mirror of
https://github.com/kubescape/kubescape.git
synced 2026-02-14 18:09:55 +00:00
117 lines
4.5 KiB
Go
117 lines
4.5 KiB
Go
package resourcehandler
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import (
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"context"
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"fmt"
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"strings"
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logger "github.com/kubescape/go-logger"
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"github.com/kubescape/go-logger/helpers"
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"github.com/kubescape/k8s-interface/cloudsupport"
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cloudsupportv1 "github.com/kubescape/k8s-interface/cloudsupport/v1"
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"github.com/kubescape/k8s-interface/k8sinterface"
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"github.com/kubescape/kubescape/v2/core/cautils"
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"github.com/kubescape/kubescape/v2/core/pkg/opaprocessor"
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"github.com/kubescape/opa-utils/reporthandling/apis"
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helpersv1 "github.com/kubescape/opa-utils/reporthandling/helpers/v1"
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reportv2 "github.com/kubescape/opa-utils/reporthandling/v2"
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"go.opentelemetry.io/otel"
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clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
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)
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// CollectResources uses the provided resource handler to collect resources and returns an updated OPASessionObj
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func CollectResources(ctx context.Context, rsrcHandler IResourceHandler, policyIdentifier []cautils.PolicyIdentifier, opaSessionObj *cautils.OPASessionObj, progressListener opaprocessor.IJobProgressNotificationClient) error {
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ctx, span := otel.Tracer("").Start(ctx, "resourcehandler.CollectResources")
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defer span.End()
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opaSessionObj.Report.ClusterAPIServerInfo = rsrcHandler.GetClusterAPIServerInfo(ctx)
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// set cloud metadata only when scanning a cluster
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if opaSessionObj.Metadata.ScanMetadata.ScanningTarget == reportv2.Cluster {
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setCloudMetadata(opaSessionObj)
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}
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resourcesMap, allResources, ksResources, err := rsrcHandler.GetResources(ctx, opaSessionObj, &policyIdentifier[0].Designators, progressListener)
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if err != nil {
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return err
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}
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opaSessionObj.K8SResources = resourcesMap
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opaSessionObj.AllResources = allResources
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opaSessionObj.ArmoResource = ksResources
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if (opaSessionObj.K8SResources == nil || len(*opaSessionObj.K8SResources) == 0) && (opaSessionObj.ArmoResource == nil || len(*opaSessionObj.ArmoResource) == 0) {
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return fmt.Errorf("empty list of resources")
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}
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return nil
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}
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func setCloudMetadata(opaSessionObj *cautils.OPASessionObj) {
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iCloudMetadata := getCloudMetadata(opaSessionObj, k8sinterface.GetConfig())
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if iCloudMetadata == nil {
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return
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}
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cloudMetadata := reportv2.NewCloudMetadata(iCloudMetadata)
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opaSessionObj.Metadata.ContextMetadata.ClusterContextMetadata.CloudMetadata = cloudMetadata
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opaSessionObj.Metadata.ClusterMetadata.CloudMetadata = cloudMetadata // deprecated - fallback
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opaSessionObj.Report.ClusterCloudProvider = iCloudMetadata.Provider().ToString() // deprecated - fallback
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logger.L().Debug("Cloud metadata", helpers.String("provider", iCloudMetadata.Provider().ToString()), helpers.String("name", iCloudMetadata.GetName()))
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}
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// getCloudMetadata - get cloud metadata from kubeconfig or API server
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// There are 3 options:
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// 1. Get cloud provider from API server git version (EKS, GKE)
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// 2. Get cloud provider from kubeconfig by parsing the cluster context (EKS, GKE)
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// 3. Get cloud provider from kubeconfig by parsing the server URL (AKS)
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func getCloudMetadata(opaSessionObj *cautils.OPASessionObj, config *clientcmdapi.Config) apis.ICloudParser {
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if config == nil {
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return nil
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}
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var provider string
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// attempting to get cloud provider from API server git version
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if opaSessionObj.Report.ClusterAPIServerInfo != nil {
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provider = cloudsupport.GetCloudProvider(opaSessionObj.Report.ClusterAPIServerInfo.GitVersion)
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}
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if provider == cloudsupportv1.AKS || isAKS(config) {
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return helpersv1.NewAKSMetadata(k8sinterface.GetContextName())
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}
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if provider == cloudsupportv1.EKS || isEKS(config) {
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return helpersv1.NewEKSMetadata(k8sinterface.GetContextName())
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}
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if provider == cloudsupportv1.GKE || isGKE(config) {
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return helpersv1.NewGKEMetadata(k8sinterface.GetContextName())
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}
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return nil
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}
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// check if the server is AKS. e.g. https://XXX.XX.XXX.azmk8s.io:443
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func isAKS(config *clientcmdapi.Config) bool {
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const serverIdentifierAKS = "azmk8s.io"
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if cluster, ok := config.Clusters[k8sinterface.GetContextName()]; ok {
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return strings.Contains(cluster.Server, serverIdentifierAKS)
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}
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return false
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}
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// check if the server is EKS. e.g. arn:aws:eks:eu-west-1:xxx:cluster/xxxx
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func isEKS(config *clientcmdapi.Config) bool {
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if context, ok := config.Contexts[k8sinterface.GetContextName()]; ok {
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return strings.Contains(context.Cluster, cloudsupportv1.EKS)
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}
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return false
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}
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// check if the server is GKE. e.g. gke_xxx-xx-0000_us-central1-c_xxxx-1
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func isGKE(config *clientcmdapi.Config) bool {
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if context, ok := config.Contexts[k8sinterface.GetContextName()]; ok {
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return strings.Contains(context.Cluster, cloudsupportv1.GKE)
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}
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return false
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}
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