diff --git a/internal/pkg/rpaas/errors.go b/internal/pkg/rpaas/errors.go
index 57f66780..0ffe91c9 100644
--- a/internal/pkg/rpaas/errors.go
+++ b/internal/pkg/rpaas/errors.go
@@ -11,7 +11,7 @@ import (
 )
 
 var (
-	ErrNoPoolDefined = errors.New("No pool defined")
+	ErrNoPoolDefined = errors.New("no pool defined")
 )
 
 type NotModifiedError struct {
diff --git a/internal/pkg/rpaas/k8s.go b/internal/pkg/rpaas/k8s.go
index 44bbee96..114c4c1b 100644
--- a/internal/pkg/rpaas/k8s.go
+++ b/internal/pkg/rpaas/k8s.go
@@ -31,7 +31,6 @@ import (
 	nginxv1alpha1 "github.com/tsuru/nginx-operator/api/v1alpha1"
 	nginxk8s "github.com/tsuru/nginx-operator/pkg/k8s"
 	corev1 "k8s.io/api/core/v1"
-	v1 "k8s.io/api/core/v1"
 	networkingv1 "k8s.io/api/networking/v1"
 	k8sErrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/api/resource"
@@ -175,7 +174,7 @@ func (m *k8sRpaasManager) Debug(ctx context.Context, instanceName string, args D
 	return executorStream(args.CommonTerminalArgs, executor, ctx)
 }
 
-func (m *k8sRpaasManager) debugPodWithContainerStatus(ctx context.Context, args *DebugArgs, instanceName string) (*v1alpha1.RpaasInstance, string, *v1.ContainerStatus, error) {
+func (m *k8sRpaasManager) debugPodWithContainerStatus(ctx context.Context, args *DebugArgs, instanceName string) (*v1alpha1.RpaasInstance, string, *corev1.ContainerStatus, error) {
 	if args.Image == "" && config.Get().DebugImage == "" {
 		return nil, "", nil, ValidationError{Msg: "Debug image not set and no default image configured"}
 	}
@@ -227,11 +226,11 @@ func (m *k8sRpaasManager) generateDebugContainer(ctx context.Context, args *Debu
 	}
 	instancePodWithDebug := instancePod.DeepCopy()
 	instancePodWithDebug.Spec.EphemeralContainers = append(instancePod.Spec.EphemeralContainers, *debugContainer)
-	err = m.patchEphemeralContainers(ctx, instancePodWithDebug, instancePod, debugContainer)
+	err = m.patchEphemeralContainers(ctx, instancePodWithDebug, instancePod)
 	return debugContainerName, err
 }
 
-func (m *k8sRpaasManager) patchEphemeralContainers(ctx context.Context, instancePodWithDebug *v1.Pod, instancePod v1.Pod, debugContainer *v1.EphemeralContainer) error {
+func (m *k8sRpaasManager) patchEphemeralContainers(ctx context.Context, instancePodWithDebug *corev1.Pod, instancePod corev1.Pod) error {
 	podJS, err := json.Marshal(instancePod)
 	if err != nil {
 		return err
@@ -826,7 +825,7 @@ func (m *k8sRpaasManager) getFlavors(ctx context.Context) ([]v1alpha1.RpaasFlavo
 	return flavorList.Items, nil
 }
 
-func (m *k8sRpaasManager) selectFlavor(ctx context.Context, flavors []v1alpha1.RpaasFlavor, name string) *v1alpha1.RpaasFlavor {
+func (m *k8sRpaasManager) selectFlavor(flavors []v1alpha1.RpaasFlavor, name string) *v1alpha1.RpaasFlavor {
 	for i := range flavors {
 		if flavors[i].Name == name {
 			return &flavors[i]
@@ -1146,7 +1145,7 @@ func (m *k8sRpaasManager) validateFlavors(ctx context.Context, instance *v1alpha
 	added, removed := diffFlavors(existingFlavors, flavors)
 
 	for _, f := range added {
-		flavorObj := m.selectFlavor(ctx, allFlavors, f)
+		flavorObj := m.selectFlavor(allFlavors, f)
 		if flavorObj == nil {
 			return &ValidationError{Msg: fmt.Sprintf("flavor %q not found", f)}
 		}
@@ -1161,7 +1160,7 @@ func (m *k8sRpaasManager) validateFlavors(ctx context.Context, instance *v1alpha
 	}
 
 	for _, f := range removed {
-		flavorObj := m.selectFlavor(ctx, allFlavors, f)
+		flavorObj := m.selectFlavor(allFlavors, f)
 		if flavorObj == nil {
 			continue
 		}
@@ -1783,7 +1782,7 @@ func sortAddresses(addresses []clientTypes.InstanceAddress) {
 	})
 }
 
-func (m *k8sRpaasManager) loadBalancerInstanceAddresses(ctx context.Context, svc *v1.Service) ([]clientTypes.InstanceAddress, error) {
+func (m *k8sRpaasManager) loadBalancerInstanceAddresses(ctx context.Context, svc *corev1.Service) ([]clientTypes.InstanceAddress, error) {
 	var addresses []clientTypes.InstanceAddress
 
 	if isLoadBalancerReady(svc.Status.LoadBalancer.Ingress) {
@@ -1860,7 +1859,7 @@ func (m *k8sRpaasManager) ingressAddresses(ctx context.Context, ing *networkingv
 	return addresses, nil
 }
 
-func formatEventsToString(events []v1.Event) string {
+func formatEventsToString(events []corev1.Event) string {
 	var buf bytes.Buffer
 	reasonMap := map[string]bool{}
 
@@ -1876,7 +1875,7 @@ func formatEventsToString(events []v1.Event) string {
 	return buf.String()
 }
 
-func isLoadBalancerReady(ings []v1.LoadBalancerIngress) bool {
+func isLoadBalancerReady(ings []corev1.LoadBalancerIngress) bool {
 	if len(ings) == 0 {
 		return false
 	}
diff --git a/internal/pkg/rpaas/validation/manager.go b/internal/pkg/rpaas/validation/manager.go
index 9258508c..a20e045d 100644
--- a/internal/pkg/rpaas/validation/manager.go
+++ b/internal/pkg/rpaas/validation/manager.go
@@ -5,7 +5,6 @@ package validation
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"time"
 
@@ -14,7 +13,6 @@ import (
 	corev1 "k8s.io/api/core/v1"
 	k8sErrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/klog/v2"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 )
@@ -33,8 +31,6 @@ func New(manager rpaas.RpaasManager, cli client.Client) rpaas.RpaasManager {
 	}
 }
 
-var errNotImplementedYet = errors.New("not implemented yet")
-
 func (v *validationManager) DeleteBlock(ctx context.Context, instanceName, blockName string) error {
 	validation, err := v.validationCRD(ctx, instanceName)
 	if err != nil {
@@ -314,7 +310,7 @@ func (v *validationManager) validationCRD(ctx context.Context, instanceName stri
 	}
 
 	return &v1alpha1.RpaasValidation{
-		ObjectMeta: v1.ObjectMeta{
+		ObjectMeta: metav1.ObjectMeta{
 			Name:        instance.Name,
 			Namespace:   instance.Namespace,
 			Labels:      instance.Labels,