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main.go
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main.go
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package main
import (
"context"
"encoding/json"
"flag"
"fmt"
"os"
workloads "github.com/fairwindsops/insights-plugins/plugins/workloads/pkg"
"github.com/sirupsen/logrus"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/restmapper"
ctrl "sigs.k8s.io/controller-runtime"
)
func main() {
ctx := context.Background()
auditOutputFile := flag.String("output-file", "", "Destination file for audit results")
flag.Parse()
dynamic, restMapper, kube, clusterName, err := getKubeClient()
if err != nil {
logrus.Fatalf("error fetching Kubernetes client: %v", err)
}
logrus.Info("connected to kube")
resources, err := workloads.CreateResourceProviderFromAPI(ctx, dynamic, restMapper, kube, clusterName)
if err != nil {
logrus.Fatalf("error fetching Kubernetes resources: %v", err)
}
logrus.Info("got resources")
var outputBytes []byte
outputBytes, err = json.MarshalIndent(resources, "", " ")
if err != nil {
logrus.Fatalf("error marshalling audit: %v", err)
}
if *auditOutputFile != "" {
err := os.WriteFile(*auditOutputFile, []byte(outputBytes), 0644)
if err != nil {
logrus.Fatalf("error writing output to file: %v", err)
}
}
}
func getKubeClient() (dynamic.Interface, meta.RESTMapper, kubernetes.Interface, string, error) {
kubeConf, err := ctrl.GetConfig()
if err != nil {
return nil, nil, nil, "", fmt.Errorf("fetching KubeConfig: %w", err)
}
kube, err := kubernetes.NewForConfig(kubeConf)
if err != nil {
return nil, nil, nil, "", fmt.Errorf("creating Kubernetes client: %w", err)
}
dynamicClient, err := dynamic.NewForConfig(kubeConf)
if err != nil {
return nil, nil, nil, "", fmt.Errorf("creating Dynamic client: %w", err)
}
resources, err := restmapper.GetAPIGroupResources(kube.Discovery())
if err != nil {
return nil, nil, nil, "", fmt.Errorf("getting API Group resources: %w", err)
}
restMapper := restmapper.NewDiscoveryRESTMapper(resources)
return dynamicClient, restMapper, kube, kubeConf.Host, nil
}