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a110efb96c
# Conflicts: # main.go # pkg/annotations/annotations.go # pkg/annotations/controller.go # pkg/controller/controller.go # pkg/controller/controller_test.go # pkg/engine/engine.go # pkg/engine/generation.go # pkg/engine/mutation.go # pkg/engine/validation.go # pkg/event/controller.go # pkg/webhooks/mutation.go # pkg/webhooks/policyvalidation.go # pkg/webhooks/report.go # pkg/webhooks/server.go # pkg/webhooks/validation.go
87 lines
3.3 KiB
Go
87 lines
3.3 KiB
Go
package webhooks
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import (
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"github.com/golang/glog"
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engine "github.com/nirmata/kyverno/pkg/engine"
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"github.com/nirmata/kyverno/pkg/info"
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v1beta1 "k8s.io/api/admission/v1beta1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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// HandleMutation handles mutating webhook admission request
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func (ws *WebhookServer) HandleMutation(request *v1beta1.AdmissionRequest) (bool, engine.EngineResponse) {
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var patches [][]byte
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var policyInfos []info.PolicyInfo
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glog.V(5).Infof("Receive request in mutating webhook: Kind=%s, Namespace=%s Name=%s UID=%s patchOperation=%s",
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request.Kind.Kind, request.Namespace, request.Name, request.UID, request.Operation)
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resource, err := engine.ConvertToUnstructured(request.Object.Raw)
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if err != nil {
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glog.Errorf("unable to convert raw resource to unstructured: %v", err)
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}
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//TODO: check if resource gvk is available in raw resource,
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// if not then set it from the api request
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resource.SetGroupVersionKind(schema.GroupVersionKind{Group: request.Kind.Group, Version: request.Kind.Version, Kind: request.Kind.Kind})
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//TODO: check if the name and namespace is also passed right in the resource?
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engineResponse := engine.EngineResponse{PatchedResource: *resource}
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policies, err := ws.pLister.List(labels.NewSelector())
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if err != nil {
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//TODO check if the CRD is created ?
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// Unable to connect to policy Lister to access policies
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glog.Errorln("Unable to connect to policy controller to access policies. Mutation Rules are NOT being applied")
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glog.Warning(err)
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return true, engineResponse
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}
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for _, policy := range policies {
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// check if policy has a rule for the admission request kind
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if !StringInSlice(request.Kind.Kind, getApplicableKindsForPolicy(policy)) {
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continue
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}
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policyInfo := info.NewPolicyInfo(policy.Name, resource.GetKind(), resource.GetName(), resource.GetNamespace(), policy.Spec.ValidationFailureAction)
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glog.V(4).Infof("Handling mutation for Kind=%s, Namespace=%s Name=%s UID=%s patchOperation=%s",
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resource.GetKind(), resource.GetNamespace(), resource.GetName(), request.UID, request.Operation)
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glog.V(4).Infof("Applying policy %s with %d rules\n", policy.ObjectMeta.Name, len(policy.Spec.Rules))
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engineResponse = engine.Mutate(*policy, *resource)
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policyInfo.AddRuleInfos(engineResponse.RuleInfos)
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if !policyInfo.IsSuccessful() {
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glog.V(4).Infof("Failed to apply policy %s on resource %s/%s\n", policy.Name, resource.GetNamespace(), resource.GetName())
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glog.V(4).Info("Failed rule details")
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for _, r := range engineResponse.RuleInfos {
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glog.V(4).Infof("%s: %s\n", r.Name, r.Msgs)
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}
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continue
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}
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// build annotations per policy being applied to show the mutation changes
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patches = append(patches, engineResponse.Patches...)
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glog.V(4).Infof("Mutation from policy %s has applied succesfully to %s %s/%s", policy.Name, request.Kind.Kind, resource.GetNamespace(), resource.GetName())
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}
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// ADD ANNOTATIONS
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// TODO: merge the annotation patch with the patch response
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// ADD EVENTS
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if len(patches) > 0 {
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eventsInfo := newEventInfoFromPolicyInfo(policyInfos, (request.Operation == v1beta1.Update), info.Mutation)
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ws.eventGen.Add(eventsInfo...)
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}
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ok, msg := isAdmSuccesful(policyInfos)
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if ok {
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engineResponse.Patches = patches
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return true, engineResponse
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}
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glog.Errorf("Failed to mutate the resource: %s\n", msg)
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return false, engineResponse
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}
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