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dynamicconfig: implement control plane (1/n)
Signed-off-by: spacewander <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| /* | ||
| Copyright The HTNN Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package controller | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "k8s.io/apimachinery/pkg/types" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/builder" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/handler" | ||
| "sigs.k8s.io/controller-runtime/pkg/predicate" | ||
| "sigs.k8s.io/controller-runtime/pkg/reconcile" | ||
|
|
||
| "mosn.io/htnn/controller/internal/istio" | ||
| "mosn.io/htnn/controller/internal/log" | ||
| "mosn.io/htnn/controller/internal/metrics" | ||
| "mosn.io/htnn/controller/pkg/component" | ||
| mosniov1 "mosn.io/htnn/types/apis/v1" | ||
| ) | ||
|
|
||
| // DynamicConfigReconciler reconciles a DynamicConfig object | ||
| type DynamicConfigReconciler struct { | ||
| component.ResourceManager | ||
| Output component.Output | ||
| } | ||
|
|
||
| //+kubebuilder:rbac:groups=htnn.mosn.io,resources=dynamicconfigs,verbs=get;list;watch;create;update;patch;delete | ||
| //+kubebuilder:rbac:groups=htnn.mosn.io,resources=dynamicconfigs/status,verbs=get;update;patch | ||
| //+kubebuilder:rbac:groups=htnn.mosn.io,resources=dynamicconfigs/finalizers,verbs=update | ||
|
|
||
| func (r *DynamicConfigReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { | ||
| reconcilationStart := time.Now() | ||
| defer func() { | ||
| reconcilationDuration := time.Since(reconcilationStart).Seconds() | ||
| metrics.DynamicConfigReconcileDurationDistribution.Record(reconcilationDuration) | ||
| }() | ||
|
|
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| log.Info("Reconcile DynamicConfig") | ||
|
|
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| var dynamicConfigs mosniov1.DynamicConfigList | ||
| state, err := r.dynamicconfigsToState(ctx, &dynamicConfigs) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
|
|
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| err = r.generateCustomResource(ctx, state) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
|
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| err = r.updateDynamicConfigs(ctx, &dynamicConfigs) | ||
| return ctrl.Result{}, err | ||
| } | ||
|
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| type dynamicConfigReconcileState struct { | ||
| namespaceToDynamicConfigs map[string]map[string]*mosniov1.DynamicConfig | ||
| } | ||
|
|
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| func (r *DynamicConfigReconciler) dynamicconfigsToState(ctx context.Context, | ||
| dynamicConfigs *mosniov1.DynamicConfigList) (*dynamicConfigReconcileState, error) { | ||
|
|
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| if err := r.List(ctx, dynamicConfigs); err != nil { | ||
| return nil, fmt.Errorf("failed to list DynamicConfig: %w", err) | ||
| } | ||
|
|
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| namespaceToDynamicConfigs := make(map[string]map[string]*mosniov1.DynamicConfig) | ||
| for i := range dynamicConfigs.Items { | ||
| dynamicConfig := &dynamicConfigs.Items[i] | ||
|
|
||
| // defensive code in case the webhook doesn't work | ||
| if dynamicConfig.IsSpecChanged() { | ||
| err := mosniov1.ValidateDynamicConfig(dynamicConfig) | ||
| if err != nil { | ||
| log.Errorf("invalid DynamicConfig, err: %v, name: %s, namespace: %s", dynamicConfig.Name, dynamicConfig.Namespace) | ||
| dynamicConfig.SetAccepted(mosniov1.ReasonInvalid, err.Error()) | ||
| continue | ||
| } | ||
| } | ||
| if !dynamicConfig.IsValid() { | ||
| continue | ||
| } | ||
|
|
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| namespace := dynamicConfig.Namespace | ||
| if namespaceToDynamicConfigs[namespace] == nil { | ||
| namespaceToDynamicConfigs[namespace] = make(map[string]*mosniov1.DynamicConfig) | ||
| } | ||
|
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| name := dynamicConfig.Spec.Type | ||
| if namespaceToDynamicConfigs[namespace][name] != nil { | ||
| log.Errorf("duplicate DynamicConfig %s/%s, k8s name %s takes effect, k8s name %s ignored", namespace, name, | ||
| namespaceToDynamicConfigs[namespace][name].Name, dynamicConfig.Name) | ||
| dynamicConfig.SetAccepted(mosniov1.ReasonInvalid, | ||
| fmt.Sprintf("duplicate with another DynamicConfig %s/%s, k8s name %s", namespace, name, dynamicConfig.Name)) | ||
| } else { | ||
| namespaceToDynamicConfigs[namespace][name] = dynamicConfig | ||
| dynamicConfig.SetAccepted(mosniov1.ReasonAccepted) | ||
| } | ||
| } | ||
|
|
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| state := &dynamicConfigReconcileState{ | ||
| namespaceToDynamicConfigs: namespaceToDynamicConfigs, | ||
| } | ||
| return state, nil | ||
| } | ||
|
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| func (r *DynamicConfigReconciler) generateCustomResource(ctx context.Context, state *dynamicConfigReconcileState) error { | ||
| efs := istio.GenerateDynamicConfigs(state.namespaceToDynamicConfigs) | ||
| return r.Output.FromDynamicConfig(ctx, efs) | ||
| } | ||
|
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| func (r *DynamicConfigReconciler) updateDynamicConfigs(ctx context.Context, dynamicConfigs *mosniov1.DynamicConfigList) error { | ||
| for i := range dynamicConfigs.Items { | ||
| dynamicConfig := &dynamicConfigs.Items[i] | ||
| if !dynamicConfig.Status.IsChanged() { | ||
| continue | ||
| } | ||
| dynamicConfig.Status.Reset() | ||
| if err := r.UpdateStatus(ctx, dynamicConfig, &dynamicConfig.Status); err != nil { | ||
| return fmt.Errorf("failed to update DynamicConfig status: %w, namespacedName: %v", | ||
| err, | ||
| types.NamespacedName{Name: dynamicConfig.Name, Namespace: dynamicConfig.Namespace}) | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // SetupWithManager sets up the controller with the Manager. | ||
| func (r *DynamicConfigReconciler) SetupWithManager(mgr ctrl.Manager) error { | ||
| controller := ctrl.NewControllerManagedBy(mgr). | ||
| Named("dynamicConfig"). | ||
| Watches( | ||
| &mosniov1.DynamicConfig{}, | ||
| handler.EnqueueRequestsFromMapFunc(func(_ context.Context, _ client.Object) []reconcile.Request { | ||
| return triggerReconciliation() | ||
| }), | ||
| builder.WithPredicates( | ||
| predicate.GenerationChangedPredicate{}, | ||
| ), | ||
| ) | ||
| return controller.Complete(r) | ||
| } | ||
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