forked from Shopify/kubeaudit
/
kubernetes.go
132 lines (118 loc) · 3.7 KB
/
kubernetes.go
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package cmd
import (
"fmt"
"os"
log "github.com/sirupsen/logrus"
appsv1beta1 "k8s.io/api/apps/v1beta1"
apiv1 "k8s.io/api/core/v1"
extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
networking "k8s.io/api/networking/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/pkg/version"
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp" // auth for GKE clusters
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
)
func kubeClientConfig(kubeconfig string) (*rest.Config, error) {
if kubeconfig == "" && !rootConfig.localMode {
fmt.Println("Inside cluster. Not using kube config")
// creates the in-cluster config
return rest.InClusterConfig()
}
// generate config from kubectl config current-context
return clientcmd.BuildConfigFromFlags("", kubeconfig)
}
func kubeClient(kubeconfig string) (*kubernetes.Clientset, error) {
if rootConfig.localMode {
kubeconfig = os.Getenv("HOME") + "/.kube/config"
}
if rootConfig.verbose {
log.SetLevel(log.DebugLevel)
log.AddHook(NewDebugHook())
}
if rootConfig.json {
log.SetFormatter(&log.JSONFormatter{})
}
config, err := kubeClientConfig(kubeconfig)
if err != nil {
panic(err)
}
kube, err := kubernetes.NewForConfig(config)
printKubernetesVersion(kube)
return kube, err
}
func getNamespaces(clientset *kubernetes.Clientset) *apiv1.NamespaceList {
namespaceClient := clientset.Namespaces()
namespaces, err := namespaceClient.List(metav1.ListOptions{})
if err != nil {
log.Error(err)
}
return namespaces
}
func getDeployments(clientset *kubernetes.Clientset) *appsv1beta1.DeploymentList {
deploymentClient := clientset.AppsV1beta1().Deployments(apiv1.NamespaceAll)
deployments, err := deploymentClient.List(metav1.ListOptions{})
if err != nil {
log.Error(err)
}
return deployments
}
func getStatefulSets(clientset *kubernetes.Clientset) *appsv1beta1.StatefulSetList {
statefulSetClient := clientset.AppsV1beta1().StatefulSets(apiv1.NamespaceAll)
statefulSets, err := statefulSetClient.List(metav1.ListOptions{})
if err != nil {
log.Error(err)
}
return statefulSets
}
func getDaemonSets(clientset *kubernetes.Clientset) *extensionsv1beta1.DaemonSetList {
daemonSetClient := clientset.ExtensionsV1beta1().DaemonSets(apiv1.NamespaceAll)
daemonSets, err := daemonSetClient.List(metav1.ListOptions{})
if err != nil {
log.Error(err)
}
return daemonSets
}
func getPods(clientset *kubernetes.Clientset) *apiv1.PodList {
podClient := clientset.Pods(apiv1.NamespaceAll)
pods, err := podClient.List(metav1.ListOptions{})
if err != nil {
log.Error(err)
}
return pods
}
func getReplicationControllers(clientset *kubernetes.Clientset) *apiv1.ReplicationControllerList {
replicationControllerClient := clientset.ReplicationControllers(apiv1.NamespaceAll)
replicationControllers, err := replicationControllerClient.List(metav1.ListOptions{})
if err != nil {
log.Error(err)
}
return replicationControllers
}
func getNetworkPolicies(clientset *kubernetes.Clientset) *networking.NetworkPolicyList {
netPolClient := clientset.NetworkPolicies(apiv1.NamespaceAll)
netPols, err := netPolClient.List(metav1.ListOptions{})
if err != nil {
log.Error(err)
}
return netPols
}
func printKubernetesVersion(clientset *kubernetes.Clientset) {
discoveryClient := clientset.Discovery()
serverInfo, err := discoveryClient.ServerVersion()
if err != nil {
log.Error(err)
}
log.WithFields(log.Fields{
"Major": serverInfo.Major,
"Minor": serverInfo.Minor,
"Platform": serverInfo.Platform,
}).Info("Kubernetes server version")
clientInfo := version.Get()
log.WithFields(log.Fields{
"Major": clientInfo.Major,
"Minor": clientInfo.Minor,
"Platform": clientInfo.Platform,
}).Info("Kubernetes client version")
}