJSON())
+}
 resource := state.cache
 a.serializer.Schedule(func(context.Context) { watcher.OnUpdate(resource) })
 }

xds/internal/xdsclient/bootstrap/bootstrap.go

@@ -568,6 +568,8 @@ func newConfigFromContents(data []byte) (*Config, error) {
 node.ClientFeatures = append(node.ClientFeatures, clientFeatureNoOverprovisioning, clientFeatureResourceWrapper)
 config.NodeProto = node
 
-logger.Debugf("Bootstrap config for creating xds-client: %v", pretty.ToJSON(config))
+if logger.V(2) {
+logger.Infof("Bootstrap config for creating xds-client: %v", pretty.ToJSON(config))
+}
 return config, nil
 }