feat(flag): replace '--slow' with '--parallel' (#5572)

Signed-off-by: knqyf263 <knqyf263@gmail.com>

pkg/flag/kubernetes_flags.go

@@ -6,7 +6,6 @@ import (
 	"strings"
 
 	"github.com/samber/lo"
-	"golang.org/x/xerrors"
 	corev1 "k8s.io/api/core/v1"
 )
 
@@ -52,12 +51,6 @@ var (
 		Default:    "",
 		Usage:      "specify k8s version to validate outdated api by it (example: 1.21.0)",
 	}
-	ParallelFlag = Flag{
-		Name:       "parallel",
-		ConfigName: "kubernetes.parallel",
-		Default:    5,
-		Usage:      "number (between 1-20) of goroutines enabled for parallel scanning",
-	}
 	TolerationsFlag = Flag{
 		Name:       "tolerations",
 		ConfigName: "kubernetes.tolerations",
@@ -97,7 +90,6 @@ type K8sFlagGroup struct {
 	KubeConfig             *Flag
 	Components             *Flag
 	K8sVersion             *Flag
-	Parallel               *Flag
 	Tolerations            *Flag
 	AllNamespaces          *Flag
 	NodeCollectorNamespace *Flag
@@ -111,7 +103,6 @@ type K8sOptions struct {
 	KubeConfig             string
 	Components             []string
 	K8sVersion             string
-	Parallel               int
 	Tolerations            []corev1.Toleration
 	AllNamespaces          bool
 	NodeCollectorNamespace string
@@ -126,7 +117,6 @@ func NewK8sFlagGroup() *K8sFlagGroup {
 		KubeConfig:             &KubeConfigFlag,
 		Components:             &ComponentsFlag,
 		K8sVersion:             &K8sVersionFlag,
-		Parallel:               &ParallelFlag,
 		Tolerations:            &TolerationsFlag,
 		AllNamespaces:          &AllNamespaces,
 		NodeCollectorNamespace: &NodeCollectorNamespace,
@@ -146,7 +136,6 @@ func (f *K8sFlagGroup) Flags() []*Flag {
 		f.KubeConfig,
 		f.Components,
 		f.K8sVersion,
-		f.Parallel,
 		f.Tolerations,
 		f.AllNamespaces,
 		f.NodeCollectorNamespace,
@@ -160,14 +149,7 @@ func (f *K8sFlagGroup) ToOptions() (K8sOptions, error) {
 	if err != nil {
 		return K8sOptions{}, err
 	}
-	var parallel int
-	if f.Parallel != nil {
-		parallel = getInt(f.Parallel)
-		// check parallel flag is a valid number between 1-20
-		if parallel < 1 || parallel > 20 {
-			return K8sOptions{}, xerrors.Errorf("unable to parse parallel value, please ensure that the value entered is a valid number between 1-20.")
-		}
-	}
+
 	exludeNodeLabels := make(map[string]string)
 	exludeNodes := getStringSlice(f.ExcludeNodes)
 	for _, exludeNodeValue := range exludeNodes {
@@ -184,7 +166,6 @@ func (f *K8sFlagGroup) ToOptions() (K8sOptions, error) {
 		KubeConfig:             getString(f.KubeConfig),
 		Components:             getStringSlice(f.Components),
 		K8sVersion:             getString(f.K8sVersion),
-		Parallel:               parallel,
 		Tolerations:            tolerations,
 		AllNamespaces:          getBool(f.AllNamespaces),
 		NodeCollectorNamespace: getString(f.NodeCollectorNamespace),