LinuCエヴァンジェリストの鯨井貴博@opensourcetechです。
はじめに
kubernetesでkubectlのコマンド入力を省略形(ショートネーム)で行っている方をみかけたので、
ちょっと調べてみました。
例えば、以下のような使い方です。
kubeuser@kubemaster1:~$ kubectl get po NAME READY STATUS RESTARTS AGE nginx-6c67f5ff6f-5vbvf 1/1 Running 0 6d7h nginx-6c67f5ff6f-lfl8l 1/1 Running 0 6d7h nginx2-589cdbd4b8-6c848 1/1 Running 0 2d20h nginx2-589cdbd4b8-sgq8b 1/1 Running 0 2d21h kubeuser@kubemaster1:~$ kubectl get pods NAME READY STATUS RESTARTS AGE nginx-6c67f5ff6f-5vbvf 1/1 Running 0 6d7h nginx-6c67f5ff6f-lfl8l 1/1 Running 0 6d7h nginx2-589cdbd4b8-6c848 1/1 Running 0 2d20h nginx2-589cdbd4b8-sgq8b 1/1 Running 0 2d21h
ショートネーム
"pods"を略して"po"、
"endpoints"を略して"ep"。
これは、ショートネームという表記方法です。
APIリソースとショートネームの一覧
APIリソースとショートネームの一覧ですが、"kubectl api-resources"で確認できます。
kubeuser@kubemaster1:~$ kubectl api-resources NAME SHORTNAMES APIGROUP NAMESPACED KIND bindings true Binding componentstatuses cs false ComponentStatus configmaps cm true ConfigMap endpoints ep true Endpoints events ev true Event limitranges limits true LimitRange namespaces ns false Namespace nodes no false Node persistentvolumeclaims pvc true PersistentVolumeClaim persistentvolumes pv false PersistentVolume pods po true Pod podtemplates true PodTemplate replicationcontrollers rc true ReplicationController resourcequotas quota true ResourceQuota secrets true Secret serviceaccounts sa true ServiceAccount services svc true Service mutatingwebhookconfigurations admissionregistration.k8s.io false MutatingWebhookConfiguration validatingwebhookconfigurations admissionregistration.k8s.io false ValidatingWebhookConfiguration customresourcedefinitions crd,crds apiextensions.k8s.io false CustomResourceDefinition apiservices apiregistration.k8s.io false APIService controllerrevisions apps true ControllerRevision daemonsets ds apps true DaemonSet deployments deploy apps true Deployment replicasets rs apps true ReplicaSet statefulsets sts apps true StatefulSet tokenreviews authentication.k8s.io false TokenReview localsubjectaccessreviews authorization.k8s.io true LocalSubjectAccessReview selfsubjectaccessreviews authorization.k8s.io false SelfSubjectAccessReview selfsubjectrulesreviews authorization.k8s.io false SelfSubjectRulesReview subjectaccessreviews authorization.k8s.io false SubjectAccessReview horizontalpodautoscalers hpa autoscaling true HorizontalPodAutoscaler cronjobs cj batch true CronJob jobs batch true Job certificatesigningrequests csr certificates.k8s.io false CertificateSigningRequest leases coordination.k8s.io true Lease bgpconfigurations crd.projectcalico.org false BGPConfiguration bgppeers crd.projectcalico.org false BGPPeer blockaffinities crd.projectcalico.org false BlockAffinity caliconodestatuses crd.projectcalico.org false CalicoNodeStatus clusterinformations crd.projectcalico.org false ClusterInformation felixconfigurations crd.projectcalico.org false FelixConfiguration globalnetworkpolicies crd.projectcalico.org false GlobalNetworkPolicy globalnetworksets crd.projectcalico.org false GlobalNetworkSet hostendpoints crd.projectcalico.org false HostEndpoint ipamblocks crd.projectcalico.org false IPAMBlock ipamconfigs crd.projectcalico.org false IPAMConfig ipamhandles crd.projectcalico.org false IPAMHandle ippools crd.projectcalico.org false IPPool ipreservations crd.projectcalico.org false IPReservation kubecontrollersconfigurations crd.projectcalico.org false KubeControllersConfiguration networkpolicies crd.projectcalico.org true NetworkPolicy networksets crd.projectcalico.org true NetworkSet endpointslices discovery.k8s.io true EndpointSlice events ev events.k8s.io true Event ingresses ing extensions true Ingress ingressclasses networking.k8s.io false IngressClass ingresses ing networking.k8s.io true Ingress networkpolicies netpol networking.k8s.io true NetworkPolicy runtimeclasses node.k8s.io false RuntimeClass catalogsources catsrc operators.coreos.com true CatalogSource clusterserviceversions csv,csvs operators.coreos.com true ClusterServiceVersion installplans ip operators.coreos.com true InstallPlan operatorconditions condition operators.coreos.com true OperatorCondition operatorgroups og operators.coreos.com true OperatorGroup operators operators.coreos.com false Operator subscriptions sub,subs operators.coreos.com true Subscription poddisruptionbudgets pdb policy true PodDisruptionBudget podsecuritypolicies psp policy false PodSecurityPolicy viziers px.dev true Vizier clusterrolebindings rbac.authorization.k8s.io false ClusterRoleBinding clusterroles rbac.authorization.k8s.io false ClusterRole rolebindings rbac.authorization.k8s.io true RoleBinding roles rbac.authorization.k8s.io true Role priorityclasses pc scheduling.k8s.io false PriorityClass csidrivers storage.k8s.io false CSIDriver csinodes storage.k8s.io false CSINode storageclasses sc storage.k8s.io false StorageClass volumeattachments storage.k8s.io false VolumeAttachment
kubernetesの公式ドキュメントにも、情報はあります。
https://kubernetes.io/docs/reference/kubectl/overview/#resource-types
おわりに
たいしたことではないのですが、
こういう小ネタを知っているか知らないかで操作スピードも速くなるし、
ちょっとkubernetesに詳しい人感を出せていいですねw
※そうじゃねえだろうwww
