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Signed-off-by: sumeng <zssumeng@gmail.com>
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119 changes: 119 additions & 0 deletions
119
pkg/webhook/cluster/validating/cluster_create_update_handler.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| /* | ||
| Copyright 2023 The Multi Cluster 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 validating | ||
|
|
||
| import ( | ||
| "context" | ||
| "github.com/sumengzs/multi-cluster/api/v1beta1" | ||
| "net/http" | ||
|
|
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| admissionv1 "k8s.io/api/admission/v1" | ||
| "k8s.io/apimachinery/pkg/util/validation/field" | ||
| "k8s.io/klog/v2" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/runtime/inject" | ||
| "sigs.k8s.io/controller-runtime/pkg/webhook/admission" | ||
| ) | ||
|
|
||
| var _ admission.Handler = &ClusterCreateUpdateHandler{} | ||
| var _ admission.DecoderInjector = &ClusterCreateUpdateHandler{} | ||
| var _ inject.Client = &ClusterCreateUpdateHandler{} | ||
|
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| // ClusterCreateUpdateHandler handles Cluster | ||
| type ClusterCreateUpdateHandler struct { | ||
| // To use the client, you need to do the following: | ||
| // - uncomment it | ||
| // - import sigs.k8s.io/controller-runtime/pkg/client | ||
| // - uncomment the InjectClient method at the bottom of this file. | ||
| Client client.Client | ||
|
|
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| // Decoder decodes objects | ||
| Decoder *admission.Decoder | ||
| } | ||
|
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| // Handle handles admission requests. | ||
| func (h *ClusterCreateUpdateHandler) Handle(ctx context.Context, req admission.Request) admission.Response { | ||
| switch req.AdmissionRequest.Operation { | ||
| case admissionv1.Create: | ||
| obj := &v1beta1.Cluster{} | ||
| if err := h.Decoder.Decode(req, obj); err != nil { | ||
| return admission.Errored(http.StatusBadRequest, err) | ||
| } | ||
| errList := h.validateCluster(obj) | ||
| if len(errList) != 0 { | ||
| klog.ErrorS(errList.ToAggregate(), "Invalid cluster error") | ||
| return admission.Errored(http.StatusUnprocessableEntity, errList.ToAggregate()) | ||
| } | ||
| case admissionv1.Update: | ||
| obj := &v1beta1.Cluster{} | ||
| if err := h.Decoder.Decode(req, obj); err != nil { | ||
| return admission.Errored(http.StatusBadRequest, err) | ||
| } | ||
| oldObj := &v1beta1.Cluster{} | ||
| if err := h.Decoder.DecodeRaw(req.AdmissionRequest.OldObject, oldObj); err != nil { | ||
| return admission.Errored(http.StatusBadRequest, err) | ||
| } | ||
| errList := h.validateClusterUpdate(oldObj, obj) | ||
| if len(errList) != 0 { | ||
| klog.ErrorS(errList.ToAggregate(), "Invalid cluster error") | ||
| return admission.Errored(http.StatusUnprocessableEntity, errList.ToAggregate()) | ||
| } | ||
| } | ||
| klog.Infof("handle cluster create update request successfully") | ||
| return admission.ValidationResponse(true, "") | ||
| } | ||
|
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| func (h *ClusterCreateUpdateHandler) validateClusterUpdate(oldObj, newObj *v1beta1.Cluster) field.ErrorList { | ||
| latestObject := &v1beta1.Cluster{} | ||
| key := client.ObjectKeyFromObject(newObj) | ||
| err := h.Client.Get(context.TODO(), key, latestObject) | ||
| if err != nil { | ||
| return field.ErrorList{field.InternalError(field.NewPath("cluster"), err)} | ||
| } | ||
| if errorList := h.validateCluster(newObj); errorList != nil { | ||
| return errorList | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
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| func (h *ClusterCreateUpdateHandler) validateCluster(obj *v1beta1.Cluster) field.ErrorList { | ||
| return h.validateClusterSpec(&obj.Spec, field.NewPath("Spec")) | ||
| } | ||
|
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| func (h *ClusterCreateUpdateHandler) validateClusterSpec(spec *v1beta1.ClusterSpec, path *field.Path) field.ErrorList { | ||
| return h.validateSpecConnectConfig(spec.Connect, path.Child("ConnectConfig")) | ||
| } | ||
|
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| func (h *ClusterCreateUpdateHandler) validateSpecConnectConfig(config v1beta1.ConnectConfig, path *field.Path) field.ErrorList { | ||
| if config.Secret == nil && config.Config == nil && config.Token == nil { | ||
| return field.ErrorList{field.Invalid(path, "", "Secret, Config and Token cannot be empty as the same time")} | ||
| } | ||
| return nil | ||
| } | ||
|
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| // InjectClient injects the client into the ClusterCreateUpdateHandler | ||
| func (h *ClusterCreateUpdateHandler) InjectClient(c client.Client) error { | ||
| h.Client = c | ||
| return nil | ||
| } | ||
|
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| // InjectDecoder injects the decoder into the ClusterCreateUpdateHandler | ||
| func (h *ClusterCreateUpdateHandler) InjectDecoder(d *admission.Decoder) error { | ||
| h.Decoder = d | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| /* | ||
| Copyright 2023 The Multi Cluster 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 validating | ||
|
|
||
| import ( | ||
| "sigs.k8s.io/controller-runtime/pkg/webhook/admission" | ||
| ) | ||
|
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| // +kubebuilder:webhook:path=/vcluster,mutating=false,failurePolicy=fail,sideEffects=None,admissionReviewVersions=v1;v1beta1,groups=sumengzs.cn,resources=clusters,verbs=create;update,versions=v1beta1,name=vcluster.kb.io | ||
|
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| var ( | ||
| // HandlerMap contains admission webhook handlers | ||
| HandlerMap = map[string]admission.Handler{ | ||
| "vcluster": &ClusterCreateUpdateHandler{}, | ||
| } | ||
| ) |