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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,236 @@ | ||
| /* | ||
| Copyright © 2021 Alex Krzos [email protected] | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
| package capacity | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
|
|
||
| "github.com/akrzos/kubeSize/internal/kube" | ||
| "github.com/akrzos/kubeSize/internal/output" | ||
| "github.com/pkg/errors" | ||
| "github.com/spf13/cobra" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| ) | ||
|
|
||
| var sizeCmd = &cobra.Command{ | ||
| Use: "size", | ||
| Aliases: []string{"s"}, | ||
| Short: "Get cluster size data", | ||
| Long: `Get counts of many Kubernetes objects in a cluster`, | ||
| PreRun: func(cmd *cobra.Command, args []string) { | ||
| if err := output.ValidateOutput(*cmd); err != nil { | ||
| fmt.Fprintf(os.Stderr, "error: %v\n", err) | ||
| os.Exit(1) | ||
| } | ||
| }, | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
|
|
||
| clientset, err := kube.CreateClientSet(KubernetesConfigFlags) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to create clientset") | ||
| } | ||
|
|
||
| clusterSizeData := new(output.ClusterSizeData) | ||
|
|
||
| // Cluster APIs | ||
| namespaces, err := clientset.CoreV1().Namespaces().List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list namespaces") | ||
| } | ||
| nodes, err := clientset.CoreV1().Nodes().List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list nodes") | ||
| } | ||
| persistentVolumes, err := clientset.CoreV1().PersistentVolumes().List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list persistent volumes") | ||
| } | ||
| serviceAccounts, err := clientset.CoreV1().ServiceAccounts("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list service accounts") | ||
| } | ||
| clusterRoles, err := clientset.RbacV1().ClusterRoles().List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list cluster roles") | ||
| } | ||
| clusterRoleBindings, err := clientset.RbacV1().ClusterRoleBindings().List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list cluster role bindings") | ||
| } | ||
| roles, err := clientset.RbacV1().Roles("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list roles") | ||
| } | ||
| roleBindings, err := clientset.RbacV1().RoleBindings("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list role bindings") | ||
| } | ||
| resourceQuotas, err := clientset.CoreV1().ResourceQuotas("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list resourcequotas") | ||
| } | ||
| networkPolicy, err := clientset.NetworkingV1().NetworkPolicies("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list networkpolicy") | ||
| } | ||
|
|
||
| // Workloads APIs | ||
| pods, err := clientset.CoreV1().Pods("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list pods") | ||
| } | ||
| replicaSets, err := clientset.AppsV1().ReplicaSets("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list replicasets") | ||
| } | ||
| replicationControllers, err := clientset.CoreV1().ReplicationControllers("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list replication controllers") | ||
| } | ||
| deployments, err := clientset.AppsV1().Deployments("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list deployments") | ||
| } | ||
| daemonsets, err := clientset.AppsV1().DaemonSets("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list daemonsets") | ||
| } | ||
| statefulSets, err := clientset.AppsV1().StatefulSets("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list statefulsets") | ||
| } | ||
| cronJobs, err := clientset.BatchV1beta1().CronJobs("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list jobs") | ||
| } | ||
| jobs, err := clientset.BatchV1().Jobs("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list jobs") | ||
| } | ||
|
|
||
| // Service APIs | ||
| endPoints, err := clientset.CoreV1().Endpoints("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list end points") | ||
| } | ||
| services, err := clientset.CoreV1().Services("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list services") | ||
| } | ||
| ingresses, err := clientset.NetworkingV1beta1().Ingresses("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list ingresses") | ||
| } | ||
|
|
||
| // Config And Storage APIs | ||
| configmaps, err := clientset.CoreV1().ConfigMaps("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list configmaps") | ||
| } | ||
| secrets, err := clientset.CoreV1().Secrets("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list secrets") | ||
| } | ||
| persistentVolumeClaims, err := clientset.CoreV1().PersistentVolumeClaims("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list persistentvolumesclaims") | ||
| } | ||
| storageClasses, err := clientset.StorageV1().StorageClasses().List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list storageclasses") | ||
| } | ||
| volumeAttachments, err := clientset.StorageV1().VolumeAttachments().List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list storageclasses") | ||
| } | ||
|
|
||
| // Metadata APIs | ||
| events, err := clientset.CoreV1().Events("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list events") | ||
| } | ||
| limitRanges, err := clientset.CoreV1().LimitRanges("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list limitrange") | ||
| } | ||
| podDisruptionBudget, err := clientset.PolicyV1beta1().PodDisruptionBudgets("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list poddisruptionbudget") | ||
| } | ||
| podSecurityPolicy, err := clientset.PolicyV1beta1().PodSecurityPolicies().List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list podsecuritypolicy") | ||
| } | ||
|
|
||
| // Cluster APIs | ||
| clusterSizeData.Namespace = len(namespaces.Items) | ||
| clusterSizeData.Node = len(nodes.Items) | ||
| clusterSizeData.PersistentVolume = len(persistentVolumes.Items) | ||
| clusterSizeData.ServiceAccount = len(serviceAccounts.Items) | ||
| clusterSizeData.ClusterRole = len(clusterRoles.Items) | ||
| clusterSizeData.ClusterRoleBinding = len(clusterRoleBindings.Items) | ||
| clusterSizeData.Role = len(roles.Items) | ||
| clusterSizeData.RoleBinding = len(roleBindings.Items) | ||
| clusterSizeData.ResourceQuota = len(resourceQuotas.Items) | ||
| clusterSizeData.NetworkPolicy = len(networkPolicy.Items) | ||
|
|
||
| // Workloads APIs | ||
| for _, pod := range pods.Items { | ||
| for range pod.Spec.Containers { | ||
| clusterSizeData.Container++ | ||
| } | ||
| } | ||
| clusterSizeData.Pod = len(pods.Items) | ||
| clusterSizeData.ReplicaSet = len(replicaSets.Items) | ||
| clusterSizeData.ReplicaController = len(replicationControllers.Items) | ||
| clusterSizeData.Deployment = len(deployments.Items) | ||
| clusterSizeData.Daemonset = len(daemonsets.Items) | ||
| clusterSizeData.StatefulSet = len(statefulSets.Items) | ||
| clusterSizeData.CronJob = len(cronJobs.Items) | ||
| clusterSizeData.Job = len(jobs.Items) | ||
|
|
||
| // Service APIs | ||
| clusterSizeData.EndPoints = len(endPoints.Items) | ||
| clusterSizeData.Service = len(services.Items) | ||
| clusterSizeData.Ingress = len(ingresses.Items) | ||
|
|
||
| // Config And Storage APIs | ||
| clusterSizeData.Configmap = len(configmaps.Items) | ||
| clusterSizeData.Secret = len(secrets.Items) | ||
| clusterSizeData.PersistentVolumeClaim = len(persistentVolumeClaims.Items) | ||
| clusterSizeData.StorageClass = len(storageClasses.Items) | ||
| clusterSizeData.VolumeAttachment = len(volumeAttachments.Items) | ||
|
|
||
| // Metadata APIs | ||
| clusterSizeData.Event = len(events.Items) | ||
| clusterSizeData.LimitRange = len(limitRanges.Items) | ||
| clusterSizeData.PodDisruptionBudget = len(podDisruptionBudget.Items) | ||
| clusterSizeData.PodSecurityPolicy = len(podSecurityPolicy.Items) | ||
|
|
||
| displayNoHeaders, _ := cmd.Flags().GetBool("no-headers") | ||
|
|
||
| displayFormat, _ := cmd.Flags().GetString("output") | ||
|
|
||
| output.DisplayClusterSizeData(*clusterSizeData, !displayNoHeaders, displayFormat) | ||
|
|
||
| return nil | ||
| }, | ||
| } | ||
|
|
||
| func init() { | ||
| rootCmd.AddCommand(sizeCmd) | ||
| } |
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