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apigroup.go
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apigroup.go
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package util
import (
"fmt"
"strings"
coordinationv1 "k8s.io/api/coordination/v1"
eventsv1 "k8s.io/api/events/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
autoscalingv1alpha1 "github.com/karmada-io/karmada/pkg/apis/autoscaling/v1alpha1"
clusterv1alpha1 "github.com/karmada-io/karmada/pkg/apis/cluster/v1alpha1"
configv1alpha1 "github.com/karmada-io/karmada/pkg/apis/config/v1alpha1"
networkingv1alpha1 "github.com/karmada-io/karmada/pkg/apis/networking/v1alpha1"
policyv1alpha1 "github.com/karmada-io/karmada/pkg/apis/policy/v1alpha1"
workv1alpha1 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha1"
)
// SkippedResourceConfig represents the configuration that identifies the API resources should be skipped from propagating.
type SkippedResourceConfig struct {
// Groups holds a collection of API group, all resources under this group will be skipped.
Groups map[string]struct{}
// GroupVersions holds a collection of API GroupVersion, all resource under this GroupVersion will be skipped.
GroupVersions map[schema.GroupVersion]struct{}
// GroupVersionKinds holds a collection of resource that should be skipped.
GroupVersionKinds map[schema.GroupVersionKind]struct{}
}
var corev1EventGVK = schema.GroupVersionKind{
Group: "",
Version: "v1",
Kind: "Event",
}
// NewSkippedResourceConfig to create SkippedResourceConfig
func NewSkippedResourceConfig() *SkippedResourceConfig {
r := &SkippedResourceConfig{
Groups: map[string]struct{}{},
GroupVersions: map[schema.GroupVersion]struct{}{},
GroupVersionKinds: map[schema.GroupVersionKind]struct{}{},
}
// disable karmada group by default
r.DisableGroup(clusterv1alpha1.GroupVersion.Group)
r.DisableGroup(policyv1alpha1.GroupVersion.Group)
r.DisableGroup(workv1alpha1.GroupVersion.Group)
r.DisableGroup(configv1alpha1.GroupVersion.Group)
r.DisableGroup(networkingv1alpha1.GroupVersion.Group)
r.DisableGroup(autoscalingv1alpha1.GroupVersion.Group)
// disable event by default
r.DisableGroup(eventsv1.GroupName)
r.DisableGroupVersionKind(corev1EventGVK)
// disable Lease by default
r.DisableGroupVersion(coordinationv1.SchemeGroupVersion)
return r
}
// Parse parses the --skipped-propagating-apis input.
func (r *SkippedResourceConfig) Parse(c string) error {
// default(empty) input
if c == "" {
return nil
}
tokens := strings.Split(c, ";")
for _, token := range tokens {
if err := r.parseSingle(token); err != nil {
return fmt.Errorf("parse --skipped-propagating-apis %w", err)
}
}
return nil
}
func (r *SkippedResourceConfig) parseSingle(token string) error {
switch strings.Count(token, "/") {
// Assume user don't want to skip the 'core'(no group name) group.
// So, it should be the case "<group>".
case 0:
r.Groups[token] = struct{}{}
// it should be the case "<group>/<version>"
case 1:
// for core group which don't have the group name, the case should be "v1/<kind>" or "v1/<kind>,<kind>..."
if strings.HasPrefix(token, "v1") {
var kinds []string
for _, k := range strings.Split(token, ",") {
if strings.Contains(k, "/") { // "v1/<kind>"
s := strings.Split(k, "/")
kinds = append(kinds, s[1])
} else {
kinds = append(kinds, k)
}
}
for _, k := range kinds {
gvk := schema.GroupVersionKind{
Version: "v1",
Kind: k,
}
r.GroupVersionKinds[gvk] = struct{}{}
}
} else { // case "<group>/<version>"
parts := strings.Split(token, "/")
if len(parts) != 2 {
return fmt.Errorf("invalid token: %s", token)
}
gv := schema.GroupVersion{
Group: parts[0],
Version: parts[1],
}
r.GroupVersions[gv] = struct{}{}
}
// parameter format: "<group>/<version>/<kind>" or "<group>/<version>/<kind>,<kind>..."
case 2:
g := ""
v := ""
var kinds []string
for _, k := range strings.Split(token, ",") {
if strings.Contains(k, "/") {
s := strings.Split(k, "/")
g = s[0]
v = s[1]
kinds = append(kinds, s[2])
} else {
kinds = append(kinds, k)
}
}
for _, k := range kinds {
gvk := schema.GroupVersionKind{
Group: g,
Version: v,
Kind: k,
}
r.GroupVersionKinds[gvk] = struct{}{}
}
default:
return fmt.Errorf("invalid parameter: %s", token)
}
return nil
}
// GroupVersionDisabled returns whether GroupVersion is disabled.
func (r *SkippedResourceConfig) GroupVersionDisabled(gv schema.GroupVersion) bool {
if _, ok := r.GroupVersions[gv]; ok {
return true
}
return false
}
// GroupVersionKindDisabled returns whether GroupVersionKind is disabled.
func (r *SkippedResourceConfig) GroupVersionKindDisabled(gvk schema.GroupVersionKind) bool {
if _, ok := r.GroupVersionKinds[gvk]; ok {
return true
}
return false
}
// GroupDisabled returns whether Group is disabled.
func (r *SkippedResourceConfig) GroupDisabled(g string) bool {
if _, ok := r.Groups[g]; ok {
return true
}
return false
}
// DisableGroup to disable group.
func (r *SkippedResourceConfig) DisableGroup(g string) {
r.Groups[g] = struct{}{}
}
// DisableGroupVersion to disable GroupVersion.
func (r *SkippedResourceConfig) DisableGroupVersion(gv schema.GroupVersion) {
r.GroupVersions[gv] = struct{}{}
}
// DisableGroupVersionKind to disable GroupVersionKind.
func (r *SkippedResourceConfig) DisableGroupVersionKind(gvk schema.GroupVersionKind) {
r.GroupVersionKinds[gvk] = struct{}{}
}