122 lines
4.0 KiB
Go
122 lines
4.0 KiB
Go
package configmanager
|
|
|
|
import (
|
|
"fmt"
|
|
"sort"
|
|
"sync/atomic"
|
|
|
|
"k8s.io/apimachinery/pkg/labels"
|
|
"k8s.io/apimachinery/pkg/runtime/schema"
|
|
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
|
|
"k8s.io/client-go/tools/cache"
|
|
"k8s.io/klog/v2"
|
|
|
|
configv1alpha1 "github.com/karmada-io/karmada/pkg/apis/config/v1alpha1"
|
|
"github.com/karmada-io/karmada/pkg/util/fedinformer"
|
|
"github.com/karmada-io/karmada/pkg/util/fedinformer/genericmanager"
|
|
"github.com/karmada-io/karmada/pkg/util/helper"
|
|
)
|
|
|
|
var resourceExploringWebhookConfigurationsGVR = schema.GroupVersionResource{
|
|
Group: configv1alpha1.GroupVersion.Group,
|
|
Version: configv1alpha1.GroupVersion.Version,
|
|
Resource: "resourceinterpreterwebhookconfigurations",
|
|
}
|
|
|
|
// ConfigManager can list dynamic webhooks.
|
|
type ConfigManager interface {
|
|
HookAccessors() []WebhookAccessor
|
|
HasSynced() bool
|
|
}
|
|
|
|
// interpreterConfigManager collect the resource interpreter webhook configuration.
|
|
type interpreterConfigManager struct {
|
|
configuration atomic.Value
|
|
lister cache.GenericLister
|
|
initialSynced atomic.Bool
|
|
}
|
|
|
|
// HookAccessors return all configured resource interpreter webhook.
|
|
func (m *interpreterConfigManager) HookAccessors() []WebhookAccessor {
|
|
return m.configuration.Load().([]WebhookAccessor)
|
|
}
|
|
|
|
// HasSynced return true when the manager is synced with existing configuration.
|
|
func (m *interpreterConfigManager) HasSynced() bool {
|
|
if m.initialSynced.Load() {
|
|
return true
|
|
}
|
|
|
|
if configuration, err := m.lister.List(labels.Everything()); err == nil && len(configuration) == 0 {
|
|
// the empty list we initially stored is valid to use.
|
|
// Setting initialSynced to true, so subsequent checks
|
|
// would be able to take the fast path on the atomic boolean in a
|
|
// cluster without any webhooks configured.
|
|
m.initialSynced.Store(true)
|
|
// the informer has synced, and we don't have any items
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
// NewExploreConfigManager return a new interpreterConfigManager with resourceinterpreterwebhookconfigurations handlers.
|
|
func NewExploreConfigManager(inform genericmanager.SingleClusterInformerManager) ConfigManager {
|
|
manager := &interpreterConfigManager{
|
|
lister: inform.Lister(resourceExploringWebhookConfigurationsGVR),
|
|
}
|
|
|
|
manager.configuration.Store([]WebhookAccessor{})
|
|
|
|
configHandlers := fedinformer.NewHandlerOnEvents(
|
|
func(_ interface{}) { manager.updateConfiguration() },
|
|
func(_, _ interface{}) { manager.updateConfiguration() },
|
|
func(_ interface{}) { manager.updateConfiguration() })
|
|
inform.ForResource(resourceExploringWebhookConfigurationsGVR, configHandlers)
|
|
|
|
return manager
|
|
}
|
|
|
|
func (m *interpreterConfigManager) updateConfiguration() {
|
|
configurations, err := m.lister.List(labels.Everything())
|
|
if err != nil {
|
|
utilruntime.HandleError(fmt.Errorf("error updating configuration: %v", err))
|
|
return
|
|
}
|
|
|
|
configs := make([]*configv1alpha1.ResourceInterpreterWebhookConfiguration, 0)
|
|
for _, c := range configurations {
|
|
unstructuredConfig, err := helper.ToUnstructured(c)
|
|
if err != nil {
|
|
klog.Errorf("Failed to transform ResourceInterpreterWebhookConfiguration: %w", err)
|
|
return
|
|
}
|
|
|
|
config := &configv1alpha1.ResourceInterpreterWebhookConfiguration{}
|
|
err = helper.ConvertToTypedObject(unstructuredConfig, config)
|
|
if err != nil {
|
|
gvk := unstructuredConfig.GroupVersionKind().String()
|
|
klog.Errorf("Failed to convert object(%s), err: %v", gvk, err)
|
|
return
|
|
}
|
|
configs = append(configs, config)
|
|
}
|
|
|
|
m.configuration.Store(mergeResourceExploreWebhookConfigurations(configs))
|
|
m.initialSynced.Store(true)
|
|
}
|
|
|
|
func mergeResourceExploreWebhookConfigurations(configurations []*configv1alpha1.ResourceInterpreterWebhookConfiguration) []WebhookAccessor {
|
|
sort.SliceStable(configurations, func(i, j int) bool {
|
|
return configurations[i].Name < configurations[j].Name
|
|
})
|
|
|
|
var accessors []WebhookAccessor
|
|
for ci, config := range configurations {
|
|
for hi, hook := range config.Webhooks {
|
|
uid := fmt.Sprintf("%s/%s", config.Name, hook.Name)
|
|
accessors = append(accessors, NewResourceExploringAccessor(uid, config.Name, &configurations[ci].Webhooks[hi]))
|
|
}
|
|
}
|
|
return accessors
|
|
}
|