mirror of
https://github.com/kyverno/kyverno.git
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82 lines
2.6 KiB
Go
82 lines
2.6 KiB
Go
package mutation
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import (
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"context"
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"github.com/go-logr/logr"
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kyvernov1 "github.com/kyverno/kyverno/api/kyverno/v1"
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"github.com/kyverno/kyverno/pkg/clients/dclient"
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engineapi "github.com/kyverno/kyverno/pkg/engine/api"
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"github.com/kyverno/kyverno/pkg/engine/handlers"
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"github.com/kyverno/kyverno/pkg/engine/internal"
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"github.com/kyverno/kyverno/pkg/engine/mutate"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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)
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type mutateExistingHandler struct {
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client dclient.Interface
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contextLoader engineapi.EngineContextLoaderFactory
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}
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func NewMutateExistingHandler(
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client dclient.Interface,
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contextLoader engineapi.EngineContextLoaderFactory,
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) handlers.Handler {
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return mutateExistingHandler{
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client: client,
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contextLoader: contextLoader,
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}
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}
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func (h mutateExistingHandler) Process(
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ctx context.Context,
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logger logr.Logger,
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policyContext engineapi.PolicyContext,
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resource unstructured.Unstructured,
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rule kyvernov1.Rule,
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) (unstructured.Unstructured, []engineapi.RuleResponse) {
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policy := policyContext.Policy()
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contextLoader := h.contextLoader(policy, rule)
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var responses []engineapi.RuleResponse
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logger.V(3).Info("processing mutate rule")
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var patchedResources []resourceInfo
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targets, err := loadTargets(h.client, rule.Mutation.Targets, policyContext, logger)
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if err != nil {
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rr := internal.RuleError(rule, engineapi.Mutation, "", err)
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responses = append(responses, *rr)
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} else {
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patchedResources = append(patchedResources, targets...)
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}
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for _, patchedResource := range patchedResources {
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if patchedResource.unstructured.Object == nil {
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continue
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}
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policyContext := policyContext.Copy()
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if err := policyContext.JSONContext().AddTargetResource(patchedResource.unstructured.Object); err != nil {
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logger.Error(err, "failed to add target resource to the context")
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continue
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}
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// logger.V(4).Info("apply rule to resource", "resource namespace", patchedResource.unstructured.GetNamespace(), "resource name", patchedResource.unstructured.GetName())
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var mutateResp *mutate.Response
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if rule.Mutation.ForEachMutation != nil {
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m := &forEachMutator{
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rule: &rule,
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foreach: rule.Mutation.ForEachMutation,
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policyContext: policyContext,
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resource: patchedResource,
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log: logger,
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contextLoader: contextLoader,
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nesting: 0,
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}
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mutateResp = m.mutateForEach(ctx)
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} else {
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mutateResp = mutateResource(&rule, policyContext, patchedResource.unstructured, logger)
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}
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if ruleResponse := buildRuleResponse(&rule, mutateResp, patchedResource); ruleResponse != nil {
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responses = append(responses, *ruleResponse)
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}
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}
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return resource, responses
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}
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